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Air-insulated Switchgears (AIS)
In AIS, the electrical components are housed in metal enclosures, and the space between the conductors is filled with ambient air. The main components of air-insulated switchgear include circuit breakers, busbars, and disconnectors.
VHIH: 12/17.5kV Air Insulated Switchgear
- Rated Voltage: 12/17.5kV
- Rated Current: Up to 4200A
- Rated STC: 25/31.5/40/50kA for 3 sec
- Internal Arc Fault: Up to 40kA for 1 sec
Rating
- Rated service voltage: 12/17.5kV
- Rated power frequency withstand voltage: 28/38kV
- Rated impulse withstand voltage: 75kV & 95kVp
- Rated current of VCB: 630~3150A
- Maximum rating of busbars: 3150A
- Short time withstand current: up to 50kA 3 seconds
- Fully rated / fault-make integral earthing switch
Benefits
- Space saving
- Safe operation behind closed door
- Ease of installation
- Breaker movement inside cubicle is independent of floor surface condition
- User friendly cable termination height and space
- Minimum operator training required
Construction/features
- Fully typed tested as per IEC62271-100/200/102
- Compact dimensions: 40kA IAF for 1sec in 600mm wide cubicle
- Generous air clearances for busbars
- Safe and fail-safe positive interlocks
- All operations behind closed door
- Fault make type earthing switch available
- Sliding door, easier locking
- Optional motorised rack-in and rack-out
- Fixed type, swing type and draw-out type VT options
- Block type or ring type CT options available
- Generous cable termination height
- Seismic Zone -V tested
VHID: 12kV Double Busbar Air Insulated Switchgear
- Rated Voltage: 12kV
- Rated Current: Up to 3150A
- Rated STC: 40kA for 3 sec
- Internal Arc Fault: 40kA for 1 sec
Rating
- Rated service voltage: 12kV
- Rated power frequency withstand voltage: 28/35 kVrms
- Rated impulse withstand voltage: 75kV & 95kVp
- Rated current of VCB: 630~3150A
- Maximum rating of busbars: 3150A
- Short time withstand current: 40kA for 3 seconds
- SCADA ready double busbar
Benefits
- Space saving
- Safe operation behind closed door
- Ease of installation
- Breaker movement inside cubicle is independent of floor surface condition
- User friendly cable termination height and space
- Minimum operator training required
Construction/features
- Fully typed tested as per IEC62271-100/200/102
- Disconnector/Isolator based double busbar. Ready for SCADA integration
- Compact dimensions: 40kA IAF for 1sec in 600mm wide cubicle
- Generous air clearances for busbars
- Safe and fail-safe positive interlocks
- All operations behind closed door
- Fault make type earthing switch available
- Sliding door, easier locking
- Optional motorised rack-in and rack-out
- Fixed type, swing type and draw-out type VT options
- Block type or ring type CT options available
- Generous cable termination height
- Seismic Zone -V tested
VH1H-S: 12kV Air Insulated Switchgear
- Rated Voltage: 12kV
- Rated Current: Up to 1250A
- Rated STC: 31.5kA for 3 sec
- Internal Arc Fault: up to 31.5kA for 1 sec
Rating
- Rated service voltage: 12kV
- Rated power frequency withstand voltage: 38kV
- Rated impulse withstand voltage: 95kVp
- Rated current of VCB: Upto 1250A
- Short time withstand current: 31.5kA for 3 seconds
Benefits
- Space saving
- Safe operation behind close door
- Ease of installation
- Breaker movement inside cubicle is less dependent of floor surface condition
- Extensible on both sides
- Minimum operator training required
- Internal Arc Fault tested for 1 second for 31.5kA
- Diffuser arrangement for internal arc safety
- Sufficient flood clearance for all live parts
Construction/features
- Fully typed tested as per IEC62271-100/200/102
- Compact dimensions
- Generous air clearances for busbars
- Safe and fail-safe positive interlocks
- Boltless door design
- All operations behind closed door
- Swing out type VT with in built fuse
- Block type or ring type CT options available
- Generous cable termination height
VH1F: 12kV Fixed VCB Air Insulated Switchgear
- Rated Voltage: 12kV
- Rated Current: Up to 2000A
- Rated STC: 25kA for 3 sec
- Internal Arc Fault: 25kA for 1 sec
Rating
- Rated service voltage: 12kV
- Rated power frequency withstand voltage: 28 kVrms
- Rated impulse withstand voltage: 75kVp
- Short time withstand current: 25kA for 3 seconds
- IAF tested at 25kA for 1 sec
Benefits
- Reduces cubicle space requirement and therefore saving in civil and last cost
- Mechanical endurance (M2) 10000 operations
- Safe operation behind close door
- Internal Arc classification AFLR 25kA 1 sec
- Voltage detection system (VDS) as standard offering
- Cost optimised solution for distribution networks
- Peace of mind with very less maintenance
- Option of fixed VT with draw out primary fuses
- Flexibility of accommodating higher numbers CT's
- Ease of operation with direct and self exploratory interlocks/indicators
Construction/features
- Fully typed tested as per IEC62271-100/200/102
- Compact dimensions: 25kA IAF for 1sec in 450mm wide cubicle
- Reduced substation dimensions saving civil and land costs
- Option for front, rear and dry type cable termination with cable entry from bottom and top
- Safe, positive and fool-proof interlocks
- Cable door & VCB interlocked
- Pad-lockable VCB & 3-position isolator duly interlocked
- Fully modular design with extension on both sides
- Fixed VCB with motorised mechanism for switching
- Front cable entry & no rear clearance required
