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T and R ADM100

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T and R ADM100

Features

• 0-100A output current
• Accurate true RMS digital metering
• All outputs fully isolated
• Multi-function 1ms resolution timing system
• Auxiliary DC output
• Auxiliary AC output
• Large LED displays
• Electronic over-current protection
• Compact and portable
• Triple supply voltage operation

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 100ADM test system is regarded as an industry standard for testing protection systems. It provides commissioning and maintenance engineers with a compact, portable and flexible system for the testing and timing of protective relays, circuit breakers and auto-reclosers. The unit is equally at home testing solid state or electro-magnetic relays. A matching filter unit is available for testing disc induction relays and other devices causing distortion of the test current.

The unit has a range of outputs allowing the injection of currents up to 100A. 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. The lowest range gives a resolution of 1mA, and the highest range has a full scale of 100A. Industry standard connectors are used on all inputs and outputs for convenience, reliability and safety. The 100ADM is comprehensively protected by electronic overcurrent trips and fuses.

A stabilised DC supply is provided to power the relay under test, and a fixed auxiliary AC output facilitates the testing of directional relays.

The timing system on the 100ADM is very flexible and exceptionally easy to use. It allows trip times, reset times and reclose times to be quickly measured to a high degree of accuracy. Ease of use is enhanced by contact inputs that automatically select for normally open or normally closed contacts. The timer may also be operated independently to time external events.

The 100ADM 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
• Auto-reclosers
• Time delay relays
• Earth fault relays
• Miniature circuit breakers
• Power relays
• Tripping relays
• Thermal relays
• Voltage regulating relays

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