UTEC

Company Profile

United Transformers Electric Company (Utec), a subsidiary of Bawan, was founded in 2001 as a limited liability company. Over the past few years, Utec has built a strong presence in the local, regional and international markets as a leading company in the field of manufacturing distribution transformers. The company is a joint venture between "Bawan" and "Wilson Transformers", a leading manufacturer of power and distribution transformers in Australia since 1933.

 

 

Utec, which is based in the Second Industrial City in Riyadh, employs a team of 450 administrative engineers, employees and technicians, who are committed to achieving the highest levels of engineering design, production, quality and customer satisfaction in domestic and foreign markets.

Products

Utec applies the most advanced industrial technologies, taking advantage of the technical cooperation agreement with "Wilson Transformers" in Australia. The company focuses its efforts on the production of a full range of modern electrical hermetically sealed transformers, integrally filled with oil. The company also works on designing and manufacturing custom-made products to meet the customer’s needs of various key sectors.

The company is committed to a clear institutional vision that aims to achieve the highest levels of customer satisfaction by providing services and products that meet the expectations of customers in terms of quality and efficiency, and by matching best manufacturing practices and the highest international standards.

 

Achievements

Over the past few years, Utec has gained a major share of the electrical transformers market in Saudi Arabia. Since its inception in 2001, the company has succeeded in supplying local, regional and international markets with high-quality distribution transformers. Utec’s products are very popular regionally and internationally, as they are exported to major neighbouring markets, particularly in the GCC, as well as to some markets in the Middle East, Africa and Europe. The company has also signed many contracts and agreements with leading public and private entities locally and regionally, which seek to take advantage of the high potential, extensive expertise and advanced technology applied by Utec. Utec applies the highest manufacturing standards and the best international systems and practices to ensure the highest levels of insulation and operational efficiency for its electrical transformers. In recognition of its tireless efforts to ensure quality standards and excellence, the company has acquired many of the world's most prestigious certifications, including:

• Several test certificates from KEMA International laboratories in Netherlands.
• Several quality certificates from electrical engineering laboratories at King Saud University in Riyadh
• ISO 9001
• International safety certificate BS OHSAS 18001-2007
• Saudi Arabia Standardization Organization certificate SASO
• Saudi Quality Council - SQC Certificate

Utec Products

Distribution transformers, Oil filled (Hermetically sealed & Breathing type) as per IEC-60076, ANSI/IEEE standards, from 25kVA to 5,000kVA up to 36kV (HV) & 1,100V (LV).

LV/LV Transformer from 25 KVA to 200 KVA.

• Pole Mounted Transformers
• Ground Mounted Transformers
• Substation Transformers
• Unit /Package Substation
• Special Application Transformer

 

 

Pole Mounted Transformers

 

Pole-mounted distribution transformers are mounted above ground on poles. These transformers are manufactured to standard designs, primarily for power distribution companies. These transformers typically service urban and rural residential and commercial loads.

Utec’s Pole Mounted Transformers are oil immersed hermetically sealed type which are designed, manufactured and tested according to IEC 60076 and its equivalent standards. The tank is designed to accommodate expansion of oil during loading through the use of corrugated steel sheets. The Primary bushings are provided on the bolted top cover, while Secondary bushings on side wall enclosed by air insulated cable box. Both Primary and Secondary bushings can also be provided on top cover as per required specification.

The windings are generally made up of copper. However, Aluminum windings can also be offered. All the standard designs have been proven by type testing including impulse, temperature rise, sound level and short circuit tests. Utec’s pole-mounted distribution transformers share the following features: 

• Compact design, Low-noise and light in weight.
• Economic and efficient to reduce network loss and working cost.
• High reliability in operation.
• Low temperature rise and long service life.
• High short circuit and insulating strength.
• Overload capability in compliance with IEC 60354.
• Sealed construction to prevent moisture entry.
• Extended creepage HV bushings as standard execution.
• Utec’s standard proven surface treatment.
• Flexibility in designing transformers to meet customer requirements (Optimum cost)
• Competitive short delivery time.

