We are offering DC variable supply: 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 Jindal's make voltage regulator.

Sailent Features Of DC Variable Supply:

• JINDAL's rectifier equipments are wound with electrolytic Prime grade copper strip to minimise power losses, in comparison to Aluminium conductor used by many other manufacturers. Our equipments are designed liberally as per capacity and are Ideally suitable for marginal over loading conditions.
• We use verticle Rolling contact type voltage regulator wound with heavy section of copper strips suitable for 100% continuos duty cycle for industrial applications, in comparison to conventional wire wound Regulators used by other manufacturers. The carbon rollers move on both sides of the winding.
• DIODES : Silicon diodes are tested in house, similar PIV batch and same forward drop diodes are used in the equipment for equal load sharing and reducing the power losses of diodes.
• LAMINATION CORE : We use imported CRGO Lamination core which have minimum power losses and results in better efficiency of equipment and saving in energy bill.
• PAINTS : We are painting the equipment with Epoxy paint which is resistant to acidic environment of plating process and enhance the life of the equipment by preventing it from corrosion.
• METER :We use reputed make AE/RISHAB make DC meters only which are very accurate and durable.

 Constant Voltage Controller (CVC) (OPTIONAL):

We offer CVC Electronic attachment with rectifier equipments, which will maintain constant Output Voltage or current as per setting automatically-irrespective of input voltage variation.

Servicing : JINDAL's have maintained enviable reputation in market in after sales service. This fact can be varified from any of our customers.

JINDAL''''S is reputed for its fine range of tried & trusted products, designed & engineered by people who have been in Rectifiers'''' field for over 35 years. We manufacture wide range of Rectifiers suitable for Electroplating, Anodizing, Etching, Stripping, Hydrogenation, Metal Refining/Recovery & other electrochemical processes. We use Linear Rolling Contact Type Regulators in our Rectifiers. The entire manufacturing process under one roof ensures 100% quality control at each stage of production, and it is with this confidence in our quality & design that JINDAL''''S became the 1st company in the industry to offer FIVE YEARS GUARANTEE on Rectifiers.

SPECIAL FEATURES OF JINDAL''''S RECTIFIERS
• JINDAL’S Rectifiers are wound with electrolytic prime grade COPPER STRIP to minimize power losses. Our equipments are designed liberally as per capacity & are ideally suitable for marginal overloading conditions.
• Our Rectifiers are equipped with Vertical Rolling Contact Type ON LOAD VOLTAGE REGULATORS, which are manufactured by us in-house & is actually our forte across the country. Our Voltage Regulators are /- type wound with heavy section of copper strip & fitted with Carbon Rollers. The copper section is 3 times than that in conventional dimmer/thyristor control rectifiers & hence, losses are less than 20% compared to the latter. Efficiency of our Regulators is >99% (4–5% better than dimmer type), designed to deliver 100% continuous duty & for economic life of 15-20 years without any trouble.
• SILICON DIODES are tested in house and similar PIV batch & same forward drop diodes are used for equal load sharing & reducing power losses of diodes. Diodes are fitted with suitable heat sink & hole storage resistors & capacitors.
• We paint the equipment with EPOXY paint after two coats of epoxy primer, which is resistant to acidic environment.
• We use AE / RISHABH / ENERCON make meters only, which are quite accurate & durable.

OTHER FEATURES
•Annealed Cu/Al Bus Bars of electrolytic grade with conductivity >99.99% as per IS:613-1984
•IPT (Inter Phase Transformer) is connected between two star points of secondary of main transformers. The IPT improves the commutation, thereby increasing the rating of rectifiers.
•We use CRGO LAMINATION which has minimum power losses & results in better efficiency of equipments.

Each of our rectifier equipments that rolls out of the assembly line meets with TOTAL CUSTOMER SATISFACTION & their manufacturing is backed with:
• Improved techniques adopting advance technology relevant to core needs
• Use of highest quality raw materials
• Rigid quality control thru the process & rigorous testing of each rectifier before dispatch for: (a) Circuit testing, (b) Insulation Testing, (c) No Load losses, (d) Parallel sharing of diodes at reduced loads, & (e) Functional tests on auxiliary circuits.
• FIVE YEARS GUARANTEE from date of despatch against any manufacturing defect & faulty workmanship.

