Dual Canopy Mechanic Electrical Engineering Co., Ltd. is one of the leading manufacturers and suppliers of Power Factor Tester in China. Please feel free to wholesale discount products for sale here and get quotation from our factory. Customized orders are welcome.
What is Power Factor Tester?
A Power Factor Tester (also known as a Dissipation Factor Tester) is a precision instrument used to measure the tangent of the dielectric loss angle (tan δ) and the capacitance (C) of the insulation system of power equipment. By quantitatively assessing the power loss of the insulation medium under AC voltage, it helps users determine the deterioration state of the insulation, such as moisture absorption, aging, contamination, and localized defects.
This instrument is widely used for acceptance testing and preventative testing of transformer winding insulation, bushing insulation, cable insulation, capacitor insulation, and instrument transformer insulation, and is one of the core instruments for insulation condition monitoring in the power industry.
What is instructions Characteristic?
1. Power supply voltage: AC 220V ± 22V 50Hz ± 1Hz
2. Operating environment: Temperature -5℃ - 40℃ Humidity < 85%RH Functional Features
The fully automatic oil dielectric loss tester is a specialized high-tech instrument used for measuring the dielectric loss (tgδ) of various insulating liquids (such as transformer oil, capacitor oil, cable oil, etc.). It is easy to operate and has a high degree of automation.
It is controlled by a microcomputer, with independent measurement and temperature control, and all data processing is carried out automatically.
It has an integrated design, with a small size and light weight.
It features advanced measurement and control technology, with high measurement accuracy and accurate temperature control.
It displays data through a Chinese character liquid crystal display, with a simple menu and automatic printing of measurement results.
What are some common application scenarios?
Handover and Acceptance: Establishing baseline data for dielectric loss before commissioning newly installed equipment.
Preventive Testing: Periodic retesting to identify degradation by comparing historical trends.
Post-Overhaul Re-inspection: Verifying the effectiveness of drying treatment and insulation replacement.
Pre-fault Warning: Insulation status investigation when abnormal temperature rise or oil color changes occur.
Third-Party Testing: Issuing traceable insulation status assessment reports.
Selection Recommendations: Recommended models based on the object under test (transformer/bushing/cable/capacitor), measurement accuracy requirements, on-site interference conditions, and whether a built-in high-voltage circuit is required.
Measurement Scheme Design: Provide typical wiring diagrams (normal/reverse connection), a list of measurement locations, and suggested record templates.
Bushing Testing Recommendations: Provide recommendations on dedicated connectors and lead wires based on bushing type and end-panel structure.
Document Support: Product parameter tables, configuration lists, typical test report samples, and tender documents (to the extent available).
Our address
Baoding Cloud Center, Hebei, China
Phone Number/whatsapp
+86 13483219412
Salesm@dualcanopy.com
FAQ
Q1: Are Power Factor Tester and Dielectric Loss Tester the same thing?
A: Yes, Power Factor and Loss Tangent (tan δ) are equivalent. A Power Factor Tester is a Dielectric Loss Tester.
Q2: At what value does a tan δ indicate an insulation problem?
A: There is no single, absolute standard. It needs to be determined by considering the equipment type, voltage level, historical baseline, and relevant regulations (IEC/GB/DL). A trend of increasing tan δ is more meaningful than a single value.
Q3: What are the appropriate applications for the direct connection method and the reverse connection method?
A: The direct connection method is suitable for test objects where the high-voltage end is not grounded (such as independent bushings and capacitors); the reverse connection method is suitable for test objects where the high-voltage end is directly grounded (such as transformer winding to ground measurement).
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