Isolation Transformer #1182403

Ultra Isolation Transformer is manufactured by us with the aid of latest technologies to protect the Isolating sensitive equipment. We also offer power isolation transformers and super isolation transformer in the market. The Ultra Isolation Transformers are specially designed for sensitive critical equipment like computers & peripherals, medical instrumentation, digital communication telemetry systems, CNC Machines etc. and stopping such disturbances generated by the noisy equipment load from being injected into the power line. Multiple shielding techniques employed reduce the inter winding capacitance to below 0.005 Pico farad and increase D.C Isolation to over 1000 Megohms. Technically, transformers that have no direct current path between their primary & secondary windings provide Isolation. Other commonly used, transformers even if they have separate primary & secondary winding are intended to convert the input voltage to a more useful level & do very little to attenuate the passage of noise or transients from primary to secondary. Even through both are separately wound transformers, they are substantially different w.r.t construction, specification & performance characteristics. In shielded transformer, Four Low impedance path exists for noises to pass to secondary & vise versa. : The High Value of Coupling Capacitance. The Maximum Linkage of Magnetic Field. The Leakage Current. Static transformer of Electric Noises.   Provides Protection Against : Line Voltage transients Spikes D.C Leakage

Electrical transformers, or simply transformers are the electrical devices meant for transforming the electric energy. The basic function of a transformer is to alter the voltage, usually from high to low. In other words, a transformer solves the purpose of transiting the power from the power plants to houses, offices, markets, malls, etc., in an appropriate state. Nowadays, electrical transformers are available in several different types. Also, the size of electrical transformers vary according to the area of their application. For instance, the transformers required for power stations are multi-ton units, which are large and bulky; electrical transformers used on electric poles are intermediate units, which are medium sized; electrical appliances in homes, offices, etc., require compact transformers. electrical transformers manufactured by power engineers & consultants are precisely and efficiently engineered to render optimum value for your money. Our transformers ensure safe and economical transfer of current from the main power supply to the relevant equipment. Our range of electrical transformers is mentioned below: special purpose transformersthe special purpose transformers found their application in areas where the voltage requirement of the machines available differ significantly from the standard voltage. Our special purpose transformers are at the forefront in the industry. We strictly adhere to the international quality standards while manufacturing these transformers. We also entertain custom requirements up to 5000 kva. Power distribution transformers the main function of a power distribution transformer is to transform the electrical supply from the main source into a predefined voltage, which should be appropriate for the destination equipment. We use high quality materials and advanced production techniques for manufacturing these transformers. We are also capable of custom designing these transformers according to the client's specifications. Our power distribution transformers are primarily demanded by large manufacturing units, electricity boards, and windmills. ultra isolation transformers ultra isolation transformers are considered ideal for eliminating line disturbances and preventing faulty and erratic operation of certain sensitive equipment like computer, computerized machines, medical equipment, cnc machines, digital communication telemetry systems, and so. We are quite specialized in manufacturing this particular variety of transformer. Our ultra isolation transformers are highly effective in eradicating the disturbances generated in consequence of the noisy equipment load which get injected into the power line. These transformers are also custom engineered by us to suit the specific needs of our clients.

Electrical transformers, or simply transformers are the electrical devices meant for transforming the electric energy. The basic function of a transformer is to alter the voltage, usually from high to low. In other words, a transformer solves the purpose of transiting the power from the power plants to houses, offices, markets, malls, etc., in an appropriate state. Nowadays, electrical transformers are available in several different types. Also, the size of electrical transformers vary according to the area of their application. For instance, the transformers required for power stations are multi-ton units, which are large and bulky; electrical transformers used on electric poles are intermediate units, which are medium sized; electrical appliances in homes, offices, etc., require compact transformers. Electrical transformers manufactured by Power Engineers & Consultants are precisely and efficiently engineered to render optimum value for your money. Our transformers ensure safe and economical transfer of current from the main power supply to the relevant equipment. Our range of electrical transformers is mentioned below: Special Purpose TransformersThe special purpose transformers found their application in areas where the voltage requirement of the machines available differ significantly from the standard voltage. Our special purpose transformers are at the forefront in the industry. We strictly adhere to the international quality standards while manufacturing these transformers. We also entertain custom requirements up to 5000 kva. Power Distribution Transformers The main function of a power distribution transformer is to transform the electrical supply from the main source into a predefined voltage, which should be appropriate for the destination equipment. We use high quality materials and advanced production techniques for manufacturing these transformers. We are also capable of custom designing these transformers according to the client's specifications. Our power distribution transformers are primarily demanded by large manufacturing units, electricity boards, and windmills. Ultra Isolation Transformers Ultra isolation transformers are considered ideal for eliminating line disturbances and preventing faulty and erratic operation of certain sensitive equipment like computer, computerized machines, medical equipment, CNC machines, digital communication telemetry systems, and so. We are quite specialized in manufacturing this particular variety of transformer. Our ultra isolation transformers are highly effective in eradicating the disturbances generated in consequence of the noisy equipment load which get injected into the power line. These transformers are also custom engineered by us to suit the specific needs of our clients.

