OLTC Portable Transformer Online Testing on-Load Tap Swith Tester
Introduction:
- OLTC Portable Transformer Online Testing on-Load Tap Switch Tester can record switch operation waveform in the overall process. The longest time is 6.4s.
- It can test various parameters such as transition waveform, transition time, transition resistance, and three-phase synchronization one time and analyze results automatically.
- It has power-off protection, over-voltage protection, a perpetual clock, and high-speed printing.
Features:
- Test transformers of type Y0 Y Δ and display resistance value directly.
- Automatically analyze waveform faults and mark the fault.
- Automatically adjust resistance value and time range according to sampling data.
- Transformer type Δ is able to display to synchronization status of three phases.
- Be able to test with winding or without winding.
- Four terminal connection modes provide high accuracy of resistance measurement.
- Continuous test to save time of power off.
- Make a word report.
- 800×480 colorized LCD with touch screen and high-speed printer.
- Store 1000 groups of data and also can be saved by USB flash disk.
Parameters:
Item Name | OLTC Portable Transformer Online Testing on-Load Tap Switch Tester |
Three-phase constant current source charge | Three-phase constant current source charge |
Maximum voltage of the port | 24V |
Maximum range of transition resistance | 100Ω |
Measuring range | 1A: 0.4Ω~20Ω 0.2A: 10Ω~100Ω |
Record time of waveform | 300ms |
Sample rate | 30k |
Resolution of time | 0.1ms |
Resolution of resistance | 0.1Ω |
Accuracy of transition resistance | ±5% Reading±0.1Ω |
Accuracy of transient time | ±0.5% Reading±0.2mS |
Temperature | -10-40°C |
Humidity | <85%RH |
OLTC Portable Transformer Online Testing on-Load Tap Switch Tester Real Picture:

