Trêng ®¹i häc b¸ch khoa hµ néi
B¸o c¸o thùc tËp tèt
nghiÖp
A-giíi thiÖu chung.
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II - Liên hệ của trạm với các công trình điện lực khác của hệ
thống .
-7.4%&-E47
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1'>!%>?A%&-1
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1'!>?A%&-!!W-/0E,
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III - Các thiết bị chính của trạm.
1- Sơ đồ nối điện chính của trạm.
2
Trêng ®¹i häc b¸ch khoa hµ néi
B¸o c¸o thùc tËp tèt
nghiÖp
2- M¸y biÕn ¸p lùc:
2.1 - M¸y biÕn ¸p tù ngÉu 500kV(AT2):
W-VR!+
*043JAMH500.
e@3N-+/JSđm = 150000/150000/50000 kVA.
14+/J 500/√3 ± 8 x 1,25/225/√3 /35 ,
VN3J Y
3AP1-
245
S1-
145F
1
U
đm
500 500 220 245 145 kV
U
max
550 550 245 145 kV
I
đm
2000 2000 2000 1250 3150 A
I
cắt đm
40 40 40 31,5 31,5 kA
I
n đm
100 100 100 80 kA
t
In
3 3 3 3 3 s
C
tụ/pha
1200 pF
R
đóng trước
600 432/pha
Ω
mạch thao tác
5,5 7,1 6,0 5,0 5,5 bar
P ban đầu trong
bình N
2
170
4
W9Le
e7o
Trêng ®¹i häc b¸ch khoa hµ néi
B¸o c¸o thùc tËp tèt
nghiÖp
4 - M¸y biÕn dßng:
THÔNG SỐ MÁY BIẾN DÒNG .
T
T
Vị
trí
*0
43
Hảng sản
xuất
Tỷ số biến
GA38%-p@A@n
C
C1 C2 C3 C4 C5
1 571 CTH-550 ALSTOM
600-800-1000-
1200/1
/1
1200
/1
1200
/1
600/
1
1200
/1
4 574 CTH-550 ALSTOM
600-1200-
2000/1
1200/
1
1200
/1
1200
/1
1200
/1
1200
/1
5 580 CTH-550 ALSTOM
600-1200-
2000/1
1200/
1
1200
/1
1200
/1
8
580-
7
CTH-550 ALSTOM
600-1200-
2000/1
1200/
1
1200
/1
1200
/1
1200
/1
1200
/1
9
582-
7
CTH-550 ALSTOM
600-1200-
2000/1
1200/
1
1200
/1
1200
/1
1200
400-600-800-
1200/1
800/1
400/
1
600/
1
1200
/1
1200
/1
13 272 QDR-245 ALSTOM
600-800-
1200/1
1200/
1
1200
/1
600/
1
1200
/1
1200
/1
14 274 QDR-245 ALSTOM
600-800-
1200/1
1200/
1
1200
1200
/1
1200
/1
17 134
QDR-
123/2
ALSTOM
400-800-
1200/1
800/1
800/
1
800/
1
1200
/1
18 172
QDR-
123/2
ALSTOM
400-800-
1200/1
800/1
800/
1
800/
1
800/
1
nghiÖp
21 342 QDR-72/2 ALSTOM 50-100/1 100/1
100/
1
22 341
GSWF45
W
MAGRINI 400/1 400/1
e@3N--SN+/%ND=+qJ
eq=+N4 ## !!
e38N9 ( 1W ( 1W ( 1W
e@3N--SN+/
^Qb
? R R R R R
eND i# , i# , i# ,
5 - M¸y biÕn ®iÖn ¸p:
th«ng sè m¸y biÕn ®iÖn ¸p
T
T
Vị trí Loại
Hãng sản
xuất
U
đm
kV
Tỉ số biến
Tổ đấu
dây
1 TU571 CPTf500/5 MAGRINI 500
500.000/√3/110/√3
13 TU C12 CCV123 ALSTOM 110
123.000/√3/110/√3 Y/∆hở
14 TU C19 CCV123 ALSTOM 110
123.000/√3/110/√3
1 fa
15 TU172 CCV123 ALSTOM 110
123.000/√3/110/√3 Y/∆hở
16 TU174 CCV123 ALSTOM 110
123.000/√3/110/√3 Y/∆hở
17 TU176 CCV123 ALSTOM 110
123.000/√3/110/√3 Y/∆hở
18 TU342 ŨT-72 ALSTOM 35
35.000/√3/110/√3 Y/∆hở
e@3N--SN+/=+kJ #Q
eNDJ KN9Y9%4J Ri
KeN997'J,
6
Trờng đại học bách khoa hà nội
Báo cáo thực tập tốt
nghiệp
IV - Các thiết bị bảo vệ của trạm:
1 - Bảo vệ đờng dây 571.
