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GUARANTEED TECHNICAL PARTICULARS Schedule No.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Turbines Generators Name of equipment Generator Terminal Equipment Power Transformers Control, Protection and Metering 415 V Switchgear 24 V Batteries Mechanical Auxiliaries Power and Control Cables 11 kV Isolators 11 kV Vaccum Circuit Breakers 11 kV Lightning Arrestors 11 kV Potential Transformers 11 kV Current Transformers 11 kV Bus Bar, Conductor and Insulators Control/Relay Panels EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 221 SCHEDULE -1 TURBINES
To be filled by tenderer 1. Type of Turbine/Shaft orientation 2. Name of the manufacturer 3. Guaranteed Output (a) Guaranteed rated output at rated head. (b) Guaranteed max. output at max. head. (c) Guaranteed max. output at min. head. Efficiency Guaranteed efficiency at rated head for the following outputs: (a) 100% (b) 80% (c) 60% 4. 5. Discharges Turbine discharge at rated head for the following percentage of rated outputs: (a) 100% (b) 80% (c) 60% 6. Speed (a) (b) (c) (d) 7. (a) Specific speed in M.K.W. units. Rate speed in r.p.m. Maximum runaway speed in r.p.m. Direction of rotation when viewed from generator end/top. Momentary rise in speed on suddenly reducing load to zero from full load ----------- % of rated speed. Time of gate closing for regulation in item 7(a) above ------------- secs. Momentary drop in speed in increasing load from zero to full load -------------% of rated speed. Time of gate opening for regulation at (a) above. (b) 8. (a) (b) EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 222 9. Flywheel effect of: (a) The generator unit for regulation stated above (b) Generator (c) Turbine runner end shaft (d) Flywheel, if any -kgm2 -kgm2 -kgm2 -kgm2 10. Factor of safety (a) Guaranteed minimum factor of safety under worst conditions based on yield point of the material. (b) Name and location of the part having the factor of safety in (a) above. Max. water hammer pressure-----------% of rated head. Runner (a) Material of composition (b) No. of runner blades (c) Runner discharge diameter (d) Weight of runner (e) Source of runner casting Shaft (a) Material of composition (b) Diameter (c) Length (d) Weight Guide Apparatus (a) Material of guide vane (b) No. of guide vanes (c) (i) Leakage through fully closed gate (ii) Torque on runner due to leakage. (d) Description of the method of lubrication Spiral Casing and speed Ring (a) Inlet diameter of casing (b) Dimensions of casing (c) Maximum/design/working pressure (d) Test pressure (e) Material of casing (f) No. of sections of casing (g) Material and construction of speed/stay ring (h) No. of vanes in speed/stay ring Elevation of centre line distributor 11. 12. 13. 14. 15. 16. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 223 17. 18. 19. (a) Critical o value (b) Cavitation guarantee in kg/1000 hrs of operation Recommended plant Draft tube (a) Type (b) Elevation of lowest point in draft tube (c) (i) Total length of draft tube (ii) Length of steel liner (d) Velocity under full load at: (i) Draft tube exit (ii) Draft tube liner end Guide vane servomotor (a) No. of servomotor (b) Material of servomotor body and piston (c) Rating kg. m (d) Range of oil pressure of satisfactory operation Governing system (a) Make (b) Type of governor (c) Rating (d) Guaranteed sensitivity (minimum speed range to which governor will respond) (e) Range of adjustment of permanent speed droop (f) Range of adjustment in speed setting (g) Governing opening and closing times (h) Description and method of operation (i) Adjustment range in governor opening and closing time Oil pressure Vessels (a) No. of vessels per unit (b) Dimensions of pressure vessels (c) Normal volume of oil in each (d) Normal working pressure (e) Grade of oil recommended Oil Pump and Sump Tank (a) No. of oil pump per unit (b) Type of pump (c) Capacity of each pump (d) Dimensions of sump tank 20. 21. 22. 23. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 224 (e) Effective volume of sump tank (f) Total volume of oil in the governing system 24. Inlet Valve (a) Type (b) Operating method (c) Diameter (d) Materials (e) Seals provided (f) Operating pressure Draft Tube Dewatering System (a) No. of pumps (b) Capacity of each pump (c) Total dynamic head Cooling Water System (a) Source (penstock) tapping or tailrace pumping (b) No. of pumps (c) Rating of each pump (d) Capacity of duplex strains (e) Material and size of strainer element Dewatering and Drainage System (a) No. of pumps (b) Type (c) Discharge of each pump (d) Total dynamic head Compressed Air Equipment (a) No. and capacity of compressors (b) Working pressures (c) Volume of air receiver Gear Box (a) Type of Gear (b) Material of gear (c) Gear ratio (d) Overall efficiency Heaviest Package of Shipment (a) Name (b) Weight (c) Dimensions (L x W x H) Largest Package for Shipment (a) Name 25. 26. 27. 28. 29. 30. 31. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 225 (b) Weight (c) Dimensions (L x W x H) 32. Heaviest assembly to be lifted by power house crane (a) Name (b) Weight (c) Dimensions (L x W x H) EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 226 SCHEDULE - 2 SYNCHRONOUS GENERATORS
