Transformer Performance Tester

  • JYM Insulation Resistance Tester
JYM Insulation Resistance Tester

JYM Insulation Resistance Tester

  • Strong anti-interference ability
  • Positive and negative bipolar high voltage output
  • Short Circut Current: >30mA
  • Strong load capacity
  • Product description: JYM Insulation Resistance Tester is used for on-site insulation resistance measurement. The tester​ has built-in positive and negative bipolar high-voltage power supplies, with large output power and

The JYM insulation resistance tester is used for measuring insulation resistance in the field. This instrument features a built-in negative high-voltage power supply, high output power, and a strong load capacity, making it suitable for measuring the insulation resistance of samples with high capacitance, such as power transformers and cables. It employs digital filtering technology for automatic intelligent measurements, ensuring stable data even in the presence of strong interference. Measurement results are displayed on a large LCD screen and can be printed using a microprinter. The instrument can be powered in two ways: through an external adapter or an internal battery, making testing convenient.


Technical Datas:

Test voltage: 500V, 1000V, 2500V, 5000V, 10000V (optional) five output voltage levels.

Voltage accuracy: ± (set value×2%+10V) (when the resistance under test is below 10MΩ, the output voltage will decrease,          down to 45% of the set value).

Short circuit current: not less than 30mA (this index far exceeds the traditional megohmmeter, direct short circuit or short circuit test voltage during measurement may cause instrument protection, special attention should be paid to safety).

Measuring range:  100kΩ~10TΩ

Measurement accuracy:

5% at 100kΩ~10GΩ (test voltage is not less than 250V).

5% at 10GΩ~100GΩ (test voltage not less than 2500V)

10% at 100GΩ~5TΩ (test voltage not less than 5000V)

10% at 100GΩ~10TΩ (test voltage not less than 10000V) (optional)

Anti-interference:  power frequency 5mA

Measurement method: insulation resistance / absorption ratio / polarization index

Wiring method: grounded or non-grounded

Fast discharge: Yes

Measurement time: insulation resistance automatic measurement (press the run/stop button to stop), absorption ratio 60 seconds, polarization index 10 minutes

Input power: external adapter (180V~270VAC).

Computer interface: standard RS232 interface, optional wireless Bluetooth or wireless WIFI communication

Printer: Optional Bluetooth printer.

Ambient temperature:  -10°C~50°C

Relative humidity: <90%, no condensation.

Main functions:

1. Strong anti-interference ability.

Using digital filtering technology, it can still accurately measure under the power frequency 5mA interference current, and the test data is stable, which is suitable for insulation resistance test in the field.

2. Built-in positive or negative high voltage output power supply

The user can choose to configure the positive or negative high voltage output according to the needs.

3. Large short-circuit current

Not less than 30mA (this index far exceeds the traditional microohmmeter, direct short circuit or short circuit test voltage during measurement may cause instrument protection, special attention should be paid to safety).

4. Strong load capacity

The current output of the high-voltage power supply is not less than 6 mA at the 5000V voltage level.

The high voltage power supply has a current output of not less than 3 mA at a voltage level of 10000V.

5. Rapid discharge

The instrument is equipped with an independent discharge circuit, and when testing capacitive samples, the instrument can automatically and quickly discharge the samples.

Note: In order to ensure safety, the test should still be shorted with a short-circuit rod after the measurement.

6. Multi-level security protection to ensure the safety of people and equipment.

High voltage protection: short circuit, breakdown or high voltage current fluctuation of the sample, cutting off the output at high speed.

7. Chinese and English menus are optional, large screen backlit LCD display.

8..Optional thermal printer.

9. With USB interface.

10. with computer interface.

Through this interface, measurement, data processing and report output are realized. One computer can control 32 instruments and can be integrated into the integrated high-voltage test vehicle.

11. Power supply

This instrument provides two power supply modes, external adapter (180V~270VAC mains power or generator power supply), internal power supply for lithium battery. When the external power supply is turned on, the instrument automatically selects the AC power supply mode for testing, and when no external adapter is connected, the instrument uses internal battery power supply.