Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of insulation power factor tester in China. If you're going to wholesale durable insulation power factor tester, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
Application Scenarios
Insulation power factor testers are mostly used in electrical equipment, such as power transformers, various instrument transformers, various capacitors, cables and surge arresters, to check whether they are intact before delivery and after major repairs, and to check whether they are still in good working order during the period of use of electrical equipment. This plays a good role in preventing electrical accidents caused by poor insulation.
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
The Insulation Power Factor has a capacitance range up to 60kΩ and a maximum output current of 200mA at 10kV.
01
The instrument has built-in series and parallel dielectric loss test models, compatible with calibration benches and dielectric loss standards, facilitating verification operations.
02
The instrument is designed to prevent misoperation with a two-stage power switch. In case of an emergency, it can quickly reduce voltage and trigger an audible and visual alarm.
03
The Insulation Power Factor's accessories use high-voltage insulated wires, eliminating the need for overhead installation and allowing for floor-mounted use.
04
The Insulation Power Factor's panel is equipped with a thermal printer, enabling on-site printing of test data with clear and noise-free display.
05
FAQ
Q: Are there any requirements for the testing environment? Can testing be performed in high humidity conditions?
A: High air humidity will cause the dielectric loss measurement value to increase abnormally (or decrease, or even become negative) and become unstable. A shielding ring can be added if necessary.
Q: What is the hertz frequency of the generator power supply?
A: The input frequency is unstable when powered by a generator. A fixed frequency of 50Hz can be used.
Q: How many operating modes are available?
A: There are three. After connecting the cables, please select the correct measurement operating mode (forward, reverse, and CVT). Do not select the wrong mode. Especially in interference environments, the variable frequency anti-interference mode should be selected.
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