To be filled by tenderer 1. 2. 3. 4. 5. Name of manufacturer. Type of reference. Shaft orientation. Speed and direction of rotation. (a) (b) (a) (b) Normal voltage between phases Voltage variation Frequency Frequency variation 6. 7. Guaranteed rated output at rated conditions with temperature as mentioned in the specifications. Rated power factor. Guaranteed maximum temperature rise for output guaranteed in item 7 above over cooled air/ambient temperature with cooling water temperature not exceeding............30.............o C. Guaranteed maximum temp. rise for the output guaranteed in item 9 above over cooled air/ambient temperature with cooling water temperature not exceeding: (a) Stator Winding by ETD (b) Rotor Winding by resistance (c) Bearing by ETD 8. 9. 10. 11. Guaranteed overall efficiency of generator at rated voltage, p.f. frequency and 75oC winding temperature computed by the summation of losses EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 227 method in accordance with IS:4889 subject to tolerance in IS:4722 ­ 1968. (a) Full load (b) 80% full load (c) 60% full load 12. ­ 1968 Inherent regulation, i.e., increase in voltage at constant speed and excitation on taking off. (a) (b) (c) Full load 80% full load 60% full load 13. Generator Reactances: (a) Synchronous Reactance (saturated) (i) Direct axis (ii) Quadrature axis Direct axis transient Reactances (i) Saturated (ii) Quadrature axis Sub-transient Reactances (i) Direct axis (ii) Quadrature axis Reactance. (b) (c) 14. 15. 16. 17. 18. Negative phase sequence Zero phase sequence Reactance. Resistance of armature winding per phase. Resistance of field winding. Generators time constants (i) (ii) Direct axis transient open circuit Direct axis transient short circuit 19. Generator characteristic curves (i) Open circuit saturation curve EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 228 (ii) (iii) 20. 21. Short circuit saturation curve Full load saturation curve at rated power factor Short circuit ratio Synchronizing power at kV full load, 50 Hz, p.f. (lagging) Flywheel effect of (a) (b) The rotating parts of the generator Flywheel (if any) 22. 23. Duration for which all parts are guaranteed to withstanding safely maximum runaway speed. Guaranteed minimum factor of safety based on yield point of material under runaway/short circuit conditions and name and location of part having the minimum factor of safety. Maximum I22t Inertia constant. Maximum runaway speed which all parts are guaranteed to withstand for 15 minutes. Embedded Temperature Detectors (a) (b) Number Type 24. 25. 26. 27. 28. 29. Excitation Equipment (a) (b) (c) (d) (e) Name of the manufacturer Type Accuracy of voltage regulation Range of voltage level setting Range of compounding/reactance EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 229 (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) 30. 31. drop compensation Range of control in auto mode Range of control in manual mode Frequency range of operation Excitation power feed Maximum continuous current rating Nominal voltage Celling voltage Response ratio Ambient temperature Protection glass of excitation cubicles Field current for full load on generator at rated power factor and terminal voltage. Stator (a) Material of stator core (b) Insulation of laminations (c) Number of sections in which stator is divided for transport (d) Insulation of winding (e) maximum temperature rise Rotor (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) 32. Construction of field poles Method of attaching field poles Rotor material and construction Field winding construction Insulation of field winding Construction of damper winding Air gap Diameter of assembled rotor Factor of safety at maximum runaway speed based on yield point of material Maximum temperature rise of field winding when operating at rated conditions 33. Generator Cooler (if applicable) (a) (b) (c) Number of air coolers Number of oil coolers Cooling water requirement EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 230 (d) 34. Cooling water pressure Bearings (a) (b) (c) (d) Type Number of bearings Bearing oil specification Quantity required for first filling 35. Generator Brakes (a) (b) Air pressure for satisfactory operation Speed at which brakes are applied 36. Main Shaft (a) Material Details of coupling flange Weight of generator rotating parts Weight of complete generator Current Transformer (a) (b) (c) (d) (e) (f) Type Name of manufacturer Rated transformation ratio Output at rated current and accuracy Accuracy class Rated over current factor (i) Times rated current (ii) Time in seconds Knee point voltage Basic insulation level Winding temperature rise Secondary winding resistance (b) 37. 38. 39. (g) (h) (i) (j) 40. Neutral Grounding Equipment (i) Distribution Transformer and secondary Resistor (a) Type EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 231 (b) (c) (d) (e) (f) (g) (h) (i) (ii) Name of manufacturer Voltage ratio Continuous rating One minute rating Secondary load resistance (ohms) Current rating of resistor Duty cycle of resistor and cooling medium Overall dimensions and weight Neutral Isolation Switch (a) Type (b) Name of manufacturer (c) Voltage rating, frequency (d) Normal current (e) Short time rating (f) 1.2/50 Micro Second impulse level (g) 1 minute power frequency dry withstand voltage (h) Dimensions and weight 41. (A) Generator Terminal Equipment Lightning Arrestors (a) Type (b) Name of manufacturer (c) Standards to which it conforms (d) Name of units (e) Rated voltage kV (f) Nominal discharge current amps (g) Power frequency spark over voltage kV (rms) (h) Impulse spark over voltage (1.2/50 s wave) kV (peak) (i) Virtual steepness of front of wave for above kV Micro sec. (j) Maximum front of wave impulse spark over voltage kV (peak) (k) Maximum residual voltage for 10 KA discharge kV (peak) current (of 8/20 micro second wave) (l) Long duration current tests (i) Current peak amps (ii) Virtual duration Micro Sec. (m) Overall height (n) Total weight (o) Mounting details EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 232 (p) (B) Tests Protective capacitors (a) (b) (c) (d) (e) (f) (g) (h) Type Name of manufacturer Standard to which it conforms Voltage rating Capacitance Total weight Mounting details Tests Volts Micro-farads (C) Potential Transformer (a) Type (b) Name of manufacturer (c) Standard to which it conforms (d) Manufacturer's type design Volts (e) Rated primary voltage Volts (f) Rated secondary voltage (g) Rated burden (h) Accuracy class (i) Temperature rise at 1.1 times rated voltage with rated burden and frequency (j) One minute power frequency withstand test voltage on primary kV (rms) Heaviest package for shipment (a) (b) (c) Name Weight Dimensions (L x B x H) 42. 