The set times are additional time delays that do not include the operating time (measuring time, dropout
time) of the protection function. If a delay time is set to , this does not result in a trip, however, the pickup
will be indicated.
Dropout Ratio
The drop-out ratio can be adjusted to the operating conditions at address 5217 DOUT RATIO. This parameter
can only be altered in DIGSI under Additional Settings.
Settings
Addresses which have an appended “A” can only be changed with DIGSI, under “Additional Settings”.
Addr. Parameter Setting Options Default Setting Comments
5201 UNDERVOLTAGE OFF
ON
Block relay
OFF Undervoltage Protection
5211 U< 10.0 .. 125.0 V 75.0 V U< Pickup
5212 U< 0.10 .. 1.25 U/UnS 0.75 U/UnS Pick-up voltage U<
5213 T U< 0.00 .. 60.00 sec; ∞ 3.00 sec T U< Time Delay
5214 U<< 10.0 .. 125.0 V 65.0 V U<< Pickup
5215 U<< 0.10 .. 1.25 U/UnS 0.65 U/UnS Pick-up voltage U<<
5216 T U<< 0.00 .. 60.00 sec; ∞ 0.50 sec T U<< Time Delay
5217A DOUT RATIO 1.01 .. 1.20 1.05 U<, U<< Drop Out Ratio
Information List
No.
Information Type of
Informa-
tion
Comments
033.2404 >BLOCK U/V SP >BLOCK undervoltage protection
033.2411 Undervolt. OFF OUT Undervoltage protection is switched OFF
033.2412 Undervolt. BLK OUT Undervoltage protection is BLOCKED
033.2413 Undervolt. ACT OUT Undervoltage protection is ACTIVE
033.2491 U< err. Obj. OUT Undervoltage: Not avail. for this obj.
033.2492 U< err. VT OUT Undervoltage: error assigned VT
033.2502 >BLOCK U<< SP >BLOCK undervoltage protection U<<
033.2503 >BLOCK U< SP >BLOCK undervoltage protection U<
033.2521 U<< picked up OUT Undervoltage U<< picked up
033.2522 U< picked up OUT Undervoltage U< picked up
033.2551 U<< TRIP OUT Undervoltage U<< TRIP
033.2552 U< TRIP OUT Undervoltage U< TRIP
2.14.3
2.14.4
Functions
2.14 Undervoltage Protection
SIPROTEC 4, 7UT6x, Manual 235
C53000-G1176-C230-5, Edition 09.2016
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