Thus, when you buy JINDAL’S Rectifiers, you are assured of quality, durability, efficiency & complete trouble-free performance. Scores of large/medium, reputed industrial houses have been using JINDAL’S Rectifiers for a number of years, names of some of whom are given later.

The standard specifications are as follows :
CAPACITY: Upto 1000 Volts & 25000 amps
TYPE: Stepless & 15-Step Variation
COOLING: ONAN
DUTY CYCLE: 100% continuous
INPUT VOLTAGE: 380-440 Volts, 3-Phase, 50 Hz, AC supply
OUTPUT VOLTAGE: Fixed rated max. DC voltage or Variable from Zero to max. rated voltage
OUTPUT CURRENT: From Zero to max. rated DC Current
TEMP. RISE: 35°C above ambient at top of oil
EFFICIENCY:
12V Rectifier : 82%
24V Rectifier : 90%
100V Rectifier : 94%
200V Rectifier : 96%
> 250V Rectifier: > 97%
RIPPLE CONTENT: < 5%. Option of 1% Ripple also available.
INSULATION: ''A'' Class for Oil-Cooled

THE STANDARD EQUIPMENT CONSIST OF:
.Linear Type Continuously Variable Rolling Contact On-Load Voltage Regulator (with straight /- connection) operable electrically with help of raise/lower push buttons & a step-synch motor or mannually with help of a T-Handle
.Copper Wound Delta/Double Star (hexa-phase) Step Down transformer as per IS 2026
.Copper Wound IPT
.Junction Box for 3-ph Input Terminals & Bus Bars for DC Output
.Meter Panel with DC Voltmeter & DC Ammeter & Raise/Lower push buttons
.Thermometer Pocket
.Oil Fill Plate
.Oil Level Gauge
.Oil Drain-out Valve
.Lifting Lugs
.Uni-Directional Wheels
.Name plate with complete equipment specs
.Earthing Terminals
.Indicators lamps for RYB Input AC supply as per IS-1248
.First Filling of Oil

OPTIONAL ATTACHMENTS:
.Constant Voltage/Current Controller
.DC Overload Trip System
.Signal Isolators
.Zero Rum Down System
.Programmable Ramping System

OUR CLIENTS:
Aarti, ABB, Amrit Vanaspati, Atlas Cycles, A.V.Alloys, Avon, Bajaj, BCH, BPL, Brakes India, Bundy, Chettinad Quartz, Endurance, Escorts, Essco, U-Flex, Fiem, Gujrat Cycles, Hema Engg(TVS), Hero Cycles, Hero Honda, Jindal Oil, Jaquar, Kanha Vanaspati, Kay Jay Auto, Lakshmi Precision Screws, LML, L&T, Markfed, Mechtech, Melpro, Minda, Munjal Showa, MVS Engg, Omax, Ordnance Factories, Oswal Vanaspati, Paper Products, Pentagon, Railway DLW, Rasoi, RMI Cycles, Rubamin, Ronuk Metafin, Shilp Gravure, Shriram Piston, Speedomax, Sterling Tools, Usha Amorphous, Vardhaman Steel, Vijai Electricals, Yamaha....

EXPORT CLIENTS:
NEPAL: Annarpurna, Ganapati, Nandan Ghee, Narayani Oil, Nirwana Vanaspati, Shri Krishna Oil, Swastik Oil
SRI LANKA: DSL Global, KAFE, Sunrise Exports(Paras Inds), Mechtech, SM Junaid, Naratha Agro Inds, Accor Inds
BANGLADESH: East Bengal Cycle, Bangladesh Cycle Inds
AFRICA: Assm General Trading, Asian Exports, Gopinath Mining
PHILIPPINES: Philippine Electric Co
BRAZIL & MEXICO: Vijai Electricals

Ultra Isolation Transformers has been generally observed that after installing the AVC those customers who have installed the sophisticated machinery/computerized system are still facing some problem in failure of the electronic cards. The problems might be occurring due to on / off switching of inductive , capacitive ,resistive load & electronic ballasts with PWM switching system the incoming supply line are superimposed with dangerous Surge / Spike with RFI noise & harmonics. /these Surges /Spikes occurring power supply for very short duration which leads to the shortening of components life & failure rate of electronic circuits or sophisticated machines & leading to heavy loses of production. It is therefore suggested to install JINDAL”S make Isolation Transformers with Automatic Voltage Controller & at present we are manufacturing Isolation Transformers from 10KVA to 1000KVA.

