25 hp soft starter, 18 kW (18.5 kW) three phase 230v, 415v, 480v, 660v affordable motor soft starter direct sale from manufacturer from China.
Delivery date: 6 - 12 Days
25 hp AC motor soft starter, 18 kW three phase 230v, 415v, 480v, 660v motor starter.
||GS2-018 (230v), GS3-018 (415v), GS4-018 (480v), GS6-018 (660v).
||25 hp (18 / 18.5 kw)
||3 phase 230v, 415v, 480v, 660v AC
||Squirrel-cage three-phase asynchronous motor
||It is recommended not to exceed 20 times per hour.
||(1) Operation panel control. (2) Operation panel + external control. (3) External control. (4) External control + COM control. (5) Operation panel + external + COM control. (6) Operation panel + COM control. (7) COM control. (8) No start or stop operation.
||(1) Current-limiting to start. (2) Voltage ramp to start. (3) Torque control + current-limiting to start. (4) Torque control + voltage ramp to start. (5) Current ramp to start. (6) Voltage current-limiting double closed-loop start.
||(1) Soft stop. (2) Free stop.
||(1) Open loop protection for external instantaneous stop terminals. (2) Over-heat protection for soft starter. (3) Protection for too long starting time. (4) Input open phase protection. (5) Output open phase protection. (6) Unbalanced three-phase protection. (7) Starting over current protection. (8) Running overload protection. (9) Under voltage protection for power voltage. (10) Overvoltage protection for power voltage. (11) Protection for fault parameter setting of the soft starter. (12) Load short circuit protection. (13) Auto restart or incorrect wiring protection. (14) Incorrect wiring protection of external control stop terminals.
||Place to be used
||Indoor location with good ventilation free from corrosive gas and conductive dust.
||Below 1000M. It has to increase the soft starter rate power when the altitude is more than 1000M.
||-30 +55 oC
||90%RH without dew condensation.
||Natural wind cooling.
Tips: Soft Starter vs Variable Frequency Drive
A motor soft starter only allows a part of each wave of the available power through to the induction motor, creating an effect similar to a lower voltage start, and increasing that voltage gradually, until the motor has reached normal speed. In other words, the motor is still supplied power at the same frequency at the supply network. This is a much simpler device than a variable frequency drive.
A variable frequency drive, on the other hand supplies a (synthesized) lower frequency to the motor during the start. It attempts to maintain a reasonably constant ratio between this frequency, and the effective voltage supplied to the induction motor. In terms of the effect on the motor this means that with a soft starter, the rotor must be able to handle the same energy during start as it would during a DOL or a Y/D start, but the effect of the supply network is gentler with the soft starter than with DOL or Y/D start.
With a variable frequency drive, the rotor of the induction motor will only have to handle the slip-energy during the start, this energy may only be a fraction of what would be required with the soft starter, while the effects on the supply grid is very similar to that for the soft starter.
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