Faridabad, Haryana, India
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We offer Dry type transformer are non-explosive fire resistant, air insulated, and are cooled by natural circulation of air through ducts provide in the windings. High temperature and high dielectric insulating materials like glass fiber reinforced, nomex insulating tapes are used in such a way that the entire assembly is capable of withstanding high electrical and mechanical stresses with good dissipation of heat causing low temperature rise within the prescribed limit of insulation class. Standard The Dry Type transformer are manufactured to comply with National International Standards BIS, IS 11171, IEC 76. Description The winding are made up of electrolytic Grade, Soft and bright annealed copper conductors covered with nomex insulating tapes. The wound coils are preheating and impregnated with silicon varnish under vacuum pressure and undergo a curing cycle. The low voltage coils are wound over glass fiber reinforced cylinder having high mechanical strength. The high voltage coils are supported over yoke on glazed porcelain or resin insulators. The core is made of CRGO silicon steel laminations duly annealed after shearing and assembled in mitred construction for low âNO LOADâ LOSS. The yoke frame has adjustable pressure plates to clamp & secure the coils adequately. Lifting arrangements is provide on the top yoke frame so that the core and coil assembly is lifted. OFF-CIRCUIT TAMPING if required are provided on HV winding and terminated on fiber glass terminal board for changing the transformer ratio in âOFF CKTâ position. Applications Fire safety and environmental aspects are of increasing importance especially in respect of energy supply. The substitution of oil-filled transformers by dry type transformers is one of the most important step towards it. Dry Type transformer is used when it has to be located near load center and in a fire hazardous place. As there is no oil used in the transformer and special type of fire resistant insulation are used for the windings the fire risk is considerably reduced. TOP Standard Specifications Capacity Up to 2500 KVA No. Of Phases 3 Phase Frequency 50 Hz. Voltage Range 11 KV Tapping On Load Tap Changer to provide +5% to -15% Taps in steps of 1.25% on the H.T. Side. Else, Off Circuit Tap Links for ± 5% Taps on H.T. Side in steps of 2.5% each. Insulation Class 'F' (for Dry Type Trf.) Vector Group Dyn 11 Duty Cycle Continuous Winding Copper Wound Terminals As per required. Dry type Transformers has the following advantage More efficient Non toxic Highly safe Non flammable Space saving by placing near the load end Low Noise Low Maintenance Can be supplied with off circuit links.
We are the most favored destination for availing Ultra Isolation Transformer. Switching of Electrical Equipments in industrial and commercial Generates spikes up to 10000 Volts and high frequency Noises thus disturbing the sine wave output. The spikes can cause the failure of Thyristor, Microprocessor or other sensitive devices.
The High frequency noise can interface with digital - Electronic Equipments Causing data corruption erratic behaviors, loss of memories etc.
Isolation Transformer eliminate such noises and attenuates the spikes to minimal values, providing complete protection against such electrical disturbances. It consists of double wound Transformers with Extremely low coupling capacitance to isolate the voltage spikes and reduce noise from mains with extremely high insulation resistance. The turn ratio of Isolation transformer is 1:1. It is generally installed with the separate machines.
We offer highly efficient Distribution and Power Transformer designed to grant the reliability, durability and efficiency required in utility, industrials commercial application. Our Distribution and Power Transformers are manufactured in accordance with the most demanding industry & international standards. The Distribution and Power Transformer can be used for indoor or outdoor application and can be provided with off-load & on-load tap changer (OLTC) Upto 15MVA capacity with 11/22/33KV class.
Capacities
Standards Followed
All the like IS, IEC, ANSI, J15 , BS, DIN etc are adopted in our standard manufacturing.
Temperature Rise
Reliable's equipment is designed for a maximum temperature rise of 50ºC of oil above the ambient temperature of 50ºC.
Terminal Arrangement
Both the HV & LV can be provided with bare bushings and can be provided with cable box with extended bus bar to handle the multiple cables. Disconnecting chambers can be provided with HV & LV cable Boxes.
We present Dry Type Transformers, which are non-explosive fire resistant, air insulated and cooled by natural circulation of air through ducts provided in the winding. High temperature and high dielectric insulating material like glass fiber reinforced, nomex insulation tapes are used in such a way that the entire assembly is capable of withstanding high electrical and mechanical stresses with good dissipation of heat causing low temperature rise within the prescribed limit of insulation class.
Standard
The Dry Type transformer are manufactured to comply with National International Standards BIS, IS 11171, IEC 76
Description
The winding are made up of electrolytic Grade, Soft and bright annealed copper conductors covered with nomex insulating tapes. The wound coils are preheating and impregnated with silicon varnish under vacuum pressure and undergo a curing cycle. The low voltage coils are wound over glass fiber reinforced cylinder having high mechanical strength. The high voltage coils are supported over yoke on glazed porcelain or resin insulators. The core is made of CRGO silicon steel laminations duly annealed after shearing and assembled in mitred construction for low “No Load” Loss.
The yoke frame has adjustable pressure plates to clamp & secure the coils adequately. Lifting arrangements is provide on the top yoke frame so that the core and coil assembly is lifted. Off-circuit Tamping if required are provided on HV winding and terminated on fiber glass terminal board for changing the transformer ratio in “OFF CKT” position.
Applications
Fire safety and environmental aspects are of increasing importance especially in respect of energy supply. The substitution of oil-filled transformers by dry type transformers is one of the most important step towards it. Dry Type transformer is used when it has to be located near load center and in a fire hazardous place. As there is no oil used in the transformer and special type of fire resistant insulation are used for the windings the fire risk is considerably reduced.
Advantage
Technical Specifications
| Capacity | Up to 2500 KVA |
|---|---|
| No. of Phases | 3 Phase |
| Frequency | 50 Hz. |
| Voltage Range | 11 KV |
| Tapping | On Load Tap Changer to provide +5% to -15% Taps in steps of 1.25% on the H.T. Side. Else, Off Circuit Tap Links for ± 5% Taps on H.T. Side in steps of 2.5% each. |
| Insulation | Class 'F' (for Dry Type Trf.) |
| Vector Group | Dyn 11 |
| Duty Cycle | Continuous |
| Winding | Copper Wound |
| Terminals | As per required. |
If you are looking for Furnace Transformers, you can avail them from us. The Furnace Transformers offered by us are widely used in refractory to regulate the supply of power in the furnace. The Furnace Transformers that we offer are safe to use as they are properly insulated.
HT Transformer counters the problems related to wide fluctuation of incoming grid supply. Installing standard distribution transformer can cause low/high voltage problem on the L.T. side, which may affect rated voltage and damage the motor. As a Manufacture, Exporter & Supplier of HT Transformer, we offer a device with in-built automatic voltage stabilizer. The HT Transformer combines standard distribution and HT automatic working models of the transformers, and it robust as well as low-maintenance.
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Advantages
