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IRZ-410 variable-frequency drive for sucker rod pumps (SRP)

The station ensures control, parameters monitoring and protection of SRP electric motors with power ranging from 5 to 55 kW enabling smooth acceleration, deceleration and speed control.

Advantages

  • possibility to change the swinging rate without replacement of pulleys and shutdown
  • possibility to connect downhole sensor (thermomanometric) systems of different producers
  • smart control algorithms: calculation of pump fill, flow rate, downhole and ground equipment loads, automatic adjustment for max flow rate, reduction of plunger-liquid impacts
  • possibility to connect a dynamograph
  • history recording to a USB FlashCard
  • software update without shutdown of the sucker rod pump unit
  • informative four line display
  • compliance with the requirements of oil companies and GOST R51321.1-2007

Functions

  • manual or automatic control
  • motor smooth acceleration and deceleration
  • energy saving
  • motor rotor speed control
  • swinging start to overcome jamming (heavy start)
  • continuous control of line voltage, phase sequence, three-phase current values
  • calculation of voltage and current unbalance, power factor, load factor, power consumption, non-failure operation time
  • record of parameters controlled and causes of motor shutdown in real-time mode with saving of records during power interruptions
  • minimization of emergency shutdowns and increase in flow rate due to automatic control of rotation frequency
  • protection of equipment against emergency modes caused by faults in the electric mains and sucker rod pump unit
  • after actuation of the protection system, the station automatically restarts when parameters return to the working range

The control station

  • can be integrated into oilfield telemechanics (normally closed or normally open contacts)
  • can be connected to a SCADA-system via RS-232 or RS-485 interface using the MODBUS.RTU communications protocol
  • has a GPRS-modem to transmit data via Internet

Specifications

ParameterValue
Supply voltage, V 190…520
Power of connected motor, kW 5…55
Range of motor rotation frequency control, Hz 0.5…100 (spacing 0.1)
Error of current, voltage, rotation frequency and time setting control, % 2
Enclosure protection class IP54
Operating temperature, °C -60…+50

Modifications

The station can be equipped with an input line filter to ensure that voltage and current wave from distortion factor at the control station input is not more than 10%.

Upon request, the control station may include a power metering system registered in the State Register of Measuring Devices.

DesignationRated current, АOverall dimensions, mmWeight, kg
IRZ–410–60 60 1100х860х350 100
IRZ–410–110 210 120
About producer

Service desk: 8 800 100 63 93
Sales office: +7 3412 658 305658 059500 626
Chief designer: +7 3412 500 353
Fax: +7 3412 636 585

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