SpecificationsPower-Cast transformers are available with specification as follows :Rated VoltageHV coil : Up to 36KVLV coil : 0.48-4.16 KV*Power-Cast transformers with multiple high voltage connections can also be supplied.Tap RangeStandard : 2.5%, 5%* Other ratings are available by arrangement.Power CapacitySingle phase : 20 - 2, 000 KVAThree phase : 50 - 10, 000 KVAFrequency : 50Hz, 60HzTypical % impedance voltage : 4-8%.ConnectionsHV coil : DeltaLV coil : Wye with neutral point* Other connections are available to meet requirements.Temperature RatingsHV coil : Class FLV coil : Class FMax. ambient temperature : 450 CTemperature rise limitation : 1800 C

We manufacture, export and supply epoxy cast resin transformers in various specifications. The epoxy cast resin transformers are designed to be fire resistant, maintenance free and environmentally safe. Besides, the epoxy cast resin transformers generate low noise and are very cost-efficient. Made using advanced technology, the epoxy cast resin transformers are resistant to failures, thus serve as dependable power supply systems. characteristics fire resistant : cast resin transformers have an inherently safe characteristic of self fire-extinguishing and fire resistance. So there would be no fear of spread of fire even if a fire took place in nearby equipment. The transformers can be used indoors without fear of fire, and it is not necessary to provide additional measures for safety. ignited for 2 minutes on the surface of cast coil with acetylene torch.as the torch was removed from the surface of burning resin.the flame extinguished by itself after 15 seconds. maintenance free : maintenance is almost completely eliminated. No checking of liquid level and no yearly dielectric test for moisture absorption is required. Due to the smooth coil surfaces, heavy dirt and dust build up is eliminated even under the worst circumstances. The recommended routine maintenance is an occasional visual or infra-red thermal inspection. environmentally safe : power-cast transformers will not emit oil or toxic gases into the atmosphere. Therefore, they do not pollute the environment and are recommended strongly as a replacement for askarel filled (pcb) transformers. Pcb is poisonous, chemically aggressive and can discharge dangerous gases at elevated temperatures. low noise : the encapsulation of the core in a special resin and the design of the clamping mechanism have provided an appreciable noise reduction. Noise is also reduced due to the sound suppressing effect of the elaborate core cutting and the coil support elastic structure. cost saving : if the advantage of power - cast transformers is taken into consideration at the planning stage, the overall costs of a power supply system can often be considerably reduced. They are sufficiently compact for convenient installation in a building where space is generally limited and have much smaller power loss than oil immersed and dry-type transformers. Total costs are lower even though cast resin transformers may be more expensive than other transformers. Cost savings add low maintenance and longer operating life in all conditions. fewer failures : standard insurance company studies have shown failure rates in cast coil transformers to be less than 5% that of standard dry type transformers in some applications.

Ultra Isolation Transformer is manufactured by us with the aid of latest technologies to protect the Isolating sensitive equipment. We also offer power isolation transformers and super isolation transformer in the market. The Ultra Isolation Transformers are specially designed for sensitive critical equipment like computers & peripherals, medical instrumentation, digital communication telemetry systems, CNC Machines etc. and stopping such disturbances generated by the noisy equipment load from being injected into the power line. Multiple shielding techniques employed reduce the inter winding capacitance to below 0.005 Pico farad and increase D.C Isolation to over 1000 Megohms. Technically, transformers that have no direct current path between their primary & secondary windings provide Isolation. Other commonly used, transformers even if they have separate primary & secondary winding are intended to convert the input voltage to a more useful level & do very little to attenuate the passage of noise or transients from primary to secondary. Even through both are separately wound transformers, they are substantially different w.r.t construction, specification & performance characteristics. In shielded transformer, Four Low impedance path exists for noises to pass to secondary & vise versa. : The High Value of Coupling Capacitance. The Maximum Linkage of Magnetic Field. The Leakage Current. Static transformer of Electric Noises. Provides Protection Against : Line Voltage transients Spikes D.C Leakage

