Home Products Prices Our Partners Customer References Co-promotion offer/Reseller Press Release Contact Us FAQ Site Map



 
 
  Star delta panel benefits
  Limitations
  Options / accessories
  Send inquiry


motor starter panel pictures




Soft starter Panel




Home >> Products >> Star Delta Motor Stater Panel
 
Hanut India: Fully automatic star delta motor starter panels


  star delta
                                                  motor starter panel
                                                  Hanut India

 

Hanut India offers Fully automatic star delta motor starter panels.

Necessity for star delta motor starter panel

Whenever a large three phase induction motor is started directly on line [DOL] there is a voltage dip in the entire supply line due to large starting current [typically 6~ 10 times the motor's rated current].

To limit this large starting current and the associated voltage dip and the sudden acceleration of the motor one can use fully automatic star delta motor starter panel.

Under star delta motor starting the starting current is limited by starting the motor under reduced voltage. Full voltage is supplied to the motor when it has reached close to [~ 85%] of its rated speed. Sudden acceleration of the motor [stress on the mechanical components] is thus reduced significantly.

Star delta motor starter panel is simple and rugged in comparison to other reduced voltage motor starting methods.

Star delta motor starter panel is one of the cheapest reduced voltage motor starting methods.

Star delta motor starter panel is well suited for motors requiring low starting torques.

Purchase Order received from NHPC Rangit power station, Sikkim for supply of star delta motor starter panels for drainage and dewatering pumps. 65HP and 35HP.

Limitations / drawbacks
Although the Star delta motor starter panel has many advantages and is very popular this method is not without demerits. Some of the limitations / drawbacks of the Star delta motor starter panel are

Star delta motor starter panel is not suited in applications where the motor is heavily loaded at start up time. In other words where motor required heavy starting torque then star delta motor starter panel might not be the most suitable motor starting method.

Star delta motor starter panel uses six connection cables against three cables in DOL starting.

During switch over from star to delta connection there is a momentary break in current supply to the motor. In some cases high harmonics can be generated during this transfer.

For applications where star delta motor starting is not suitable Hulasi offers superior high technology motor "soft starter" panels also.

See pictures of  motor "soft starter" panel with star delta by pass built by Hulasi for NHPC India.

Options / optional accessories

Star delta motor starter panels are designed as per the rated power of the motor and in a nut shell the Star delta motor starter panel comprises of three contractors, a timer and a thermal overload relay.

A wide variety of options and accessories can be added to the Star delta motor starter panel.

* protection against phase loss
* protection against phase reversal
* protection against over / under voltage
* protection against short circuit
* remote TRIP facility
* emergency stop button
* IP55 rated enclosure can be provided if the motor starter panel is to be used outdoors.
* purged & pressurized enclosures for use in dusty and/or hazardous locations can also be provided.


Like with its other products Hanut India can customize Star delta motor starter panels / soft starter motor panel to meet the customer's / site's exact requirements.






   








  
 



Request Price Quote                        TOP



Hulasi Metals Pvt. Ltd., India. All rights reserved. Terms of use / Legal Statement
Home | Feedback / Comments | Resellers Invited | Site Map | Exchange link with us