Product Range:

• Rating up to 315 kVA (Single & Three Phase)
• Primary voltage up to 36 kV (200 BIL)
• Secondary voltages up to 1000 V (30 BIL)
• Frequency: 60Hz, 50Hz, 50/60Hz
• Vector group: Dyn11 (other vector groups can also be provided on request)
• Insulation: Class A
• Cooling: ONAN / KNAN
• Available fluids: mineral or silicon oil (Other fluids can also be filled on request) 

Standard Accessories:

• HV Bushings
• LV Bushings
• Dial Type Oil Thermometer
• Pressure Relief Device
• Oil Level Indicator With Filler Stack
• Off-circuit Tapselector
• Oil Drain Valve
• Earthing Terminals
• Lifting Lugs

Optional Accessories (If required):

• Dial Type Oil Thermometer With Two Contacts
• Pressure Relief Device With Two Contacts
• Oil Level Indicator With Two Contacts
• Arcing Horns
• Thermometer Pocket
• Arrestor Mounting Bracket
• Marshaling Box
• DMCR Protection Relay (DGPT2)

 

 

Ground/Pad Mounted Transformers

Pad-mounted transformers are generally mounted on the ground for underground distribution networks. These types of transformers are generally used for urban and rural residential, commercial and industrial loads.  These units are generally equipped with cable boxes or compartments for terminating the cables on HV and LV bushing terminals.

Three pre-engineered arrangements are available, determined by the customer requirement and standard:

• Cable boxes with HV and LV terminals either at opposite sides of the tank or on the lid.
• Compartments with HV and LV terminals on same side of the tank comply with ANSI / IEEE standard. HV side is dead or live front which is arranged either for loop or radial feed.         

Utec’s Pad Mounted Transformers are oil immersed, generally hermetically sealed type. The tank is designed to accommodate expansion of oil during loading through the use of corrugated steel sheets. Sealed type tanks with detachable radiators  having gas space which is normally filled with Nitrogen on top of oil  or free breathing type having oil conservator can also be offered as per customer requirement.

The windings are generally made up of copper. However, Aluminum windings can also be offered. All the standard designs have been proven by type testing, including Impulse withstand, temperature rise, sound level and short circuit tests. Utec’s pad-mounted distribution transformers share the following features: 

• Safe, reliable and easy for operation.
• Compact design and aesthetic appearance.
• Economic and efficient to reduce network loss and working cost.
• Low temperature rise and long service life.
• High short circuit and insulating strength.
• Low noise.
• Utec’s standard proven surface treatment.
• Robust construction for long time transportation under various conditions.
• Flexibility in designing transformers to meet customer requirements (Optimum cost)
• Competitive short delivery time.

Product Range:

• Rating up to 4.0 MVA (Three Phase)
• Primary voltage up to 36 kV
• Secondary voltages up to 24 kV
• Vector group: Dyn11 (other vector groups can also be provided on request)
• Frequency: 60Hz, 50Hz, 50/60Hz
• Insulation: Class A
• Cooling: ONAN / KNAN
• Available fluids: mineral or silicon oil (Other fluids can also be provided on request)

Standard Accessories:

• HV Bushings
• LV Bushings
• Dial Type Oil Thermometer
• Pressure Relief Device
• Oil Level Indicator With Filler Stack
• Off-circuit Tapselector
• Oil Drain Valve
• Earthing Terminals
• Lifting Lugs
• Silica gel Breather (for Breathing type)
• Load Break Switch (for ANSI/IEEE standard)
• Bay-O-net Fuses (for ANSI/IEEE standard)
• Load Break Dry Well Fuse Holder (for ANSI/IEEE standard)
• Pressure Vacuum Gauge (for ANSI/IEEE standard)

Optional Accessories (If required):

• Dial Type Oil Thermometer With Two Contacts
• Pressure Relief Device With Two Contacts
• Oil Level Indicator With Two Contacts
• Double Float Buchholz Relay With Contacts (for Conservator type) 
• Winding Temperature Indicator with Two Contacts.
• Thermometer Pocket
• Filter Valve
• Marshaling Box
• Bi-directional rollers
• DMCR Protection Relay (DGPT2)
• Expulsion Fuses (for ANSI/IEEE standard)

 

Substation Transformers

These types of transformers are an integral part of compact substations which fully encloses a transformer, HV and LV connections or switchgear, and is shipped to site fully assembled. These are widely used in areas where underground power distribution is required, such as in residential, commercial and industrial developments.

