5-34
745 Transformer Management Relay
GE Power Management
5.4 S2 SYSTEM SETUP
5 SETPOINTS
5
LOAD LOSS AT RATED
LOAD: 1250 kW
Range: 0 to 20000 in steps of 1
(Auto-ranging; see Table 5–3: LOW VOLTAGE WINDING RATING)
Enter the load loss at rated load. This value is used for calculation of
harmonic derating factor, and in the Insulating Aging function.
LOW VOLTAGE WINDING
RATING: Above 5 kV
Range: Above 5 kV / 1 kV to 5 kV / Below 1 kV
Enter the low voltage winding rating. This selection affects the setpoint
ranges of
WINDING (1,2,3) NOM Ø-Ø VOLTAGE
,
WINDING (1,2,3) RATED LOAD
,
MINIMUM TAP POSITION VOLTAGE
and
VOLTAGE INCREMENT PER TAP
shown in
Table 5–3: LOW VOLTAGE WINDING RATING below.
RATED WINDING TEMP
RISE: 65ºC (oil)
Range: 65ºC (oil) / 55ºC (oil) / 150ºC (dry) / 115ºC (dry) / 80ºC (dry)
This setting determines the type of insulation, for use in the computation of
Insulation Aging.
NO LOAD LOSS:
125.0 kW
Range: 0.1 to 2000.0 in steps of 0.1
(Auto-ranging; see Table 5–3: LOW VOLTAGE WINDING RATING)
From the transformer data. It is required for Insulation Aging calculations.
TYPE OF COOLING:
OA
Range: FA / OA / Directed FOA / FOW / Non-Directed FOA/FOW
From Transformer data, required for Insulation Aging calculations.
RATED TOP OIL RISE
OVER AMBIENT: 10ºC
Range: 1 to 200 (steps of 1)
Required for Insulation Aging calculations
XFMR THRML CAPACITY:
1.00 kwh/ºC
Range: 0.00 to 200.00 (steps of 0.01)
Required for Insulation Aging calculations. Obtain from transformer
manufacturer
WINDING TIME CONST:
2.00 min.
Range: 0.25 to 15.00 (steps of 0.01)
Required for Insulation Aging calculations
SET ACCUMULATED LOSS
OF LIFE: 0 x 10h
Range: 0 to 20000 (steps of 1)
Required for Insulation Aging calculations. Set equal to the estimated
accumulated loss of life.
Table 5–3: LOW VOLTAGE WINDING RATING
DESCRIPTION
LOW VOLTAGE WINDING RATING
ABOVE 5 kV
1 kV to 5 kV
BELOW 1 kV
WINDING
x NOM
φ
-
φ
VOLTAGE:
0.1 to 2000.0
in steps of 0.1 kV
0.01 to 200.00
in steps of 0.01 kV
0.001 to 20.000
in steps of 0.001 kV
WINDING
x RATED
LOAD
0.1 to 2000.0
in steps of 0.1 MVA
0.01 to 200.00
in steps of 0.01 MVA
0.001 to 20.000
in steps of 0.001 MVA
MINIMUM TAP POSITION
VOLTAGE
0.1 to 2000.0
in steps of 0.1 kV
0.01 to 200.00
in steps of 0.01 kV
0.001 to 20.000
in steps of 0.001 kV
VOLTAGE INCREMENT
PER TAP
0.01 to 20.00
in steps of 0.01 kV
0.001 to 2.000
in steps of 0.001 kV
0.0001 to 0.2000
in steps of 0.0001 kV
Load Loss at Rated Load
1 to 20000
in steps of 0.1 KW
0.1 to 2000.0
in steps of 0.01 KW
0.01 to 200.00
in steps of 0.001 KW
No load Loss
0.1 to 2000.0
in steps of 1 KW
0.01 to 200.00
in steps of 0.1 KW
0.001 to 20.000
in steps of 0.01 KW
Содержание 745 TRANSFORMER MANAGEMENT RELAY
Страница 30: ...2 8 745 Transformer Management Relay GE Power Management 2 3 SECURITY 2 GETTING STARTED 2 ...
Страница 150: ...5 100 745 Transformer Management Relay GE Power Management 5 10 INVERSE VOLTS PER HERTZ CURVES 5 SETPOINTS 5 ...
Страница 210: ...7 36 745 Transformer Management Relay GE Power Management 7 2 BLOCK DIAGRAMS 7 SCHEME LOGIC 7 ...
Страница 322: ...9 12 745 Transformer Management Relay GE Power Management 9 3 USING 745PC 9 745 PC SOFTWARE 9 ...
Страница 392: ...11 24 745 Transformer Management Relay GE Power Management 11 1 COMMISSIONING SUMMARY 11 SETPOINT TABLES 11 ...
Страница 396: ...A 4 745 Transformer Management Relay GE Power Management A 1 FIGURES AND TABLES APPENDIXA A ...
Страница 398: ...B 2 745 Transformer Management Relay GE Power Management B 1 EU DECLARATION OF CONFORMITY APPENDIXB B ...
Страница 400: ...C 2 745 Transformer Management Relay GE Power Management C 1 WARRANTY INFORMATION APPENDIXC C ...
Страница 406: ...vi 745 Transformer Management Relay GE Power Management ...
Страница 407: ...GE Power Management 745 Transformer Management Relay NOTES ...