High Quality 7.5-600kw 3 Phase Ac660v Ac690v Asynchronous Electric Motor Injection Machine Soft Starter

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 low voltage soft starters 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.

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Product Detail

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Features

Low voltage 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	296	169	192	5
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 low voltage 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

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%

3 phase electric motors 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.

● Others.

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.