Transformer Dielectric Loss(Tan Delta) Tester 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. The method is extensively applied in dielectric loss measurement of transformer, mutual inductor, reactor, bushing, capacitor, arrester and others equipment in power industry.

Features

1. Please read this manual carefully before using the instrument.

2. Operator of this instrument should be equipped with the knowledge of using general electrical equipment and instrument.

3. This instrument is suitable for both indoor and outdoor use and should be kept away from rainwater, corrosive gas, thick dust, direct sunshine and so on.

4. The instrument should avoid severe vibration.

5. Maintenance, care and regulation of the instrument should be conducted by professionals. 

6. Connect the grounding terminal of the instrument with the ground by a ground wire in a reliable way before any wiring.

7. As the testing equipment may produce HV, the testing personnel should abide by the safety operation specification strictly to prevent others from contacting high-voltage component and circuit. Personnel who are directly engaged in testing must exactly understand the high-voltage test circuit as well as key points for operation. People other than testing personnel must keep away from HV testing area and the testing area should be clearly marked with fence, rope or warning sign.

8. Adjustment and maintenance of the instrument should be conducted in a no power-up state. Jf power-up is required, the operator must be familiar with the high-voltage hazardous components of this instrument very well.

9. In case that the fuse is broken, replace it with another identical fuse. Any fuses of different models or direct use in short circuit is forbidden.

10.  In case that the instrument breaks down, turn the power off and check it one minute later.