Variable Frequency Drives

Variable Frequency Drives provide maximum flexibility to adjust downhole system to changing operating conditions. As a result, maximum system run life can be assured while optimizing production rates.

 

The application-specific custom firmware provides optimum control with user-friendly adjustments, including frequency, acceleration and deceleration rates, auto restart, retries and delays and stopping methods.

 

Borets VFDs are equipped with state-of-the-art Sine-Wave Filter technology to produce the smoothest waveform output with minimal harmonic content, thereby minimizing harmful electrical stress to the motor, power cable and other electrical components.

 

Benefits

 

Provides flexibility to match ESP parameters with changing well conditions for optimized system performance and maximum production

Continuous ESP system operation in case of power supply loss - up to 2 seconds (for ESP system with check valve)

Automatic gas locks removal by changing frequency when under load occurs

Enhanced remote monitoring, communication and control capabilities with the use of downhole sensors

Ability to adjust speed as equipment wears to maintain production or extend run life to minimize downtime waiting on replacement equipment

Maximum starting torque in the «start current limitation»

Backspin braking with the possibility of setting frequency of backspin interception

Accelerated fluid drain from tubing (for ESP system without check valve) after pump stop.

 

"Borets" Variable Frequency Drives are equipped with Kvant 1.

 

Axiom™ Variable Frequency Drives

 

are manufactured with ratings from 180 A to 1650 A (143 kVA to 1300 kVA) and offered in NEMA 3R outdoor rated enclosures. These enclosures are designed to meet a range of environments from arctic to desert conditions with ambient temperature ratings from -40°C to +55°C. Optional low harmonic input solutions for 12, 18 and 24 pulse requirements are also available to meet strict power system specifications.

 

"Borets-VD" Variable Frequency Drives for Permanent Magnet Motors

 

"Borets-VD" VFDs are designed for effective operation of submersible pumps through adjusting the frequency of a Permanent Magnet Motor (PMM). VFDs for Permanent Magnet Motors provide the following functions:

 

smooth acceleration and braking of the motor, 

wells operation with unstable inflow, 

intermittent well operation, 

wells start-up without stopping the ESP system to cool the motor, 

operation of wells with high GOR, viscous or emulsified fluids and high solids content.