What is Transformer Comprehensive Test Bench?
The transformer comprehensive test bench is specialized equipment for evaluating the performance of power transformers, capable of conducting multiple electrical parameter tests including no-load losses, load losses, turns ratio, DC resistance, and insulation resistance.
Testing Function：
1. Turns Ratio and Connection Group Testing
Verify whether the voltage turns ratio of the transformer's high- and low-voltage windings conforms to design specifications, while determining the winding connection group (e.g., Yyn0, Dyn11).
2. DC Resistance Testing
Measure the DC resistance values of each transformer winding to assess winding conductor weld quality, winding turn uniformity, and tap changer contact integrity.
3. Insulation Resistance and Absorption Ratio / Polarization Index Testing
Using a high-voltage megohmmeter module, inspect insulation performance between windings, between windings and core, and between windings and casing to assess insulation aging or moisture ingress.
4. Power Frequency Withstand Voltage Test
Simulates overvoltage conditions during transformer operation by applying power frequency high voltage to windings for a specified duration. Tests the dielectric strength of insulation layers and identifies insulation defects.
5. No-Load and Load Characteristic Tests
No-Load Test: Measures transformer no-load losses and no-load current to evaluate core quality and assembly workmanship.
Load Test: Measures transformer load losses and impedance voltage to evaluate operational efficiency and short-circuit withstand capability.
6. Tap Changer Characteristic Test
For on-load or off-load tap-changing transformers, evaluates tap changer performance metrics including switching sequence timing, contact resistance, and switching reliability.
HM5050 Transformer Comprehensive Test Bench
Product Features:
1. Implement full process automation testing based on PLC/SCADA systems, reducing manual intervention.
2. Real time data collection andsynchronization to the cloud.
3.The accuracy of key equipment reaches 0.05 level and the power analysis accuracy is 0.2 level
4. Support customized layout and compatibility withuser made devices (such as power frequency test transformers)
5. High voltage areas are equipped with safety interlocks,emergency stop buttons, and insulationprotection facilities
Application Scenarios
- Factory acceptance testing(FAT) for transformer manufacturers;
- Acceptance testing of newly commissioned transformers by power companies;
- Periodic preventive testing and fault diagnosis of substation transformers;
- Transformer performance testing by third-party quality inspection agencies.
Company Introduction:
Goldhome Hipot is a manufacturer specializing in the production of comprehensive transformer test benches. After over 20 years of dedicated research and development, the company has achieved significant technological breakthroughs and secured more than 20 patents. It is currently a leading enterprise in China's electrical industry.
Welcome to visit the official website www.goldhomehipot of Goldhome Hipot for more details.
