Grid Resistance Starter (GRS)

Owing to our expertise, we bring forth superior quality Grid Resistance Starter that is widely used in Cement and mining industry, pump stations, power plants, steel plants and sugar plants. It is designed and developed under the guidance of skilled technocrats keeping in mind the international standards. We offer this Grid Resistance Starter in various technical specifications as per the application requirements of the clients. Known for features such as ability to take n number of starts as per design, maintain accurate starting torque, easy installation, less maintenance, high performance and durability, this electrical product is in high demand among our clients. The GRS is housed in an industry grade enclosure manufactured out of heavy gauge sheet steel painted with two coats of anti-corrosive paint and one coat of final paint. The GRR is designed in two compartments, front and back.

1. Front compartment will be dust and vermin proof, provided with suitable gaskets and will be housed with Power Contactors and other switchgear.

2. Back compartment will be well ventilated, natural/forced cooled type, and will be housed with resistance banks.

The resistance will be stainless steel coil type with high thermal capacity and will be designed for temperature rise 350°C. The resistance coils will be mounted on angle iron structure with proper support to absorb the vibration and stresses that occur during transit/fault. The Rotor Starter contactor panel and Resistance box are mounted in the same unit with partition in between. Connection between the resistance box and contactors are done by solid copper jumpers through polypropylene sheets. If required, adequate number of cooling fans provided to take away the heat generated during startup.

1. Front compartment will be dust and vermin proof, provided with suitable gaskets and will be housed with Power Contactors and other switchgear.

2. Back compartment will be well ventilated, forced cooled type, and will be housed with resistance banks.

The resistance will be stainless steel coil type with high thermal capacity and will be designed for temperature rise 350°C. The resistance coils will be mounted on angle iron structure with proper support to absorb the vibration and stresses that occur during transit/fault. The Rotor Regulator contactor panel and Resistance box are mounted in the same unit with partition in between. Connection between the resistance box and contactors are done by solid copper jumpers through polypropylene sheets. Adequate number of cooling fans provided to take away the heat  generated during regulation.

• Type of Driven machine

• Motor Power (KW)

• Rotor Voltage (V)

• Rotor Current (A)

• Motor rated Speed

• Single or Twin Drive

• TS curve of drive

• Load Torque curve of driven machine

• Max. KW at @full load & @full speed

GRS can be used for following conditions:

•     Number of starts per hour is more

•     Starting torque/current limit is very accurate

•     low maintenance

•     Best for applications like wagon tippler

Comparison between all type of Resistance Starters