We are named among the renowned Manufacturers, Exporters and Suppliers of Dry Type Transformer. We offer advanced range of Dry Type VPI /VPE / CAST MOLDED Transformers with off circuit tap links (up to 5000 KVA in 11 KV Class). We use electrolytic grade 99.9% pure copper in the manufacturing process of our Dry Type Transformer. It is basically designed for trouble-free performance, confirming to IEC – 76 & 726. Use of Class ‘F’ / ‘H’ insulation in our Dry Type Transformer increases the heat bearing capacity.

Why Dry Type Transformer From Power Engineers Company (PEC)?PEC offers advanced range of Dry Type VPI /VPE / CAST MOLDED Transformers with Off Circuit Tap Links (up to 5000 KVA in 3.3 KV Class.), using CRGO M3 to M5 MOH Lamination and Electrolytic Grade 99.9% pure copper. These transformers are designed for trouble-free performance, confirming to IEC – 76 & 726 with low power loss and low noise. Use of modern manufacturing techniques and optimum utilization of active materials ensures cost effectiveness, reliability and a long trouble-free performance.
Dry Type Transformer are fitted in enclosure for Indoor installations and are totally maintenance free and safe from fire as the material used is metal, ceramic, NOMEX and resin. It is environment friendly as there is no oil, hence handling becomes easier and there are no chance of spillages and leakage and there is minimal nontoxic smoke in case of fire. Use of Class ‘F’ / ‘H’ insulation increases the heat bearing capacity and enables the use of the transformer in humid and chemically polluted atmosphere. Fire safety and environmental aspects are of increasing importance. The substitution of oil-filled transformers by dry type transformers is one of the most important steps towards it. VPI transformer is used when it has to be located near load centre and in a fire hazardous place. Special type of fire resistant insulation is used for the windings, thus reducing the fire risk considerably.

Dry-Type Transformers Can have Their Windings Insulated in a Number of Different Ways :There are several different construction methods used in the manufacture of dry-type transformers, resulting in various designs that make installation in many different environments possible. The key difference in the design of these units is in the insulation of the windings. Dry-type transformers can have their windings insulated in a number of different ways.

• Open wound

The standard dry-type transformer follows a “dip-and-bake construction” method. This is accomplished by preheating the conductor coils and then, when heated, dipping them in varnish at an elevated temperature. The coils are then baked to cure the varnish.

• Vacuum Pressure Impregnation (VPI)

This technique applies the varnish coating in interchanging cycles of pressure and vacuum. The VPI process uses polyester resin. The coils are then cured in an oven. The VPI process is better than the standard dry-type transformer because it includes pressure in addition to vacuum. This process allows better penetration of the varnish in the transformer coil. These units offer an increased resistance to corona.

• Vacuum pressure encapsulated (VPE)

VPE transformer coils are vacuum pressure encapsulated in high temperature Silicone varnish to provide the ultimate protection against moisture. The silicone VPE process utilizes a special four cycle procedure that employs the fundamental principles of vacuum pressure encapsulation and curing. Because of the inherent bonding strength of silicone varnish, the finished coating remains smooth and gives superior environmental protection. Coils receive a minimum of 4 cycles of silicone varnish, and the core and clamping structure are coated with a corrosion resistant sealant that guards against moisture and industrial contaminants. Silicone varnish provides excellent dielectric strength that remains pliable even after thermal aging. The silicone varnish is a true 220 °C insulating material tested to above 250 °C. The silicone VPE process utilizes conventional dry type designs and offers optional conductors, BIL levels, and temperature rises with a 220 °C Class insulation system.

