Preliminary
9.3 GST
The GST configuration permits testing of a grounded insulation specimen through the specimen's
ground. All current flowing to ground is measured. The configuration is illustrated bellow:
In the example above you measure the Capacitance and dissipation factor between HV and LV
(C
HL
), HV and tertiary TV (C
HT
) and HV and tank (C
HG
). The total measured capacitance represents
the sum of the three capacitances.
9.3.1 GST A + B
Grounded specimen test channel A + B, capacitance measured = C
A
+ C
B
+C
G .
90315-1.2 Instruction Manual CAPO
Page 77 of 117
GST A + B
Содержание CAPO 2.5
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