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Smart power factor controller for automatic capacitor banks

The ​power factor controller is one of the most important components of the ​power factor correction equipment. As such, it plays a key role in the control and monitoring of the power factor and the system power quality.

The RVT touch screen offers power factor control, measurements, monitoring and communication in a user-friendly fashion.


The RVT controllers can be used to control power factor in industrial and commercial networks. Application examples include power factor control in buildings, mining steel industry, chemical, pulp and paper, cement, plastics, printing and food industries.

Why Hitachi Energy?

Power factor controller RVT comes with:

  • Usable in low and medium-voltage networks
  • Complete three-phase measurements of powers and harmonics
  • Programmable warning/protection threshold
  • Easy commissioning
  • Intuitive menu navigation
  • Guided navigation and programming
  • Touch screen
  • Up to 8 temperature probes connections
  • Real time clock
  • Hardware and software lock
  • Communication: Ethernet, USB, Modbus and ​Modbus TCP
  • Fully automatic setup
  • Multi-language support

Brief performance data

Measuring system Micro-processor system for balanced three-phase/single-phase networks and unbalanced network. Individual phase power factor control is available
Supply voltage From 100Vac up to 460 Vac
Connection type for measuring circuit and power supply Phase-phase or phase-neutral for balanced and unbalanced network
Voltage measurement Up to 690Vac or higher with voltage transformer
Frequency range 45 or 65 Hz (automatic adjustments to network frequency)
Number of outputs

RVT6/RVT12 Base Model: programmable up to 6 or 12 outputs

RVT12-3P Three Phase Model: programmable up to 12 outputs

Power factor setting From 0.7 inductive to 0.7 capacitive.
Switching sequences

1:1:1:1:1:….:1 - 1:2:2:2:2:…..:2 - 1:2:4:4:4:….:4

1:2:4:8:8: ….:8 - 1:1:2:2:2:….:2 - 1:1:2:4:4:…..:4

1:1:2:4:8:….:8 - 1:2:3:3:3:… .:3 - 1:2:3:6:6:….:6

1:1:2:3:3…...:3 - 1:1:2:3:6…..:6

and any other customer programmable sequence

Temperature probe input connection Only 2 contacts using 1-wire protocol - Parasitic supply mode ( no need of external power supply ) - Connection to more nodes in a daisy chain network - 8 temperature probes connection - 8 meters maximum between RVT to temperature probe or between probes - 64 meters maximum length
Auto adaptation to the connection and phase-rotation of the network  
Auto adaptation to the CT-terminals  
Power Factor correction operation is insensitive to the presence of harmonics  
Working with passive and regenerative loads (four-quadrant operation)  
Dimensions (HxWxD) and weight 146x211x67 mm - 0.65 kg (unpacked)
Front plate protection IP43 (IP54 on request)

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