Medium voltage · Power factor correction
Reactive power compensation for grids and industrial plants that need it.
Our MV capacitor banks deliver power factor correction, voltage support, and harmonic filtering up to 9 MVAR and 24 kV. Available as metal-clad cubicles, open-rack configurations, or integrated within package substations — fixed or automatic switching, smart-ready, and built to international standards in Madinah.
- Voltage
- 12 / 24 kV
- Capacitor bank power
- Up to 9 MVAR
- Step configuration
- Fixed or automatic
- Communication
- Modbus TCP · RS485 · IEC 61850
The range
Three configurations for three deployment contexts.
From the metal-clad cubicle that matches the MV switchgear line, to a reduced-cost open rack, to a bank built straight into a package substation.
Up to 24 kV · Metal-clad cubicle01 / 3Power factor correction — Metal-clad
Capacitor banks housed within metal-clad cubicles matching the broader MV switchgear product family. Forced cooling at IP 54, easy cable connection from below, and main switching via load-break switch or circuit breaker. The configuration of choice for indoor substations and industrial electrical rooms.
12 / 24 kV · 5.4 to 9 MVAR · Forced IP 54 · LBS or circuit breaker
Up to 24 kV · Open-rack02 / 3Power factor correction — Open-rack
Open-rack configuration for outdoor or large-installation environments where the metal-clad form factor is not required. Engineered for visual inspection accessibility and reduced footprint cost, with the same electrical characteristics as the metal-clad bank.
12 / 24 kV · Up to 9 MVAR · Natural cooling · Indoor / outdoor
Up to 24 kV · Integrated03 / 3Power factor correction — Package substation
Vision 2030 ready
Capacitor banks integrated into TEPCO package substations as part of a complete factory-built solution. Eliminates a separate capacitor bank enclosure on site and reduces overall electrical room footprint — site work limited to cable connection.
12 / 24 kV · Up to 9 MVAR · Single-supply · Cable-connect only
Side-by-side specifications
Full technical comparison across capacitor bank configurations.
| Specification | Metal-clad | Open-rack | Package integration |
|---|---|---|---|
| Rated voltage | 12 / 24 kV | 12 / 24 kV | 12 / 24 kV |
| Capacitor bank power | Up to 9 MVAR | Up to 9 MVAR | Up to 9 MVAR |
| Typical step config | 1.8 / 1.8 / 3.6 MVAR | 1.8 / 1.8 / 3.6 MVAR | 1.8 / 1.8 / 3.6 MVAR |
| Larger step config | 1.8 / 3.6 / 3.6 MVAR | 1.8 / 3.6 / 3.6 MVAR | 1.8 / 3.6 / 3.6 MVAR |
| Mass | 6–8 tons | Application-specific | Within substation envelope |
| Standard footprint | 4,250 × 3,750 × 2,400 mm | Application-specific | Within substation |
| Rated frequency | 50 / 60 Hz | 50 / 60 Hz | 50 / 60 Hz |
| Cooling | Forced (IP 54) | Natural | Forced (IP 54) |
| Main switching | LBS or circuit breaker | LBS or circuit breaker | LBS or circuit breaker |
| Step switching | Contactors / breakers | Contactors / breakers | Contactors / breakers |
| Indoor / outdoor | Indoor | Indoor / outdoor | Indoor / outdoor |
| Modbus TCP | Supported | Supported | Supported |
| RS485 | Supported | Supported | Supported |
| IEC 61850 | Supported | Supported | Supported |
Metal-clad
- Rated voltage
- 12 / 24 kV
- Capacitor bank power
- Up to 9 MVAR
- Typical step config
- 1.8 / 1.8 / 3.6 MVAR
- Larger step config
- 1.8 / 3.6 / 3.6 MVAR
- Mass
- 6–8 tons
- Standard footprint
- 4,250 × 3,750 × 2,400 mm
- Rated frequency
- 50 / 60 Hz
- Cooling
- Forced (IP 54)
- Main switching
- LBS or circuit breaker
- Step switching
- Contactors / breakers
- Indoor / outdoor
- Indoor
- Modbus TCP
- Supported
- RS485
- Supported
- IEC 61850
- Supported
Open-rack
- Rated voltage
- 12 / 24 kV
- Capacitor bank power
- Up to 9 MVAR
- Typical step config
- 1.8 / 1.8 / 3.6 MVAR
- Larger step config
- 1.8 / 3.6 / 3.6 MVAR
- Mass
- Application-specific
- Standard footprint
- Application-specific
- Rated frequency
- 50 / 60 Hz
- Cooling
- Natural
- Main switching
- LBS or circuit breaker
- Step switching
- Contactors / breakers
- Indoor / outdoor
- Indoor / outdoor
- Modbus TCP
- Supported
- RS485
- Supported
- IEC 61850
- Supported
Package integration
- Rated voltage
- 12 / 24 kV
- Capacitor bank power
- Up to 9 MVAR
- Typical step config
- 1.8 / 1.8 / 3.6 MVAR
- Larger step config
- 1.8 / 3.6 / 3.6 MVAR
- Mass
- Within substation envelope
- Standard footprint
- Within substation
- Rated frequency
- 50 / 60 Hz
- Cooling
- Forced (IP 54)
- Main switching
- LBS or circuit breaker
- Step switching
- Contactors / breakers
- Indoor / outdoor
- Indoor / outdoor
- Modbus TCP
- Supported
- RS485
- Supported
- IEC 61850
- Supported
Where it's deployed
For industrial plants and utilities where reactive power is a real cost.
