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WGQH 11kv solid motor soft starter
1) Main function
High voltage motor will creat big shake if start or stop directly, heavily influence the motor service life and loaded equipment , some times motor burnt .
WGQH motor soft start/ stop is high-tech national patented product .
1) reduce motor start current, high efficient in saving power
2)much motor protection function (as following introduction)
3)easy install, free maintenance, save maintenance cost
4)highly increase the motor service life
5)accurate setup start torque /start current/start time/ stop time/ etc
6) can connect to computer, PLC
2)USING AREA:
suitable motor | AC squirrel cage motor | |
Rated voltage | <=12KV | |
Rated current | 75A ~ 600A | |
Rated power | 500KW ~11000KW | |
cabinet size | mm | 2300X1300X1560 |
working condition ( if special, pls clarify) | temperature | -20C ~ + 50C |
air humidity | <=90% | |
Altitdue | normal 2000m | |
power frequency | 50Hz +/-2Hz | |
3)Working principle:
1.IT adopts DSP controlling technique,power and electron technique, and multiple SCR series/parallel to motor, to protect the motor completely.
2 . it has a high effect of over 96%(top to 97%)
3 .the device combines series¶llel thyristor, professional insulating material imported with original packing and modern power& electric control technology
4)Unique Feature:
1.It perfectly protect the stator and motor from faults like short circuit, over current,current limiting, over-voltage, under-voltage,over load, open-phase, 3 phase unbalance, over heat, communication fault,
2.The main circuit is equippment with component-based structure,modularized installation method, can reach the target of multiiple onver-voltage absorption and protection.
3.It multiply limiting the clamp of transient dv/dt, lighting impulse voltage,operation wave over-voltage and that of transient transition process. it has unique measure and methos to reach pressure balancing of di/dt, valve recanalizing and turn-off.
4.Different current intensities are isolated perfectly, the system adopts high anti-interferential digital contactor, matched with fiber/CT isolation transforming technology, which help to avoid interference of each current, making the high voltage performance is as reliable and safe .
5.The specially designed fault detection return and judging system can pass the detecting result to the control circuit in time and start the sound and light alarm
6.Unique heat dissiipation design can effectively cool the thyristor and machine
7.It is of small volume, low power dissipation, high sensitivity, and non-contact and so on, also easy to install