690v 7.5kW–600kW Motor Soft Starter Three Phase 5060hz For Caged Motor

Short Description:

Motor soft starter is a solid-state device for protecting ac electric motor from damaged caused by the large inrush of current when startup. It could provide a gentle ramp up to full speed when motor start. The motor can smooth starting under any working conditions, protect the drag system, reduce the starting current impact on power grid, ensure reliable motor starting.

The smoothly soft stopping function of without by-pass connector motor soft starter can effectively solve the inertial system surge problem, eliminate the drag system of inertial impact, that is traditional equipment cannot be achieved. Intelligent digital motor soft starter equipment system with the complete protection function, extend the service life of the system, reduce the cost of system cost, improve the reliability of system and compatible with all the functions of starting equipment; It is a new ideal alternative for traditional star triangle starter and self-coupling decompression starter.


Product Detail

Product Tags

Features

Motor soft starters use scr(thyristor)as the main control device. By adjusting the trigger angle of scr to reduce the incoming voltage to the motor.  The current is monitored until the motor reaches to full speed. The thyristors then bypassed by connecting the motor directly to the power supply by ac contactor. Motor soft starter protects motor from damage by the inrush current when startup.

1.The computer simulation design, SMT production process, Good EMC performance.
2.Perfect protection function: No voltage, less voltage, over voltage, over heating, starting time too long, Input phase lost, output phase lost, 3phase unbalance, starting over current, running overload, load short circuit.
3. Fault self-diagnosis(short circuit, over voltage, less voltage, one phase grounded, motor overload, one phase lost, motor blocked, and intelligent software can inspect drag system working state).
4.Combination of modular design, according to the fault display content, quick troubleshooting.

5. Independently software copyright.
6. Motor starting and protection proprietary technology.
7. Unique way to detect debug equipment and process.
8.Reliable performances lay the foundation of qualified service and quality.
9.Provide perfect system solution.
10.The timely and thoughtful Consulting Services.
11.Constantly improve the product performance according to user's opinion

Specification

Power supply AC380V±10%, 50/60Hz
Adaptive Motor Squirrel-cage three-phase asynchronous motor
Starting times It is recommended not to exceed 20 times per hour
Control mode 1) Operation panel control;
2) External control;
3) Communication control;
Start Mode 1) Current-limiting start;
2) Voltage ramp start;
3) Current ramp start;
Stop Mode 1) Soft stop;           2) Free stop;
   

  

 

 

Protective Function

1) Over-voltage protection for power voltage;

2) Under voltage protection for power voltage; 

3) Overload protection;

4) Over temperature protection;

5) Open phase protection;

6) Over current protection;

7) Stall protection;

Display LCD display screen
Start time 1--60s adjustable
Stop time 0--60s adjustable
Protection Class IP00,IP20
Cooling Pattern Natural wind cooling
Place to be used Indoor location with good ventilation free from corrosive gas and conductive dust.
Environment Condition Below 2000M. Rise the rate power when the altitude is more than 2000M.
Ambient Temperature -25+45°C
Ambient Humidity 95%(20°C±5°C)
Vibration<0.5G

Model

Model Voltage Power Current  Dimension(mm) N.W
  (V) (kW) (A) H W D (KG)
NK600-008-3 380V 7.5 15 230 130 128 2
NK600-011-3 380V 11 22
NK600-015-3 380V 15 30
NK600-018-3 380V 18.5 37
NK600-022-3 380V 22 44
NK600-030-3 380V 30 60
NK600-037-3 380V 37 74
NK600-045-3 380V 45 90
NK600-055-3 380V 55 110
NK600-075-3 380V 75 150 296 169 192 5
NK600-090-3 380V 90 180
NK600-110-3 380V 110 220 440 220 185.5 18
NK600-132-3 380V 132 264
NK600-160-3 380V 160 320
NK600-200-3 380V 200 400 480 262 185.5 20
NK600-220-3 380V 220 440
NK600-250-3 380V 250 500
NK600-280-3 380V 280 560
NK600-315-3 380V 315 630
NK600-355-3 380V 355 710 620 372 185.5 28
NK600-400-3 380V 400 800
NK600-450-3 380V 450 900
NK600-500-3 380V 500 1000
NK600-630-3 380V 630 1260

 Choosing a motor soft starter depends on the following information:

1. Application type and load type;

2. Nominal power and current of the motor;

3. Supply voltage condition and location;

4. The freqquency of start and stop motor in a given period;

Application

bypass starter
Bypass starter
The loading Voltage ramp start time(s) Voltage ramp stop time(s) Initial voltage Voltage ramp (Current limit) Current limitto start
Bill mill machine 20 6 60% 400% 350%
Fan 26 4 30% 400% 350%
Centrifugal 16 20 40% 400% 250%
Piston compressor 16 4 40% 400% 300%
hoister 16 10 60% 400% 350%
Stirring machine 16 2 50% 400% 300%
Breaker 16 10 50% 400% 350%
Screw compressor 16 2 40% 400% 300%
Rotating conveyor 20 10 40% 400% 200%
Light load 16 2 30% 400% 300%
Convey belt 20 10 40% 400% 250%
Heat pump 16 20 40% 400% 300%

Motor soft starter can be widely used as blew:

● Pump: make use of the soft stop function to relieve the influence of water hammer so as to save the system maintenance cost.

● Ball mill: make use of the voltage ramp startup to reduce gear torque friction so as to save cost and time.

● Fan: reduce the belt friction and mechanical conflict to save maintenance cost.

● Conveyor: make use of the soft start to realize smooth and gradual startup process in order to avoid product move and liquid overflow.

● Compressor: use limited current to realize smooth start-up, decrease heat from motor and prolong device life.

Customer service

1. ODM/OEM service is offered.

2. Quick order confirmation.

3. Fast delivery time.

4. Convenient payment term.

At present, the company is vigorously expanding overseas markets and global layout. We are committed to becoming one of the top ten export enterprises in China’s electrical automatic product, serving the world with high-quality products and achieving a win-win situation with more customers.

Noker SERVICE
Freight

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