• Cast coil (mould epoxy sealing)

These units incorporate coils encapsulated in epoxy by a moulding process. The transformer coils are solidly cast in resin under a vacuum in a mould. The manufacturing process locks the windings in a strong epoxy resin with high dielectric strength, protecting the transformer from severe operating environments (As mentioned in epoxy cast resin transformer)
Each of the winding insulations noted above is specifically suited for particular environments. Therefore, it's important to understand where best to use each type. For example, it costs approximately 25% more to specify a cast coil transformer over a VPE or VPI type unit. Therefore, your final selection can have a significant impact on the overall cost of a project.
When improved resistance to corona (i.e., electrical discharges caused by the field intensity exceeding the dielectric strength of the insulation) and increased mechanical strength of the windings are required, you should use a VPI-type transformer.
Use a cast coil transformer when additional coil strength and protection is needed, such as in unforgiving environments like chemical process plants, construction material factories, and for outdoor installations. These types of harsh environments include substances that can devastate the windings of other dry-type transformers, including salt, dust, caustic gases, moisture, and metal particles. Additionally, cast coil transformers have improved abilities to withstand heavy electrical surges, such as recurring but short-duration overloads experienced by transformers serving industrial processes. Cast coil transformers typically have the same increased levels of BIL as oil-filled transformers, while still providing ample protection of the transformer coils. Cast coil transformers are also being used in some harsh locations that were previously thought best served by liquid-filled transformers.

Advantages

 

• High level of safety.
• No flammable liquids.
• No pollution from leaks solution.
• No toxic off-gasses.
• Can be placed close to the load.
• More efficient.
• Improved reliability.
• Low Noise and low maintenance.
• Easy to repair (open coils).

We manufacture, export and supply Epoxy Cast Resin Transformers in various specifications. The Epoxy Cast Resin Transformers are designed to be Fire resistant, Maintenance Free and Environmentally Safe. Besides, the Epoxy Cast Resin Transformers generate low noise and are very cost-efficient. Made using advanced technology, the Epoxy Cast Resin Transformers are resistant to failures, thus serve as dependable power supply systems. Characteristics Fire resistant : Cast Resin transformers have an inherently safe characteristic of self fire-extinguishing and fire resistance. So there would be no fear of spread of fire even if a fire took place in nearby equipment. The transformers can be used indoors without fear of fire, and it is not necessary to provide additional measures for safety. Ignited for 2 minutes on the surface of cast coil with acetylene torch. As the torch was removed from the surface of burning resin. The flame extinguished by itself after 15 seconds. Maintenance Free : Maintenance is almost completely eliminated. No checking of liquid level and no yearly dielectric test for moisture absorption is required. Due to the smooth coil surfaces, heavy dirt and dust build up is eliminated even under the worst circumstances. The recommended routine maintenance is an occasional visual or Infra-Red thermal inspection. Environmentally Safe : Power-Cast transformers will not emit oil or toxic gases into the atmosphere. Therefore, they do not pollute the environment and are recommended strongly as a replacement for askarel filled (PCB) transformers. PCB is poisonous, chemically aggressive and can discharge dangerous gases at elevated temperatures. Low Noise : The encapsulation of the core in a special resin and the design of the clamping mechanism have provided an appreciable noise reduction. Noise is also reduced due to the sound suppressing effect of the elaborate core cutting and the coil support elastic structure. Cost Saving : If the advantage of Power - Cast transformers is taken into consideration at the planning stage, the overall costs of a power supply system can often be considerably reduced. They are sufficiently compact for convenient installation in a building where space is generally limited and have much smaller power loss than oil immersed and dry-type transformers. Total costs are lower even though cast resin transformers may be more expensive than other transformers. Cost savings add low maintenance and longer operating life in all conditions. Fewer Failures : Standard Insurance Company studies have shown failure rates in cast coil transformers to be less than 5% that of standard dry type transformers in some applications.

The special purpose transformer offered by us includes ultra isolation trf, step up / step down or any other desired voltage sometimes machines used are of different voltage then the standard voltage available at site to operate the machine, special purpose trf is required. Systems of the special purpose transformer can be designed and manufactured by us according to customers requirement up to 5000 kva.

