High Power High Voltage KV30 and KV50 AC Test Systems

High Voltage Testers

KV30-100 and KV50-100 High Power AC Testers

Features/Specifications

You are here:	Models KV30-100/KV50-100 Features and Specifications
Navigation:	High Voltage Tester Index > T&R Test Equipment Index >

Product Features

T & R Test Equipment High Voltage Testers KV30-100 and KV50-100.

0-30kV (KV30-100) or 0-50kV (KV50-100) output voltage.
3kVA (KV30-100) or 5kVA (KV50-100) output capability.
Key operated supply switch to prevent unauthorized operation.
Dual overload protection.
Variable electronic trip - 10-110% of
rated output.
Voltage and current metering.
External interlock circuit.
Zero-volt interlock.
Visual indication of test piece failure.

Product Description
The KV30-100 and KV50-100 are high power, high voltage ac test systems designed for insulation testing. These systems are equally suited to both development and routine testing of electrical insulation systems and plant.

The equipment consists of a control unit and a separate oil filled high voltage transformer, linked by 5 metre supply and control cables. The control unit is fitted with a comprehensive range of facilities for control, metering and protection. The output voltage and current are displayed on large, linear analogue instruments, and a variable electronic trip is provided, allowing the trip current to be set to 10-110% of rated output.

The high voltage transformer is housed in an oil-filled steel tank fitted with swivel castors for mobility. The units use a high voltage bushing for the HV output, and the other end of the HV winding is earthed. Both the KV30-100 and KV50-100 are equally suited to testing capacitive, resistive or inductive test objects.

If higher voltage or output power is required, please refer to our KV50-200/KV100-100 data sheet, detailing our 10kVA high voltage systems. The
KV50-200 and KV100-100 are also available in low discharge versions.

T and R unit KV100-100 High Voltage AC Test System 100kV/100mA.
KV100-100 100kV Low discharge
10kVA system

KV30-100 and KV50-100 Specification

Output
The output of the KV series units is by a high voltage bushing. The earthy end of the HV winding is connected to earth via the current metering circuit.

Continuous Ratings	KV30-100	KV50-100
Voltage	0 to 30kVA ac	0 to 50kV ac
Current	50mA	50mA
Power	1.5kVA	2.5kVA

Intermittent Ratings (5 minutes ON and 15 minutes OFF)

Intermittent Ratings	KV30-100	KV50-100
Voltage	0 to 30kVA ac	0 to 50kV ac
Current	100mA	100mA
Power	3kVA	5kVA

If you require a different output voltage test system, please contact us with your specification and we will quote for a custom design.

Metering
The output voltage is metered on the primary of the HV transformer, connected to an average-reading dual scaled analogue instrument.

Metering	x0.5 Range	x1 Range	Accuracy
KV30-100	0 to 20kV	0 to 40kV	±2% of FS
KV50-100	0 to 30kV	0 to 60kV	±2% of FS

The accuracies shown for voltage metering are for no-load conditions. Load current is metered in the earthy end of the HV winding by an average-reading analogue instrument.

Voltage Metering	mA Meter	Accuracy
KV30-100	0 to 120mA	±2% of FS
KV50-100	0 to 120mA	±2% of FS

Control
The output voltage is set by a continuously variable output control with a zero volt interlock - the output may only be switched on with the control in the zero position. The output voltage is switched on and off by illuminated push button switches.

The mains supply switch for the unit is a key operated switch. The key is trapped in the switch in the ‘on’ position.

Supply Requirements
KV30-100	230V±10%,	50/60Hz	1ph	3.5kVA max
KV50-100	230V±10%,	50/60Hz	1ph	6kVA max

Protection and Safety
The output of the units are protected by variable electronic trips monitoring the output current, and a fixed overcurrent trip on the primary of the output transformer. The variable trip is adjustable in 10% steps between 10% and 110% of the rated output current.

The input and control supplies are protected by fuses.

The KV30-100 and KV50-100 are designed to meet the requirements of BS EN61010. An earth terminal is provided on the transformer which must be connected to a low impedance local earth.

Interlock Circuits
Two interlock circuits are provided on the kV series test systems. A zero voltage interlock is fitted which prevents the HV output being energized unless the output voltage control is in the zero position. An external interlock circuit is also provided, allowing the fitting of external emergency
off buttons and test cage door interlocks.

Temperature Range
Storage -20°C to 60°C, Operating 0°C to 45°C

Dimensions Weight
KV30-100	Control Unit	370mm (H) x 480mm (W) x 290mm (D)	Weight	25kg
KV50-100	Control Unit	370mm (H) x 480mm (W) x 290mm (D)	Weight	25kg
KV30-100	Transformer	480mm (H) x 460mm (W) x 570mm (D)	Weight	62kg
KV50-100	Transformer	490mm (H) x 520mm (W) x 795mm (D)	Weight	95kg

Accessories supplied with Unit
One 5 meter Power interconnecting lead.
Two 5 meter Metering interconnection leads.
Spare fuse set, and Operating manual.

Optional Accessories
Test duration timer