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30KV AC / 42KV DC PROOF TEST SYSTEM IN ONE PORTABLE UNIT

Test engineers and technicians need to proof test cables and switchgear after installation or rework to existing systems. The Adret range of proof testers was designed with simplicity of use and maximum operator safety in mind. The range offers many different models from DC to AC and VLF (very low frequency) as well as combination AC and DC models.
PRINCIPLES OF OPERATION

All the units use the input voltage through a step up transformer to obtain the high AC voltages. In case of DC output the AC is rectified through a suitable rectifier capable of withstanding the high voltages. Some units use a combination of AC and DC that is switched to deliver AC or DC or both. In the case of VLF equipment a pseudo sine wave is produced through a number of switches and resistors.

The outputs are current limited and the unit automatically trips when a set limit is reached. When this occurs the cable is discharged and made safe through a built in discharge resistor. In case the circuit layout does not allow (in case of split units) the automatic discharge of the cable, a suitable manual discharge resistor is supplied The units are portable and simple to operate.

SPECIFICATION

Supply Voltage : 220-240VAC
Supply Current : 8A
Output Voltage : 0-30kVAC, 0-42kVDC
Output Current : 50mA Continuous
Weight : 45kg
Dimensions : 500x500x500mm
Enclosure : Pelican IP67
Voltage Level Adjustment : Continuously variable
Meters : Voltage and Current
Trip Level : 0-50mA Factory Pre-set

ACCESSORIES

Test Cables : 5m HT lead with high Current clamps
Earth Lead : 5m yellow/green
Mains Lead : 2m 3 core

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VISIT US

Adret Holdings (PTY) Ltd

5 Union Street

Roxton

Alberton North

Gauteng

1449

South Africa

TRADING HOURS

Monday-Thursday

7H30–17H00

Fridays

7H30-14H30

Weekends

Closed

CONTACT US

South Africa

Tel: +27 11 907 6473

Tel: +27 11 907 4475

Fax: +27 11 869 7987

sales@adret.co.za

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