Power factor correction reduces utility penalties, frees up transformer capacity, and stabilises voltage. The energy savings often justify the investment within 18 to 36 months.
- 01
Industrial plants with large motor loads
Reactive power compensation for plants running heavy motors — cement, steel, water pumping, large HVAC. Power factor correction reduces utility penalties and frees up transformer capacity.
- 02
Utility grids — voltage support
Capacitor banks at distribution substations stabilise voltage during peak load and improve overall network power quality. Specified by SEC and other utilities for grid reinforcement.
- 03
Commercial facilities — energy efficiency
Shopping centres, hospitals, and large commercial complexes reduce reactive power demand and lower utility bills. The energy savings often justify the investment within 18 to 36 months.
- 04
Harmonic filtering applications
For sites with significant non-linear load profiles — VFDs, large UPS systems, electronic equipment — tuned capacitor banks act as harmonic filters in addition to power factor correction.
- 05
Renewable energy plants
Solar PV plants and wind farms benefit from capacitor banks for voltage support at the point of connection, improving grid compatibility and meeting utility grid-code requirements.
- 06
Power transmission
Capacitor banks installed at transmission substations help maintain voltage during long-distance power transmission, reducing line losses.
A switched bank tapped off the busbar injects leading reactive power to offset an inductive load. The power triangle shows apparent power S falling toward real power P as the reactive component is compensated — the lower the kVA, the lower the bill.
Engineered to standard
Designed, manufactured, and tested to IEC standards.
The MV capacitor bank family is designed and tested per the IEC standards covering shunt capacitors, metal-enclosed switchgear, contactors, and electromagnetic compatibility.
IEC standards compliance
- IEC 60871Shunt capacitors for AC power systems rated above 1,000 V.
- IEC 62271-200AC metal-enclosed switchgear and controlgear.
- IEC 60470HV AC contactors and contactor-based motor starters.
- IEC 61000 seriesElectromagnetic compatibility for harmonic applications.
Management systems and protocols
- ISO 9001 : 2015
- ISO 14001 : 2015
- ISO 45001 : 2018
- IEC 61850 · Smart-grid integration
Documentation
Everything your engineering team needs to specify, install, and commission.
Datasheets, dimensional drawings, a sizing calculator, and installation manuals, released on engagement to the named project team.
Family datasheet
PDF · ~5 MB
All three configurations, full specifications, and single-line diagrams.
Request copy
Dimensional drawings
PDF + DWG · ~8 MB
CAD-ready drawings including cubicle dimensions and cable entry layouts.
Request copy
Sizing calculator
XLSX · ~1 MB
Indicative MVAR requirements from transformer size, load profile, and target power factor.
Request copy
Installation manual
PDF · ~3 MB
Handling, cable connection, step commissioning, and protection settings.
Request copy
Capacitor bank documentation is released under non-disclosure to qualified buyers. Send your transformer rating, load profile, or target power factor and we will return the bundle — with an indicative sizing — within one working day.
Often deployed together
Related products in the TEPCO portfolio.
The families most often specified alongside capacitor banks on Saudi distribution and industrial projects.
Primary distribution
Medium voltage switchgear
Capacitor banks typically deploy alongside primary MV switchgear in distribution substations.
View MV switchgear
Factory-built
Package substations
Capacitor banks can be integrated into package substations as a single factory-built solution.
View package substations
Digital
Smart grid and automation
Add intelligent protection and remote monitoring to any capacitor bank installation.
View smart grid
Ready to specify capacitor banks?
Send us your transformer rating, load profile, or target power factor — our Madinah engineering team will respond within 24 hours with an indicative sizing and configuration.