Oil Ring Main Units (K-Range)
ACTOM MV Switchgear locally manufactures a range of extensible and non-extensible oil filled ring main units. The K-Range is suitable for both free standing indoor and outdoor application as well as in mini-substations.
- Extensible and non-extensible combinations
- Combinations are made up of switch-disconnectors and fused switch-disconnectors
- Suitable for indoor or outdoor application
- Mineral oil interrupting medium
- Voltages up to 12kV
- Impulse withstand voltage of 95kV BIL
- Short circuit ratings of 20kA for 3 seconds
- Switch-disconnectors rated for 630A
- Fused switch-disconnector functions rated at 200A, suitable for feeding transformers up to 1MVA at 11kV
- Fully interlocked cable side earthing
- Hand charged spring assisted mechanisms where operation is independent of the operator
SF6 Ring Main Units (RMV)
ACTOM MV Switchgear, through its technology partnership with LSE, supplies the RMV range of extensible and non-extensible, SF6 insulated ring main units. The units have been type tested to IEC 62271 international standards, thus ensuring long-life with minimal maintenance and trouble-free service. Specific attention in both the design and testing has been devoted to ensure maximum practicable operator safety under normal operating and abnormal fault conditions.
- 3-phase, AC, fixed-pattern, gas-insulated, sealed-for-life, metal-enclosed switchgear compliant to IEC 62271-200 and SANS 1874
- Switchgear cable compartments designed in accordance with SANS 876 and suitable for 3-core / 1-core front-entry medium-voltage (MV) power cable connections
- Internal arc classified for operator and public safety (i.e. all sides)
- Operation from the front with main circuit mimic diagram on front of panel
- Compact design requiring minimal space (ideal for miniature substations and free-standing RMUs)
- Corrosion resistant stainless steel hermetically sealed pressure system requiring no maintenance on the high-voltage switching devices (sealed-for-life)
- Vacuum circuit-breakers (VCB’s) for feeder and transformer protection compliant to IEC 62271-100
- Three-position switch-disconnectors for ring main applications compliant to IEC 62771-103
- Earthing switches compliant to IEC 62771-102
- Integral cable test facilities compliant to SANS 1874
- Switch-fuse combinations for transformer protection compliant to IEC 62271-105
- Type test certification in accordance with IEC 62271-200
Miniature/Compact Substations (Minisubs)
ACTOM MV Switchgear is a leading manufacturer of miniature substations. Our units have been developed over many years as a cost effective method of reticulating power to residential, industrial and development areas where the essential components are combined in a single robust enclosure suitable for outdoor applications. Miniature substations generally
consist of a steel enclosure housing an MV ring main switch, a stepdown transformer and a low voltage distribution compartment. The units are customised to suite a client’s specific requirements. The miniature substations are also available in a high risk version, manufactured of 6mm steel with protected and or electronic locking. All our units are type tested to the latest local and international standards to ensure performance as well as public and operator safety.
- Suitable for inland (mild steel) or coastal (3CR12) application
- Standard or high risk versions available
- IP54 rated
- Type “A”, type “B” or type “C’” versions available
- Voltage ratings of up to 36kV
- Copper or aluminium winding transformers with ratings up to 1250kVA
- LV compartments specifically customised to clients requirements
- MV or LV metering options
- MV compartment suitable and type tested to house most leading RMU types
- SF6 RMU versions fully internal arc type tested
- Compliant to SANS 1029, SANS780, IEC 62271-202 and NRS004
Mining Minisubs
ACTOM MV Switchgear used its innovative approach to design and manufacture its new range of mining mini-substations by incorporating its quality workmanship and experienced manufacturing processes to produce mini-substations for mining applications. Whether fitted with a skid base or axels with wheels, both designs are solid and robust enough for work in underground or surface mining applications.
