Tiger Tiger Tiger
Liquid & Solid Starter

A comparison between GZYQ liquid resistor starter and SCR solid starter

       

 

 

GZYQ liquid resistor starter

 

HRVS solid starter

Work principles

   Close loop control over the movement of the moving electrode → decrease in distance between moving electrode and fixed electrode → decrease in resistance of liquid→ constant start current → smooth start

Trigger → series thyristor → reduced voltage → constant start current → smooth start

     

                        Advantages

1. Close loop control available

1. Close loop control available

2.Start time, start current can be adjusted

2.Start time, start current can be adjusted

3. Continuous starts are avilable and consistant start result can be achieved

3.continuous starts are avilable and consistant start result can be achieved

4.Smooth start without secondary impact on the motor or load

4.Smooth start without secondary impact on the motor or load

5.DCS is available

5. DCS is available

6.Suitable to start motors with capacity both higher and lower than the rated one

6.Suitable to start motors with capacity lower than the rated one

7. One starter can start two motors

7.One starter can start two motors

8. Soft stoppage is available

8.Soft stoppage is available

9. No harmonic, no noise

9.Small in size

10. Less complicated techonolgy is involved for maintenance and troubleshooting

 

11.Simulation software to predict the starting result

 

 

12. Suitable for tough environment

 

 

 

 

Disadvantages

1.Big in size

1. Harmonic problem, especially for weak power supply systems

2.Water should be added once every 3~5 years for normal maintenance

2.In case one thyristor breaks down all the other thyristors in series will break down

3.When liquid temperature reaches 85 degrees, further start can not be conducted until the temperature comes down to 75 degrees.

3.Much more expensive and much more complicated technology is involved for maintenance

 

 

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