Utec’s Substation Distribution Transformers are oil immersed hermetically sealed type. Flexible corrugated tank walls or radiators enable sufficient cooling of the transformer during operation. Generally HV and LV bushings are mounted on bolted top cover. HV bushings are Plug-In type while LV flat bars type. The Porcelain type bushings can also be supplied as per customer requirement.

The windings are generally made up of copper. However, Aluminum windings can also be offered. All the standard designs have been proven by type testing including impulse, temperature rise, sound level and short circuit tests. Utes’s substation distribution transformers share the following features:

• High integrity, compact design and aesthetic appearance.
• Portable.
• Weather and vermin proof.
• High security
• Economic and efficient to reduce operation cost.
• Safe, reliable and easy for operation.
• Sealed construction to prevent the entry of moisture.
• Low temperature rise and long service life.
• Low noise.
• Utec’s standard proven surface treatment.
• Robust construction for long time transportation under various conditions.
• Flexibility in designing transformers to meet customer requirements (Optimum cost)
• Competitive short delivery time.

Product Range:

• Rating up to 4.0 MVA (Three Phase)
• Primary voltage up to 36 kV
• Secondary voltages up to 1000V
• Frequency: 60Hz, 50Hz, 50/60Hz
• Vector group: Dyn11 (other vector groups can also be provided on request)
• Insulation: Class A
• Cooling: ONAN / KNAN
• Available fluids: mineral or silicon oil (Other fluids can also be filled on request)

Standard Accessories:

• HV Bushings
• LV Bushings
• Dial Type Oil Thermometer
• Pressure Relief Device
• Oil Level Indicator With Filler Stack
• Off-circuit Tapselector
• Oil Drain Valve
• Earthing Terminals
• Lifting Lugs

Optional Accessories (If required):

• Dial Type Oil Thermometer With Two Contacts
• Pressure Relief Device With Two Contacts
• Oil Level Indicator With Two Contacts
• Winding Temperature Indicator with Two Contacts.
• Thermometer Pocket
• Filter Valve
• Marshaling Box
• DMCR Protection Relay (DGPT2)

 

Unit/Package Substation Transformers

 

Unit/Package substations are coordinated assembly consisting of three phase transformer, HV ring main unit and LV distribution panel. These are widely used in areas where underground power distribution is required, such as in residential, commercial and industrial developments.

Utec’s unit/package substation transformers are oil immersed hermetically sealed type. Flexible corrugated tank walls enable sufficient cooling of the transformer and compensate for changes in the oil volume due to temperature variations during operation.

The windings are generally made up of copper. However, Aluminum windings can also be offered. All the standard designs have been proven by type testing including impulse, temperature rise, sound level and short circuit tests. Utec’s substation transformers share the following features: 

• High integrity, compact design and aesthetic appearance.
• Portable.
• Weather and vermin proof.
• High security
• Economic and efficient to reduce operation cost.
• Safe, reliable and easy for operation.
• Sealed construction to prevent the entry of moisture.
• Low temperature rise and long service life.
• Low noise.
• Utec’s standard proven surface treatment.
• Robust construction for long time transportation under various conditions.
• Flexibility in designing transformers to meet customer requirements (Optimum cost)
• Competitive short delivery time.

Product Range:

• Rating up to 4.0 MVA (Three Phase)
• Primary voltage up to 36 kV
• Secondary voltages up to 1000V
• Frequency: 60Hz, 50Hz, 50/60Hz
• Vector group: Dyn11 (other vector groups can also be provided on request)
• Insulation: Class A
• Cooling: ONAN / KNAN
• Available fluids: mineral or silicon oil (Other fluids can also be filled on request)

 Standard Accessories:

• HV Bushings
• LV Bushings
• Dial Type Oil Thermometer
• Pressure Relief Device
• Oil Level Indicator
• Off-circuit Tapselector
• Oil Drain Valve
• Earthing Terminals
• Lifting Lugs

Optional Accessories (If required):

• Dial Type Oil Thermometer With Two Contacts
• Pressure Relief Device With Two Contacts
• Oil Level Indicator With Two Contacts
• Thermometer Pocket
• Filter Valve
• DMCR Protection Relay (DGPT2)

 

Special Application Transformers

 

Utec also manufactures a range of other special application transformers including:

• Converter Transformers.
• Rectifier Transformers.
• MV-MV Distribution Transformers
• LV-LV Distribution Transformers
• Earthing Transformers with or without auxiliary winding.
• Auto Transformers