Contact Resistance Cum Circuit Breaker Tester

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The contact or winding resistance is measured on the principle of voltage drop. A specific DC current is passed through the equipment under test, indicated by the ammeter and the potential drop across the contact / winding is measured by the millivoltmeter. The resistance is obtained by dividing the mV drop by the current. The instrument comprises of a variac, a loading transformer, a rectifier, the ammeter and the milli-voltmeter alongwith necessary terminals and switches, housed in an insulated moulded cabinet.

Specifications:

• 0.1 micro: 19.999 milli-ohms at 100 A
• 1 micro: 199.99 milliohms at 10 A
• Input: 230 V, 1 Phase, 50 Hz.
• Outputs: 0-100 A DC OR 0-10/20 A DC, continuously variable. (Two current outputs)

Metering:

• 4 ½ Digit Millivoltmeter, Range: 0-19.999 mV DC
• 3 ½ digit Ammeter, Ranges : 0-100 A DC.
• Display: LED with HOLD facility
• Housing: VIP/ALFA suitcase.
• Weight: 25 kgs. Approx

Accessories:

• AC mains connecting lead, 3 meter long.
• Pair of connecting leads suitable to carry 100 A, 10 meter long.
• Pair of connecting leads to measure voltage drop, 10 mtr. long.

Note:

• Equipment may be supplied with specification differing from that described above due to continuous development in the electrical and mechanical design

Product Price :Get Latest Price

Product Details:

The contact or winding resistance is measured on the principle of voltage drop. A specific DC current is passed through the equipment under test, indicated by the digital ammeter and the potential drop across the contact / winding is measured by the digital “millivoltmeter” and calibrated as micro-ohm-meter. The instrument comprises of a DC power supply, the ammeter and the micro-ohm-meter along-with the necessary four terminals and switches, housed in a moulded “VIP” type suitcase. Two pairs of current & potential leads are provided for measurement.Technical Specifications µ Ranges 0.1 micro – 1,999.9 micro-ohms, resolution – 0.1Input 230 V, 1 Phase, 50 Hz.Output Current - 100 A DC ( Open Circuit Voltage – 5 V. )Metering 4 ½ Digit Micro-ohm-meter. 3 ½ Digit Ammeter, Range 0-100 A DCDisplay LED Housing Moulded suitcase “VIP” type – 18” x 12” x 6” approx. Weight11 kgs. Approx. Accessories AC mains connecting lead, 1.5 meter longOne pair of connecting leads suitable to carry 100 A, 10 meter long and one pair of connecting leads to measure resistance, 10 meter long. Note Equipment may be supplied with specification differing from that described above due to continuous development in the electrical and mechanical design