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8.2 Control line connection
This machine provides 3-core sheathed wires as internal power output conductors (red is the
closing conductor, green is the opening conductor, and black is the power common terminal) and 3-core
sheathed wires are used as external operating voltage acquisition leads.
When the switch-on and switch-off control power is provided by the instrument, disconnect the
control power in the switch control box under test (usually disconnect the fuse connected to the control
power in the control box and the control bus), but the power supply of the switch mechanism cannot be
cut , And then wire as shown below. The instrument can only provide DC current internally. Use the
instrument's internal power supply to “internal trigger”. If the on-site switch is an AC operating mechanism,
please use the "external trigger" method.
