Field & Lab DC Dielectric Test Sets

Portable DC Hipots Line

This product line is used for accurate DC dielectric strength testing of switchgear, cables, motors, generators, and protective equipment/DPI.

Each unit contains an internal discharge device for safe operation, as well as overcurrent protection for both the operator and the specimen.

We offer a line of portable 40-200 kV DC Hipots with many advanced features such as digital high-precision meters, an analog charge current meter, adjustable overcurrent and high current.  

The high voltage is generated by a filtered high voltage doubler circuit built for the exacting demand of high voltage testing.

A solenoid-operated discharge switch quickly discharges the load after testing. All high voltage components are housed in an oil-filled aluminum sealed grounded dead tank. A shielded high voltage lead allows the operator to safely connect the high voltage output to the test object. The high mA charging current allows the operator to quickly and efficiently charge large capacitive loads. 

The precision metering measured off of the high voltage output indicates the output voltage and leakage current on large easy to read digital meters. An analog meter is provided for reading the charging current.

The “B” series, available for the 440-20 and 475-20 models, has a 7” Full-Color Touch-Screen display with auto-ranging current meters plus many additional features.

Additional safety features include instantaneous and thermal overload protection for the operator and the test object.

The proven and rugged design coupled with precision metering and ease of use have made our DC hipots the optimal choice

DC Hipot Design & Safety Features

  • Thermal-magnetic circuit breaker
  • Integrated protection interlock system
  • High Voltage ON/OFF pushbuttons with indicators
  • Zero Voltage Interlock System
  • Manual control of output voltage
  • Adjustable overcurrent circuit with indicator and reset switch
  •  Slow and fast-acting transient protection on all meters and relays
  • Built-in discharge circuit
  • Digital multi-range metering
  • Instruments calibrated to standards certified by NIST (National Institute of Standards and Technology). A label describing the traceability of the instruments is placed on the front panel. A calibration performed by Italian organisations is also available on request.
  • Thermal resettable overload protecting high voltage transformer primary circuits
  • Guard mode for accurate current measurements
  • Very low ripple, <2% RMS at full output
  • Filtered voltage doubling circuit, equivalent to full-wave rectification
  • All control and power leads included
  • Provision for lead housing
  • Calibration certificate
  • Operation / maintenance manual

“B” Models – Design & Safety Features

  • Automatic voltage meter with up to 4 displayed digits
  • Automatic total current meter with up to 5 displayed digits
  • Automatic guard current meter with up to 5 displayed digits
  • Accuracy of ± (0.5% of full scale)
  • 7” Full-color touch-screen display
  • Fault memory voltmeter
  • Maximum voltage reached memory indicator
  • Test duration timer and dwell time at test voltage level
  • Zero Voltage Interlock System
  • Tension up/down with motorised or manual system
  • Adjustable voltage rise rate in v/s
  • Adjustable overcurrent trip point
  • Communication port for data acquisition
  • Status bar for system messages
  • Alarm circuit
  • Calculation of insulation resistance
  • Emergency Off pushbutton (Locking)
  • USB port for data acquisition
  • Return lead safety locking retention clip
  • Shielded test current measurement lead

Environmental Operating Conditions

  • 10-40°C, indoor/outdoor in fair weather
  • Humidity <95% non-condensing
  • Altitude <3300 ft (1000 meters)
MODEL440-20 - 440-20B
475-20 - 475-20B
INPUT

Voltage/Current

110-120 V, 5 A

220-240 V, 3 A

110-120 V, 10 A

220-240 V, 5 A

 

Frequency

50/60 Hz

50/60 Hz

DC OUTPUT

Voltage/Current

Ripple

Polarity

0-40 kV, 20 mA

<2%

negative output, positive ground

0-75 kV, 20 mA

<2%

negative output, positive ground

DUTY CYCLESContinuous Capacitive Charging

20 mA

20 mA

INTERNAL DISCHARGE DEVICE

Internal Discharge Device

3 kJ

6 kJ

DIGITAL METERING

Type/accuracy

Range Voltmeter

Range Currentmeter

Output Charging Indicator

3 1/2 digit, 0.5% of full scale

0-19.99/40 kV

0-19.99 μA / 199.9 μA / 1.999 mA / 19.99 mA

1.5" Analog, 0-100% of selected range indication

3 1/2 digit, 0.5% of full scale

0-19.99/75 kV

0-19.99 μA / 199.9 μA / 1.999 mA / 19.99 mA

1.5" Analog, 0-100% of selected range indication

MODEL4100-104120-10
INPUT

Voltage/Current

110-120 V, 10 A

220-240 V, 5 A

110-120 V, 10 A

220-240 V, 5 A

 

Frequency

50/60 Hz

50/60 Hz

DC OUTPUT

Voltage/Current

Ripple

Polarity

0-100 kV, 10 mA

<2%

negative output, positive ground

0-120 kV, 10 mA

<2%

negative output, positive ground

DUTY CYCLESContinuous Capacitive Charging

10 mA

10 mA

INTERNAL DISCHARGE DEVICE

Internal Discharge Device

6 kJ

12 kJ

DIGITAL METERING

Type/accuracy

Range Voltmeter

Range Currentmeter

Output Charging Indicator

3 1/2 digit, 0.5% of full scale

0-19.99/100 kV

0-19.99 μA / 199.9 μA / 1.999 mA / 19.99 mA

1.5" Analog, 0-100% of selected range indication

3 1/2 digit, 0.5% of full scale

0-19.99/120 kV

0-19.99 μA/ 199.9 μA/ 1.999 mA/ 19.99 mA

1.5" Analog, 0-100% of selected range indication

MODEL4160-54200-5
INPUT

Voltage/Current

110-120 V, 10 A

220-240 V, 5 A

110-120 V, 10 A

220-240 V, 5 A

 

Frequency

50/60 Hz

50/60 Hz

DC OUTPUT

Voltage/Current

Ripple

Polarity

0-160 kV, 5 mA

<2%

negative output, positive ground

0-200 kV, 5 mA

<2%

negative output, positive ground

DUTY CYCLESContinuous Capacitive Charging

5 mA

5 mA

INTERNAL DISCHARGE DEVICE

Internal Discharge Device

12 kJ

12 kJ

DIGITAL METERING

Type/accuracy

Range Voltmeter

Range Currentmeter

Output Charging Indicator

3 1/2 digit, 0.5% of full scale

0-19.99/160 kV

0-19.99 μA / 199.9 μA / 1.999 mA / 19.99 mA

1.5" Analog, 0-100% of selected range indication

3 1/2 digit, 0.5% of full scale

0-19.99/200 kV

0-19.99 μA/ 199.9 μA/ 1.999 mA/ 19.99 mA

1.5" Analog, 0-100% of selected range indication

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