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Testable overcurrent releases
Assignment of test modules to switching unit
4. Release Tester Description
ZES-4
POWER
Power indication
Supply voltage cable
5. Description of test module
ZES-4
5
4
3
2
1
Indication: „Winding interrupted"
Indication: „Winding O.K."
Indication: „Winding short-circuited"
..........................................ZES-4
5
6
4
7
3
8
2
9
1
10
Range selector switch
Main switch
Supply terminals
R >R
n
norm
ZES-4-BL800/1600
R =R
n
norm
R <R
n
norm
...................ZES-4
!
Warning of prohibition of overcurrent release
testing SE-BD-..,SE-BH-.. in positions 6-10.
TEST
!
SE-BD-0...-....
SE-BH-0...-....
TEST ON
TEST ON
TEST OFF
TEST OFF
N.C. SE-B.-....-....
N.C. SE-B.-....-....
T/0,5A
I
o
Transformer winding selector switch
TEST
BL1600
BL800
BL1000
Change-over switch of the switching unit BL800...,
BL1000... and BL1600...
- 3 -
II.
(Tab.1)
II.
(Tab.2)
Test is running (LED is ON)
Test completed (LED is OFF)
Release is not connected
(LED is flashing)
TEST button
Fuse
max.60V
ZES-4
No: 00001-0001
Test cable connector
n [ ]
1
W
2
3
V
4
5
U
6
TEST
GB
990445d
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