43. Largest package for shipment (a) (b) (c) Name Weight Dimensions (L x B x H) 44. Heaviest assembly to be lifted by power house crane (a) Name (b) Weight (c) Dimensions (L x B x H) EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 233 Schedule-3 GENERATOR TERMINAL EQUIPMENT SI. Items No. 1. INSULATORS/ SEAL BUSHING Manufacturer Type Rated Voltage Applicable standards One minute power frequency withstand voltage (kV) Dry Wet Impulse withstand voltage (1.2/50 micro second wave) of (peak) Power frequency puncture withstand voltage (kV) Minimum Creep age distance (mm) Cantilever strength (kg) for insulator only Upright Under hung Mechanical strength (kg) for seal off busing Compressor Tension Weight of each 2. CURRENT TRANSFORMERS (To be supplied for each core separately in tubular farm) CT Number/Location Qty. Application Name of manufacturer Type Winding of connection Rated burden of earth secondary winding per phase Insulation level Insulation class Impulse withstand voltage of primary winding (1.2/50 micro second wave) kV (peak) One minute power frequency dry withstand voltage (kV) Primary winding Secondary winding Characteristic enclosed (Yes/No) Accuracy class To be filled by tenderer EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 234 FUSES (Primary side & Secondary side) (To be supplied separately) Make Type Rated voltage (V) Rated current (A) Rupturing capacity (kA) Symmetrical Asymmetrical Qty. LIGHTNING ARRESTER Make Type Rated voltage Max. system voltage across arrestor Power frequency spark over voltage (kV) Impulse spark over Kv (peak) Max. front of wave impulse Spark over kV (P) Rated discharge current Max. discharge voltage in kV crest for discharge Current 8/20 micro sec. Wave Leakage current at rated voltage insulator (kV) One minute dry withstand voltage of arrestor external insulator (kV) Quantity per set 3. 4. 5. SURGE CAPACITOR Make Type Nominal voltage Max. voltage Insulation class Phase Frequency Capacitance Impulse withstand voltage (1.2/ 50 micro second wave) Qty. Applicable standard Residual voltage after 5 minute of disconnection EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 235 6. GROUNDING TRANSFORMER Make Type Applicable standards Rated primary voltage (v) Rated secondary voltage (V) Insulation class Rated output BIL of primary winding (kV) peak Max. Temperature rise over ambient OC No load losses Type of cooling Resistance Primary winding Secondary winding Short time rating for one minute Short time rating for 5 minute Load losses GROUNDING RESISTANCE Make Type Rate current Volume of resistance at 20OC Short time rated current for one minute Short time rated current for five minutes Maximum temperature rise over ambient OC 7. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 236 Schedule-4 POWER TRANSFORMERS (Separately for all Transformers) Sl. No. 1. 2. 3. 4. 5. Particulars Name of manufacturer Service whether indoor or outdoor Type (Core or shell) Reference standard Type of cooling Rating: Rated kVA Rated current, amps (rms) LV/HV Rated voltage, kV (LV/HV) Temperature rise above 45°C ambient for oil filled type: In oil by thermometer °C In winding by resistance °C b. Hot spot temperature in winding limited to °C Windings: No. of windings per phase Insulation class Connections: i. Vector group reference (in accordance with IS:2026) Terminal arrangement: HV LV d. Winding Insulation Category As specified As offered Outdoor ON 1750 3.3/33 6. 7. Uniform/ NonUniform Uniform/NonUniform 8. 9. 10. 11. Type of tap changer Taps: Capacity Steps and range Tapping provided on HV side? Losses: No load loss at rated voltage and frequency Load loss at rated current and at 75°C Impedances: Impedance at rated current, frequency and at 75°C(%) Reactance at rated current and frequency % Resistance at rated current, frequency at 75oC(%) Zero sequence impedance (%) Zero sequence capacitance of LV winding, micro farad/phase HV winding, micro farad/phase Yes/No EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 237 Efficiency at 75°C and 0.9 p.f. lag %: At 100% load At 75% load At 50% load Efficiency: Load and power factor at which maximum efficiency occurs, % full load Maximum efficiency (%) Regulation at full load and at 75°C: At unity power factor, % At 0.80 power factor lagging % No load current referred to HV and 50 Hz ....% rated current: At 90% load rated voltage At 100% load rated voltage At 110% load rated voltage At 125% load rated voltage Flux density: Approximate maximum flux density Web/m2 At 90% rated voltage, 50 Hz At 100% rated voltage, 50 Hz At 110% rated voltage, 50 Hz At 125% rated voltage, 50 Hz At 140% rated voltage, 50 Hz Following particulars shall be provided for the worst conditions of simultaneous occurrence of 110% rated voltage and 95% rated frequency Maximum flux density Temperature rise Period of allowable operation under the above worst condition Maximum current density, Amps/cm2: HV, winding LV, winding Clearance in mm: Maximum clearances in mm H.V. L.V. Between phase In air ii. In oil Between phase and ground In air In oil Withstand time without injury for Three phases dead short circuit with rated voltage maintained on the other side sec. Single phase short circuit with rated voltage maintained on the other side sec 12. 