BLOCK
Timer
ALARM
TCS
status
TCS_STATE
0
0-t
ANSI11000289 V1 EN
Figure 63:
Functional module diagram
Trip circuit supervision generates a current of approximately 1.0 mA
through the supervised circuit. It must be ensured that this current will
not cause a latch up of the controlled object.
To protect the trip circuit supervision circuits in the IED, the output
contacts are provided with parallel transient voltage suppressors. The
breakdown voltage of these suppressors is 400 +/– 20 V DC.
Timer
The binary input
BLOCK
can be used to block the function. The activation of the
BLOCK
input deactivates the
ALARM
output and resets the internal timer.
9.2.7
Technical data
Table 92:
TCSSCBR Technical data
Function
Range or value
Accuracy
Operate time delay
(0.020 - 300.000) s
± 0,5% ± 110 ms
Section 9
1MRK 505 277-UUS C
Secondary system supervision
158
Technical Manual
Summary of Contents for REB650
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