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

Short Description:

690v 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.

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Product Detail

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Features

690v 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	AC690V±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
	(V)	(kW)	(A)
NKS601-008-6	690V	7.5	7.5
NKS601-011-6	690V	11	11
NKS601-015-6	690V	15	15
NKS601-018-6	690V	18.5	18.5
NKS601-022-6	690V	22	22
NKS601-030-6	690V	30	30
NKS601-037-6	690V	37	37
NKS601-045-6	690V	45	45
NKS601-055-6	690V	55	55
NKS601-075-6	690V	75	75
NKS601-090-6	690V	90	90
NKS601-110-6	690V	110	110
NKS601-132-6	690V	132	132
NKS601-160-6	690V	160	160
NKS601-200-6	690V	200	200
NKS601-220-6	690V	220	220
NKS601-250-6	690V	250	250
NKS601-280-6	690V	280	280
NKS601-315-6	690V	315	315
NKS601-355-6	690V	355	355
NKS601-400-6	690V	400	400
NKS601-450-6	690V	450	450
NKS601-500-6	690V	500	500

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

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.