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|Rated Voltage:||6kv 10kv 11kv||Phase:||Three Phase|
three phase surge arrester,
electrical surge arrester
TAVF series High Voltage Vaiable - Frequency Drive / HV Speed Governor
The composition of the different converter component parts: Transformer cabinet,Power cabinet, Bypass ark, Control cabinet were detailed described and realized.
1. Adopt multi-level module series voltage type variable-frequency speed control system, input and output 6kV, 10kV directly, and needn’t output transformer; can drive normal three-phase asynchronous motor directly, and have no special requirements to motor insulation.
2. High power factor, up to 0.96 or above, and needn’t power factor compensation device.
3. The whole system efficiency of frequency converter device (including input isolation transformer) is up to 96% or above, and the efficiency of transformer is up to 98% or above.
4. Small current harmonics, and needn’t harmonic suppression device.
5. The rectified phasing transformer adopts dry-type transformer, and the insulation level is H.
6. Power unit modular design, can draw out, remove and maintain from frame easily, and all same type of unit can exchange.
7. Can realize motor soft start, no impulse current, can reduce mechanical wear, extending motor life.
8. Support DCS control mode
9. The frequency conversion device can carry out remote operation, and can make DCS/local control box/local control switch.
10. Support various communication protocol of MODBUS, PROFIBUS and so on, and can communicate with upper computer.
11. The HV main circuit and controller adopt fiber-optic communication, having high anti-interference, safety and reliability.
12. Perfect fault monitoring, accurate fault protection, exact location display and alarm.
13. Transient power out and restart
14. Power frequency conversion both way automatic switchover on line
Allow user carry out mutual switchover between non-disturbed power frequency and frequency conversion without stopping, ensuring the equipment running continuously.
15. Have high adaptive capacity to power grid
Can ensure full load output when -15%N～+15% network voltage waving, and can bear the network voltage reducing of 30%, and running.
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