An auxiliary metering input is
provided and can measure AC and DC voltage, current, frequency, and the
phase between the main current output and an external voltage or current.
A stabilized DC supply is provided to power the relay under test, along
with an independently variable AC output.
The timing system is very
flexible without compromising ease of use, allowing trip times, reset
times and reclose times to be quickly measured to a high degree of
The unit has a range of outputs
allowing injection of currents as low as 1mA and as high as 200A. Voltages
up to 240V are available on the main outputs, allowing high impedance
current relays and voltage relays to be tested. Four true RMS metering
ranges are provided, allowing the full scale of the meter and trip level
to be set independently of the selected output. Industry standard safety
connectors are used on all inputs and outputs for convenience, reliability
The 200ADM is comprehensively
protected by overcurrent, duty cycle and thermal trips, and keeps the user
fully informed of any trip condition. The 200ADM can be used to test many
types of single phase secondary protection including:
- Over and under current relays.
- IDMT relays.
- Over and under voltage relays.
- Time delay relays
- Earth fault relays.
- Miniature circuit breakers.
- Power relays.
- Tripping relays.
- Thermal relays.
- Voltage regulating