9 – 97
9.5
Handheld test device
The handheld test device is used to check that the trip unit, the energy and current transformers, the F5 tripping solenoid and the measured
value display are functioning properly.
9.5.1
View
(1)
LED for operating voltage indication
(2)
Control buttons
(3)
6 LEDs to show test results
9.5.2
Preparations
- Open and isolate the circuit breaker
- Document the trip unit setting values of the overload release
- Setting value I
R
= 1.0 I
n
- Interrupt external voltage supply for the electronic system, if present
- Remove the cap from test socket X25 of the trip unit
NOTICE
Circuit breaker may trip.
If the trip settings are changed while the breaker is closed (and under load) the breaker may trip.
Adjust parameters only when the circuit breaker is in the open position.
Cat. No. WLTS, Rev. 0.0 3WL9111-1AT31-0AA0
s
Test Device for WL Electronic Trip Units
TRIP TEST
POWER
CURRENT TRANSFORMER TEST
START
S
I
N
G
= O.K.
L1 L2 L3
N
G
ETU
STATUS
Input 110 ... 125 VAC, 50/60 Hz
0556_nu
(1)
(2)
(3)
Summary of Contents for UL 1066
Page 56: ...7 5 7 2 Frame size II fused ...
Page 58: ...7 7 ...
Page 63: ...7 12 8 27 210 0 8 27 210 0 8 27 210 0 3 75 95 2 ...
Page 64: ...7 13 ...
Page 65: ...7 14 7 7 Frame size III fuse carriage ...
Page 66: ...7 15 ...
Page 69: ...7 18 7 9 External sensor for neutral conductor WLNCT2 ...
Page 70: ...7 19 WLNCT3 ...
Page 85: ...9 5 I tripping Ground fault tripping ...
Page 231: ...15 12 Pre assembling the locking module Installing 0767 1 2 3 4 6 5 ...
Page 232: ...15 13 1 Socket head cap screw M5 with washer and nut 7 8 Size 4 5 Nm 45 lb in ...
Page 289: ...23 7 23 3 3 Installing arc chutes 1 2 6 5 PH 2 0043 02 3 4 5 6 For frame size III 3 PH 2 ...
Page 298: ...23 16 6 7 8 9 5 2 1 Size 5 mm ...
Page 333: ......