JINDAL’S make Natural Oil Cooled, Copper Wound industrial transformers and step up or step Down Transformers suitable for Indoor / Outdoor use at a max. amb .temp. of 45°C. CAPACITY: 10-2000KVA INPUT / OUTPUT VOLTAGE: Tailor made as per Client Specs WINDING: Copper strip (Double Wound or Auto Wound as per requirement) DUTY CYCLE: 100% Continuous COOLING: ONAN The standard equipment will primarily consist of: . Copper Wound (Double or Auto wound) transformer . Lifting Lugs . Oil Filling Plate . Oil Drain Valve . Oil Level Gauge . Rating Plate . Earthing Terminal . Junction Box for Input & Ouput Cable . Wheels for Uni – directional movement . First filling of oil. The M.S. cubicle is painted with two coats of epoxy paint after two coats of epoxy primer.

Our range of special purpose electrical transformers are used for different industrial purposes. This range of transformers comprises of the following:

• Balancing transformers for dual seam welding machines
• Two phase variable supply suitable for glass furnace or any other furnace

JINDAL''S Automatic Voltage Controller (AVC) with Linear Type Rolling Contact Regulator Technology, suitable for 100% continuous duty cycle, designed for high efficiency (>99%) & an economic life of 15-20 years. WHO NEEDS IT? Voltage variation is a common phenomenon across the country - voltage being low during day hours & high during evening / night hours & on holidays. Electrical equipments are designed for 230V(single-ph) / 400V(3-ph) & consume higher current at low/high voltage. Industrial units running round the clock, usually face problem of low/high voltage, resulting in equipments failure & power losses. Therefore, AVC is a must for industrial units having an acute failure rate of equipments such as bulbs, tubes, chokes, starter, contactor coils & motors. ADVANTAGES: (also refer table below) • Up to 10% saving on power bill (up 30% on lighting load) • Up to 80% reduction in breakdown of electrical equipments • Improvement in Power Factor by 10-15% • Uniform quality of end product & Improved Productivity of the plant • 80% Depreciation as per Income-Tax Act • Attractive Pay-back period of 8-10 months (owing to its high efficiency of ~99.5% in avg. running conditions)

Input Voltage Variation	% Reduction in Breakdown Posible Motor Load ( 10HP-Lighting Load )		ApproximatePowert Saving Possible Motor Load (10HP-Lighting Load)
380-400 Volts	Nil	Nil	Nil & No Servicestabilizer required
380-400 Volts	5%	10%	3%	5%
380-420 Volts	10%	20%	5%	10%
380-440 Volts	40%	40%	7%	20%
380-460 Volts	60%	60%	10%	30%

SPECIFICATION OF AVC JINDAL'S AVCs (Servo Voltage Stabilizers) - LT & HT AVRs are available in wide range & various models, for Balanced/Unbalanced Supply & Loads.

Capacity	Upto 5000 KVA
Input Voltage	360-450,350-460,340-460,340-480,320-460,300-460
Efficiency	99.5%, 99% , 98.7%, 98.5%, 98.5%, 98%
Output Voltage	400V /-1%
Cooling	ONAN
Type	Indoor/Outdoor
Temp. Rise	Max. 30-35ºC above ambient
Response Time	10 milli sec.
Correction Rate	6-10 V/sec (upto 500KVA) & 3-4 V/sec (above 500KVA)
Wave Form Distortion	Virtually Nil
Duty Cycle	100% Continuous

NOTE: NON-STANDARD INPUT/OUTPUT MODELS ARE AVAILBALE ON SPECIFIC REQUIREMENT. AVC equipment consists of the following: a. Linear Type Continuously Variable Voltage Regulator b. Double-wound Buck/Boost Transformer c. IC card for sensing & controlling in auto mode d. Cut-off Card for Over Voltage Protection e. Mode of operation: 1. Auto mode 2. Manual mode . With help of raise/lower push buttons . With help of T-Handle, if motor fails f. Voltmeters- for input/output g. Ammeter with CTs h. Voltmeter Selector Switch for RYB phases i. Ammeter Selector Switch j. MCBs for control circuit k. Lifting Lugs l. Drain Valve m. Oil Level Gauge n. Rating Plate o. Earthing Terminal p. Junction Box q. Thermometer Pocket r. Wheels for Uni-directional movement s. First Filling of Oil PAY BACK PERIOD Owing to its high efficiency & associated benefits, the payback period of JINDAL'S AVC is from 6-12 months, as confirmed by our various clients, depending upon the input voltage variation & number of working hours of the plant. Higher the input voltage variation, Shorter will be the payback period.

COMPARISON BETWEEN JINDAL''S & CONVENTIONAL VOLTAGE STABILIZERS

JINDAL''S ROLLING CONTACT AVCs	CONVENTIONAL DIMMER-TYPE AVCs
1. Power consumption is 0.5 to 1.5% depending upon the input voltage range.	1. Power consumption is 2 to 7% under similar conditions
2. Suitable for continuous 100% duty cycle	2. Suitable for only 30% to 40% duty cycle
3. Life at full load is 15-20 years	3. Maximum life is 2-3 years at full load
4. Five years UNCONDITIONAL GUARANTEE	4. Normally, One Year Warranty only
5. Negligible losses in full boost & buck condition	5. Max. losses in full boost & buck condition

APPLICATION Though Stabilizers are useful for any kind of application, these are most suitable for 16-24 hrs continuous process plants where breakdown due to fluctuation results in heavy losses. These include: Cement Plants, Floor Mills, Engineering Units, Automobile Component Units, Pharmaceuticals Plants, Paper Mills, tube Mills , Hotels / Clubs, High Rise Buildings/Offices, Hospitals / Nursing Homes, Cold Storages, Rolling Mills, Textiles Mills, Rubber Industries, Rice Shellers, Tea Estates, Oil & Vanaspati Units, Distilleries & Beverages, Footwear & Leather Units, Food Processing Units, Packaging Manufacturers, Plastic Moulding Units. OUR CLIENTELE: Our client list includes the most renowned Indian / MNC companies, like ABB, ADANI, AIRTEL, BAJAJ, BPCL, COCA-COLA, ESCORTS, GENPACT, HCL, HERO, HINDALCO, HLL, HONDA, HUTCH, HYATT, IDEA, INFOSYS, IOC, ITC, L&T, McDOWELL, OBEROI''S, PARLE, PEPSI, PFIZER, RANBAXY, TAJ, TATA, THERMAX, WHIRLPOOL, INDIAN RAILWAYS & DEFENCE.... Our Valuable client list is long & ever-growing. We take pride in claiming that Our Customers Are Our Sales Force, and indeed so.

JINDAL'S manufactures Vertical Rolling Contact type Voltage Regulators, which are wound with heavy section of copper strip suitable for 100% continuous duty cycle, meant for heavy-duty, industrial applications. A.C. VARIABLE SUPPLY SPECIFICATIONS: JINDAL’S make Natural Oil Cooled Type, motorized Isolated A. C. Variable Supply, Copper Wound Suitable for Indoor / Outdoor use at a max. amb. temp. of 45°C, 3-Phase, balanced input voltage: CAPACITY: 100 to 7500 kVA INPUT VOLTAGE: 3-Phase, 50 Hz, A. C. Supply OUTPUT VOLTAGE: From Zero to maximum rated AC voltage, Variable Steplessly by means of a motorized On Load Rolling Contact type Voltage Regulator an doutput voltage will be adjustable by Raise/Lower Switch manually COOLING: ONAN DUTY CYCLE: 100% CONTINUOUS VOLTAGE REGULATION: ±1% for fixed input voltage The Equipment will primarily consist of the following: a) Linear type continuously variable voltage regulator b) Double wound buck-boost transformer c) Mode of operation: Manual Mode i) With help of Raise/Lower Push buttons ii) With help of ‘T’ Handle, if motor fails d) Monogram plate e) Air release plug f) Rating and Diagram plate g) 2 Voltmeters – for Input and Output h) One Ammeter with CTs i) Voltmeter Selector Switch for I/P & O/P j) Ammeter Selector Switch k) MCBs for control circuit l) Lifting Lugs m) Drain Valve n) Oil Level Gauge o) Rating Plate p) Earthing Terminal q) Junction Box r) Thermometer Pocket s) Wheels for Uni–directional movement t) Silica Gel Breather u) Air release plug v) Conservator (optional) x) First filling of Oil.