Article List
- What are the ratio and phase angle error of current transformer?The error of current transformers is divided into ratio error and phase angle error:The ratio error is the current value indirectly measured through the secondary circuit (KeI2 minus the percentage of the actual value of the primary current to the actual value of the primary current). That is, the pHot Product Promotion July 26, 2024
- What’s the ZJ Series Vacuum Pump Unit for big transformer?What’s the ZJ Series Vacuum Pump UnitThe Transformer Vacuum Pump Unit is mainly used to extract gas from the container, so that the container can meet high vacuum requirements, and can also be used for vacuum drying. Especially suitable for vacuum pumping in the substation industry, power supply burHot Product Promotion July 02, 2024
- CHONGQING GOLD GDVA-405 CT PT Current Transformer Analyzer ready for shipmentThis week we completed the production for GDVA-405 Automamtic CT PT Analyzer and already arranged the shipment to our customer yesterday.GDVA-405 Automatic CT PT Analyzer is used to measure CT PT(220V-500KV,>2.5VA). The test standards are IEC60044-1,IEC60044-2,IEC60044-5,IEC60044-6,IEC61869,IEEE C57Company News June 20, 2024
- ZGF-60KV 5mA DC Hipot Tester ready for shipmentZGF Series DC Hipot Tester is used to complete DC voltage test and leakage test of zinc oxide surge arrester, magnetic arrester, power cable, transformer, generator and other equipment , It can also be used for electrostatic dust, spray and others.Here different output voltage can be customization:Company News June 13, 2024
- VLF-30KV AC Hipot Tester ready for shipmentLast week we arranged the shipment about VLF-30KV AC Hipot Tester to our customer.VLF-30KV AC Hipot Tester is used for power cables ac hipot test.For 10KV cable test, should be single-phase test, voltage set as 18KV, frequency set as 0.1Hz(recommended), 0.05Hz(recommended), 0.02Hz(the process of volCompany News June 11, 2024
- How to use GDGK-307 High Voltage Switch Characteristic Tester to Evaluate the Synchronicity of Circuit Breakers?The GDGK-307 high-voltage switch characteristic tester evaluates the synchronization of circuit breakers through multi-channel testing, accurate characteristic curves and analysis calculation functions, high-speed data acquisition and analysis processing capabilities, etc.In the power system, the syCompany News May 29, 2024
- CHONGQING GOLD GDBC-901 Single and Three Phase Transformer TTR Tester ready for shipmentYesterday we just shipped one set GDBC-901 Transformer turns ratio ttr tester to our customer.This TTR Tester is suitable for testing both single phase and three phase transformer.The max test voltage is 80V,ratio measurement range is 1-10000. You can also connect PC to download the test results.WelCompany News May 23, 2024
- The Principle of low-frequency method for measuring the excitation characteristics of current transformersWhat's the principle of low-frequency method for measuring the excitation characteristics of current transformers?Excitation characteristic test is the most commonly used and effective method for detecting the performance of protective current transformers.The composite error of current transformersHot Product Promotion May 10, 2024
- ZJA-2KY 2000L/H Double Stages Transformer Oil Purification Machine ready for shipmentEnd of March, we received an order about ZJA-2KY 2000L/H Double Stages Transformer Oil Purification Machine from our regular customer. After a month of effort from the production department, we completed production by the end of April. We are currently ready to wait for the customer's shipping instrCompany News May 08, 2024
- Successfully Completed the Acceptance Work of NGCP on GDGK-307 Circuit Breaker AnalyzerAt the invitation of the NGCP project department, our engineer went to Manila and Cebu in the Philippines to provide the second training and acceptance work on GDGK-307 Full Automatic Circuit Breaker Analyzer.This batch of GDGK-307 Full Automatic Circuit Breaker Analyzer customized computer controlCompany News April 24, 2024