- Position of 3 position switch directly and easily visible without opening any cover in addition to the indicator
VH2: 24kV Air Insulated Switchgear
- Rated Voltage: 24kV
- Rated Current: Up to 1250A
- Rated STC: 25/31.5kA for 3 sec
- Internal Arc Fault: up to 31.5kA for 1 sec
Rating
- Rated service voltage: 24kV
- Rated frequency: 50/60 Hz
- Rated power frequency withstand voltage: 50kV
- Rated impulse withstand voltage: 125kVp
- Rated current of VCB: 1250~2000A
- Maximum rating of busbars: 2000A
- Short time withstand current: up to 25kA 3 seconds
- Fully rated / fault-make integral earthing switch
Benefits
- Space saving
- Safe operation behind closed door
- Ease of installation
- User friendly cable termination height and space
- Minimum operator training required
Construction/features
- Fully typed tested as per IEC62271-100/200/102
- Compact dimensions
- Generous air clearances for busbars
- Safe and fail-safe positive interlocks
- All operations behind closed door
- Fault make type earthing switch available
- Sliding door, easier locking
- Optional motorised rack-in and rack-out
- Block type or ring type CT options available
- Generous cable termination height
VH3/VH3D: 36-40.5kV Air-Insulated Single & Double Busbar Switchgear
- Rated Voltage: 36 - 40.5kV
- Rated Current: Up to 2000A
- Rated STC: 25/31.5kA for 3 sec
Rating
- Rated service voltage: 36 - 40.5kV
- Rated frequency: 50/60 Hz
- Rated power frequency withstand voltage: 70~85kV
- Rated impulse withstand voltage: 170 - 185kVp
- Rated current of VCB: 1250~2000A
- Maximum rating of busbars: 2000A
- Short time withstand current: up to 31.5kA 3 seconds
- Fully rated / fault-make integral earthing switch
Construction/features
- Single and double busbar options
- Metal enclosed switchgear, fully compartmentalized
- Arc-proof construction
- Closed-door circuit breaker operation option
- Horizontal isolation, horizontal drawout
Gas-insulated Switchgears (GIS)
GIS uses sulphur hexafluoride (SF6) or other insulating gases as the insulating medium. SF6 allows for a more compact switchgear equipment design than air-insulated switchgear (AIS).
GV1N: 12kV Gas Insulated Switchgear
- Rated Voltage: 12/15kV
- Rated Current: Up to 2000A
- Rated STC: 25kA for 3 sec
- Internal Arc Fault: 25kA for 1 sec
Rating
- Rated service voltage: 12/15kV
- Rated power frequency withstand voltage: 38kV
- Rated impulse withstand voltage: 95kVp
- Rated current of VCB: Upto 2000A
- Short time withstand current: 25kA for 3 seconds
- Internal Arc: 25kA for 1 seconds
Benefits
- Suitable for highly polluted environment
- Safe operation behind close door
- Ease of installation sealed for life
- Peace of mind with almost zero maintenance
- Productivity maximisation
- No fire risk
Construction/features
- Compact foot print with rigid structure
- VCB with SF6 gas insulation Cable & Busbar are in air with touch proof connections
- No SF6 handling at site
- Safe, positive and fool proof interlocks
- Cable door & VCB interlocked
- Pad-lockable VCB & 3-position motorised isolator
- Fully modular design with extension on both sides
- SF6 content approx. 2.3 to 4Kg
- Optional top, rear cable entry available
- Option for busbar in SF6 gas
- Seamless integration of busbar with TAMCO’s 36kV type GV3N GIS switchgear
GV3/GV3D: 36kV Single & Double Busbar Gas Insulated Switchgear
- Rated Voltage: 36 - 40.5kV
- Rated Current: Up to 2500A for 31.5kA SBB & DBB
- Rated STC: 31.5/40kA
- Internal Arc Fault: up to 40kA for 1 sec
Rating
- Rated service voltage: 36 - 40.5kV
- Rated power frequency withstand voltage: 70~85kV
- Rated impulse withstand voltage: 170 - 185kVp
- Rated current of VCB: 1250~2500A
- Maximum rating of busbars: 2500A
- Short time withstand current: up to 31.5/40kA 3 seconds
- Fully rated / fault-make integral earthing switch
Construction/features
- VCB and busbar compartments insulation medium is SF6
- Safe, positive and fool proof interlocks
- Padlockable VCB and 3 position motorised isolator/disconnector
- Sufficient cable termination height
- Fixed type or draw out VT with isolatable version available
- Readily extensible
- Minimal maintenance
- Single and double busbar options
- Optional LCD display available for viewing isolator/disconnector position
GV3N: 36kV Gas Insulated Switchgear
- Rated Voltage: 36kV
- Rated Current: Up to 2500A
- Rated STC: 25/31.5kA
- Internal Arc Fault: up to 31.5kA for 1 sec
Rating
- Rated service voltage: 36kV
- Rated power frequency withstand voltage: 70/95kV
- Rated impulse withstand voltage: 170/195kVp
- Rated current:up to 2500A
- Maximum rating of busbars: 2500A
- Short time withstand current: 25/31.5kA 3 seconds
Construction/features
- Compact foot print with rigid structure
- VCB with SF6 gas insualtion Cable & Busbar are in air with touch proof connections. No SF6 gas handling at site
- Option for busbar in air/SF6 gas
- Safe, positive and fool proof interlocks
- Cable door & VCB interlocked
- Pad-lockable VCB & 3-position motorized switches
- Fully modular design with extension on both sides
- SF6 content approx. 4.5kg
- Front cable entry & no rear clearance required
- Optional top, rear cable entry available
Ring Main Units (RMU)
RMU is a compact, sealed, and metal-enclosed switchgear used in medium voltage electrical distribution networks. The term “ring main” refers to the network configuration, where power can be fed from multiple directions, creating a ring-like structure.