1.1- Bảo vệ khoảng cách và qúa dòng có hớng.
GnCH7_>GQ!R,
r-=+H7_J
1100 POWER SYSTEM DATA
1101 Current transformer: Towards line
1102 System star-point condition: Solidly earthed
1103 Primarry rated voltage: 500 kV
1301 Zone 1: Resistance (phase-phase)R1: 15.00 Ohm
7
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B¸o c¸o thùc tËp tèt
nghiÖp
1302 Zone 1: Resistance (reach) X1: 3.88 Ohm
1303 Zone 1: Resistance (phase-earth)R1E: 20.00 Ohm
1304 Zone 1: Drection: Forwards
1305 Zone 1: Delay for single phase faults: 0.00 s
1306 Zone 1: Delay for multi- phase faults: 0.00 s
1311 Zone 2: Resistance settingR2: 15.00 Ohm
1312 Zone 2: Resistance X2: 10.37 Ohm
1313 Zone 2: Resistance (phase-earth)R2E: 20.00 Ohm
1314 Zone 2: Drection: Forwards
1315 Zone 2: Delay for single phase faults: 0.50 s
1316 Zone 2: Delay for multi- phase faults: 0.50 s
1321 Zone 3: ResistanceR3 : 15.00 Ohm
1322 Zone 3: Resistance X3 : 36.33 Ohm
1323 Zone 3: Resistance (phase-earth)R3E: 20.00 Ohm
1324 Zone 3: Drection: Forwards
1325 Zone 3: Delay for all faultsT3: 4.00 s
1400 DISTANCE PROTECTION: CONTROLLED ZONES
1401 Zone 1B: Resistance (phase-phase)R1B: 15.00 Ohm
1402 Zone 1B: Resistance (reach)X1B: 36.33 Ohm
1403 Zone 1B: Resistance (phase-earth)R1BE: 20.00 Ohm
1404 Zone 1B: Drection: Forwards
1405 Zone 1B: Delay for single phase faults: 0.00s
1406 Zone 1B: Delay for multi- phase faults: 0.00 s
1411 Zone 1L: Resistance (phase-phase)R1L: 15.00 Ohm
2203 Transient block. time after external flt : 0.01 s
2204 Waiting time for tran sient blocking : *s
2206 Send signal prolongation for P.O.T.T : 0.00 s
2210 Effective direct.for direct. comparison: Forwards
2212 Send signal delay for P.O.T.T : 0.10 s
2220 Echo function for weak infeeds : ON
2221 Echo delay time : 0.01 s
2222 Duration of echo impulse : 0.10 s
2223 Echo blocking time: 0.20 s
2400 SWITCH-ON-TO-FAULT PROTECTION
2401 Switch-on-to-fault function is : ON
2402 Release of switch-on-to-fault function: Only M/C
2404 Current for fault recognition:Isc : 1.80 I/In
2500 WEAK INFEED PROTECTION
2501 Weak infeed function is : ON
2502 Under voltage Uph : 50 V
2505 Reception signal delay(for stabilisation): 0.01 s
2506 Reception signal extension : 0.20 s
3700 OVER VOLTAGE PROTECTION
3701 Over voltage protection stage is: ON
3703 Over voltage pick-up value U> : 1.16 U/Un
3704 Over voltage reset ratio: U> reset/ U> : 0.9
3705 Trip time delay TU> : 1.00 s
3706 Over voltage compensation function : OFF
3708 Over voltage trip action: Local trip
3711 Highset over voltage protection stage is: ON
3712 Highset over voltage selection: Phase-Earth
3713 Highset over voltage pick-up value U>>: 1.75 U/Un
3714 Highset over voltage reset: U>> reset/ U>>: 0.9
3715 Highset over voltage fault detection action: OR COMBINET
2nd. harmonic in % of fundamental: 15%
Maximum inrush-peak value: 15.0 A
Time for Crossblock with 2nd harmonic: 0.00 s.
1.4- Bảo vệ quá dòng thứ tự không và quá áp:.
