Self-regulating brushless synchronous alternators series DIG Self-regulating
brushless
synchronous alternators
series DIG 3.
4.
5.
6.
7.
8.
2.
1.
Contents:
Applications
Ratings
Definition of the alternator
3.1 Basic technical data
3.2 Enclosure
3.3 Cooling method
3.4 Design
Mechanical features
4.1 Construction
4.2 Stator
4.3 Rotor
4.4 Bearing plates
4.5 Bearings
4.6 Terminal boxes
Derating factors
5.1 Standard conditions
5.2 Relation between
power and coolant temperature
5.3 Relation between
power and installation altitude
5.4 Relation between
power and cos phi:
5.5 Marine classification
5.6 Higher types of enclosure
5.6.1 Enclosure IP 43
5.6.2 Enclosure IPR 44 or IPR 54
5.6.3 Enclosure IP 44 or IP 54
Electrical functions
6.1 Operating principle
6.1.1 Alternator
6.1.2 COSIMAT N+ voltage regulator
6.2 Self-excitation, de-excitation
6.2.1 Self-excitation
6.2.2 De-excitation
6.3 Voltage and frequency
6.3.1 Voltage adjustment range
6.3.2 Steady-state voltage performance
6.3.3 Transient voltage behaviour
6.3.4 Voltage waveform
6.4 Currents
6.4.1 Asymmetrical loads
6.4.2 Overload
6.4.3 Short-circuit behaviour
6.5 Harmonic load
6.6 Emergency operation
6.6.1 Emergency manual operation
6.6.2 Stand-by control
6.7 Star point connection, neutral current
Parallel operation
7.1 General
7.2 Conditions for parallel operation
7.3 Start-up synchronisation for
isolated parallel operation
7.4 Stationary operation / load distribution
7.4.1 Voltage droop
7.4.2 Power factor regulation
7.5 Parallel mains operation
7.6.Oscillations
Features of the medium
voltage winding
8.1 General
8.2 Design and manufacture
Factory tests
9.1 Standard tests
9.2 Special tests (at extra charge)
9. 2 AVK SEG Competence in
power generation and
system protection
AVK SEG is a competent, reliable
partner in power generation and
protection technology.
We offer the quality and flexibility
of a medium-sized, independent
group of companies, which
perfectly combine the experience
gained through many years with a
policy of innovative development.
Active on a global basis, we
supply not only a comprehensive
range of products, but also
customer-specific engineering.
Our product programme extends
from individual protection devices
through to complete electrical
equipment for power plants.
AvK Deutschland, the German
company with its plant in Ingolstadt
and a branch in Dreieich near
Frankfurt, supplies synchronous
machines and converters, whilst
SEG Kempen specialises in pro-
tection and functional equipment.
Together we set new standards
and exert an active influence on
international power-generation
technology. No matter what scope
of services you are looking for,
we can deliver it an individual
device, an alternator or a com-
plete turnkey system. Our extremely
efficient customer service and ad-
visory sales offices located across
the globe will make every effort
to comply with your requirements.
We not only build from a base
of technological continuity and
quality, but also place particular
emphasis on customer satisfaction.
The certification of the AvK and
SEG plants in accordance with
German industrial standard
DIN EN ISO 9001 underlines the
importance we attach to quality.
3 AvK synchronous
alternators from
Series DIG 110 191
are used in the
following areas of
application:
q
Continuous supply to
stationary and maritime
plants
q
Parallel peak-load
operation
q
Emergency supply to
important consumers such
as power stations,
industrial plants, hospitals
and tower blocks
q
Combined heat and
power stations (CHP)
q
Electrical supply systems
on board ship
q
Diesel-electric drives for
ships
q
Special-purpose supplies
to consumers with high
mains-supply quality
requirements
q
No-break power systems
(UPS)
q
Frequency conversions,
e.g. 50:60 Hz
They can be used with all
types of drive system: diesel
engines, gas engines, gas,
hydraulic or steam turbines
and as shaft generators on
board ship.
4
Applications
1.
Series DIG Self-regulating
brushless synchronous alternators
Power station
Combined heat and power station
Diesel-driven generators on board ship
Shaft generator on board ship
Hydro-electric power station
Typical applications
Deutscher
Akkreditierungs
Rat
TGA-ZQ-004/92-00
C E R T
I F I CA
T E
D
ET
N
ORSKE
V
ERITAS
Z
ERTIFIZIERUNG
UND
U
MWELTGUT
ACHTER
G
MB
H
certifies that the company
AvK Deutschland GmbH & Co. KG
in
D 85051 Ingolstadt
has established a
quality system
in conformity with
DIN EN ISO 9001, 8.94
This Certificate is valid for:
Design, manufacturing and commissioning of
synchronous generators up to 30MV
A,
asynchron motors and fr
equency converters
This Certificate is valid until:
2001-01-31
Certificate-Registration-No.:
ESN06940AQ98
Essen, 1998-01-09
Essen, 1998-01-09
M. Fröhlich
K. Nordhause
Manager
Lead-Auditor
This Certificate is only valid in connection with the original Certificate ESN06940AQ98.
