Variable Speed Drive

Applications

    The Etalon VSD is designed to provide the maximum flexibility for enhanced reliability in a wide variety of challenging applications, including:

  • Unconventional wells
  • Cost sensitive wells
  • Unstable flow
  • High GOR
  • Hard to start pumps
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Drive ratings range

  • from 63Amps to1837 Amps
  • will be offered initially in 6,12, or 18 pulse for harmonic mitigation with 380 Vac or 480 Vac ratings.

Software Features:

1. Pump Unfreeze Function

  • The Pump Unfreeze is designed for hard to start or stuck pumps;it uses the latest software features and enhancement of the proven technology to free the majority of stuck pumps.

2. Pump Shaking Algorithm

  • The Pump Shaking algorithm alternates the motor speed with adjustable frequency limits, acceleration and deceleration to prevent or free scale deposits from the pump stages.

3. Gas Lock Ride Thru

  • The Gas Lock Ride Thru is a custom control algorithm specific for breaking gas Lock conditions. When the Gas Lock condition is detected, the ETALON VSD will follow the specific algorithm for several attempts, or until the Gas Lock condition is no longer present.

Parameter and Specification Details

Parameters Specifications
Input voltage 480 Vac -25 % / +10 % 380 Vac -25 % / +25 %
Input frequency 47-63 Hz
Power factor > 0.95 across all speeds
Output frequency 5-500 Hz (0.1Hz resolution)
Output distortion < 5 % after PWM SINE filter
Intermittent overload 120% for 1 minute
Maximum operating ambient temperature 55 °C / 131 °F
Minimum storage and operating temperature (has internal heaters) -40 °C / -40 °F
SCADA/ I/O built in (i.e. more options available with additional cards) -RS485 (9,6-115 kbps) MODBUS Slave SCADA - interface for monitoring and control - Analog inputs (0-10 Vdc/ 4-20 mA) - Digital inputs (24 Vdc)
Fault & event logging Incorporated in the software with USB card
Noise < 75 dB at 1 meter

ESP PMM VFD Switchboard

Advantages:

  • The unit operates based on well potential in an automatic mode.
  • Complete controllability of pump operation modes from 1,000 to 10,000 rpm.
  • Reduced dimensions of the unit.
  • Easy wellhead mounting
  • High corrosive and wear resistance.
  • Reduced power consumption.
  • A possibility to operate below well perforation zone.

ESP VFD Switchboard With Active Front End

Advantages:

    No adverse effect on supply network

  • High unit power factor.
  • No effect on generating capacity, other consumers or control systems.
  • Reduction of harmonic component factor of the network.
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Switchboard reliability is ensured by application of reliable components, proven circuits and technologies, and quality control. Switchboard structure ensures supreme convenience during maintenance and operation.