Variable speed drives Borets-VD40, Borets-VD80 and Borets-VD250 are designed for effective operation of submersible pumping systems that may be achieved due to the adjustable speed of permanent magnet motor.

Apart from control and protection VSDs Borets-VD40 and Borets-VD80 ensure as follows:

• Smooth start and shutdown of motor
• Optimize well operation using DHS signals or without signals as per a special program
• Automatic removal of gas lock in pumping system
• Operate wells with unstable production
• Periodic well operation ensuring longer runlife of electrical equipment
• Well operation without shutdown of ESP system to cool the motor.