characteristics of power-cast resin transformers: fire resistant: cast resin transformers have an inherently safe characteristic of self fire-extinguishing and fire resistance. so there would be no fear of spread of fire even if a fire took place in nearby equipment. the transformers can be used indoors without fear of fire, and it is not necessary to provide additional measures for safety. a) ignited for 2 minutes on the surface of cast coil with acetylene torch. b) as the torch was removed from the surface of burning resin. c) the flame extinguished by itself after 15 seconds. maintenance free : maintenance is almost completely eliminated. no checking of liquid level and no yearly dielectric test for moisture absorption is required. due to the smooth coil surfaces, heavy dirt and dust build up is eliminated even under the worst circumstances. the recommended routine maintenance is an occasional visual or infra-red thermal inspection. environmentally safe: power-cast transformers will not emit oil or toxic gases into the atmosphere. therefore, they do not pollute the environment and are recommended strongly as a replacement for askarel filled (pcb) transformers. pcb is poisonous, chemically aggressive and can discharge dangerous gases at elevated temperatures. low noise: the encapsulation of the core in a special resin and the design of the clamping mechanism have provided an appreciable noise reduction. noise is also reduced due to the sound suppressing effect of the elaborate core cutting and the coil support elastic structure. cost saving : if the advantage of power - cast transformers is taken into consideration at the planning stage, the overall costs of a power supply system can often be considerably reduced. they are sufficiently compact for convenient installation in a building where space is generally limited and have much smaller power loss than oil immersed and dry-type transformers. total costs are lower even though cast resin transformers may be more expensive than other transformers. cost savings add low maintenance and longer operating life in all conditions. fewer failures: standard insurance company studies have shown failure rates in cast coil transformers to be less than 5% that of standard dry type transformers in some applications. specification specification data power-cast transformers are available with specification as follows: rated voltage hv coil: up to 36kv lv coil: 0.48-4.16 kv *power-cast transformers with multiple high voltage connections can also be supplied. tap range

Special purpose epoxy cast resin transformermoisture proof: complete encapsulation of primary and secondary winding in epoxy resin prevents penetration of moisture into windings. The cast resin offers very good protection against adverse ambient conditions. These transformers can work without disruption of service at 100% humidity. no leakage or pilferage of oil: as cast resin transformers are solidly cast, problem associated with oil filled transformers like oil leakage and pilferage of oil is completely avoided.Hardly inflammable and self extinguishing: due to high quality insulation material the transformer is practically non-inflammable by an electrical arc, special fire protection measures are not required.Impulse strength : contrary to the conventional dry type transformers the cast coil transformers are better in respect of impulse voltage withstand strength.Resistant against temperature fluctuation: the insulation material used is glass fibre reinforced with epoxy resin of class 'f' which can withstand wide temperature variation.

Cast Resin Transformers cast Resin Transformers Manufactured By the Company have Gained Worldwide Popularity. the Configuration of Cast Resin Transformers is Available in Single and Three Phases. Power Ratings for Cast Resin Transformers are Up to 10 Mva. Cast Resin Transformers Require Voltage of Up to 36 Kv. Enclosure Protection is from Ip00 (core and Coils Only) Up to Ip66 and the Cast Resin Transformers is Protected Against Dust and Water. Cast Resin Transformers from Trasfor Provide Cooling from An (natural Convection) Up to Afwf Which is a Combination of Forced Air and Forced Water. Trasfor Cast Resin Transformers Conform to all International Standards. the Typical Application of These Cast Resin Transformers are in Distribution, Drives, Excitation and Converter. They are Ideally Suited for Harsh Environments. PEC is an iso 9001:2015, NSIC-CRISIL, Dun Bradstreet (862376458), IEC, FGI, DIC, EEPC & EXIM registered company. PECs Automatic Voltage Controllers/ Rectifiers have a robust design and give trouble-free service. we provide you the finest products designed and engineered by people & professionals who have experience and expertise in each sphere of activity right from testing, quality control, manufacturing & designing of these products for the last 35 years. we have with us the state-of-the-art infrastructure with excellent and advanced capabilities to manufacture world-class automatic voltage controller with quality standards. TECHNOLOGY: Voltage Regulator is the essential and main functional part of AVC equipment. our voltage regulators are liner-type regulators with rolling contact carbon rollers. we use heavy-duty carbon rollers which do not need any replacement for at least 20-25 years. COMMITMENT: we have a commitment to provide a FIVE-YEAR GUARANTEE for all the equipment supplied by us. After-sales service is the backbone of our organisation. We have developed and installed industrial Automatic Voltage Controller throughout India which are suitable for 100% continuous duty cycle supplied up to 5000 kva which have more than 99.5% efficiency. ADVANTAGES OF INSTALLING AVC : Customer will certainly have the following advantages in case they are getting higher input voltage i.e. more than 230 volts single phase/400 volts three phase. Reduction in breakdown of electrical equipment Energy saving 5-10 % on motor load and 15-25% on lighting load. Reduction in mdi by 10-15%. Improvement in power factor. Depreciation allowance @80% as per income tax act. Uniform quality of end products. Automatic Voltage Controller primarily consists of the following 1.Linear, Plus / Minus Type Vertical Rolling Contact Voltage Regulator In our voltage regulator, we are using heavy section of electrolytic grade rectangular copper strip instead of copper wire to minimize the losses & increase the efficiency of equipment. We are also using self lubricating carbon roller assemblies instead of ordinary carbon brushes which offer more reliability and trouble free performance of the equipment. 2.Double wound buck / boost type series transformer In our buck / boost transformer we are using crgo lamination to minimize iron losses. Coils of buck / boost transformer are wound with heavy section of multi strips electrolytic copper to minimize copper losses for getting better efficiency of the equipment. 3. Electronic Control Circuit and Meter Panel Automatic Voltage Controller consists of very simple electronic control voltage circuit for monitoring and controlling voltage, repair & maintenance of which is very easy. The regulator and buck / boost transformer are oil cooled, housed in same or separate sheet steel tanks. Radiators are provided for effective cooling. The coils of the voltage regulator & buck/boost transformers are vacuum-impregnated and oven dried as per IS. SPECIAL FEATURES Special Features of PEC Make Automatic Voltage Controller: EFFICIENCY The efficiency of PEC make Automatic Voltage

