Functions
2.21 Undervoltage Protection (ANSI 27)
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
177
2.21.3 Settings
Addresses which have an appended "A" can only be changed with DIGSI, under Additional Settings.
2.21.4 Information List
Addr. Parameter Setting Options Default Setting Comments
4001 UNDERVOLTAGE OFF
ON
Block relay
OFF Undervoltage Protection
4002 U< 10.0 .. 125.0 V 75.0 V U< Pickup
4003 T U< 0.00 .. 60.00 sec; ∞ 3.00 sec T U< Time Delay
4004 U<< 10.0 .. 125.0 V 65.0 V U<< Pickup
4005 T U<< 0.00 .. 60.00 sec; ∞ 0.50 sec T U<< Time Delay
4006A DOUT RATIO 1.01 .. 1.20 1.05 U<, U<< Drop Out Ratio
No. Information Type of In-
formation
Comments
6503 >BLOCK U/V SP >BLOCK undervoltage protection
6506 >BLOCK U< SP >BLOCK undervoltage protection U<
6508 >BLOCK U<< SP >BLOCK undervoltage protection U<<
6530 Undervolt. OFF OUT Undervoltage protection switched OFF
6531 Undervolt. BLK OUT Undervoltage protection is BLOCKED
6532 Undervolt. ACT OUT Undervoltage protection is ACTIVE
6533 U< picked up OUT Undervoltage U< picked up
6537 U<< picked up OUT Undervoltage U<< picked up
6539 U< TRIP OUT Undervoltage U< TRIP
6540 U<< TRIP OUT Undervoltage U<< TRIP
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