13. 14. 15. 16. 17. 18. 19. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 238 20. Tap-Changer: Tap-changer operable at standing height from ground Provided with: Tap position indicators? Operation counter? Padlocking provisions? All contacts silver plated? Yes/No Yes/No Yes/No Yes/No Yes/No 21. 22. 23. 24. 25. 26. 27. 28. 29. Details of tank: Material Maximum internal pressure the tank is capable of withstanding (kg/cm2) Explosion vent: Minimum pressure the diaphragm is set to rupture, (kg/cm2) Details of core material Insulation material Details of bushings: Make Type Voltage class, (kV) Creepage distance (mm) Free space required at top for bushing removal mm Minimum clearance in air Phase to phase (mm) Phase to earth (mm) Phase to neutral (mm) Impulse withstand voltage, kV (peak) Power frequency withstand voltage kV (rms) Insulation oil: Approx volume of oil (litre) Whether first fillings of oil with 10% excess included? Oil conforms to IS:335 Marshalling box: Weather proof, suitable for outdoor? Degree of protection Terminal blocks: Make Whether stud type terminals are offered 10% spare terminals furnished? Wiring: Cable type Voltage grade (volt) Conductor size Current circuits (mm2) Other circuits (mm2) H V L V HV Neut ral Yes/No Yes/No Yes/No EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 239 30. Contact rating Amps x Volt DC: Buchholz relay Oil temperature indicator Winding temperature indicator Magnetic oil level gauge Making inductive break 31. 32. 33. 34. 35. 36. 37. Gaskets: Material of gaskets No. of gaskets for one complete set (break up of gaskets shall be given) Valves: Type of valve No. of valve comprising one complete set (break up of valve shall be given) Tests: Routine test as per IS:2026 Tank pressure test i. Pressure, kg/cm2 ii. Duration, hour Tank vacuum test i. Vacuum, mm of Hg ii. Duration, hour Accessories Each transformers furnished with fittings and accessories Yes/No as per technical specification Approximate overall dimensions (mm): Length Breadth Crane lift for untanking core and coil assembly (including sling) Approximates weight (kg): Core and coil Tank and fittings Oil Total weight Shipping data: Weight of the heaviest package (kg) Dimensions of the largest package (LxBxH) mm EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 240 SCHEDULE-5 CONTROL, PROTECTION AND METERING A. CONTROL SYSTEM To be filled by tenderer 1 Control components and their parameters & makes 2 No. of inputs a. b. c. Digital Analogue Provision for spares 3 No. of outputs a. b. c. Digital Analogue Provision for spares 4 Start/stop operation a. b. Local Manual Local Automatic 5 Mimic diagram display a. b. Electrical System Hydraulic System 6 Mode of control a. b. c. f. Level control Speed control Flow control Sequence control EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 241 g. Step by step control 7 Temperature measurement a. b. Make of the scanner Holding capacity c. Time for scanning cycle f. g. Alarm setting range No. of setting levels 8 Generator, transformer & feeder control panels a. b. c. d. e. f. g. h. Ammeter Voltmeter MW meter MVAR meter Power factor meter Frequency meter DC ammeter for field current DC voltmeter for field voltage 9 Transducers a. b. c. Make Output Accuracy class B. ALARM & ANNUNCIATION SYSTEM 1 Make EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 242 2 Type 3 Wattage of window indicating lamp 4 Wattage of a set of windows 5 Interface with auto control system 6 Adjustable range of cut-off time, if unacknowledged 7 No. of active windows 8 No. of spare windows 9 Response time 10 UPS arrangement 11 Dimension of each windows 12 Dimensions of a set of window 13 Over all dimensions of annunciation panel C. ENERGY METERING SYSTEM 1 Make 2 Type 3 CT/PT connection direct or through transducers 5 Accuracy of meters 6 Accuracy of transducers, if any 7 Parameters measured 8 Maximum current rating for 1 second 9 Service voltage range and tolerance EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 243 10 Service frequency range and tolerance 11 Service temperature range 12 Power consumption a. b. Current circuit Voltage circuit 13 Service life 14 Protection against electromagnetic/radio interference D. PROTECTION SYSTEM 1 Make 2 Type of numerical relays their functions a. b. For Generators For transformers 3 Built in testing facility 4 Methodology to provide redundancy 5 Type of back-up protection in case of failure of numerical relays a. b. For generators For transformers 6 Parameter/command documentation 7 Maximum operating time 8 Sensitivity in %age of rated current 9 ANALOGUE INPUT VARIABLES a. Rated frequency b. Rated current EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 244 c. i. ii. iii. iv. Thermal rating of current circuits Continuous For 10 seconds For 1 second Dynamic 10 Rated Voltage 11 Thermal rating of voltage circuits (continuous) 12 Burden per phase a. b. At rated current At rated voltage 13 CURRENT TRANSFORMER REQUIREMENTS a. i. ii. iii. iv. b. i. ii. iii. iv. c. i. ii. Generator Protection VA burden Saturation factor Minimum knee point voltage Maximum excitation current Transformer Protection VA burden Saturation factor Minimum knee point voltage Maximum excitation current Feeder Protection VA burden Saturation factor iii. Accuracy class EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 245 Schedule-6 415 VOLT SWITCHGEAR Sl. No.
