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Product Description
T&R Test Equipment is a market leader in
the field of current injection equipment. The range includes secondary
injection units with 100A output capability up to 6000A primary injection
systems. All have true RMS metering, a flexible timing system, and an easy
to understand user interface.
The 750ADM
and 750ADM-H are compact, rugged primary current injection systems with a
750A output capability. The 750ADM has a maximum no load output voltage of
3.5V and the 750ADM-H has a maximum voltage of 5V. The units are ideally
suited to all low power primary injection tasks
requiring up to 750A for short periods.
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Unit Type |
Maximum
Power Rating |
Maximum
Current |
|
|
750ADM |
2kVA |
750A |
|
750ADM-H |
3kVA |
750A |
|
PCU1/E +LU3000 |
7kVA |
3000A |
|
PUC2/E +LU6000 |
20kVA |
6000A |
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Where higher currents and powers are
required for primary injection, 7kVA
and 20kVA primary injection systems
are available. The PCU1/E and
PCU2/E systems have separate
control and loading units, allowing a
wide range of load conditions to be
covered with different loading units. The units have two outputs,
allowing injection of currents as low as a few hundred milliamps and
up to 750A.
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PCU1/E
LU500
and LU3000 |
Voltages up to 16V are available on the 40A output, allowing higher
impedance trips 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 connectors are used on all inputs and outputs for
convenience, reliability and safety.
The 750ADM and 750ADM-H are
comprehensively protected by electronic overcurrent and thermal trips. 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 accuracy. Two contact
inputs are provided, each of which may be trigged by a volt-free contact
or a dc voltage. The contact inputs auto-sense for normally open or
normally closed contacts.
Applications
The 750ADM can be used to test many devices
including:
- Circuit breakers.
- Primary injection of over-current relays.
- Auto-reclosers.
- MCB’s.
The unit can also be used for current transformer
ratio testing and as a dual channel stand-alone timing system.
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