We have special purpose transformers. The special purpose transformers found their application in areas where the voltage requirement of the machines available differ significantly from the standard voltage. Our special purpose transformers are at the forefront in the industry. We strictly adhere to the international quality standards while manufacturing these transformers. We also entertain custom requirements up to 5000 kva.

Characteristics of Power-cast Resin Transformers: fire Resistant: Cast Resin Transformers have An Inherently Safe Characteristic of Self Fire-extinguishing and Fire Resistance. So There Would Be No Fear of Spread of Fire Even if a Fire Took Place in Nearby Equipment. the Transformers Can Be Used Indoors Without Fear of Fire, and It is Not Necessary to Provide Additional Measures for Safety. a) Ignited for 2 Minutes On the Surface of Cast Coil with Acetylene Torch. b) as the Torch Was Removed from the Surface of Burning Resin. c) the Flame Extinguished By Itself After 15 Seconds. maintenance Free : Maintenance is Almost Completely Eliminated. No Checking of Liquid Level and No Yearly Dielectric Test for Moisture Absorption is Required. Due to the Smooth Coil Surfaces, Heavy Dirt and Dust Build Up is Eliminated Even Under the Worst Circumstances. the Recommended Routine Maintenance is An Occasional Visual or Infra-red Thermal Inspection. environmentally Safe: Power-cast Transformers Will Not Emit Oil or Toxic Gases Into the Atmosphere. Therefore, They Do Not Pollute the Environment and are Recommended Strongly as a Replacement for Askarel Filled (pcb) Transformers. Pcb is Poisonous, Chemically Aggressive and Can Discharge Dangerous Gases At Elevated Temperatures. low Noise: the Encapsulation of the Core in a Special Resin and the Design of the Clamping Mechanism have Provided An Appreciable Noise Reduction. Noise is also Reduced Due to the Sound Suppressing Effect of the Elaborate Core Cutting and the Coil Support Elastic Structure. cost Saving : if the Advantage of Power - Cast Transformers is Taken Into Consideration At the Planning Stage, the Overall Costs of a Power Supply System Can Often Be Considerably Reduced. They are Sufficiently Compact for Convenient Installation in a Building Where Space is Generally Limited and have Much Smaller Power Loss Than Oil Immersed and Dry-type Transformers. Total Costs are Lower Even Though Cast Resin Transformers May Be More Expensive Than other Transformers. Cost Savings Add Low Maintenance and Longer Operating Life in all Conditions. fewer Failures: Standard Insurance Company Studies have Shown Failure Rates in Cast Coil Transformers to Be Less Than 5% that of Standard Dry Type Transformers in Some Applications. specification specification Data power-cast Transformers are Available with Specification as Follows: rated Voltage Hv Coil: Up to 36kv Lv Coil: 0.48-4.16 Kv.