Article List

• What are the main items of power transformer test?

  The test items for power transformers shall include the following:1. Insulating oil(transformer oil) breakdown voltage test ;2. Measure the DC resistance of the winding together with the bushing;3. Check the voltage ratio of all taps;4. Check the three-phase wiring group of the transformer and the p

  Hot Product Promotion May 26, 2022
• 12 Sets Electrical Testing equipment Ready for shipment

  We won a tender in Pakistan on April 12 . Which includes Six (6) sets GDYJ-501 80kV Transformer Oil BDV Tester and Six (6) sets GDJ-5KVA/100KV AC DC Hipot Tester. last Friday we already completed the production. They will be shipped to customer soon.GDYJ-501 is used to measure breakdown voltage valu

  Company News April 26, 2021
• New design GDB-P Transformer Turns Ratio Tester TTR Tester ready for shipment

  Last week we completed the production of GDB-P Transformer Turns Ratio Tester for our customer. GDB-P is portable type, the net weight is only about 7KG. Built-in high capacity chargeable lithium battery. It can works with 220V,50/60Hz too. Some customers told us that many transformers are on site.

  Company News December 30, 2020
• GDJB-III Single Phase Relay Protection Tester Ready for shipment

  Today we shipped one set GDJB-III Single Phase Relay Protection Tester to our customer.GDJB-III Single Phase Relay Protection Tester is used to adjust and test relaying protection tester of power supply system. The DC voltage output is 0~350V continuous adjustable, output capacity:960VA.The DC curre

  Company News July 12, 2021
• Five Sets Electrical Testing Equipment ready for shipment

  At the beginning of February, we completed the production of 5 sets equipment. Which includes GDGS Transformer Tan Delta Tester,GDRZ-902 Transformer SFRA,GDGK-307 Circuit Breaker Analyzer,GDBR-P Transformer On Load and No Load Tester and GD-II Metal Oxide Surge Arrester MOA Tester. With the end of t

  Company News February 20, 2021
• GDZC-20A Transformer Winding Resistance Tester ready for shipment

  At the beginning of August, we received an inquiry from a customer in Ecuador for a transformer winding resistance tester.

  Company News October 11, 2021
• GDYJ-502A 80KV Transformer Oil BDV Tester Ready for Shipment

  GDYJ-502A 80KV Transformer Oil BDV Tester is used to measure breakdown voltage(dielectric strength) in transformer oil. The output voltage is 0-80kV. The test standards are IEC60156, IS6792, BS5874, ASTM D1816 and ASTM D877. It's touch screen. It can also measure oil temperature during test.Click to

  Company News May 16, 2022
• ZJA-3KY 3000L/H Transformer Oil Purifier and GDYJ-502A 80KV Transformer Oil BDV Tester are ready for shipment

  1 set of ZJA-3KY 3000L/h Transformer Oil Purifier Filtration Machine is ready for shipment.This machine is customized with some optional parts as below:1. mounted on trailer2. with closed-door3.equip with diesel generatorIn addition to the ZJA-3KY Transformer Oil Purifier, the customer also purchase

  Company News April 29, 2022
• What are the factors that affect the measurement error of the current transformer CT?

  The measurement error of the transformer is related to the impedance of the secondary circuit. The increase of the impedance will increase the error, and the accuracy will decrease. Therefore, the external impedance is a key factor in determining the exact level at which the current transformer oper

  Industry News April 21, 2022
• A Transformer Oil Lab Ordered 8 Sets Equipment

  A Transformer Oil Lab placed an order with us on July 11. Total 8 equipment. which includes: GDYJ-502A 80KV Transformer Oil BDV Tester,GDGY Transformer Oil Tan Delta Tester,GC-7890-DL Transformer Oil Dissolved Gas AnalyzerGD-2100 Karl Fischer Moisture Titrator(Coulometric method)GD-6541A Automatic I

  Company News August 02, 2019