Year1
- 参数：
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- 参数：
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- 参数：
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1. Application scope
It can be applied to the voltage reduction soft start, soft stop and protection of high-voltage squirrel cage (synchronous) motors in the power range of,,,, and even higher power. This device is widely used for starting fans, water pumps and compressors in building materials, metallurgy, petroleum, pharmaceuticals, water conservancy, electric power, chemical industry and other industries.
2. Working Principle
D series high-voltage squirrel cage (synchronous) motor electro-hydraulic starter uses an aqueous solution of a special medium as a resistor, and introduces plates into a specially designed high-voltage liquid resistance box as electrodes in series with the motor. When the motor in the stator circuit is started, a small power servo motor drives the pole plates to move to change the relative position of the pole plates, so that the resistance of the liquid (serially connected to the stator circuit) changes steplessly from large to small, so that the motor starts smoothly with low current.
3. Performance characteristics
Constant current soft starting performance: During the starting process, the current remains basically unchanged and becomes .-. times of the rated current
. The power factor is high and approximately constant during starting, generally .Above
, large thermal capacity, can be started continuously without being burned
, smooth starting: the starting torque of the motor gradually increases from small to large, making the mechanical equipment start smoothly without impact, whistling, and Mechanical equipment can smoothly cross the resonant speed to protect the equipment from damage
. It has little impact on the power grid and the voltage drop of the power grid is within % when starting
. It has complete alarm prompt function and motor protection function that is safe and reliable
, Simple structure, reliable installation, easy maintenance
4. Technical parameters
, Rated voltage. .
, Withstand voltage (/) // (relative to ground) (phase to phase)
, starting current multiple
, starting time--(adjustable)
, electro-hydraulic normal operating temperature (℃)
, number of consecutive starts (times)
, cabinet protection level
5. Implementation standards
, - AC metal-enclosed switchgear
, D squirrel cage (synchronous) motor electro-hydraulic starter/
6. Conditions of use
, surroundings Air temperature: (--+)℃
, Relative humidity: %
, Height of elevation:
, No significant shaking and shock vibration in the installation site, No corrosive gas installation inclination
7. Ordering Instructions
* Provide the motor model, rated power, rated voltage, rated current, stator connection (, △) and whether the star point can be opened
* Provide the load characteristics and operating conditions of the motor
br/> * Inlet and outlet methods of starting cabinet and star point short-circuit cabinet or high-voltage starting control cabinet
* Whether to order a complete set or separately. The complete set includes: high-voltage motor liquid starting cabinet, high-voltage starting control cabinet (or star point short-circuit cabinet) Connection cabinet), high-voltage operation cabinet
* Indicate the cabinet type of high-voltage starting control cabinet and high-voltage operation cabinet (,,,, etc.)
* Indicate other special requirements.
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