1.0 1.01 1.02 1.03 Particulars To be Filled in by Tenderer BUS BAR Type Rated Voltage No. of Phases 1.04 1.05 1.06 Frequency System Earthing Continuous current rating within the cubicle at 50oC ambient. 1.07 1.08 Short time current rating for (1) Sec. Temperature rise of bus bar joints under normal working conditions at rated current and at 50oC Ambient. 1.09 1.10 HV withstand test voltage for (1) minute. Minimum clearances. i) ii) Phase to phase Phase to earth 1.11 Insulation to Bus Bar. Size of bus bar. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 246 2.00 BUS SUPPORT INSULATOR: 2.01 Type & Service. 2.02 Material 2.03 Voltage Class 2.04 HV withstand test for one (1) minute. 3.00 CIRCUIT BREAKER: 3.01 System 3.02 Service 3.03 Type 3.04 Pole 3.05 3.06 Rated Service Voltage One (1) minute power frequency withstand voltage. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 247 Rated continuous current at 50oC and within the cubicle. 3.07 3.08 Short time current for one (1) Sec. 3.09 Rated breaking capacity. 3.10 Rated breaking current. a) b) Symmetrical Asymmetrical 3.11 Rated making capacity 3.12 Operating mechanism 3.13 Tempt. rise above 50oC 3.14 Operating duty EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 248 3.15 AUXILIARY VOLTAGE: i) ii) iii) iv) Closing Tripping Spring charging motor Space heater & lamp 240 VAC, 50 Hz 3.16 4.00 4.01 4.02 4.03 4.04 4.05 4.06 Mounting CURRENT TRANSFORMER: System Service Type Rated voltage Quantity Power frequency withstand voltage. 4.07 Mounting 4.08 4.09 5.00 5.01 Rated short time current for one (1) Sec. Current ratio and accuracy. MAGNETIC CONTACTOR (AC): Service EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 249 5.02 5.03 5.04 5.05 5.06 5.07 5.08 Poles Rated voltage Frequency Continuous current rating Power frequency test voltage Short time current rating Over load protection. 5.09 Control circuit voltage 5.10 Operation Indicator 5.11 AUXILIARY CONTACT: i) ii) iii) Normally closed Normally open Breaking capacity 5.12 CONTACTOR COIL RATING: i) ii) Pick-up Drop out 5.13 Temperature rise limit for magnetic coil. 5.14 Temperature rise limit for power circuit and other accessories. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 250 5.15 Duty class 5.16 Utilization category i. 1 hour (OC) ii. 2 hour (OC) iii. 4 hour (OC) Whether D.G. Set is auto start or not (Yes/No) load on Battery for Auto Start EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 251 Schedule-7 24 V BATTERY & CHARGER SI. No. A. 1. 2. Items BATTERIES Manufacturers name Capacity of battery at 10 Amp. hr. hr discharge rate Cells Cell designation according to IS:16511970 Method of connection between cells whether Cm bolted or soldered Distance between the Cm centre of cells when Kg erected Overall dimension of the cells Weight of cell complete with KOH Type and material of cover Cell insulators(whether provided) Container Material of container Thickness of container Whether container is moulded type Separator Type and material Thickness of separator in mm Plates Type of positive plate & dimensions in cms. Type of negative plate & dimensions in cms. Specified Value, To be filled by tenderer if any 12 V and AH 3. 4. 5. 6. 7. 8. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 252 9. Clearances Clearance between edges of plate and inner surface of container Clearance between bottom of negative plate and bottom of container Clearance between top of the plate and top of the container 10. Electrolyte Amount and specific gravity of electrolyte required for first filling Recommended specific gravity at the end of full charge Expected specified gravity at the end of discharge at 10 hr. rate Max. electrolyte temperature which cell can stand Continuously Short time 11. Voltage per cell at the end of charge at finishing rate 12. Capacity of battery in Amp. hrs. at 27°C At 10 hr. rate of discharge At 3 hr. rate of discharge At 1 hr. rate of discharge At 1 minute rate of discharge 13. Voltage of the battery at the end of discharge at: At 10 hr. rate of discharge At 3 hr. rate of discharge At 1 hr. rate of discharge at 1 minute rate of discharge Cm Cm Cm °C °C V AH AH AH AH AH V V V V EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 253 14. Recommended charging Amp. Amp. 15. 16. 17. 18. rates of the battery Starting rate of charge Finishing rate of charge Recommended trickle Amp. charging rate How long the battery can remain uncharged without any deterioration in active material before first charge is given Maximum discharge current of battery (with reference to time as per para 18 below) Time for which max. Hr. current as referred above can be continuously drawn such that voltage does not fall below 10% of rated voltage Nominal watt-hour % efficiency of the battery at 10 hr. rate Nominal amp. hr. % efficiency of battery at 10 hr. rate Type of wood used for battery stand Type of paints used 19. 20. 21. 22. 23. B. 1. Size and material of insulators FLOAT & BOOST CHARGER FOR BATTERY Rectifiers and filters Type and make Material and construction of rectifier Power rating Watts Peak inverse voltage V Current rating Type of filters and ripple factors EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 254 2. Automatic voltage regulator (A.V.R.) Type of AV.R. Regulating bank Auto-setting rate of A.V.R. When set to trickle charging When set to boost charging Manual control range Sensitivity of A.V.R. 3. 