BN Mahto Group

ELEX offers a complete range of power and distribution transformers designed to grant the reliability, durability, and efficiency required in utility, industrial, and commercial applications.
 

Elex transformer offers a complete range from 10 KVA to 3000 KVA of the voltage class 11kv/400v , 33KV/11KV , 33KV /400V of power and distribution transformers designed to grant the reliability, durability, and efficiency required in utility, industrial, and commercial applications. Elex’s liquid-filled transformers are manufactured in accordance with the most demanding industry, international and NEA standards. Transformers can be used for indoor or outdoor applications and can be provided with off-load and on-load tap changers.
 

Small distribution transformers are typically oil-immersed and suitable for pole-, pad- or ground-mounting. They represent an economical option for certain networks, particularly those with low population densities. 

Depending upon requirements, transformers may be connected between two phases of a three-phase system (two high voltage bushings) or from one phase to ground (single high voltage bushing). 

The units are suitable for residential overhead distribution loads, as well as light commercial or industrial loads and diversified power applications.

Product scope 

 

                    "At KB Elex, we integrate best resources

                             to provide you Quality Solutions..."
 

Core, being the kernel and the key element of the transformers, is made of Cold Rolled Grain Oriented (CRGO) Magneticsilicon steel sheet of high quality. Elex uses core which is high magnetic materials for NEA specified transformer.

MOH Laser core is used for energy efficient low loss transformer, This makes it possible for Elex to design and produce rational, low-level loss transformers, which are durable to high magnetic induction. Advance designs with high precision yield production of low-level loss transformer cores, which are extremely resistance to high magnetic flux density. 

 

Coils 

Cylindrical coils are used in power and distribution transformers since they possess a significant endurance as opposed to the power generated in the course of short circuit events. Except for the HV coils used in small type distribution transformers, LV and HV conductors are isolated in wire insulator machine with very high insulation materials. In coil production, environmental friendly, cellulose containing insulator materials are used. 

LV coil in distribution transformer are produced by using paper insulated Flat Copper strip. However HV coil production is achieved by using round enamel insulated copper conductor are wound to form layer type, disc type high voltage coils etc are the primary techniques used in Elex production facility. 

 

The corrugated wall and all of the parts for tank and cover production for power and distribution transformer are made in our plant. The tank and cover are made of high quality sheet steel. Tanks and cover are manufactured with high tech equipment’s in accordance with the technical parameters and drawings of the specific design and projects with high quality standards. 

Prior to body coating of the tanks, detailed leakage test is applied. In line with customer demands, bushing coverage and cable box production is also available in the standards of NEA. 

 

After passing through the testing process successfully, transformer tanks need to be refined from lubricant, dirt and dust in order to enhance the contact of the dyestuff to adhere to the metal surface. Metal parts are undercoated with special safety primers once or several times. Since transformer tanks are subject to tough air condition for long years , they are coated with 105 micron thick, climate retardant paints. 
 

Building components that are the active part of the transformers are assembled in the installation phase. Coils are placed in the core. Tap changer, bushing and all other connections are assembled. Some parts are subjected to additional isolation against excessive stress. Active parts are reinforced to gain extra mechanical durability. Following the installation process, active part is subjected to drying process; the tanks are placed in oven chamber to extract the accumulated moisture. The drying process takes, the insulation materials used in transformers is aged more. Immediately after drying , the transformers are tanked and filled with pre-dried, degassed transformer oil. 
 

Each transformer is filled with high quality, clean and tested oil, which complies with BS148/84, IEC296 and NEA standards. 

 

 

 

In this method, the heat generated in the core and winding is transferred to the oil. According to the principle of convection, the heated oil flows in the upward direction and then in the radiator. The vacant place is filled up by cooled oil from the radiator. The heat from the oil will dissipate in the atmosphere due to the natural air flow around the transformer. In this way, the oil in transformer keeps circulating due to natural convection and dissipating heat in atmosphere due to natural conduction.

 

    • Pole Mounting Brackets/Base Channels

    • Magnetic and Mechanical Oil level indicator

    • Air dryer (Dehydrating breather with silica gel)

    • Oil temperature indicator

    • Lifting Lugs

    • Earthling Terminal

    • Name Plate with connection diagram

    • Primary Bushings

    • Secondary Bushings

    • Draining Plug
 

✓ Type Test ✓ Impulse Test
✓ Temperature Rise Test ✓ Short Circuit Test 

 

Routine tests have been applied to every transformer, which is produced in line as per NEA and NS standards. 

    • Measuring of voltage ratio and check of phase displacement

    • Measurement of winding resistance

    • Measurements of no load losses

    • Applied voltage withstand ability test

    • Measurements of Impedance and Load Loss

    • Measurement of insulation resistance (Megger test)

    • Leak testing with pressure for liquid immersed 
transformer

    • Transformer oil test

    • Insulation Resistance Test

    • Ratio Test

    • Short circuit Test

 

Domestic purpose & Small Industry applications. 

We offer effective emergency repairing services for correcting faults or failures faced by our end users that include power transformer repair, transformer repair services, etc. Also to meet the contingency, we make sure in providing prompt repair services and spares to replace the obsolete parts of the transformer. To meet the urgent requirements, we offer our clients with transformers to replace the faulty ones for a nominal rent. 

We offer transformer-repairing services, which include transformer oil filtration and high tension repairing. These services offered by us are unmatched and reliable. To ensure speedy and efficient services, we have a team of technicians who ensure that the fault is repaired immediately. 
 

Whilst Elex Transformer may be marginally little expensive than others but Elex are most cost effective in long term and over the whole of life. Cost effective transformer calculations should consider capital cost, energy costs, No Load Losses and Load Losses to calculate Total Ownership. 

When you buy low cost transformer for a while you may feel that you have saved money but in long run, Due to high Load loss and No Load loss you end up paying high Electricity bills. Elex Transformer might be expensive than Indian Transformer but due to its low loss design your company will save on electricity bills in long run. 

 

 

 

At KB Elex, our goal is not only to meet the needs of our customers today but also to provide them better life in the future. 

Quality is an indivisible part of our work ethics and products. We use stringent quality norms for the manufacturing of our products. The impeccable quality of our products has helped us on achieving a great height of success. 

Our stringent adherence to international standards of quality coupled with our constant penchant for innovations has seen us come out with incredible ideas. We take pride in our world-class infrastructure. We firmly believe in investing in quality machinery to deliver globally viable products. This is enabled by our quality assurance team, who maintains quality standards, cutting across every stage of production, right from the procurement of the material to the actual delivery and installation of Transformers. 

Best Distribustion Transformer Manufacturer in Nepal