GnCH7_L9i!?!,
@Ar-=+H7_J
xL_+@3
6
-L9_J i+@_*_3-+7
V> Operrate Mode: Any phase
V> 1 Function: DT
V> 1 Voltage set: 74 V
V> 1 Time delay: 1.00 s
V> 2 Status: Enable
V> 2 Voltage set: 111 V
V> 2 Time delay: 0.00 s
Relay 1 (blocking signal): not used
Relay 2 (block AR): V>1/V>2 TRIP
Relay 3 (alarm): not used
Relay 4 (trip): V>1/V>2 TRIP
Relay 5 (intertrip): V>1/V>2 TRIP
Relay 6 (alarm): V>1 TRIP
10
Trờng đại học bách khoa hà nội
Báo cáo thực tập tốt
nghiệp
Relay 7 (alarm): V>2 TRIP
^e5@nCS Y9%4;3-9%TE-'b
2 - Bảo vệ đờng dây 574(Hà tĩnh - Đà Nẵng):
1138 Load compensation: Yes
1140 Current level to detect CB position I-RES: 0.10 I/In
1141 Voltage level to detect CB position U-RES: 20 V
1142 CB close zone release extension: 0.05 s
1143 Checking of circuit breaker position: CB AUX and I<
1145 Manual close zone release extension: 0.30 s
1300 DISTANCE PROTECTION: INDEPENDENT ZONES
11
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B¸o c¸o thùc tËp tèt
nghiÖp
1301 Zone 1: Resistance (phase-phase)R1: 15.00 Ohm
1302 Zone 1: Resistance (reach) X1: 3.78 Ohm
1303 Zone 1: Resistance (phase-earth)R1E: 20.00 Ohm
1304 Zone 1: Drection: Forwards
1305 Zone 1: Delay for single phase faults: 0.00 s
1306 Zone 1: Delay for multi- phase faults: 0.00 s
1311 Zone 2: Resistance settingR2: 15.00 Ohm
1312 Zone 2: Resistance X2: 10.10 Ohm
1313 Zone 2: Resistance (phase-earth)R2E: 20.00 Ohm
1314 Zone 2: Drection: Forwards
1315 Zone 2: Delay for single phase faults: 0.50 s
1316 Zone 2: Delay for multi- phase faults: 0.50 s
1321 Zone 3: ResistanceR3 : 15.00 Ohm
1322 Zone 3: Resistance X3 : 35.90Ohm
1323 Zone 3: Resistance (phase-earth)R3E: 20.00 Ohm
1324 Zone 3: Drection: Forwards
1325 Zone 3: Delay for all faultsT3: 1.00 s
1400 DISTANCE PROTECTION: CONTROLLED ZONES Z1B, Z1L
1701 thfault detection using Ue> : 20 V
1703 Loop selection with Ph-Ph-E fault detection: Block leading
1704 Loop selection with 3ph fault detection: E/F dependent
1707 Earthfault detection with: Ue> OR Ie>
2200 TELEPROTECT.: PERMISSIVE OVERREACH(P.O.T.T)
2201 Permissive overreach transfer trip is : ON
2202 Permissive overreach transfer trip feature: Z1B RELEASE
2203 Transient block. time after external flt : 0.01 s
2204 Waiting time for tran sient blocking : *s
2206 Send signal prolongation for P.O.T.T : 0.10 s
2210 Effective direct.for direct. comparison: Forwards
2212 Send signal delay for P.O.T.T : 0.00 s
2220 Echo function for weak infeeds : ON
2221 Echo delay time : 0.01 s
2222 Duration of echo impulse : 0.10 s
2223 Echo blocking time: 0.20 s
2400 SWITCH-ON-TO-FAULT PROTECTION
2401 Switch-on-to-fault function is : ON
2402 Release of switch-on-to-fault function: Only M/C
2404 Current for fault recognition:Isc : 1.80 I/In
2500 WEAK INFEED PROTECTION
2501 Weak infeed function is : ON
2502 Undervoltage Uph : 50 V
2505 Reception signal delay(for stabilisation): 0.01 s
2506 Reception signal extension : 0.20 s
3700 OVERVOLTAGE PROTECTION
3701 Overvoltage protection stage is: ON
3703 Overvoltage pick-up value U> : 1.16 U/Un
3704 Overvoltage reset ratio: U> reset/ U> : 0.9
3705 Trip time delay TU> : 1.00 s
GnCH7_JLemmZ#,
@Ar-=+H7_J
tg5/J q@y!,#q
'+5/J -y!@
^8%TE-'Y9%4-w%Tb,
2.4- Bảo vệ quá dòng chậm đất có hớng
GnCH7_JLemm##KLzq!!,
@Ar-=+H7_J
MCGG : Current setting : Is = 0.1 In
Time setting: t = 0.1 s
METI11: Internal angles setting: +45.