4. Transformer V.A. rating of transformer Transformation ratio and taps Type of connection Type of overload device Instruments Ammeter range Voltmeter range 5. 6. Miniature circuit breaker Rated normal current carrying capacity Rated short circuit current capacity No. of auxiliary contacts for alarm and annunciation Type of alarm and annunciation arrangement for over voltage under voltage and grounded bus conditions Alarm and annunciation scheme for HRC fuses D.C. Distribution Board D.C. Bus Bars Current rating of Amp. 7. C. 1. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 255 positive bus Current rating negative bus Type & class of Insulator 2. Amp. of Amp. 3. 4. 5. 6. Incoming Circuits No. of moulded case circuit breaker and their normal and short circuit current rating Outgoing circuits No. of MCB Normal rating Short circuit current rating Selector switches Current rating of the switches Current rating of auxiliary contacts Type and range of the ammeter Voltmeter range Alarm and annunciation scheme for HRC fuses EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 256 Schedule-8 MECHANICAL AUXILIARIES OF POWER HOUSE S.No 1 Description i) Dewatering System: No. of pumps Type & make of pumps Rating of each pumps (discharge, speed, head) Diameter of impellor Material of casing, shaft & impellor Type, rating, speed and insulation type of motors Type and make of level controllers ii) Drainage System No. of pumps Type & make of pumps Rating of each pumps (discharge, speed, head) Diameter of impellor Material of casing, shaft & impellor Type, rating, speed and insulation type of motors Type and make of level controllers Pressure rating of valves used 2 Cooling Water System: Source of cooling water (Intake / tail race ) No. of pumps Rating of each pumps ( discharge, speed, head) Diameter of impellor Material of casing & impellor Motor type, rating, speed & insulation Type of starter for motors Capacity & make of self cleaning strainers Material and size of strainer element Capacity & make of actuator for strainer Pressure rating of valves Materials of casing, valve seat & stem of valves Value (to be filled by bidder) EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 257 3 Compressed Air System No. and capacity of compressors Type & make of compressors Rating of motor, speed & type of insulation Working pressure Volume of high pressure air receiver Volume of low pressure air receiver Test pressure for air receivers Nos., type & make of pressure switches Type & make of pressure reducer Fore bay & tail race water level measuring device Type / basic principle of head sensors Output signals from sensors Make FIRE EXTINGUISHERS
1. a. CO2 TYPE WHEEL & HAND PORTABLE TYPES Name of Manufacturer (Word equivalent not acceptable) Standard to which it conforms Capacity Pressure of CO2 when charged Weight of CO2 Weight of Cylinders when full and empty Effective range max./min Discharge time Test pressure 4 5. b. c. d. e. f. g. h. i. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 258 Schedule-9 POWER AND CONTROL CABLES Sl.No. 1. Particulars General i. ii. Name and address of the manufacturer Name and address of contractor's representative from whom technical as well as commercial clarifications can be obtained. Location of factory Validity of tender To be Filled in by Tenderer 1100 V iii. iv. 2. Cable Type i. ii. iii. iv. Type and size of Cables Standard applicable Voltage rating Permissible variation in voltage, frequency and combined voltage and frequency. Suitable for earthed/ unearthed system v. 3. Conductor i. ii. iii. iv. v. Material copper/ aluminium/ grade Nominal cross-sectional area. Form of conductor-circular/ shaped No. of strands Nominal dia. of each strand 4. Conductor Screen i. ii. Material Minimum thickness EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 259 iii. 5. Whether extruded Insulation i. ii. iii. Material (Mention type) Minimum average thickness Tolerance on the smallest of the measured values of thickness of insulation. Dia of core over insulation. Specific insulation resistance at 27oC Colour scheme of identification of cores. Average dielectric strength Suitability with regard to moisture zone, acid, oil and alkaline cup-roundings. iv. v. vi. vii. viii. 6. Insulation Screen(for 1100 V Cables) i. Whether extruded semi-conducting screen is supplied Material of the semi-conducting screen Thickness of the semi-conducting screen Whether copper tape screening is applied Thickness of the copper tape. For braided screen, material and dia. of screen wire and minimum percentage coverage. ii. iii. iv. v. vi. 7. Inner Sheath(for 1100 V Cables) i. ii. iii. iv. Material (mention type) Whether extruded Minimum thickness of inner sheath Calculated diameter over stranded cores of the cables. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 260 v. Whether the inner sheath and the filling material are suitable for the operating temperature of the cable. 8. Armour (for 1100 V Cables) i. ii. Type and material Nominal dimensions of steel strip or nominal dia. of round armour wire. 9. Outer Sheath/ Overall Covering i. ii. iii. iv. Material (mention type, if any) Whether extruded Minimum average thickness Tolerance on the smallest of the measured values of thickness of outer sheath. Calculated dia. under the sheath. Whether anti-termite treatment has been given in the outer sheath. v. vi. 10. Electrical Properties i. ii. Conductor resistance at 20oC per km. Maximum permissible conductor temp. a. b. iii. iv. v. vi. Under continuous full load Under transient conditions Loss tangent at normal frequency Reactance at 50 C/s per km. Capacitance at 50 C/s per km. Current rating. a. b. c. d. In air (continuous) In duct (continuous) Reference ambient temperature for the above Short circuit current rating for 1 sec. duration EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 261 vii. Derating factors. a. b. For ambient temperature of 50oC For grouping of 4 to 6 cables in racks and trays and in 4 to 6 tiers for different spacings and also touching each other. 