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Test Interfaces for Power Systems


ITS is a flush-mount test block for interfacing substation devices (protection relays, fault recorders, revenue meters, ... ) to the voltage and current transformers and to other equipment on the system side of a power grid.

STP is a test plug keyed to a particular configuration of ITS test blocks. Once inserted into the corresponding test block, the STP plug isolates the substation devices from the system side equipment while at the same time allowing connection of test equipment for secondary injection tests.
← Click on an element to add it to your configuration.
C-C / C-C-C-C = 2 / 4 current modules with shorting bridge in pin/plug (current shorting takes place upon pin/plug insertion, on A-side)
V = voltage module
S = signal module
T = trip module
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← Click on lower part of an element to delete it.

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