E-mail: sales@hopufiltration.com
Product Description
HOPU HJD-A Anti-interference dielectric loss measuring instrument adopts modern technology to achieve automatic frequency conversion, analog-digital conversion and calculation, features strong anti-interference ability, fast test speed, high precision, automation, easy operation. Its high-power switch supply can output 45Hz and 55Hz pure sine wave, boost automatically with voltage up to 10kV. As the power frequency disturbing can be eliminated, it is suitable for field test in power plants or other places with strong electromagnetic interference, now widely used for dielectric Loss factor (tgδ) measurement of transformer, bushing, capacitor, arrester and other equipment.
The instrument can measure non-grounded and grounded high-voltage electrical equipment with positive and inverse wiring methods.
The instrument is equipped with high-voltage boosting transformer, and has taken zero-passage closing, lightning protection and other safety protection measures. It outputs voltage of different grades ranging from 0.5kV to 10kV during test, which ensures simple and safe operation
Features
1. Complex number current method to measure capacitance, tgδ, and other parameters. Auto, High accuracy
2. Reliable measuring data in heavy electromagnetic interference environment
3. Large screen LCD display, menu prompts, easy reading and easy operation
4. Microprocessor control, auto measurement ( after choose measuring methods)
5. Compact structure with standard capacitor and high voltage power supply inside, easy wiring.
6. High accuracy, oil dielectric loss measurement to be done by matching with oil cup and test lines
7. CVT self-excited test function, one time measurement to get C1, C2 capacitance and dielectric loss
8. Grounded specimen test adopts ivddv technology to get stable measurement data
9. Low-voltage shielding function, when 220kV CVT bus is grounded, C11 can be disconnected for 10kV GST
10. HV (+10kV) dielectric loss factor test function ( after match with HV transformer or resonance devices)
11. Grounding protection function, over current protection function
12. Electric shock protection function, auto cut off power when operator accidentally get an electric shock.
Accuracy | Cx: ±(readingx%+1PF), Tgo: ±(reading%+0.00040) |
Anti-interference index | within 200% |
Capacitance range | Internal HV: 3PF-60000PF/10kv 60PF-1UF/0.5kv |
External HV | 3PF-1. 5PF/10kv 60PF-30]F/0. 5kv |
Resolution | Maximum 0.001PF, 4 valid figures |
voltage setting range | 0.5-10kv |
Maximum output current | 200MA |
Measuring duration | About 40s, depending on measuring method |
Printer | WH-A7 mini-type thermal printer |
Overall dimension | 460x360x350mm |
Your inquiry will be replied within 12 hours.
Please contact for more technical details and latest price:
Skype ID: joanna15023
Email 1: oilpurifier@hotmail.com
Email 2: sales@hopufiltration.com
Mob: 0086 139 8312 6457 (what's App for online inquiry)
Tel: +86 23 62538144
QQ:1203831161
Website: www.hopufiltration.com
Branch 1: www.oilfiltration123.com
Branch 2: www.oilpurifiertech.com
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