Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of power factor tester in China. If you're going to wholesale durable power factor tester, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
Application Scenarios
Power Factor Tester can perform precise testing on the insulation status of various test items in the power system, such as transformers, instrument transformers, capacitors, cables, surge arresters, etc. It can detect problems such as aging of insulation components and local defects.
Parameter
|
Parameter |
Specification |
|
1. Measurement Accuracy |
|
|
Capacitance Accuracy (Cx) |
± (reading × 1% + 1pF) |
|
Dielectric Loss Accuracy (tgδ) |
± (reading × 1% + 0.00040) |
|
Anti-interference |
Frequency conversion anti-interference; above accuracy maintained even under 200% interference |
|
2. Capacitance Range |
|
|
Internal Voltage Mode |
3pF ~ 60,000pF / 10kV |
|
External Voltage Mode |
3pF ~ 1.2μF / 10kV |
|
Resolution |
Up to 0.001pF, 4 significant digits |
|
tgδ Range |
Unlimited; resolution 0.001%; auto-identifies capacitance, inductance & resistance samples |
|
Test Current Range |
10μA ~ 5A |
|
3. Internal Voltage Source |
|
|
Voltage Range |
0.5 ~ 10kV (continuously adjustable) |
|
Max Output Current |
200mA |
|
Voltage Adjustment |
Continuous & smooth |
|
Voltage Accuracy |
± (1.5% × reading + 10V) |
|
Voltage Resolution |
1V |
|
Test Frequency |
45 ~ 65Hz integer frequency |
|
Frequency Accuracy |
±0.01Hz |
|
4. External Voltage & CVT Mode |
|
|
Max Test Current (Upright Wiring) |
1A / 40 ~ 70Hz |
|
Max Test Current (Reverse Wiring) |
10kV / 1A / 40 ~ 70Hz |
|
CVT Self-Excited LV Output |
Voltage: 3 ~ 50V |
|
Measuring Time |
Approx. 30s (varies by test method) |
|
5. General Specifications |
|
|
Input Power |
180V ~ 270VAC, 50Hz/60Hz ± 1% |
|
Communication Interface |
Standard RS232 interface (optional) |
|
Printer |
Built-in mini thermal printer |
|
Ambient Temperature |
-10℃ ~ 50℃ |
|
Relative Humidity |
< 90%, no condensation |
Features
Strong comprehensiveness, can be connected to an external oil cup for precision insulating oil dielectric loss test
01
Can automatically identify 50Hz/60Hz system power supply, and can also be powered by a generator
02
It has high-voltage protection, low-voltage protection, grounding protection, and also prevents misoperation. It will sound and light alarm when the wrong click is made.
03
The Power Factor Tester has protection features for CVT testing and does not have a 10kV voltage output.
04
Support Waileshanhaoshi standard capacitors to conduct accuracy dielectric loss testsTechnical Specifications
05
FAQ
Q: What is CVT?
A: Capacitive voltage transformer, CVT self-excitation method is used to test this test product
Q: What are the test products of the forward connection method and the reverse connection method?
A: Use the forward connection method to measure the transformer bushing, and the reverse connection method to measure the transformer winding
Q: Can the defects of the test product be judged by just measuring the capacitance value or tanδ value?
A: No, both results must be measured. Only when they are consistent can the insulation status be judged comprehensively and accurately. The capacitance value should be stable at 5%~10% of the factory value.
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