Emirates Transformer & Switchgear Ltd.

Dubai, United Arab Emirates

We manufacture a wide range of package substations which primarily comprise of the transformer, high voltage main Unit and voltage feeder pillar. The entire assembly is mounded on a common base to facilitate lifting and hauling as an integral unit. The transformer terminations have flanges, which match the corresponding ones on the switchgear side. The inter connection between the high voltage side of the transformer and high voltage Ring Main Unit is done by means of either an oil filled trunking or with plug-in elbow connectors with cable. The low voltage Feeder Pillar is directly mounded on the corresponding flange of the transformer. Depending on customer's requirements, we can provide Ring Main Unit and Feeder Pillar on opposite sides or on the one side of the transformer. Furthermore, if required by the customer, we can also supply appropriate housing for the substation unit. Typically, the material used for the housing can either be GRP, sheet steel, ALUZINC, or Aluminum. The housing whenever, provide, is also fitted with the necessary ventilators and has suitable doors for easy access to the units. The substations are completely weather proof and are suitable for indoor or outdoor use.

This is installed at a small angle (sloping from conservator to cover) between the conservator and the cover plate. Generally, isolating valves are provided on either side of the relay. A separate gas relay is provided for the conservator or partition for the on-load tap changer. The isolating valves help in opening or removal of the gas relay for inspection or maintenance purposes, without having to drain the oil from the conservator. The gas relay has alarm and trip contacts. The relay can be provided with a gas-sampling valve, which can be located at a convenient height for ease of use.

Since our establishment, in 1987, as the pioneer of transformer manufacturing in U.A.E., we have grown steadily over the years, gaining much experience in manufacturing, at first, Distribution Transformers and thereafter, moving into, slightly higher rating Power Transformers. Having achieved the status as an accomplished manufacturer of Distribution & Power Transformers up to 31.5MVA, 33kV class, ETS has invested much in upgrading its infrastructure to support manufacturing Power Transformers up to 40MVA 72kV class. The company has executed many prestigious orders for transformers of ratings above 10MVA – for example, supply of 10 MVA to 31.5MVA power transformers in Oman, UAE, Jordan, Qatar, Uganda, Kenya 12.5MVA power transformers in Saudi Arabia, 20MVA, 66kV class power transformer in Qatar and 25MVA generator transformers in U.A.E. The successful supply of 31.5MVA transformers to a private utility in The Netherlands marks another milestone for us at ETS! By taking up repairs of larger transformers such as 44MVA in Sharjah, U.A.E., 30MVA in Qatar and 43MVA in Dubai, U.A.E., we are also bringing into the scope of our vision our ability to service the Power Transformer industry. As an independent company, we have dedicated our people, technology, financial resources and manufacturing expertise to add value to our customers' needs. In addition to having extended our product line, we have also developed a technological, administrative and marketing infrastructure that is comparable with some of the finest manufacturers of similar products worldwide. ETS is uniquely focused on becoming one of the most valued global providers of power & distribution products for utilities and industry.

Main & Sub Main Panels Ratings Upto 4000 Amps Incomers ACB, MCCB, Load Break Switch with or without metering Busbars H.C.H.D. Tinned Copper Outgoings ACB, MCCBs, Fuse Switches, Fuses Enclosure IP5554/, Sheet Steel Freestanding/Wall mounting Epoxy Powder coated to Light Grey color RAL 7032 Motor Control Centers Ratings Upto 4000 Amps Incomers ACB, MCCB, Load Break Switch Busbars H.C.H.D. Tinned Copper Outgoings Soft starters, Y-D, DOL, Autotransformer starters with fuses, MCB, MCCB, as backup protection Enclosure Freestanding/Wall mounting, IP5554/, Sheet Steel/GRP

ETS specializes in the manufacture and supply of step-lap cut cores & stacked cores. The iron cores are manufactured with cold rolled grain oriented electrical sheet steel having thicknesses of 0.30 mm, 0.27 mm and 0.23 mm. In power transformers, these are also of the HiB variety (including laser-etched material), depending upon the required no- load loss levels. The most economical cross section is achieved by proper selection of particular widths. All our cores are of cruciform section and are of the core type (3 limbs with no outer return paths). The laminations are thinly insulated on both sides, allowing for a good stacking factor for the core. The equipment for cutting comprises multiple fully automatic CNC core-cutting machines, supplied by GEORG, Germany. It can handle upto 600mm widths. Laminations are automatically stacked using a brake hammer. All the cores are mitred and step lap cut which gives a benefit in no-load losses and noise level. For ratings up to 8MVA, we can have wooden clamping structure made up of compressed resin bonded wood pressure plates and beams. In higher ratings, the clamping structure is a combination of wooden compression rings pressed and held in position by steel clamps. The limbs have no compression bolts (core bolts). In their place, we use glass fiber bonds (tightened insulated bonds). The compression at the ends of the clamping structure is maintained by core end bolts.