NOTE
If a setting is selected such that the dropout threshold (= pickup threshold · dropout ratio) results in a
greater value than 130 V/225 V, it will be limited automatically. No error message occurs.
Current Criterion for Undervoltage Protection
The 27-1 element and the 27-2 element can be supervised by the current flow monitoring setting. If the
CURRENT SUPERV. is switched ON at address 5120 (factory setting), the release condition of the current
criterion must be fulfilled in addition to the corresponding undervoltage condition, which means that a config-
ured minimum current (BkrClosed I MIN, address 212) must be present to make sure that this protective
function can pick up. Thus it can be achieved that pickup of the undervoltage protection drops out when the
line is disconnected from voltage supply. Furthermore, this feature prevents an immediate general pickup of
the device when the device is powered-up without measurement voltage being present.
NOTE
If parameter CURRENT SUPERV.is set to disabled at address 5120, the device picks up immediately if the
measuring-circuit voltage fails and the undervoltage protection is enabled. Furthermore, configuration can
be performed by pickup of measuring-circuit voltage or blocking of the voltage protection. The latter can be
initiated via device operation in DIGSI and via communication from the control center by means of a
tagging command for blocking the voltage protection. This causes the dropout of the pickup and parame-
terization can be resumed.
Please note that the pickup threshold BkrClosed I MIN (address 212) also affects the overload protection,
the cold load pickup function and the CB maintenance.
Settings
Addresses which have an appended “A” can only be changed with DIGSI, under “Additional Settings”.
Addr.
Parameter Setting Options Default Setting Comments
5001 FCT 59 OFF
ON
Alarm Only
OFF 59 Overvoltage Protection
5002 59-1 PICKUP 20 .. 260 V 110 V 59-1 Pickup
5003 59-1 PICKUP 20 .. 150 V 110 V 59-1 Pickup
5004 59-1 DELAY 0.00 .. 100.00 sec; ∞ 0.50 sec 59-1 Time Delay
5005 59-2 PICKUP 20 .. 260 V 120 V 59-2 Pickup
5006 59-2 PICKUP 20 .. 150 V 120 V 59-2 Pickup
5007 59-2 DELAY 0.00 .. 100.00 sec; ∞ 0.50 sec 59-2 Time Delay
5015 59-1 PICKUP V2 2 .. 150 V 30 V 59-1 Pickup V2
5016 59-2 PICKUP V2 2 .. 150 V 50 V 59-2 Pickup V2
5017A 59-1 DOUT RATIO 0.90 .. 0.99 0.95 59-1 Dropout Ratio
5018A 59-2 DOUT RATIO 0.90 .. 0.99 0.95 59-2 Dropout Ratio
5019 59-1 PICKUP V1 20 .. 150 V 110 V 59-1 Pickup V1
5020 59-2 PICKUP V1 20 .. 150 V 120 V 59-2 Pickup V1
5101 FCT 27 OFF
ON
Alarm Only
OFF 27 Undervoltage Protection
5102 27-1 PICKUP 10 .. 210 V 75 V 27-1 Pickup
5103 27-1 PICKUP 10 .. 120 V 45 V 27-1 Pickup
5106 27-1 DELAY 0.00 .. 100.00 sec; ∞ 1.50 sec 27-1 Time Delay
2.6.5
Functions
2.6 Voltage Protection 27, 59
130 SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017
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