Stand 01/98 D / &74924 5
Ratings in accordance with VDE 0530, enclosure IP 23, criteria as in Item 3.1
2.
DIG 110
4
1500
1800
750 1080
900 1300
750 1080
750 1080 6
1000
1200
580
750
720
940
560
720
DIG 120
4
1500
1800
1300 2050 1630 2600 1300 1750 1150 1650 6
1000
1200
900 1520 1130 1900
880 1200
1300 8
750
900
750 1130
940 1410 10
600
720
600
960
750 1200 DIG 130
4
1500
1800
2250 3850 2850 4000 1900 3000 1800 2800 2050 3250
6
1000
1200
1730 2650 2000 3300 1450 2250 1350 2100 1600 2550
8
750
900
1180 1950 1470 2450 1140 1650 1300 1600 1700 1900
10
600
720
990 1550 1240 1700
800 1300 1060 1200
1400
12
500
600
790 1180
990 1470
650 1000
1080 DIG 140
4
1500
1800
4000 5600 4850 7000 3000 4600 3000 4400 3400 5000
6
1000
1200
3050 4050 3800 5050 2400 3500 2200 3250 2700 4000
8
750
900
2100 3080 2600 3850 1800 2650 1800 2600 2050 3050
10
600
720
1850 2200 2000 2750 1400 2100 1250 2100 1550 2150
12
500
600
1410 1880 1760 2300 1150 1500 1150 1550 1480 1650
DIG 150
4
1500
1800
5800 7400 7200 8100 5100 6850 4800 6050 5400 6000
6
1000
1200
4600 5200 5750 6500 3550 5500 3450 4950 4150 6100
8
750
900
3300 4500 4200 5000 2800 4800 2850 4500 3300 4600
10
600
720
2500 2800 3200 3550 2200 3300 2150 3000 2500 3600
12
500
600
2000 2650 2500 3300 1700 2600 1750 2500 1900 2750
DIG 156
4
1500
1800
7700 9600 9700 11100 7300 9600 6600 8800 6700 8800
6
1000
1200
5600 7850 7050 9900 5600 7800 5300 7500 6600 8800
8
750
900
4700 6400 5400 8050 4700 6800 4400 6700 5200 7000
10
600
720
3000 4100 3700 5100 3400 5300 3200 5450 4100 5500
12
500
600
3250 4750 3400 6000 2800 4650 2500 4300 2950 4600
DIG 163
4
1500
1800
10100 12600 9650 14300 10500 14100 6
1000
1200
8200 10500 10200 13300 7800 10500 7750 10300 9500 12000
8
750
900
7000 7500 7950 8400 7050 8550 6850 8400 7950 9200
10
600
720
5400 6700 6800 8200 5650 7400 5650 7100 6200 8300
12
500
600
5300 6150 6400 7300 4750 6050 4350 5850 5000 6200
DIG 171
6
1000
1200
10400 13000 12500 16000 10400 2100 10400 12100 12500 14600
8
750
900
7800 11150 8550 14400 9200 15800 8600 13350 9800 12800
10
600
720
7200 12100 9000 13000 7400 11700 6900 11400 8300 11600
12
500
600
5800 10200 7400 12800 6050 10600 5800 10200 6500 9800
14
429
514
4600 9500 5600 10150 4300 9300 4200 8500 5100 8700
DIG 181
10
600
720
12200 18700 13800 18700 13600 21100
12
500
600
11200 15450 11200 15450 11700 15600
14
429
514
8700 13500 7950 13000 9700 13000
16
375
450 7600 12000 8700 12200
18
333
400 6600 11400 7850 11800
DIG 191
10
600
720 19400 25700 22000 27800
12
500
600 16000 22700 16300 23300
14
429
514 14800 19700 15200 21200
16
375
450 12900 16900 13900 18300
18
333
400 11100 15400 13100 16400
Voltage
3.3 kV
4.16 kV
66.6 kV
1011 kV
13.8 kV
Frequency
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
50 Hz
60 Hz
Frame size No. of poles
Speed
rpm
Speed
rpm
Rating (kVA)
Rating (kVA)
Rating (kVA)
Rating (kVA)
Rating (kVA) Specification to
German Industrial
Standards DIN EN
60034, VDE 0530,
IEC 34
3.2
Enclosure
IEC 34-5
DIN VDE 0530 - 5
Standard IP 23.
Higher types of enclosure
such as IP 43, IPR 44, IPR
54, IP 44 and IP 54 can
be supplied on request; see