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DC HIGH VOLTAGE TEST SET NTPL make High voltage testing sets are suitable for testing electrical insulation of condensers, transformers, motors, insulators, cables etc. The sets are capable of giving continuously variable DC HIGH VOLTAGE from zero to maximum rated output voltage. Input Generally, 230 Volts, 50Hz, single phase AC. However, we also manufacture DC H.V. sets workable on other input voltage at extra cost. Output Continuously variable from zero to maximum rated output voltage. Capacity Spread over a wide range of sets from 1 KV to 300KV with current capacity upto 100mA. Sets of higher current capacity can also be manufactured. Duty cycle Intermittent i.e., 5 minutes ON, 10 minutes OFF. However, test sets of continuous or other duty cycles can also be manufactured at extra cost. Metering Output DC high voltage measured by HV resistor chain along with micro-ammeter scaled in kV. Milli-ammeter to measure the leakage current. Digital meters may be provided at extra cost. Protection Overload & short circuit provided. Zero start interlocking along with Overvoltage alarm & indication are provided. Mode of Operation Generally, sets are manually operated. Motorisation facility can be available at extra cost. Units Generally DC high voltage test sets are available in one unit upto 35KV and sets of higher output voltage are commonly manufactured in two units i.e. the control unit & Transformer" Rectifier unit. This Transformer" Rectifier unit are made cascaded type above 80KV. However, NTPL always welcome customers' choice regarding the no. of units. Discharge Rod A discharge rod is provided with the set. DC high voltage is generally obtained by simple rectification of AC high voltage or by multiplication of relatively low AC high voltage by proper multiplier circuits as is found suitable for a particular DC HV test set. HV transformers of the Test Sets are Cast Resin types. While sending enquiry for quotation or order please specify the following :
- Input voltage and frequencys
- Maximum output voltage
- Capacity
- Duty Cycle
- Mode of operation: Manual/Motor operated/ Fully automatic
- Any other details you find important to be specified
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