11. Mechanical Data (For each of the cable sizes of different voltage grade) i. ii. iii. iv. v. vi. vii. viii. ix. x. Overall dia. of the cable Dia. of the cable under the sheath Diameter under armouring Diameter over the stranded cores Weight of cable per kg. Drum length Tolerance on drum length Total weight of the drum Dimensions of the drum Recommended minimum installation radius Maximum safe pulling force. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 262 325 Schedule-10 11 kV ISOLATORS Sl. No.
1. 2. 3. 4. 5. 6. 7. Particulars
Name of manufacturer Manufacturer's type designation Standards applicable Type As specified As offered 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Rated voltage (kV) Rated frequency Current rating Continuous (at design temp.) (A) Current rating at site condition (A) Dynamic through fault (A) Second rating (kA) Making current (A) Design ambient temperature (°C) Maximum temperature of current carrying parts with carrying rated current at specified ambient temperature, (°C) Maximum temperature of current carrying parts with carrying short circuit current for 3 seconds at temperature, (°C) One minute power frequency dry & wet withstand voltage 1.2/50 micro-second impulse withstand voltage Switch contact particulars Type of main isolating contacts Area & material of contacts Thickness of silver facing Blade material Number of auxiliary contacts on disconnecting switch Rating of auxiliary contacts Continuous (A) Breaking current (A) Type of interlock between earthing blade and isolator Particulars of isolator operating mechanism Duty Outdoor No. of operations the disconnecting switch can withstand without deterioration of contacts Clearance between phases, between live parts & earth mm between fixed contacts and blade in open position mm Double Break/ Horizontal 11 kV 50 Hz 21. 22. 23. a. Capacitive current that can safely be interrupted by the switch (A) b. Magnetizing current that can safely be interrupted by the switch (A). Type and make of insulators No. of insulators per stack EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 263 One minute dry & wet withstand voltage per stack, kV (rms) Impulse voltage of insulator stack at 1.2/50 micro seconds positive full wave kV (peak) Creepage distance Total (mm) Protected (mm) Total weight (kg) Dimensions of switch L x B x H (mm x mm x mm) Shipping dimension of largest package Provision of earthing switch One 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. side/both side GA drg. of disconnect switch along-with support Submitted/not structure submitte d Supporting structures Material Total weight/isolator (kg) Thickness of galvanizing micron Total height of structure in mm Power and control power supply voltage Confirm that all particulars given in technical Yes/No particulars are acceptable to tenderer If answer is 'NO' in above then indicate point wise deviation EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 264 Schedule-11 11 kV VACCUM CIRCUIT BREAKERS Sl. No. 1. 2. 3. 4. 5. 6. 7. 8. Particulars As specified Name of manufacturer Manufacturer's type designation Type Vacuum Standards followed Suitable for outdoor duty Yes/No Rated voltage (kV) No. of poles of circuit breaker Continuous current rating (A) i. Under normal conditions (amps) (at °C) ii. Under site conditions (Amps) Short time current rating i. 1 second kA (rms) ii. 3 seconds kA (rms) Maximum temperature rise over ambient of different parts °C. Breaking capacity i. Symmetrical kA rms ii. Asymmetrical Ka Making capacity kA (peak) Kilometric fault level (MVA) Maximum interrupting capacity under phase opposition condition MVA Maximum line charging current braking capacity without over exceeding 2.5 to 3 times the rated phase to neutral voltage Maximum line charging current breaking capacity and corresponding over voltage recorded in test Total break time (measured from instant of trip coil energization) Arcing time (ms) Make time (ms) Dry and wet 1-minute power frequency withstand test voltage for complete circuit breaker i. between phase to phase kV (rms) ii. between phase to ground kV (rms) 1.2/50 micro-second full wave impulse withstand voltage for complete circuit breaker i. between phase to phase kV (peak) ii. between phase to ground kV (peak) Dry 1-minute power frequency withstand voltage for insulator Kv (rms) 1.2/50 micro-second full wave impulse withstand voltage for the insulators, kV (peak) EE (E-M) 0/0 the CE, DHPD, Itanagar As offered 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 265 24. Creepage distance to ground, mm i. between phase ii. live parts to earth iii. live parts to ground level Number of break per phase Total length of break per phase, mm Rate of contact travel, mm/sec Type of main contacts Type of auxiliary contacts Material of auxiliary contacts Main contact silver plated or not, if yes, thickness of silver plating Number of trip coils in each breaker Number of auxiliary contact provided Those closed when breaker is closed. Those open when breaker is closed. Those adjustable w.r.t. the position of main contact. Rating and braking capacity of each contact. Type of operating mechanism Opening Closing Emergency tripping Control cum circuit volt. For close/trip coil (volt) Power