MV Switchgear Products
- Single Phase Recloser
- Medium Voltage Switchgear
- SF6 GAS Insulated Switchgear
- Low Voltage Switchgear Control Panel
- Protection Panel Metering Box
- Power Distribution Panel Board
- Ring Main Unit
- Medium Voltage Load Break Switch
- Pole Mounted Vacuum Load Break Switch
- MV Circuit Breaker
Lighting Arresters
Lighting arresters provide active over voltage protection that contributes directly to improved reliability of your system, reducing lost minutes and protecting expensive assets.
The arrester has been designed and type tested according to IEC60099-4:2004 standard.
Drop Out Fuses
We are instrumental in supplying and trading a wide gamut of silicon composite drop out fuses. Manufactured using high quality raw material, all our products are designed in compliance with international quality standards.
- Rated Voltage Ur, kV
Heat Shrinkable Cable Termination
For connection of cable to switchgear terminal, transformer terminal, poles etc. termination kits are required. The Heat Shrinkable Termination kits can be used indoors or outdoors based on actual application.
- C. Voltage withstand
- Dry: A.C. 35 kV/I min.
- Wet: A.C. 35 kV/ I min.
- DC Voltage withstand 48 kV for 30 min.
- Impulse Voltage withstand 75 kV 10 + VE and 10 - VE Shots
There are a wide range of cable jointing systems available today, which can be classified by the way they are applied, such as:
- Taped type
- Pre-moulded/push-on/slip-on type
- Cold application type
- Heat shrinkable type
The selection criterion for an appropriate type of cable jointing system by the user should be dependent on the site conditions, operating parameters, voltage applications and cable types.
- Low noise operating functions over conventional ceramic distribution cut-outs
- Silicon polymeric type cut outs used with non-damageable silver or nickel coated fusible elements
- Also these fuse will detect and interrupt all faults large, medium, and small it will provide safety to your transformers and minimize line interruption
- Reliable fault protection
- Perfect drop out action
- Reliability at distribution line save maintenance cost and time
- Lightweight, easy installation
- Vandal proof
- Reduce transportation breakage
- Excellent in polluted atmospheric environment
- Very good hydrophobic property
- Higher creepage distance
- Better aesthetic new generation material
- Upper and lower contacts made of electrical copper with silver plating
- Fuse Tube: ARC extinguishing tube obtained using fibre glass material and manufactured from automatic pultrusion plant
- Stainless Steel Fipper: Work as fuse leader positioner, and as insulation from contamination and corrosion
- Brid proof design polymer insulator
- This design protect against earthing birds prevent birds fault
- Silicon sheds provides higher creepage distance, good resistance to ageing, tracking, and erosion
- Silver plated parts: High electrical conductivity due to electrolyte copper plated with silver plating rendering excellent corrosion resistance property
- Load break hook: Provided with portable load break tools
- Stainless steel hinge support: The stainless steel hinge support provides additional protection for areas of extreme contamination
- Dielectric test
- Mechanical test
- Breaking test
- Temp. rise test
- Dry power frequency voltage withstand test
- Wet power frequency voltage withstand test
- Lightning impulse voltage withstand test
- Temperature rise test
- Physical operation test
15 KV, 24 KV, 33kv, 35Kv
Distribution Transformer
3.3kV, 6.3kV, 6.6kV, 11kV (13.2kV/13.8kV/15kV/20kV/22kV/33kV/34.5kV) to 0.38kV, 0.4kV, 0.42kV, 0.44kV up to 25000kVA
The dynamical and thermal stability of this transformer, of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets processes and interior and exterior structure.
- Rated voltage:
- 3kV
- 3kV
- 6kV
- 11kV
- 2kV
- 8kV
- 15kV
- 20kV
- 22kV
- 33kV
- 5kV
- Rated power:
- 50kvA~2500kva
- Two windings or three windings
- On-load or no-load voltage tapping changer
- Frequency:
- 50HZ /60HZ
- Vector group:
- Dyn5
- Dyn11
- Ynd11
- Yna0d11
- or others
- Cooling:
- ONAN
- ONAF
- OFAF
- Tap changer: Optional
- Rating plate: Yes (Rockwell brand or Customer brand)
- Corrugated refrigeration panels: Yes (Four sides of the transformer shell)
- Oil draining valve
- Oil level indicator
- Thermometer
- Oil conservator
- Relay
- IEC 60076 power transformer
- 3, 5-2003 power transformer power transformer
- GB/T6457-1999 3-phase oil immersed power transformer technical parameters and requirement
- Transformer normal service condition:
- Type: Outdoor type
- Normal use environment: Elevation less than 1000m;
- Temperature range:-25 °C- +40°C
- Especial environment: Elevation more than 1000m;
- Temperature range:-45 °C- +40°C
- Installation site: Nothing corrode air, noting obvious dirty mark
Composite Insulators
- Composite insulatorsmade of the highest quality silicon rubbers
- Types: Composite tension insulator, composite suspension insulator, braced insulator, substation composite post insulators, composite pin insulators, railway composite insulator
- Rods made out of ECR-FRP
- Design up to customer requirements
- Fast delivery times
- From 10-750 KV
- Max SML: 500 kN
- Creepage distance according to customer requirement
- Standards:
- IEC 61952
- IEC 61109
- End fittings:
- Hot deep galvanized steel
- IEC 60120, IEC 6047, IEC 61466-1
- Voltage level: 3 – 52 kV
- SML: 200 kN
- SCL: 20 kN
- Connecting Length: up to 2 m
- Standards
- IEC 61952
- IEC 61109
- End fittings:
- Hot deep galvanized steel
- IEC 61109
- or according to costumer requirement
Compact Substation
Our compact substation units have high-fire-point fluid, providing fire safety benefits, and a projected life well beyond that of a traditional mineral-oil transformer.
Three-phase, pad-mounted transformers, for use on underground power distribution systems, are best suited for commercial applications in public access areas and where underground service is required. These transformers meet modern design requirements for flexibility and provide a visually pleasing installation.
Construction allows installation in locations accessible to the general public without the need for protective fencing or vaults. These units are ideally suited for apartment buildings, schools, hospitals, shopping centres, commercial buildings, or industrial sites.
- Sealed tank construction
- Special waste disposal considerations
- Insulation temperature limit: 120 °C
- Temperature rise: 65 °C (standard); 55 °C or 55/65 °C (optional)
- Special sound requirements
- Special altitude requirements
- Retrofit designs
- Higher efficiency requirements
- Special ambient conditions
- IEEE C57.12.00: Standard general requirements for liquid-immersed distribution, power, and regulating transformers
- IEEE C57.12.34: Requirements for pad-mounted, compartmental-type, self-cooled, three-phase distribution transformers, 2, 500 KvA and smaller: high voltage, 34, 500 grdy/ 19, 920v and below; low voltage, 480v and below
- IEEE C57.12.28: Standard for pad-mounted equipment, enclosure integrity
- IEEE C57.12.70: Standard for terminal markings and connections for distribution and power transformers
- IEEE C57.12.80: Standard terminology for power and distribution transformers
- IEEE C57.12.90: Standard test code for liquid-immersed distribution, short-circuit testing of distribution and power transformers
- IEEE C57.13: Requirements for instrument transformers
- ANSI/IEEE 386: Separable insulated connector systems for power distribution systems above 600v.
- ASTM D877: Test method for dielectric breakdown voltage of insulating liquids using disk electrodes.
- NEMA AB1: Moulded case circuit breakers.
- NEMA TR1: Transformers, regulators, and reactors.