- Manufactured of 5mm Mild Steel
- Skid base or axels with wheels options
- IP54 rated enclousures
- Oil filled or dry type transformers
- Voltage ratings of up to 11kV
- Copper or Aluminium winding Transformers with ratings up to 800kVA
- LV compartments specifically customised to clients requirements
- MV compartment suitable and type tested to house most leading RMU types
- SF6 RMU versions fully internal arc type tested
- Compliant to SANS 1029, SANS780, IEC 62271-202
- Lifting lugs for easy manoeuvrability
Bulk Metering Units/Metering Units
ACTOM MV Switchgear is a local manufacturer of outdoor bulk metering units (BMU’s) complying with NRS 099 and indoor air insulated free standing metering units. Our units have been developed as a cost effective method of reticulating power to residential, industrial and development areas where a specific requirement for metering exists. BMU’s generally consist of a steel enclosure housing an MV ring main switch, a MV metering compartment housing CT’s and VT’s and MV consumer connection compartment. The BMU’s are also available in a high risk version, manufactured of 6mm steel with protected and or electronic locking. All our units are type tested to the latest local and international standards to ensure performance as well as public and operator safety. The free standing metering units are designed for indoor application consisting of in and out cable boxes with type “C” interface as well as a metering chamber housing the CT’s and VT’s.
- Suitable for inland (mild steel) or coastal (3CR12) application
- Standard or high risk versions available
- IP54 rated outdoor enclosures
- Voltage ratings of up to 24kV
- Metering compartments customised to clients requirements
- Air insulated CT/VT combinations or fully screened solutions
- MV compartment suitable to house most leading RMU types
- Internal arc type tested MV compartment
- Compliant to IEC62271-202
Pad Mounted Transformer Kiosks (PTK)
ACTOM Medium-Voltage Switchgear offers pad mounted transformer kiosk (PTK) type compact substations, designed and manufactured in accordance with IEC 62271-202, for the purpose of wind and solar generation applications. A PTK typically consists of the following components and can be customised to suit the user's requirements and specification.
- An internal arc classified (IAC) medium-voltage (MV) compartment containing a 36 kV gas insulated 2-way, 3-way or 4-way ring main unit (RMU).
- A 36 kV RMU with a circuit breaker function (i.e. fitted with self-powered protection relay) connecting via fully screened XLPE-insulated cables and plug-in Type 4 screened separable connectors to SANS 876 to the transformer.
- A 33 kV / LV transformer with ratings up to 3.4 MVA. (Higher ratings available upon request)
- A combination of flexible and solid copper busbars used to connect from the transformer secondary side bushings to the LV ASSEMBLY i.e. low-voltage circuit breaker (optional) and busbar assembly.
- Low-voltage busbar assembly suitable for connection of up to 14 x single-core cables per phase.
- An LV / 230 V auxiliary transformer (optional) for AC distribution within the PTK.
- All of the above equipment is contained in a housing manufactured from galvanised mild steel and/or 3CR12 that allows access to the equipment for operation and maintenance.
E-House/Containerised Solutions
ACTOM Medium-Voltage Switchgear offers turnkey E-house or containerised substation solutions. Together with our approved container/enclosure suppliers we offer package substation that eliminates the need for erecting a building on site. The package substations can be customised and manufactured to suite all MV applications. The substations are supplied complete with MV equipment, LV auxiliary equipment, battery tripping units and communication systems. All products in our Indoor offering can be incorporated into these substations.
- Suitable for inland or coastal applications
- Customised to suite project requirements
- E-house or converted marine container options
- Galvanised base or skid mounted
- Provision for bottom MV cable entry.
- Split rooms can be offered
- Optional safari roofs can be provided.
- Raised units can be offered with stairways and steps.
- Fire detection and protection can be fitted as an option
- Full range of air conditioners and pressurisation fans can be provided
- Fitted with equipment with rated voltage up to 33kV
- All Internal wiring and cabling provided
- Arc ducting to the outside as an option
