Motor Operation; Cable Testing - ABB SafeRing Installation And Operating Instructions Manual

SafeRing / SafePlus
SF 6 insulated ring main unit and compact switchgear
Installation and operating instructions

6.5 MOTOR OPERATION

Cable switches, vacuum circuit-breakers and earthing switches
are operated by mechanisms located behind the front panel.
The mechanisms for all the switches and breakers are operated
manually with the operating level (standard), or are fitted with
motor operation (additional equipment). The earthing switch can
only be operated manually and is fitted with mechanisms to
achieve fault making capabilities.
Motor operation can be easily retrofitted.
NHP 304708
ABB / PTMV

6.6 CABLE TESTING

Voltage testing and locating cable faults can be performed in
two ways:
1. Directly at the testing points (A) if they are fitted on the
unit. Proceed as follows: engage the earthing switch.
Connect the testing equipment on top of the testing points
which hold the earth bar (B). Remove the earth bar and
perform the test. Refit the earth strip before the testing
equipment is disconnected
2. Directly at the cable connectors which are designed for
testing the voltage of the cable.
Follow the supplier's instructions.
2.1. Cable connector connected
2.2. Cable connector dismounted
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NOPOWSR 5976 GB