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Containerized & Compact Substations

Containerized Type

- The containerized substation systems are manufactured in 20ft or 40ft arrangements depending on the customer requirements.

- The containerized substations are normally constructed that they can be easily installed on any construction site with a medium voltage as the container has a medium voltage section, transformer section, and a low voltage section.

- The containerized substation systems can be configured to supply systems up to 4mva power distribution for construction sites.

- These containerized substations are also to the required international standards or to the local authority requirements in the country they will be used.

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Compact Tunnel Substations (CTS or MTS)

- The substations systems are designed to operate in a confined space area such as tunnels or other mining applications such as NATM systems and they are rated to IP65 when they required to operate in these conditions.

- The “CTS” systems are designed loads from 250kva to 3000kva to even be installed in tunnels and on TBMs backup systems for the LV distribution of power or for STS systems in tunnels to supply power to the system for the slurry transport pumps.

- They can also be used to supply power to surface equipment or conveyor belt systems with the medium voltage reticulation distributed through the RMU system which makes the system flexible to use at any time.

- The “MTS” systems are used where the loads to operated will be normally from 100KVA to 500KVA in very small tunnels for pipe jacking machines, smaller diameter TBM tunnels and cross passage works during the construction with the power distribution from MV/LV or LV/LV depending on the loads or the customers' power requirements

Tunnel Lighting Systems

Tunnelux Lights have been developed to meet the specific needs and requests of Tunnel construction and Mining industries. The lights are higher efficiency LEDs in rugged IP67 fittings giving more light per kW, longer runs underground, and lowers power bills. Sizes range from 12W to 250W and can meet any job site and underground requirement with a large range of cable and plug options.

- Increased light output by 30-70% over standard fittings of similar power currently being used.

- Longer runs at 110V or 240VAC on reduced cable sizes. (in turn reduced cable cost and fewer lights)

- Better lighting levels and hence safer workspace PLUS options for large underground diameters/areas.

- Reduced power consumption.

- Decreased toxic PVC plastics in the lights by 43% on standard fittings supplied with  LSOH Cabling.

- Increased IP rating to IP67 plus lights can be hot washed.

- Full Emergency Lighting of the system

– EVERY Light ON. - Works on Voltage ranges from 85VAC to 277VAC.

- Utilized fully round fitting avoiding an easy build-up of dust/concrete.

- Options for multiple colors for Safety directions. (Green, Amber, Red, Blue)

- Removed the troublesome batteries from the lights. (Also see Swiftline boxes)

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TLXH Lights extremely compact IP65 Hi-Efficiency Hi-Power area lights ideal for work areas, cross-passage works, etc. ranging from 8,000lms to 50,000lms

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MLXD Lights are DC lights that are available in 24VDC or 48VDC and are an ideal rugged light for fitting to machines needing IP67 mobile lighting. A range of Low Voltage (LV) quick connect plugs are ideal for installation by non-electrical labor.

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Backfill Grout Plants

Two-Component Backfill Grout Plant System  SG has developed the two-component Grout Backfill Groutplant system for the tunneling industry to supply grout to the TBM’s in the tunnels when they need to do grouting behind the precast segments during excavation time. The system is an open type system where the mixing systems can be placed directly underneath the silos with a very short screw conveyor to transfer the material to the weighing hopper of the mixing system. The mixing system is a conical type of mixing of the components where the searing of the bentonite and the cement can happen with a product with no balls in the mixture. The bentonite is a premixture also as it is prepared in advance to ensure that it can dehydrate to give a product that is of better quality before it will be used. The system can also be interphase with the TBM side to control the supply of material only when needed during the tunneling excavation. 

Technical Data:
Control: Auto/Manual
Voltage Requirement: 415v
Type: Open / Containerised
Capacity: 8m³/Hr – 18m³/Hr
Communications Interphase: Network/ Fiber Optic to TBM

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Couplers

Couplers

- Electrical Cable entry for SWA or UA

-Complete phase segregation, no phase-to-phase failures

- Contact quantity and type: 3 Pin and 1 pilot (2 pilots optional)

- Connector type: Bolted half coupler

- Current rating: 800A & 400A

- Flameproof certified

- Housing: Brass or Pro-Alloy

- Individually screened insulators

- New shorter body: Less weight, easier to handle

- Phase conductors: Copper

- Pilot: Brass

- Voltage: 11 000V up to 22 000V

(SG Electrical do fit couplers to cables if required). 

Power Transformers

We are a distributor for Thai Trafo Transformers which are manufactured to international standards or type-tested when required for different permanent infrastructure power distribution when needed and below is some general information of transformers we can supply to our customers for their applications.

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Oil Cooled Transformers  

- Installation Outdoor or Indoor.

- Cooling Systems Oil-immersed self-cooled or oil-immersed forced-air cooled.

- Three-phase or single-phase.

- No more than 5 taps for a tap range within ± 5% of rated voltage.

- Hermetically sealed tank type.

- Oil Types are Mineral, Silicone oil, FR3 Oil.

- 100KVA - 500MVA up to 420KV

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Cast Resin Dry Type Transformers

- Up to 25 MVA and with a maximum voltage rating of 36 kV.

- Rated power can be increased %40 by cooling fans.

- The partial discharge parameter that specifies the transformer lifetime is <5 pC in our dry-type transformers.

- LV winding is made of aluminum or copper coils according to the customer request.

- High voltage windings are made of flat or round aluminum or copper wire with F or H Class insulation material.

- The core is made of the highest quality, cold-rolled grain-oriented silicon steel.

Standards – (IEC 60076-11, IEEE C57.12.01, BS EN 50541-1, CSA-C9, IEC-60076, BS-171, ANSI C-57, JEC-204, JEC-2410, JEC-2200,etc)

 Electrical Cables

Medium Voltage (MV) Cables

We offer XLPE or HEPR type of cables for the energy supply of MV equipment, in tunneling and underground mining applications. These cables can also have an outer sheath as to customer requirements or the required international standards. Our medium voltages cables are primarily used as an MV feeder cable for the power supply to TBM systems in tunnels, opencast mining equipment, and underground mining equipment. These cables do have pilots and can also be fitted with couplers as required by the customers to ensure that the safety of the system can always be monitored when they are powered during operations.                        

Low Voltage (LV) Cables

The types of low voltage cables we supply are also designed to the application in the industry for e.g. construction, mining, and oil/marine/gas sectors with the voltage range to 1000V with different outer sheaths to the environment they will be installed or operating.   The manufacturing of these cables also will comply to the following international standards.  

Standards - (SS358-3, BS EN 50525-2-31, IEC60227-3, IEC60502-1, IEC60228, IEC60754, IEC61034, AS/NZS 5000.1, IEC60502-2)