Active Member
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[China]
Address: 1st Floor, Block B, Innovation Park, Changzui Science and Technology Park, Sixth High-tech Road, Jiangxia District, Wuhan City, Hubei Province
Contact name:Jason
Wuhan Rising Electric Co., Ltd. |
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Automatic Comprehensive 22kV Capacity 2000kVA Transformer Routine Testing Equipment for Laboratory or Workshop
The design specification for the comprehensive test system of transformer lab
1 The system is safe and reliable and it should be easily operated.
The whole system gives consideration to both the safety of the operator and the reliability of the equipment.
Complete protection function to overvoltage, overcurrent etc.
Reasonable space layout with the clearly defined wires.
2 High-efficient system
The test result is inputted directly to the microcomputer to calculate with full use of microcomputer data processing technology, which avoids a lot of trouble to calculate manually. The external wires were arranged uniformly to avoid the manual connection to the lines. When replacing the wires, only need to use control buttons to finish the process automatically.
3 Humanized operation system
Make the full use of mechanical and electrical interlock, with combination of computer software, to prevent misoperation. Any operation not conforming to safety operation procedure will be denied by the system so as to protect the operator and the system effectively.
4 Reliable operation system
There are two operation mode, manual operation and automatic. Manual operation is usually adopted when automatic operation mode is failed to run, which won’t affect the normal test.
5 High test precision
The measurement accuracy of the system is higher than the national standard no matter measuring apparatus, meters or instrument transformers.
6 Real-time video monitoring (not taking into consideration temporarily)
Running real-time video monitoring with professional camera and transferring the video signal to the monitor room, which will make the test performer have a good command to the on-site status.
Key components of the project (please refer to the table for the configuration)
■The comprehensive test system of transformer
■AC and induced over voltage withstand test system
■The commonly used instrument (according to the requirement of customer)
4) Special transformer (need to inform detailed capacity and voltage level when ordering).
Test item:
1) Transformer winding resistance test
2) Transformer voltage ratio measurement and connection group number test
3) Transformer no-load current (%) and no-load loss test
4) Transformer short circuit impedance (%) and load loss test
5) Transformer power frequency applied pressure test
6) Transformer induced withstand voltage test
Extensible test project:
1) Transformer partial discharge test
2) No-load harmonic test (0-31th harmonic)
3) Withstand voltage test of transformer oil (0-80Kv)
4) Transformer temperature rise test (can automatically draw temperature rise curve)
5) Insulation resistance test (absorption ratio and polarization index)
6) Transformer anti-interference dielectric loss test
7) Lightning impact test.
Performance indicators:
1. Tested transformer parameters
1.1 Transformer capacity under test (to meet temperature rise test condition, dry type transformer)
10kV level ≤2500KVA
35kV level ≤6300kVA
1.2 Tested transformer voltage level below 35kV on primary side
2. Accuracy
2.1 Voltage Range 0-22kV
2.2 Current Range 0-400A
2.3 Minimum voltage resolution 0.001V* PT ratio
2.4 Minimum current resolution 0.0001A*CT ratio
2.5 Power Minimum Resolution 0.1W*PT Ratio*CT Ratio
2.6 Ambient temperature -10~45°C
2.7 Using Relative Humidity 85%
