ABB SafeRing User Manual

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7. Disconnect test equipment.
19.2 PROCEDURE FOR TESTING DIRECTLY ON THE
CABLE CONNECTOR WITH THE CABLE CONNECTED TO
THE SWITCHGEAR
1. Open switch disconnector.
2. Check voltage status.
3. If voltage is not present, close the earthing switch.
4. Open cable compartment cover.
5. Connect test rod or test lead to cable connector, keeping
the cable connected to the switchgear.
6. Open earthing switch and perform the test.
Respect maximum test voltage levels as detailed in table
below. Recommended test values can be applied with
busbars energized.
7. Close the earthing switch.
8. Disconnect the test equipment.
9. Complete the cable connector with insulating plugs.
10. Refit cable compartment cover.
19.3 PROCEDURE FOR TESTING DIRECTLY ON THE
CABLE CONNECTOR WITH THE CABLE DISCONNECTED
FROM THE SWITCHGEAR
1. Open switch disconnector.
2. Check voltage status.
3. If voltage is not present, close the earthing switch.
4. Open cable compartment cover.
5. Remove cable connector from the switchgear.
6. Connect test rod or test lead to cable connector.
7. Perform the test respecting maximum test voltage levels as
detailed in instructions from cable supplier and cable con-
nector supplier.
When the cables are disconnected at both ends, the cable
testing is independent from the switchgear. Procedures and
test values are determined by the cable, cable terminations
and test equipment. Test procedure and methods must
follow recommendations and limitations related to the
cable, cable terminations and test equipment.
8. Disconnect test equipment.
9. Refit cable connector to switchgear.
10. Refit cable compartment cover.
Maximum cable test voltages when testing directly on the cable connector with the cable connected to the switchgear
Rated voltage of the switchgear Ur (kV rms) 12kV 17,5kV 24kV Time
Power frequency cable test voltage Uct(ac) (kV rms) 12kV 17,5kV 24kV 15 min.
DC cable test voltage Uct(dc) (kV peak) 24kV 34,8kV 48kV 15 min.
VLF cable test voltage (Sine-wave, 0,1Hz) Uct(VLF) (kV rms) 18kV 26,1kV 36kV 15 min.
VLF cable test voltage (Cosine-rectangular, 0,1Hz Uct(VLF) (kV peak) 25,5kV 36,9kV 51kV 15 min.

ABB SafeRing Specifications

General

Brand	ABB
Model	SafeRing
Category	AC Power Distribution
Language	English