T E S T P R O C E D U R E S
59
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5. Test procedures
5.1 Testing for the off-circuit condition
The off-circuit condition on the cable side is tested
by means of the capacitive voltage indicator (pick-
off on the outer cone). Capacitive Voltage Detection
system can be used (Fig.5.1.1 to 5.1.5):
•
LRM system.
•
KVDS system.
•
CAVIN system.
•
System Wega 1.2 C or.
•
System Wega 2.2 C.
Observe the instruction manual for the
system used.
•
Check the function of the equipment immediately
before use. The optical display must be clearly
visible.
•
The sockets of the capacitive indicator system
must never be short-circuited, except during
voltage testing on the switchgear.
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Fig. 5.1.1
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Fig. 5.1.2
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Fig. 5.1.4
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Fig. 5.1.5
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Fig. 5.1.6
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Fig. 5.1.3
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Fig. 5.1.1 LRM system
with display unit
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Fig. 5.1.2
KVDS-system
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Fig. 5.1.3
CAVIN-system
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Fig. 5.1.4 System
Wega 1.2 C
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Fig. 5.1.5 System
Wega 2.2 C
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Fig.5.1.6 CVD system
5.1.1 LRM-system
Testing for the off-circuit condition is performed
with a plug-in display unit (design to IEC 61243-5)
at the three pairs of measuring sockets.
Perform repeat tests on the system in
accordance with IEC 61243-5, for instance
with interface tester KSP. Observe the
instructions for the interface tester.
5.1.2 KVDS - und CAVIN - and Wega systems
Testing for the off-circuit condition is performed
with the display on the unit. No separate display
unit is required.
5.1.3 CVD system
Testing for the off-circuit condition is performed
with LED indicators on the unit. No separate dis-
play unit is required.
Hazard warning
Perform repeat tests on the system in accordance
with IEC 61243-5.
