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SMALL GENERATOR INTERCONNECTION APPLICATION
SMALL GENERATOR INTERCONNECTION APPLICATION

This Interconnection Application is made between Public Service Company of Colorado, d/b/a Xcel
Energy, and Customer, dated ___________________.

To be completed by Customer and submitted with applicable fee:
Application is made for permission to interconnect to the Xcel Energy Electric Distribution System
as follows:

OWNER/APPLICANT INFORMATION
Company:
Representative:
Phone Number:
FAX Number:
Title: Email
Address:
Mailing Address:

PROPOSED LOCATION OF GENERATING PLANT AND PROPOSED INTERCONNECTION
Address:

PROJECT DESIGN / ENGINEERING
Company:
Representative: Phone:
FAX
Number:
Mailing Address:
Email Address:

ELECTRICAL CONTRACTOR
Company:
Representative: Phone:
FAX
Number:
Mailing Address
Email Address:

ESTIMATED LOAD INFORMATION
The following information will be used to help properly design the Xcel-Customer interconnection. This
information is not intended as a commitment or contract for billing purposes.

Minimum anticipated load (generation not operating):
kVA:
Time:
Maximum anticipated load (generation not operating):
kVA:
Time:
Existing Electric Service:

Capacity:
Amperes Voltage: Volts
Service Character:
Single Phase
Three Phase

Estimated In-Service Date: ____________________

Site Control Documentation: Documentation of site control must be submitted with the
interconnection request as required by Code of Colorado Regulations, CCR 4 723-3, Rule 3665.

Site Control:
Ownership of Site Option to Purchase Site Other Specify _______________
Page 1 of 4



Energy Producing Equipment/Inverter Summary:

Manufacturer:










Model No.:


Version
No.:


Synchronous
Induction
Inverter
Other




Rating:
_______________kW
Rating:
kVA
Generator Connection:
Delta
Wye Ungrounded
Wye Grounded
Generator Voltage:

Volts
System Type Tested (Total System):

Yes

No; attach product literature
Equipment Type Tested:
Yes (i.e. Inverter, Protection System) No; attach product literature
(Type Tested per IEEE 1547.1 or IEEE 929; i.e., Pre-certified)

(Complete all applicable items, Copy this page as required for additional generators)

SYNCHRONOUS GENERATOR DATA
Unit Designation:
Total number of units with listed specifications on site:
Manufacturer:
Type:
Date of manufacture:
Serial Number (each):
Phases: 1 or 3
Speed: RPM:
Frequency: Hz
Rated Output (each unit) Kilowatt:


kW Kilovolt-Ampere: kVA
Rated Power Factor: %
Rated Voltage: V
Rated Current: A
Field Voltage: V
Field Current: A
Motoring Power: kW
Synchronous Reactance (X
d
):
% on
kVA base
Transient Reactance (X'
d
):
% on
kVA base
Subtransient Reactance (X"
d
):
% on
kVA base
Negative Sequence Reactance (X
s
):
% on
kVA base
Zero Sequence Reactance (X
o
):
% on
kVA base
Neutral Grounding Resistor (if applicable): Yes No Resistance: Ohms

I

2
t or K (heating time constant):
Exciter data:
Governor data:

Additional Information:


INDUCTION GENERATOR DATA

Rotor Resistance (R
r
):


Ohms
Rotor Reactance (X
r
):


Ohms
Magnetizing Reactance (X
m
):
Ohms
Stator Resistance (R
s
):


Ohms
Stator Reactance (X
s
):


Ohms
Short Circuit Reactance (X
d
"):

Ohms
Design Letter:
Frame Size:
Exciting Current:
Temp Rise (deg C�):
Rated Output: kW
Reactive Power Required:
kVAr (no Load)
kVAr (full load)
For a wound-rotor machine, describe external equipment to be connected (resistor, rheostat, power converter, etc.)
to rotor circuit, and circuit configuration. Describe ability, if any, to adjust generator reactive power output.