3 - Bảo vệ đờng dây 580 (Hà tĩnh - Nho Quan1):
3.1- Bảo vệ khoảng cách hợp bộ :
GnCH7_>GQ!R,
@Ar-=+H7_J
1100 POWER SYSTEM DATA
1101 Relay will internally roll CT polarity: Zero Degrees
1102 System star-point condition: Solidly earthed
1103 Primarry rated voltage: 500 kV
1104 Secondary rated voltage: 110 V
1105 Primarry rated current: 1200 A
1107 Min. current for CT-saturation: 20.00 I/In
1109 Ux voltage transformer connection: Not connected
1110 Nomimal Ph to nomimal 3V0 .sec. voltage ratio : 1.73
1111 I4 Current transformer connection: Protected line
14
Trêng ®¹i häc b¸ch khoa hµ néi
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nghiÖp
1306 Zone 1: Delay for multi- phase faults T1: 0.00 s
1311 Zone 2: Resistance settingR2: 15.00 Ohm
1312 Zone 2: Resistance X2: 28.26 Ohm
1313 Zone 2: Resistance (phase-earth)R2E: 20.00 Ohm
1314 Zone 2: Drection: Forwards
1315 Zone 2: Delay for single phase faults T2 1PH: 0.50 s
1316 Zone 2: Delay for multi- phase faults T2: 0.50 s
1321 Zone 3: ResistanceR3 : 15.00 Ohm
1322 Zone 3: Resistance X3 : 28.56 Ohm
1323 Zone 3: Resistance (phase-earth)R3E: 20.00 Ohm
15
Trêng ®¹i häc b¸ch khoa hµ néi
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1324 Zone 3: Drection: Forwards
