T&R KV50-20D mk2, Руководство по эксплуатации и техническому обслуживанию

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1. DESCRIPTION OF EQUIPMENT
The KV50-20D MK2 is a 0-50kVac supply designed for testing the insulation and operation of
high voltage substation and industrial equipment. Output voltage and current metering facilities
are provided.
The output is potentially lethal, and the unit must only be operated with the high voltage
transformer in an enclosed, interlocked test area in accordance with EN50191:2001 and other
applicable local standards.
1.1 Electrical specification
1.1.1 Supply requirements
The KV50-20D MK2 has a 115/230V auto-selecting mains input.
Supply requirements: 115/230V

10% 1 phase 50/60Hz 1400VA max
1.1.2 Output specifications
The output voltage, current and duty cycle are as follows:
Unit type Output Voltage
Output current
Continuous 5 min on/15 min off
KV50-20D MK2 0-50kV 12mA 20mA
One side of the high voltage transformer output is connected to the earth system of the
equipment.
1.1.3 Zero voltage interlock
The equipment is fitted with a zero volt interlock system on the output voltage control. This
interlock prevents the output being energised unless the output control is in the minimum output
position.
1.1.4 External interlock and beacons
The KV50-20D MK2 is fitted with a 24Vdc external interlock circuit. This interlock prevents the
output being energised unless an external circuit is closed (such as the door of a test cage).
The interlock circuit may also be used to connect normally closed emergency off switches to the
unit wired in series with any interlock switches.
See section 2.2.4 for connections.
1.1.5 Overload protection
The equipment is fitted with fixed and variable overload protection circuits as standard.