required for closing/trip coil (watt) Duty cycle Anti-pumping device kg Weight of 3 phase CB complete with operating mechanism, bushing, framework etc. Overall dimensions (mm x mm x mm) Confirm that all details given in technical Yes/No particulars are acceptable to tenderer If answer is No in 41, indicate point wise deviation Manufacture's catalogue enclosed Yes/No 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 266 Sechedule-12 11 kV LIGHTNING ARRESTORS Sl. Particulars As specified As offered 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Name of manufacture Manufacturer's type designation Standards applicable Arrestor class and type Rated arrestor voltage kV (rms) 11 Nominal system voltage kV (rms) Rated frequency Hz Nominal discharge current (8/20 micro sec wave) kA (peak) Max. 100% 12/50 micro sec. spark over voltage kV (peak) Max. wave front spark over voltage kV (peak) & front steepness kV/sec. Max. residual voltage at rated nominal discharge current kV (peak) Impulse current withstand High current short duration (4/10 micro sec. wave) kA (peak) Low current long duration Amps. (peak) Wet and dry power frequency withstand voltage for the housing kV (rms) Impulse withstand strength of arrester housing with 1.2/50 micro-sec wave kV (peak) Total creepage distance of the arrester housing mm Protected creepage distance of the arrestor housing mm Total weight of material included for supporting structures Thickness of galvanizing micron Total height of structures in mm Suitable for outdoor duty. Yes/No Confirm that all particulars given in Tech. Particulars in Yes/No GTP sheet are acceptable If answer is 'NO' in 19 indicate point-wise deviation EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 267 Schedule-13 11 kV POTENTIAL TRANSFORMERS S. No. 1. 2. 3. 4. 5. Particulars As specified As offered 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Manufacturer's name, type & designation Type Rated voltage 11 Rated primary voltage (kV) Rated secondary voltage (kV) Winding I Winding II Rated burden (VA) Winding I Winding II Accuracy class Winding I Winding II Maximum ratio error with rated burden and 5% normal primary voltage Maximum ratio angle error with rated burden and 5% normal primary voltage Variation in ratio and phase angle error for variation in Voltage by 1°C Frequency by 1Hz Temperature rise at 1.1 times rated voltage with rated burden Rated voltage factor and time 1.2/50 micro second impulse wave withstand test voltage (kV peak) One minute power frequency withstand test (dry) voltage kV rms One minute power frequency withstand test (wet) voltage kV rms One minute power frequency withstand voltage on secondaries (kV rms) Minimum creepage distance (mm) Moderately polluted atmosphere Heavily polluted atmosphere i. Total ii. Protected Whether corona shield provided or not Total weight (kg) Overall dimensions Mounting details 18. 19. 20. 21. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 268 Schedule-14 11 kV CURRENT TRANSFORMERS Sl. No. 1. 2. 3. 4. 5. 6. 7. 8. Particulars As specified As offered 9. 10. 11. 12. 13. 14. 15. Name of manufacturer Manufacturer's types designation Type Standards followed Rated voltage (kV) Rated primary current Rated secondary current Number of cores: Rated Class of Accuracy Core I output accuracy limit Core II factor Core III Short time current rating: i. 1 seconds kA (rms) ii. 3 seconds kA (rms) Dynamic current kA (peak) Temperature rise over max. ambient °C: i. Oil at top of housing (°C) ii. Winding (°C) Class of insulation Current voltage and phase errors at rated burden and frequency Confirm that all particulars given in Yes/No technical data sheet are acceptable If answer is 'NO' in 14 indicate point wise deviation EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 269 Schedule-15 11 kV BUS BAR, CONDUCTOR AND INSULATORS BUS BAR Sl. No. 1. 2. 3. 4. 5. 6. 7. 8. Particulars Make Type Size Nominal current rating at maximum site ambient Short time rating for 3 sec (in kA) Rated dynamic stability current kA (peak) Weight per metres in kg Clearance i. Phase to phase (mm) ii. Phase to earth As specified As offered ACSR CONDUCTOR Sl. 1. 2. 3. 4. Particulars Make Type Size Nominal current rating at maximum site ambient temperature Shirt time rating for 3 sec. (in kA) Rated dynamic stability current kA (peak) Weight per mtr in kg Clearance Phase to phase Phase to earth As specified As offered 5. 6. 7. 8. EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 270 INSULATORS Sl. Particulars As specified As offered 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Make Type Material of insulator Colour Insulation level: Dry (PF) Wet (PF) Impulse Creepage distance Total (mm) Protected (mm) Power freq. Puncture test Visible discharge test volt For support insulators minimum height of base from ground Number of disc in string insulators Rated voltage for disc in kV Deviation if any from the data sheet EE (E-M) 0/0 the CE, DHPD, Itanagar Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. 271 Schedule-16 CONTROL AND RELAY PANELS Sl. No. 1. 2. 3. 4. Particulars Make Type Reference standard Construction Degree of protection Sheet metal thickness mm Floor channel sills, vibration damping pads and kick plate furnished? Equipment mounting All relays, meters and switches are flush mounted? Relays furnished in draw out cases with built-in test facilities? Name plate Material Thickness Size for :Equipment Panels Internal illumination Volt Watt Door switch controlled Space heater Volt Watt Thermostat controlled? Plug socket Type Rating Panel illumination, space heater and plug socket circuits prov