1325 Zone 3: Delay for all faultsT3: 1.00 s
1400 DISTANCE PROTECTION: CONTROLLED ZONES Z1B, Z1L
1401 Zone 1B: Resistance (phase-phase)R1B: 15.00 Ohm
1402 Zone 1B: Resistance (reach)X1B: 28.56 Ohm
1403 Zone 1B: Resistance (phase-earth)R1BE: 20.00 Ohm
1404 Zone 1B: Drection: Forwards
1405 Zone 1B: Delay for single phase faults: 0.00s
1406 Zone 1B: Delay for multi- phase faults: 0.00 s
1407 Coord Timer for blocking scheme : 0.01 s
1411 Zone 1L: Resistance (phase-phase)R1L: 15.00 Ohm
1412 Zone 1L: Resistance (reach)X1L: 28.56 Ohm
1413 Zone 1L: Resistance (phase-earth)R1LE: 20.00 Ohm
1414 Zone 1L: Drection: Forwards
1415 Zone 1L: Delay for all faults T1L: +*s
Trờng đại học bách khoa hà nội
Báo cáo thực tập tốt
nghiệp
2220 Echo function for weak infeeds : ON
2221 Echo delay time : 0.04 s
2222 Duration of echo impulse : 0.05 s
2223 Echo blocking time: 0.15 s
2400 SWITCH-ON-TO-FAULT PROTECTION
2401 tch-on-to-fault function is : ON
2402 ease of switch-on-to-fault function: Only man. close
2404 Current for fault recognition:Isc : 1.80 I/In
2500 WEAK INFEED PROTECTION
2501 Weak infeed function is : ON
2502 Under voltage Uph : 50 V
2505 Reception signal delay(for stabilisation): 0.01 s
2506 Reception signal extension : 0.20 s
3100 EARTH FAULT PROTECTION: DRECT/NON DIRECT
3101 Earth fault protection is: ON
3102 Earth fault overcurrent characteristic: Del.inite Time
3103 Earth fault overcurrent threshold Ie> , Iep: 0.50 I/In
3104 Minimum voltage for direct. measurment Ue> : 5.0 V
3106 Delay time for directional trip T-Direc : 1.50 s
3107 Direction: Forword
3108 Delay time for non-direct. trip T Non-Dir>: +*s
3111 Directional decision: With Ue and IY
3112 Ue inverse time characteristic Ue> INV: 0.2 V
3113 Rapid trip (w/3115) w/ rapid auto reclose(RAR): off
3114 Mode of operation with manual close (M/C): off
3115 Delay for RAR(3113) and MC w/ F/ D dir (3114): 0.00 s
3200 EARTH FAULT DIRECTIONAL COMPARISON PROTECTION.
4@A0[!J Rl
tg@974uqG#J #,Q
4@A0[#J !l
'+-v-D43)-7.8^iqbJ @
G+@A-'+-v.-32J #9@_
'+-vw'-32J ,!@_
e89-8F7J e)-7.8%@AR+
e8)-J !+,
3.4- Bảo vệ quá áp ,quá dòng Io .
GnCH7_Lqe{Li!?!,
@Ar-=+H7_J
GROUP 1 EARTH FAULT 1
IN1>1 Function: DT
IN1> 1Drirection: Drirection Fwd
IN1> 1Current: 500.0 mA
IN1>1 Time delay: 1.500 s
IN1>1 T.RESET: 0.000 s
IN1>2 Function: DT
IN1>2 Drirection: Drirection Rev
IN1> 2Current: 80.00 mA
IN1> 2Time delay: 0.000 s
IN1>2 T.RESET: 0.300 s
IN1> Char Agle: - 45
0
GROUP 1 VOLT. PROTECTION.
UNDERVOLTAGE:
V< Measur
t Mode: Phase-Neutral
V< Operate Mode: Any phase
V> Measur
t Mode: Phase-Neutral
V> Operate Mode: Any phase
V> 1Function: DT
V> Voltage set: 74 V
V> Time delay: 1.00 s
V> 2 Status: Enable
V> 1 Voltage set: 111 V
V> Time delay: 0.00 s
4 - Bảo vệ đờng dây 582 (Hà tĩnh - Nho Quan1):
4.1- Bảo vệ khoảng cách , quá áp, chống đóng vào điểm sự cố:
GnCH7_>GQ!R,
@Ar-=+H7_J
1100 POWER SYSTEM DATA
1101 Relay will internally roll CT polarity: Zero Degrees
1102 System star-point condition: Solidly earthed
1103 Primarry rated voltage: 500 kV
1104 Secondary rated voltage: 110 V
1105 Primarry rated current: 1200 A
1107 Min. current for CT-saturation: 20.00 I/In
1109 Ux voltage transformer connection: Not connected
1110 Nomimal Ph to nomimal 3V0 .sec. voltage ratio : 1.73
1111 I4 Current transformer connection: Protected line
1112 Matching factor Ie/Iph (Ie Protected line): 1
19
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1311 Zone 2: Resistance settingR2: 15.00 Ohm
1312 Zone 2: Resistance X2: 27.00 Ohm
1313 Zone 2: Resistance (phase-earth)R2E: 20.00 Ohm
1314 Zone 2: Drection: Forwards
1315 Zone 2: Delay for single phase faults T2 1PH: 0.50 s
1316 Zone 2: Delay for multi- phase faults T2: 0.50 s
1321 Zone 3: ResistanceR3 : 15.00 Ohm
1322 Zone 3: Resistance X3 : 27.00 Ohm
1323 Zone 3: Resistance (phase-earth)R3E: 20.00 Ohm
