POWER ENGINEERS COMPANY Power Engineers Company is a leading Manufacturer, Exporter & Supplier of a diverse range of electrical equipment. The company is a group of qualified engineers. THE PEC has been in operation in the field of Automatic Voltage Controllers, Dry Type Transformer, Voltage Transformers, Electroplating Rectifiers, Static Transformers, Distribution Transformers and other electrical machines for years. The systems are designed and supervised by a team of qualified engineers having more than 35 years of experience to provide best quality equipment leading to total customer’s satisfaction. PEC is an ISO 9001:2015, NSIC-CRISIL, DUN BRADSTREET, EEPC & EXIM registered company. Manufacture all type of Transformers for industrial applications. AUTOMATIC VOLTAGE CONTROLLER (Automatic Voltage Regulator, Servo Voltage Stabilizer) UP TO 7000 KVA POWER DISTRIBUTION TRANSFORMER UP TO 10 MVA. D.C. SUPPLY, RECTIFIER TRANSFORMER FOR ELECTROPLATING, ELECTRO CHEMICAL, ELECTROLYSIS, ANODIZING UP TO 25,000 AMPS ULTRA ISOLATION TRANSFORMER UP TO 7000 KVA CAST RESIN TRANSFORMER (DRY TRANSFORMER) UP TO 7000 KVA VARIABLE VOLTAGE TRANSFORMER / REGULATOR UP TO 7000 KVA

The DC Rectifiers are widely used in Electroplating, Anodizing, Hydrogenation, and all other electro chemical processes. These are

tailor-made, covering a wide range from 500 TO 25000 AMPS at different output DC voltage as per requirement.

Salient Features :

• Designed for 100% Continuous Duty Cycle
• Compact Design for Space Saving
• Lesser Power Consumption
• Negligible Maintenance
• Tested at Each & Every Stage of Manufacturing
• Liberal Design & Rigorous Testing of the Equipment Enables Trouble Free Service for Long Life.
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Components :

• OTI
• Oil Pocket
• Oil Level
• Radiators
• Oil Circulation Pump
• Bus Bars
• Siica Gel Breather

• Butterfly Valves
• Earthing Terminals
• Oil Drain Valve
• UNI Directional Wheels
• Window for Diodes
• Oil Tank Indicator
• Lifting Lugs

Brief Specifications :

• Input Voltage : 380 - 440 Volts, 3- Phase 50 Hz. AC supply or any other voltage
• Output Voltage : Fixed Rated maximum DC voltage or variable from zero to maximum rated voltage
• Output Current : Rated maximum DC current
• Temperature Rise : Less than 45� C above ambient at the top of the oil
• Efficiency : Depends on voltage current rating of rectifier
• Ripple Content : Less than 5%

Insulation : 'A' class for oil cooled

Power Rectifiers are designed for 3 phase 50 Hz. AC input supply & are available for operations at any voltage between 380 and 440 volts, in India but can be designed for 60 Hz AC and any other voltage available. It is recommended that the input to the rectifier should be connected through a proper protective device, to provide positive protection to personal and the system, in the event of maintenance or in case a fault occurs. DC Output Control : The function of the variable output controls is to control the voltage or current or its operating range by varying input voltage to the main transformer primary. The DC output voltage variation is achieved steplessly 0-100% by means of an On Load roller type power make voltage regulator. Advantages of Roller Type Regulator :

• No. waveform distortion at any load, Electrical wave from is like a moving wheel. Fo 50% Rated Voltage the Dia of wheel is reduced accordingly i.e magnitude for a wave is decreased
• Higher power factor of more than 98 is achieved
• The system is simple and can be repaired and maintenance even by simple mechanic
• The cost of spares is very negligible
• Copper section for particular current is 3 times than conventional make
• Carbon roller rolls on coil and has trouble free life of more than 20 years
• Over all losses are less

Advantages of Conventional Make :

• Wave form distortion in thyrsorised type, It is like cutting the wheel by 50% and then moving the wheel. i.e wave from is cut as shown at full magnitude
• The power factor is lower between 0.5 to 0.75
• The system is specialized and need specially trained Electronic Engineer to repair and maintain
• The cost of replacement is very high
• Copper section for particular current in conventional make is 1/3
• Carbon brushes slide on coil, have less life due to sliding on coil & breaks regularly
• Over all losses are less