GR1: 12kV Ring Main Unit
- Rated Voltage: 12kV
- Rated Current: Up to 630A
- Rated STC: 20kA
Rating
- Rated service voltage: 12kV
- Rated frequency: 50 Hz
- Rated power frequency withstand voltage: 28/38kV
- Rated impulse withstand voltage: 75/95kVp
- Ring switch current rating: 630A
- Rotating arc circuit breaker rating: 630A
- Busbar rating: 630A
- Short time withstand current: up to 20kA 3 seconds
- Internal arc fault withstand: up to 20kA 1 second
- Full fault rated earthing switch
Construction/features
- Outdoor installation
- Totally sealed metal enclosed switchgear
- Extensible type available
- Tee-off circuit breaker with integral protection system
- Motorised mechanism available
- Integral cable test facility for ring switch (optional for tee-off circuit breaker)
- Protection relay and metering application option
- Flexible configurations – built up from basic building blocks consisting of ring switches and circuit breakers.
GR2-L: 24kV Modular RMU
- Rated Voltage: 24kV
- Rated Current: Up to 630A
- Rated STC: 21kA
Rating
- Rated service voltage: 24kV
- Rated frequency: 50 Hz
- Rated power frequency withstand voltage: 50kV
- Rated impulse withstand voltage: 125kVp
- Ring switch current rating: 630A
- Vacuumn circuit breaker rating: 630A
- Busbar rating: 630A
- Short time withstand current: up to 21kA 3 seconds
- Internal arc fault withstand: up to 25kA 1 second
- Full fault rated earthing switch
Construction/features
- Most compact foot print with rigid structure
- SF6 gas insulated switch
- Air insulated busbars and cable termination
- No SF6 gas handling at site
- Safe, positive and fool proof interlocks
- Cable door & earthing switch interlocked
- Pad-lockable VCB & 3-position motorized switches
- Fully modular design with extension on both sides
- SF6 content approx. 1.5kg
- Separate gas duct
- IAC 25kA for 1sec tested
Mobile/Prefabricated Substations
A facility within an electrical power system that houses switchgear and other associated equipment to control and distribute electrical power. Crucial in the transmission and distribution of electricity from high voltage to lower voltage levels, facilitating power supply to residential, commercial, and industrial areas.
Container Substations
Container Substations Unit
- Mobile standard container substation
- Fixed type standard container substation
- Non-standard switch-room or power control room
Transportable MV Substation
- TAMCO Transportable MV Substation, also known as TAMCO Transportable MV Switch Room, is an excellent total power solution for providing a very quick delivery of Medium Voltage substation. TAMCO can design and construct a Transportable MV Substation completed with all the required substation equipment and facilities for various aspects of application, with approximately half the cost and delivery time of a conventional concrete MV Substation.
- TAMCO Transportable MV Substation, you are ensured of safe and reliable power with minimum construction time and cost. It facilitates the work of new substations and restoration of old substations simple, fast and economical.
NQUBE-N substations
Container Substations Unit
- Mobile standard container substation
- Fixed type standard container substation
- Non-standard switch-room or power control room
Transportable MV Substation
- TAMCO Transportable MV Substation, also known as TAMCO Transportable MV Switch Room, is an excellent total power solution for providing a very quick delivery of Medium Voltage substation. TAMCO can design and construct a Transportable MV Substation completed with all the required substation equipment and facilities for various aspects of application, with approximately half the cost and delivery time of a conventional concrete MV Substation.
- TAMCO Transportable MV Substation, you are ensured of safe and reliable power with minimum construction time and cost. It facilitates the work of new substations and restoration of old substations simple, fast and economical.
Connecting Communities with Reliable Power
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