T & R Test Equipment is in the field of protection test equipment.
The range includes current injection equipment up 6000A, voltage sources, micro-ohmmeters and HV test systems up to 100kV.
The KV10-120, KV15-80 and KV30-40 high voltage test sets, from Macey's Electrical , are general purpose test instruments designed for testing insulation systems and the measurement of breakdown voltage on electrical plant and components.
The units have an output voltage variable from zero to 10kV (KV10-120), 15kV (KV15-80) or 30kV (KV30-40) with accurate metering on both the output voltage and current. A zero-voltage interlock is provided, ensuring that the output may only be energised with the voltage control at zero.
The output voltage is metered by a large, linear analogue instrument marked 0-12kV, 0-20kV and 0-40kV on the three units. All units have an x0.5 range on the voltmeter giving a full scale of 6kV, 10kV or 20kV respectively.
Load current is metered by a second analogue instrument with a full scale of 140mA (KV10-120), 100mA (KV15-80) or 50mA (KV30-40). A÷10 range is provided on both units, allowing the full scale on the current metering to be reduced by a factor of 10.
The test object and output are protected by an adjustable current trip. The trip level may be set to 10-110% of the rated output in 10% steps. Breakdown of the test object is visibly indicated. The unit must be manually reset after a trip condition before testing can be resumed. The unit is supplied in a compact, portable case with a permanently connected 2 metre long HV output lead.