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Mobile reactive power compensation system with modular fixed or multistage switched capacitor steps that can compensate to a preset power factor

The mobile capacitor banks is a packaged factory assembled and tested reactive compensation system with modular fixed or switched capacitor steps, which automatically compensate an individual load or the network to maintain a preset level of power factor. The capacitor bank is mounted on a trailer and can be moved from one substation to another.


The mobile capacitor bank can be used for seasonal load in the grid (like in agriculture and certain industries), during maintenance of existing capacitor bank or when the reactive power required is higher than the installed Mvar during peak load time.

Why Hitachi Energy?

  • Hitachi Energy's premium range of components
  • Factory tested
  • Integrated design of primary and secondary equipment
  • Range of enclosure types to suit a variety of applications
  • Proven Hitachi Energy design reducing life cycle costs
  • Fully enclosed design protecting live parts
  • Type tested bus bar system on selected models
  • Modular in design and easily expandable
  • Re-locatable asset- can be moved as plant demand change
  • Flexibility in the range of options available to suit various types of applications

Brief performance data

Mobile capacitor bank   
Voltage Up to 36 kV
Maximum output ≤ 20 Mvar
Frequency 50 or 60 Hz
Location Indoor or outdoor
Ambient temperature -40/ +55≤ºC
Altitude <1000 m above sea level
Humidity  Max 90% RH non-condensing
Insulation level ≤ 12 kV 28/75 kV BIL
≤ 12 kV - 17.5 kV 38/95 kV BIL
≤ 17.5 kV - 24 kV 50/125 kV BIL
≤ 24 kV - 36 kV 70/170 kV BIL
Short circuit current Up to 50 kA for 1 second
Bank configuration Fixed, switched, single or multistep
Standards IEC, ANSI, IEEE and CSA

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