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| Fax:86
571 8806 2934 |
| Phone:86
571 8808 6586 |
| Address:122
Xueyuan Road, Hangzhou, China |
| postcode:310012 |
| [Email
us] |
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GC high oil-pressure
hydraulic operator
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GC
high oil-pressure hydraulic operator adopts the modern
hydraulic pressure technology under the computer-based
control system for application at unit starting, paralleling-in,
load increase or decrease for SHP. It can safely close
the wicket gate in emergency. With the simple structure,
high reliability, excellent performance, GC is an easily
operated and maintained operator. It's suitable for
hydropower stations without frequency-regulation requirement.
The main features:
1. Use standard hydraulic parts like the
high-pressure gear pump and the hydraulic valve to ensure
its high reliability in operation
2. High working pressure (up to 16Mpa),
small size and light in weight
3. The bag-type energy storage is adopted,
and the nitrogen inside the bag does not directly contact
the oil as to protect the oil quality. There is little
leakage of nitrogen, thus no need for nitrogen compensation
4. The return oil box is separated from
the pressure oil tank and the governor shaft is not
needed, which simplifies the powerhouse layout
Functions:
1. The hydraulic servo-motor works according
to the incoming signal for close or open, and the servo-motor
will be in still state when there is no incoming signal
2. The hydraulic servo-motor will quickly
move to the full closing position in case of receiving
the emergency incoming signal or the loss of power supply.
3. Oil pump can be manually or automatically
controlled by the switch-on of control panel.
4. The pump motor is relay protected. When
the motor is over loaded, the temperature relay triggers
and the circuit breaker will be tripped to cut off the
power supply. |
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