Now we have promotion activity as below:

1. Buy any Kingrun tester, will get a KEW2200 clamp meter for Free!!

2. You will get 5% discount by online inquiry(just click the green”INQUIRY”bottom and put into your specific inquiry).

3. 2 Years warranty period. Whole lifetime maintenance.

4. 24h online technical support.

The function of magnetic assistant matrix and option matrix is added to JYR 20E Transformer heat run winding resistance tester on the base of JYR DC Resistance Tester (20D)、(40D,), the wiring is simplified, the magnetic assistant and option items can be finished by one time of wiring. The demagnetization function is added, and the residual magnetism of the transformer after contentment is reduced. The DC resistance measuring range is extended from the original 0～130 Ω to 0～40 kΩ. The instrument also can measure the resistance of the transformers and instrument transformer with high resistance, to realize one instrument with multiple usages.

Function Introduction

● JYR 20E Transformer heat run winding resistance tester is suitable for DC resistance test and temperature rise test of 240MVA and below transformers.

● With the third constant current source technology, the measuring rang is from 0 to 40 kΩ.

● Operated by touching the colorful screen, the operation is more simple.

● The two channels can be tested simultaneously.

● JYR 20E Transformer heat run winding resistance tester with function of magnetic assistant matrix and option matrix

● With the function of residual magnetism.

● The accuracy is improved, the minimum resolution can reach 0.01 µΩ.

● The interval time during the heat run test is 10s, 30s and 60s for option.

● Automatic print timing.

● The data can be stored automatically and timing.

● The U disc interface make the data can be exported to the computer for forming the temperature rise curve.

● With the RS485 communication interface, the instrument can be operated by the computer.

● JYR 20E Transformer heat run winding resistance tester With the temperature rise test software, the data can be processed automatically.

● With the anti-arcing protection function for the inductive tested products.

● With AC380V mis-connection protection function.

● With the discharging alarm by sound and the discharging indicating clearly function.

TECHNICAL SPECIFICATION:

Type	20E	40E
Output current	20A, 10A, 3A, 1A, 0.3A, 25mA	40A, 20A, 10A, 3A, 1A, 0.3A, 25mA
Range	0～40 kΩ	0～40 kΩ
Accuracy	0.2%±0.2 µΩ	0.2%±0.2 µΩ
Min. Resolution	0.1 µΩ	0.01 µΩ
Output voltage	DC50V
Timing of temperature rising	10s, 30s, 60s for option
Operation power	AC220V±10%, 50 Hz±1Hz
Operation temperature	-20℃～40℃
Relative humidity	≤80%RH, no dew
Volume	L445mm * W370mm * H210mm
Net weight	15.7 kg

The main operation interface for temperature rising testing:

Temperature Rising Curve: