Automatic Voltage Controller

Pec is an iso 9001:2015, nsic-crisil, dun bradstreet (862376458), iec, fgi, dic, eepc & exim registered company. pec’s automatic voltage conrollers/ rectifiers have robust design and gives trouble free service. we provide you the finest products designed and engineered by the people & professionals who have the experience and expertise in each sphere of activity right from testing, quality control, manufacturing & designing of these products for last 35 years. we have with us the state of art infrastructure with excellent and advanced capabilities to manufacture world-class automatic voltage conrollers with quality standards.

technology: voltage regulator is the essential and main functional part of avc equipment . our voltage regulators are liner type regulator with rolling contact carbon rollers. we use heavy duty carbon roller which do not need any replacement for at least 20-25 years.

commitment: we have a commitment to provide an five year guarantee for all the equipments 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% 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 equipments
• 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

linear, plus / minus type vertical rolling contact voltage regulator

» 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 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 controller is more than 98-99% in comparison to 93-97% of conventional make available in the market depending upon the input voltage range. thus, a 500 kva conventional type stabilizer or conventional servo voltage stabilizers will consume additional power itself minimum rs. 80,000 p.a. (even when running at 60% load and 20 hours a day) on account of its lower efficiency by 2%.

better life

the life of make servo voltage stabilizers is more than 10/15 years at full load in comparison to 2/3 years of conventional make.

duty cycle

conventional type stabilizers are suitable for 30-40% load on continuous duty cycle. our automatic voltage stabilizers are heavy duty & industrial type and are suitable for 100% load continuous duty cycle. for running load of 200 kva, generally 400 kva / 500 kva conventional type stabilizer is installed while make 200 / 250 kva is suitable.

guarantee

our automatic voltage stabilizers are guaranteed unconditionally for 5 years as compared to 1 year of conventional make.

payback period

owing to its high efficiency and associated benefits, the payback period for the cost of power’s servo voltage stabilizers is from 6-12 months depending upon the input voltage variation and number of working hours of the plant. the higher the input voltage the shorter will be the payback period.

servicing

we have all india servicing network to provide immediate service to our customers. the service engineers also visit monthly in their respective areas for routine check-ups. also, servo controlled voltage stabilizers are categorized under energy saving. the servo controlled voltage stabilizers should be such that its own consumption is minimum otherwise the basic concept of energy conservation will be lost. therefore while deciding for a stabilizer it becomes necessary to invest the capital over a period of time to ensure that its running cost is minimum and payback period is quickest. from the above facts, you will find that our automatic voltage stabilizers will cost much lesser in long run to conventional type stabilizers.

temperature rise

automatic voltage controllers and automatic servo voltage controllers are designed for max. 35-40 degree temperature rise at top of oil whereas allowed limit is 50′ c.

core

the core is constructed from low loss, cold rolled, grain oriented, annealed laminations of electrical sheet steel conforming to the latest international standards. special frame is built in-house for clamping the core to reduce the magnetic noise as well as making the whole structure rigid and robust.

windings

coils are wound with paper covered electrolytic grade copper strip or synthetic enameled copper conductors. cooling ducts are provided to keep the hot spot temperature as low as possible. coils are dried in electric ovens. rigid connection support and coil clamping is provided to ensure high short circuit strength.

insulation

pre-compressed board parmali board and japanese insulation paper of best quality is used.

oil

oil tested for resistivity, dielectric and acidic characteristic conforming to is 335. before topping up oil is filtered throughly.

tanks and paint

the tanks are made of m.s. steel plated / sheets with adequate bracing & stiffness. all the external surfaces are given a primary coat of epoxy and finishing coat of epoxy paint for better life.

meters & control systems

ae meters and quality products for controls are used.

avc’s application
o cement plant
o paper mills
o footwear & leather units
o flour mills
o tube mills
o distilleries & beverage
o engineering units
o rice shellers
o hospitals
o pharmaceutical units
o footwear & leather units
o rubber industries
o nursing home
o cold storage
o tea estates
o clubs
o rolling mills
o food processing units
o high rise buildings
o textiles mills
o oil and vanaspati plant
o mall & multiplex

benefits

up to 80% reduction in failure rate of electrical equipment
energy saving up to 10% (up to 30% on lighting load)
reduction in mdi
improvement in power factor
uniform quality of end products
improver productivity of the plant