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120kv 5ma HV DC Hipot Tester
120kv 5ma HV DC Hipot Tester application:
The HV dc hipot tester mainly apply to test the high voltage of lightning arrester of zinc oxide, magnetic blow lightning arrester, power cable, generator, transformer, switch equipments and so on .
120kv 5ma HV DC Hipot Tester parameter:
1. power: AC220V+10%, 50Hz+1%
2. Output voltage indicator accuracy: <1%
3. Output current indicator accuracy: <1%
4. Ripple contain factor: <0.5%
5. 0.75 times output voltage indicator accuracy: <1%, can be locked
rating output DC voltage(kV) | rating output DC current(mA) | rating output power(W) | doubler reticfier case height(m) | weight(kg) | |
HZ-60 | 60 | 2 | 120 | 0.5 | 16 |
60 | 5 | 300 | 0.5 | ||
60 | 10 | 600 | 0.5 | ||
HZ-120 | 120 | 2 | 240 | 0.8 | 20 |
120 | 5 | 600 | 0.8 | ||
120 | 10 | 1200 | 0.8 | ||
HZ-200 | 200 | 2 | 400 | 1.2 | 26 |
200 | 5 | 1000 | 1.2 | ||
200 | 10 | 2000 | 1.2 | ||
HZ-300 | 300 | 2 | 600 | 1.7 | 31 |
300 | 5 | 1500 | 1.7 | ||
300 | 10 | 3000 | 1.7 |
FAQ
No. | Questions | Answer |
1 | What are the considerations when using the DC Hipot tester? | Do not overload operation, not too fast lift pressure, continuous use time should not exceed 30 minutes. |
2 | How does the DC Hipot tester connect with different subjects? | 1. When measuring the cable, the current limiting resistance is connected to the u-fork high voltage line. 2. When measuring lightning arrester, use microammeter to connect the cylinder high pressure line. |
3 | What information does the customer need to know about the DC Hipot tester? | If the subject is a cable, it needs to know the voltage level to determine the voltage and the cable length to determine the current. If the test product is a generator, you need to know the voltage level and capacity to confirm. Example: for a general 35kv cable, the length of 600m can be recommended for 3mA/120kv. |
4 | Can the DC Hipot tester not connect the item to be tested and only use the control box and the pressure cylinder to raise the pressure? | Yes, but the ground wire must be well grounded. Do not try the grounding or radiator in the home. It is easy to burn the machine. Also, the top of the double pressure cylinder is screwed with a nut, do not connect the micro-ammeter. It is best to try it on site or in a laboratory where there is a really good grounding. |
5 | Is the microammeter of DC Hipot tester showing high voltage side current? What current does the meter on the control box show? | Both currents are high voltage side currents, and the microammeter is used to monitor whether the current in the control box is normal. If there is no significant difference, it means normal. In general, the current value of the microammeter is different from that of the control box because of the interference of stray current with strong interference. But it is normal that the difference will not be large. |
6 | What happens if the test product fails? | The test data is not accurate, or the voltage may not rise, or even burn the instrument. Because the field voltage is too high, it is easy to burn out the DC Hipot tester if there is bad grounding or wrong operation |
