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Motor Soft Starter

motor soft starter
  • Zhejiang Yonghua Electrical Co., Ltd
  • www.chinayowa.com
  • 13758891221

Product Description:

1. Overview and Usage

JX01 series automatic decompression start box is suitable for the rated voltage 380V~660V, power 0~800KW three phase squirrel cage induction motor as decompression start, it uses the way of autotransformer decompression to improve the influence on the transmission network at the start of the motor.

 

Operating conditions

(1) Altitude of installation position shall not exceed than 2000 m.

(2) Ambient temperature shall be controlled between +40℃ and -10℃.

(3) The relative humidity of the installtion position shall not exceed 85%.

(4) The vibration is not over 0.5mm,the frequency is not over 600 times/minute.

(5) Does not surpass 5 with the vertical gradient.

(6) Medium without gas that enough to corrode metal and destroy the insulating, and avoiding the conductive dust.

 

2、Main technical parameters

 

Model

Power of controlled no-load motor (KW)

Power of controlled 6 level motor (KW)

Power of autotransformer (KW)

Current transformer current ratio

Maximu working current (A)

Sum of maximu starting time (S)

JX01-22KW

18.5KW

11KW

22KW

50/5

43

30

JX01-30KW

28KW

22KW

30KW

50/5

57

30

JX01-40KW

37KW

30KW

40KW

100/5

80

30

JX01-55KW

55KW

45KW

55KW

200/5

110

30

JX01-75KW

75KW

55KW

75KW

200/5

142

30

JX01-100KW

90KW

75KW

100KW

300/5

200

50

JX01-115KW

110KW

90KW

115KW

300/5

230

50

JX01-135KW

132KW

100KW

135KW

600/5

270

50

JX01-160KW

155KW

110KW

160KW

600/5

320

50

JX01-190KW

186KW

132KW

190KW

600/5

370

50

JX01-225KW

220KW

155KW

225KW

800/5

410

100

JX01-260KW

255KW

186KW

260KW

1000/5

475

100

JX01-300KW

285KW

220KW

300KW

1000/5

535

100

JX01-320KW

320KW

255KW

320KW

1000/5

630

100

JX01-350KW

350KW

285KW

350KW

1500/5

750

100

JX01-400KW

380KW

320KW

400KW

1500/5

800

100

JX01-450KW

450KW

350KW

450KW

1500/5

1000

100

JX01-600KW

600KW

380KW

600KW

2000/5

1300

100

JX01-800KW

800KW

450KW

800KW

2000/5

2000

100

Table 1

 

3. Starting performance

 

When we start its motor, the starting current shall not exceed 3-4 times of the rated starting current. Continuous starting time exceeds the data in “Table 2” and its temperature reachs 120℃, transformer temperature controller will cut off and stop working, we shall wait its temperature turn down, then go on working. So this product is only for the long time interval start, not suitable for frequent operation conditions.

 

Table 2

 

Rated power of Starting the motor(KW)

Once starting time (S)

Sum of continuous starting time (S)

14~30

8

20

40~75

12

30

90~190

15

40

225~320

20

50

350~400

25

70

450~800

30

100

Notice: Time relay has been adjusted in factory,such as starting time is not enough, adjust it carefully, do not adjust the time freely.

 

4. This product is a box protection structure, consists of autotransformer, AC contactor, time relay, multiple protection, intermediate relay, universal changeover switch and some other elements. Use the auto method of control once in 75KW or below, once in 90 KW or over there are the auto and manual method of control, allows you to switch among them by universal changeover switch. Autotransformers are always connected to the 65% tapping in factory, do not need to connect in the 80 % tapping.

 

5. Must connect wire correctly as wiring diagram before using,check the screws not loose and wire not off or elements without breaking for all the elements in box, in order to ensure the safety and normal working.

 

(1) Auto operation: Power on, the red light, over 90KW the switch turns to “Auto”; Press “Start” button, the motor starts decompression working. The red light is off, the yellow will light, time relay starts working, once time relay in rated time, the contacts are closed, switch automatically, turn to normal working, at this time the yellow light will be off and the green light. Press “ Stop” button or turn the switch to “Stop”, the motor will stop working.

(2) Manual operation: Power on, the red light, turn the switch to “ Manual”. Press “ Start” button, the motor starts decompression working. The red light is off, the yellow will light, once the speed of the motor is close to operation’s or nearly the same, (don’t exceed the time in table 2) then press “Operate” button, the motor turn to normal working, meanwhile the yellow light will be off and the green light. Press “ Stop” button or turn the switch to “Stop”, the motor will stop working.

(3) In automatic operation, the operator must strictly monitor the work of the start box, check if it can automatically switch within the stipulated time, such as the green light, it means it has switched, then the operator can get away from it.

(4) Temperature protection of transformer: when the transformer starts for a long time or for too many times, it will cause transformer heating and thermostat contact off, lead to a sudden stop during startup, in this case, need to cool down and then start.

 

6. Effective protection method of comprehensive protector

When start box in factory, the setting current of motor protector does not match the actual use current, should adjust the current immediately, the most easiest way:

In the motor operation (Already load operation) , use the “一” port screwdriver turn down ( turn slowly) in HHD36 current adjustment plate of comprehensive protector untill trip, then turn up a bit bigger to make the current near tripping operation, it can effectively protect the motor.

Notice: Trip level has been set, don’t adjust optionally, or the motor will not be protected.

 

7. Main components

 

Component name

14-22

KW

30KW

40KW

55-75

KW

90-115

KW

135-190

KW

225-320

KW

350-450

KW

Symbol

AC contactor(380V)

CJT1-40

CJ20

-63

CJ20

-100

CJ20

-160

CJ20

-250

CJ20-400

CJ20

-630

CJ40

-1000

KM3

CJT1

-20

CJT1

-40

CJ20

-63

CJ20

-100

CJ20

-160

CJ20-250

CJ20

-400

CJ20

-630

KM2

 

CJT1

-20

CJT1

-20

CJT1

-40

CJ20

-63

CJ20-100

CJ20

-160

CJ20

-250

KM1

Intermediate relay

JZ7-44/380V

KA

Time relay

JS14P/380V

KT

Motor protector

HHD3F-T

HHD3F-D

HHD3F-A

KH

Ammeter

69L17-A

59L1-A

A

voltmeter

69L17-V

59L1-V

V

Mutual inductor

BH0.66CT

LMZJ-0.5

LHA

Universal switch

 

LW5-15D

HK

Indicator light

AD16

UD/HD

/LD

Button

Y090

QA/TA

/SA

Fuse

RT14

FU

Knife switch

 

HD11-400/39

HD11-600

HD11-1000

DK

 

motor soft starter

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