1324 Zone 3: Drection: Forwards
20
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1325 Zone 3: Delay for all faultsT3: 1.00 s
1400 DISTANCE PROTECTION: CONTROLLED ZONES Z1B, Z1L
1401 Zone 1B: Resistance (phase-phase)R1B: 15.00 Ohm
1402 Zone 1B: Resistance (reach)X1B: 27.00 Ohm
1403 Zone 1B: Resistance (phase-earth)R1BE: 20.00 Ohm
1404 Zone 1B: Drection: Forwards
1405 Zone 1B: Delay for single phase faults: 0.00s
1406 Zone 1B: Delay for multi- phase faults: 0.00 s
1407 Coord Timer for blocking scheme : 0.01 s
1411 Zone 1L: Resistance (phase-phase)R1L: 15.00 Ohm
1412 Zone 1L: Resistance (reach)X1L: 27.00 Ohm
1413 Zone 1L: Resistance (phase-earth)R1LE: 20.00 Ohm
1414 Zone 1L: Drection: Forwards
1415 Zone 1L: Delay for all faults T1L: +*s
1600 DISTANCE PROTECTION: FAULT DETECTION
Trờng đại học bách khoa hà nội
Báo cáo thực tập tốt
nghiệp
2221 Echo delay time : 0.04 s
2222 Duration of echo impulse : 0.05 s
2223 Echo blocking time: 0.15 s
2403 SWITCH-ON-TO-FAULT PROTECTION
2404 Switch-on-to-fault function is : ON
2405 Release of switch-on-to-fault function: Only man. close
2404 Current for fault recognition:Isc : 1.80 I/In
3700 OVER VOLTAGE PROTECTION
3701 Over voltage protection stage is: ON
3703 Over voltage pick-up value U> : 1.3 U/Un
3704 Over voltage reset ratio: U> reset/ U> : 0.9
3705 Trip time delay T-U> : 1.00 s
3706 Over voltage compensation function : OFF
3708 Over voltage trip action: Local trip
3711 Highset over voltage protection stage is: ON
3712 Highset over voltage selection: Phase-Earth
3713 Highset over voltage pick-up value U>>: 1.75 U/Un
3714 Highset over voltage reset: U>> reset/ U>>: 0.9
3715 Highset over voltage fault detection action: OR COMBINET
3716 Delay time with closed circuit breaker: 0.06 s
3717 Delay time with open circuit breaker: 0.02 s
3718 Time for block. of highset over voltage: 0.06 s
3720 Highset over voltage trip action: Local trip
3721 Duration of sed signal: 0.25 s
4.2- Bảo vệ so lệch dọc (F87L).
GnCH7_J>Gt##
@Ar-=+H7_J
IN1> 2Time delay: 0.000 s
IN1>2 t.RESET: 0.300 s
IN1> Char Agle: - 45
0
GROUP 1 VOLT. PROTECTION.
UNDERVOLTAGE:
V< Measur
t Mode: Phase-Neutral
V< Operate Mode: Any phase
V< 1Function: Disabled
V< 2 Status: Disabled
OVERVOLTAGE:
V> Measur
t Mode: Phase-Neutral
V> Operate Mode: Any phase
V> 1Function: DT
V> Voltage set: 74 V
V> Time delay: 1.00 s
V> 2 Status: Enable
V> 1 Voltage set: 111 V
V> Time delay: 0.00 s
5 - Bảo vệ đờng dây 272.
5.1- Bảo vệ khoảng cách và qúa dòng có hớng(F21).
GnCH7_ziQeR
@Ar-=+H7_J
LINE CHARACTERISTICS:
Nominal frequency: 50 Hz
Nominal voltage: 110V
Zone 5 impedance: 13 Ohm LV
Zone 3 Direction: Forwards
Zone 1 Time delay (T1): 0 ms
Zone 2 Time delay (T2): 500 ms
Zone 3 Time delay (T3): 4000 ms
Zone 4 Time delay (T4): 5000 ms
Zone 5 Time delay (T5): 5000 ms
Phase - earth resistance zone 1: 21 Ohm LV
Phase - phase resistance zone 1: 21 Ohm LV
Limit resistance for zone 2: 23 Ohm LV
Limit resistance for zone 3: 30 Ohm LV
Starting limit resistance: 65 Ohm LV
FUSE FAILURE SETTING:
I0 and I2 threshold detection: 0.05 In
Fuse failure alarm time delay: 1 s
Ifus> enabled
Ifus> threshold: 1 In
Tfus> time-delay: 1000 ms
Ifus> enabled
Ifus> threshold: 2.5 In
Tfus> time-delay: 300 ms
24
Trờng đại học bách khoa hà nội
Báo cáo thực tập tốt
nghiệp
5.2- Bảo vệ khoảng cách và qúa dòng có hớng(F21).
GnCH7_>GQ!!,
@Ar-=+H7_J
1100 POWER SYSTEM DATA
1315 Zone 2: Delay for single phase faults T2 1PH : 0.50 s
1316 Zone 2: Delay for multi- phase faults T2: 0.50 s
1317 Single pole trip for faults in Z2: no
1321 Zone 3: Resistance (phase-phase) R3: 11.39 Ohm
1322 Zone 3: Resistance (reach) X3: 47.65 Ohm
1323 Zone 3: Resistance (phase-earth) R3E: 30.00 Ohm
1324 Zone 3: Drection: Forwards
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