OVERVIEW
- The stable operation of the transformer is paramount in the power system. The OTLC on the load tap changer, the only moving part connected to it, is called the “key hub. ” Its testing has attracted considerable attention. Precise checking of the sequence of action and measurement of the switching time is crucial for ensuring the reliability of power transmission.
- Our Wrindu OTLC on load tap changer is highly intelligent. It can accurately measure the transition waveform, transition time, instantaneous transition resistance value, and three-phase simultaneity of the switch. It also presents electrical changes with visual waveforms and provides a basis for judging the switch state.
- Operation, English menu prompts, compact size, lightweight, easy to carry, strong anti-interference ability, complex environment can also be accurate results, and effectively reduce the burden on personnel, is the power supply units and transformer manufacturing enterprises to ensure safety and improve the quality of the ideal choice.
CHARACTERISTIC
- 1. The OTLC on load tap changer output current is large, lightweight, easy to carry and operate;
- 2. Support testing YN, Y, △ type transformer, resistance value without conversion directly display;
- 3. It can be measured in the state with or without windings;
- 4. The waveform display can automatically adjust the amplitude of resistance and time values according to the sampling value;
- 5. Equipped with perfect protection circuit, strong reliability, and safer use;
- 6. 7-inch large LCD, convenient for on-site viewing and operation;
- 7. 500 data groups can be automatically saved internally, supporting a U-disk connection to export data.
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FAQ
Q: How do you test an OLTC transformer?
A: Detect OLTC contact degradation by measuring winding resistance at all tap positions. Use DC and read the voltage drop across the winding for assessment.
Q: What is the difference between OLTC and Octc?
A: An On-load Tap Changer (OLTC), also termed an On-circuit Tap Changer (OCTC), is used when a power interruption during tap changes isn’t allowed. Despite being more costly and intricate, it enables tap adjustments without disrupting the power supply.
Q: What are the two types of tap changers used on transformers?
A: Transformer tap changers come in two types: On-load tap changers (OLTC) adjust the ratio. In contrast, the transformer is energized and carrying the load, and de-energized tap changers (DETC) perform change when the transformer is de-energized. Note: Not all transformers have tap changers.
