Remark: English version is available for all the testers.
Anti-interference inter-frequency dielectric loss tester is widely used by power plants, substations to do the on-site or laboratory's high voltage electric equipment testing of dielectric loss tan delta value and capacitance. The tester is integrated design with built-in dielectric loss testing bridge, variable frequency voltage-regulator power source, boosting transformer and SF6 highly stable standard capacitor.
The high-voltage source is generated by the inverter in the instrument, boosting by the transformer then used to test objects. The frequency can switch to 50Hz, 47.5Hz/52.5Hz, 45Hz/55Hz, 60Hz, 57.5Hz/62.5Hz, 55Hz/65Hz, adopting digital notch technology, avoiding the power-frequency electric field disturbing the testing, solving the problem of strong electric field disturbing the accuracy of testing.
Main Technical Parameters
| 1 |
Using terms |
-15ºC~40ºC |
RH<80% |
| 2 |
Anti-interference theory |
Variable frequency |
| 3 |
Power |
AC220V±10% |
electric generator is permitted |
| 4 |
High voltage output |
0.5kV~10kV |
Per 0.1kV |
| Accuracy |
2% |
| The max current |
200mA |
| Capacitance |
2000VA |
| 5 |
Self-excited power |
AC 0~50V/15A |
Single frequency: 50Hz, 60Hz |
| Auto double frequency: |
| 45Hz/55Hz, 47.5Hz/52.5Hz |
| 55Hz/65Hz, 57.5Hz/62.5Hz |
| 6 |
Resolution |
tgδ: 0.001% |
Cx: 0.001pF |
| 7 |
Accuracy |
△tgδ: ±(reading*0.1%+0.04%) |
| △Cx: ±(reading*0.1% + 1.00pF) |
| 8 |
Measurement Range |
tgδ |
no limitation |
| Cx |
15pF<Cx<300nF |
| Cx(10kV) |
Cx<60nF |
| Cx(5kV) |
Cx<150nF |
| Cx(1kV) |
Cx<300nF |
| CVT testing |
Cx<300nF |
| 9 |
CVT turn ratio range |
10~10000 |
| CVT turn ratio accuracy |
1% |
| CVT turn ratio resolution |
0.01 |
| 10 |
Dimension(host)mm |
350(L) x 270(W) x 315(H) |
| Dimension(attachment box)mm |
350(L) x 270(W) x 160(H) |
| 11 |
Reservation |
200 groups, support U-disk save |
| 12 |
Weight(host) |
22.75kg |
| Weight( attachment box) |
5.25kg |
The main Features of Tester
1. Large LCD screen
2. Large data reservation
3. Advanced datas management
4. Multiple testing modes
5. One-step testing for CVT
6. Test CVT without detaching high-voltage leading lines
7. CVT reverse-connecting shield method to test CO
8. High speed to collect signals
9. Multiple protection, safe and reliable
Company Profile
Wuhan Hezhong Electric Equipment Manufacture Co., Ltd is a high-tech enterprise professionally engaged in R & D, manufacture and marketing of power testing products, instruments, power industry automation systems for 20 years.We export completed set to Korea, Singapore, Vietnam, India, Ecuador, Paraguay, Pakistan, Philippines, Russia, Italy, Austria, Portugal, Chile such as PD test system, impulse voltage generator, temperature rising test system, transformer comprehensive test system, cable fault detect system and varies of instruments for transformer, circuit breaker, switchgear, lightning arrestor, insulator, cable, battery, SF6 gas and so on.
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