Siemens SIPROTEC 5 6MU85 User Manual

Measuring-Voltage Failure Detection
Setting Values
3ph.fail. - VA,VB,VC < 0.300 V to 340 000 V Increments of 0.001 V
3ph.fail. - phs.curr.release 1 A @ 50 and100 Irated 0.030 A to 35.000 A Increments of 0.001 A
5 A @ 50 and100 Irated 0.15 A to 175.00 A Increments of 0.01 A
1 A @ 1.6 Irated 0.001 A to 1.600 A Increments of 0.001 A
5 A @ 1.6 Irated 0.005 A to 8.000 A Increments of 0.001 A
3ph.fail. - phs.curr. jump 1 A @ 50 and100 Irated 0.030 A to 35.000 A Increments of 0.001 A
5 A @ 50 and100 Irated 0.15 A to 175.00 A Increments of 0.01 A
1 A @ 1.6 Irated 0.001 A to 1.600 A Increments of 0.001 A
5 A @ 1.6 Irated 0.005 A to 8.000 A Increments of 0.001 A
Asym.fail. - time delay 0.00 s to 30.00 s Increments of 0.01 s
SO 3ph.fail. - time delay 0.00 s to 30.00 s Increments of 0.01 s
Dropout
The larger dropout differential (= | pickup value – dropout threshold |) of the following 2 criteria
is used:
Dropout differential derived from the parameter Dropout ratio
If this parameter is not available, a dropout ratio of 95 % applies to the current threshold value and a dropout
ratio of 105 % applies to the voltage threshold value.
Minimum absolute dropout differential 150 mV sec.
Times
Pickup time
Approx. 10 ms + OOT
73
at 50 Hz
Approx. 10 ms + OOT at 60 Hz
Dropout time Approx. 20 ms + OOT
Times
Use in function group
Line
Pickup time
Approx. 10 ms + OOT
74
at 50 Hz
Approx. 9 ms + OOT at 60 Hz
Use in other function group types
Pickup time
Approx. 20 ms + OOT
75
at 50 Hz
Approx. 18 ms + OOT at 60 Hz
12.17
73
OOT (Output Operating Time) Additional delay of the output medium used, see chapter 12.1.4 Relay Outputs
74
OOT (Output Operating Time) Additional delay of the output medium used, for example 5 ms with fast relays, see chapter
12.1.4 Relay Outputs
75
OOT (Output Operating Time) Additional delay of the output medium used, for example 5 ms with fast relays, see chapter
12.1.4 Relay Outputs
Technical Data
12.17 Measuring-Voltage Failure Detection
852 SIPROTEC 5, Merging Unit 6MU85, Manual
C53000-G5040-C074-1, Edition 01.2020

Siemens SIPROTEC 5 6MU85 Specifications

General

Brand	Siemens
Model	SIPROTEC 5 6MU85
Category	Industrial Equipment
Language	English