Page 2 of 4


PRIME MOVER
(Complete all applicable items)
Unit Designation:
Type:

Manufacturer:
Serial Number:
Date of Manufacture:
H.P. Rated:
H.P. Max:

Inertia
Constant: lb.-ft.
2

Energy Source (hydro, steam, wind, etc.):
Additional Information:


Type of Interconnected operation
Long term Parallel operation: Yes No
Closed momentary transition: Yes No Transition Closed Time: seconds
Other (describe):



TRANSFORMER
(If applicable)
Manufacturer: kVA:
Date of Manufacture:
Serial Number:
High Voltage: V
Connection:

delta

wye

Neutral solidly grounded? Yes No
Low Voltage: V
Connection:

delta

wye

Neutral solidly grounded? Yes No

Transformer Impedance (Z):

% on
kVA base
Transformer Resistance (R):
% on
kVA base
Transformer Reactance (X):
% on
kVA base
Neutral Grounding Resistor (if applicable) Yes No Resistance: Ohms

Additional Information:



INVERTER DATA
(If applicable)

UL Pre-certified per UL 1741 and IEEE 929? Yes No Certification Number:
Manufacturer: Model:
Rated Power Factor (%): Rated Voltage (Volts): V Rated Current (Amperes): A
Inverter Type (ferroresonant, step, pulse-width modulation, etc.):
Type of Commutation: forced line
Minimum Short Circuit Ratio required:
Minimum voltage for successful commutation:
Current Harmonic Distortion:

Maximum Individual Harmonic (%):

Maximum
Total
Harmonic
Distortion
(%):
Voltage Harmonic Distortion:
Maximum Individual Harmonic (%):
Maximum
Total
Harmonic
Distortion
(%):
Describe capability, if any, to adjust reactive output to provide voltage regulation:

Additional Information:

NOTE: Attach all available calculations, test reports, and oscillographic prints showing inverter output voltage and
current waveforms.
Page 3 of 4


POWER CIRCUIT BREAKER
(if applicable)

Manufacturer: Model:
Rated Voltage: kV
Rated Ampacity (Amperes): A
Interrupting Rating: A
BIL Rating: kV
Interrupting Medium (vacuum, oil, gas, etc.):
Insulating Medium (vacuum, oil, gas, etc.):
Control Voltage (Closing): (Volts) AC DC
Control Voltage (Tripping): (Volts) AC DC Battery Charged Capacitor
Close Energy: Spring Motor Hydraulic Pneumatic Other
Trip Energy: Spring Motor Hydraulic Pneumatic Other
Bushing Current Transformers (Max. ratio):
Relay Accuracy Class:
Multi Ratio? No Yes: (Available taps):
Construction Schedule:
Start date:
Completion date:



MISCELLANEOUS
(Use this area and any additional sheets for applicable notes and comments)



ADDITIONAL REQUIREMENTS:
In addition to the items listed on this form, please attach:


1) Detailed One Line Diagram:
Yes
2) Installation Test Plan:

Yes
3) Site plan:


Yes
4) Major equipment (generators, transformers, inverters, circuit breakers, protective relays, isolation
disconnect, etc.)

specifications:
Yes
5) Relaying detail:

Yes
Date:

6) Metering telemetry:

Yes
Date:

7) Test reports attached:

Yes
Date:

8) Other applicable drawings or documents necessary for the proper design of the interconnection:
Describe











Date submitted:
_____________

ACCEPTANCE

The Customer agrees to provide Xcel Energy with any additional information required to complete the
interconnection.


.

Customer Signature Date:

SEND APPLICATION AND ATTACHMENTS TO:


Information below to be completed by Xcel Energy
Xcel Rep.:
Phone:
Name of Project:
� 2006 Xcel Energy | Xcel Energy is a registered trademark of Xcel Energy Inc. |
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