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GZYQ Series Liquid Resistor Starter
Hotline:+86 710 2309484Inquiry
GZYQ series liquid soft starter for high voltage AC motor solves the difficulty of starting super large and medium power high voltage AC motor and fills in the blank of soft starting technology for super high power high voltage AC motor. This series of starter has a number of patents, and has been included in the National Torch Program, Shanghai Science and Technology Achievement Transformation Project, and won the provincial Science and Technology Progress Award. The GZYQ3 high-voltage AC motor liquid intelligent soft starter has been included in the key national Torch Program project and the country. The Science and Technology Innovation Fund project was rated as a national key new product by the Ministry of Science and Technology and other five ministries.

Scope of application
It is suitable for soft starting, soft stopping and protection of super large and medium squirrel cage AC asynchronous motor or asynchronous starting synchronous motor with rated voltage of 3.6kV, 7.2kV, 12kV and 15kV and rated power of 100-40000kW. Especially in industrial and mining enterprises with insufficient power grid capacity, the use of high-voltage liquid soft start can better show its advantages of predictability, adjustability and controllability. Products are widely used in metallurgy, petroleum, chemical industry, water conservancy, electricity, light industry, machinery, coal, building materials, military industry, automobile, municipal engineering, pharmaceutical and other fields. 

Features

Predictable: The whole starting process of the motor and its driving equipment can be simulated by special computer simulation software. The starting performance of the motor can be analyzed in advance, and the best starting curve can be obtained.


Adjustable: starting time, liquid resistance and other parameters can be randomly adjusted according to the actual conditions of the site;


Controllable: The liquid resistance value can be set according to the optimal electromagnetic torque and minimum starting current of the controlled motor, and the starting process is completely controlled, thus the voltage drop of the power grid is also effectively controlled.


Repeatable: Initial resistance of liquid resistance can be automatically detected and corrected according to ambient temperature and last starting liquid temperature to ensure consistency and stability of starting performance when starting again.


- PLC control, high reliability, and can be networked with industrial computers to achieve remote communication and computer centralized control;
- Smooth starting process, no impact on motor, power grid and mechanical transmission system;
- Automatic inspection of liquid resistance level and liquid temperature function, perfect alarm function;

- Continuous starting



Technical DataCertificates

Rated voltage (kV)

3.6

7.2

12

15

1min power frequency withstand voltage (kV)

10/18

12

20/23

15

28/32

18

40/45 (phase to ground)

23 (phase to phase)

10/18

12

20/23

15

28/32

18

40/45 (phase to ground)

23 (phase to phase)

Start current (A)

Iq: 1.5~3.5Ie

Start time (s)

10~60~120 (adjustable)

Working temperature of liquid resistor (℃)

0~70

Number of continuous start

3~4 (≤1500kW) 2~3 (≥1500kW) (with ambient temperature 25℃)

IP

IP20,IP30 (can customized)

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