Transformer tan delta & Dissipation Factor Tester
Summary
Dielectric loss measurement is a basic method in insulation test and effectively detect damp, degradation and partial defect of insulation of electrical equipment. This method is widely used in electric manufacturing, electric equipment installation, connection and preventive test. Measurement on dielectric loss of transformer, mutual inductor, reactor, capacitor, bushing and arrester is the most basic method to test their insulation property.**** fully-automatic anti-interference dielectric loss tester breaks through the traditional bridge testing method and adopts variable frequency power technology, single chip and modernized electrical technology to carry out automatic frequency shift, analog-to-digital conversion and data computing. It features strong anti-interference capacity, high test speed, high precision, automatic digitization and easy operation. It adopts high-power switching power supply, which outputs 45Hz and 55Hz pure sine wave and automatically increase the voltage to a maximum value 10 KV. It can filter 50Hz interference automatically, and it is applicable to the site test of substation and other places with large electromagnetic interference. This methods is extensively applied in dielectric loss measurement of transformer, mutual inductor, reactor, bushing, capacitor, arrester and others equipments in power industry.
Technical indicators
Accuracy: Cx: ±(reading×1%+1pF)
tgδ: ±(reading×1%+0.00040)
Anti-interference: Variable frequency anti-interference, the above accuracy can be reached under 200% interference.
Capacitance range: Internal HV: 3pF~60000pF/10kV 60pF~1μF/0.5kV
External HV: 3pF~1.5μF/10kV 60pF~30μF/0.5kV
Resolution: Maximum 0.001pF, 4 valid figures.
tgδ range:unlimited, 0.001% resolution, automatic identification for capacitance, inductance and resistance of three tested articles.
Test current range: 10μA~1A
Internal HV: Set voltage range: 0.5~10kV
Maximum output current: 200mA
Buck-bust method: continuous stepless regulation
Test frequency: 45, 50, 55 single frequency 45/55Hz automatic dual variable frequency
Frequency accuracy: ±0.01Hz
External HV: In case of UST, maximum test current is 1A,and power frequency or variable frequency is 40-70Hz
In case of GST, maximum test current is 10kV/1A,
and power frequency or variable frequency is 40-70Hz
CVT self-exciting low voltage output: Output voltage 3~50V,
output current 3~30A
Measuring duration: About 40s, depending on measuring method
Input power supply: 180V~270VAC, 50Hz/60Hz±1%,
supplied by alternating current or generator
Computer interface: Standard RS232 interface
Printer: WH-A7 mini-type thermal printer
Environment temperature: -10ºC~50ºC
Relative humidity: <90%
Overall
dimension:460×360×350mm
Weight:28kg
){kind=link}