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AUTOMATIC VOLTAGE CONTROLLER (AVC) We command a highly skilled & experienced workforce at our plant guided by a team of competent Engineers having more than 30 years experience in this line. We believe in Quality oriented Products and with State of the art technology. We have established a renowned name as ARZOO ENERGY that has made a major Break-through in the field of engineering and electricity saving. Our high quality product and efficient services to our valued customers have enabled us with ample success. We would like to inform you that we are one of the leading manufacturers of above mentioned products and assure you that we are in a position to supply the same with best quality and strong service after sale. We would like to inform you that in our AVC & Rectifiers, we use Rolling Contact type Regulators where carbon roller are rolling on both sides of the coil, resulting in lesser wear and tear of the system. Also the overall cross-section area of the copper used in these regulators is more, resulting in increase in overall duty cycle of the equipment. The economic life of our stabilizers is easily 15 - 20 years. So, you can plan stabilizers as per your running load, keeping in mind your future expansion plans. VOLTAGE VARIATION: Voltage variation is a common phenomenon all over the country. Generally voltage is low during daytime and high during the night hours. Moreover on holidays, peak hours, rainy days and when the agricultural load is switched off, the voltage rises quite sharply - which is more dangerous. Electrical equipments are designed for 230 Volts (single phase) or 400 Volts (3-phase) and operate with optimum efficiency at its rated voltage. 90% of industrial load consists of motors. Electric Motors draw considerably high current at HIGH voltage and increase energy consumption, increase MDI and reduce power factor etc. These excessive power losses of motors generated at higher voltage results in their premature failure. Similar is the case with Bulbs and Tubes, when voltage increases above 230 Volts. For example, at 270 Volts, the power consumption of 60W-bulb increases almost 40% and the life of bulb reduce from normal 1000 Hours to mere 100 Hours only (as per analysis report of ISI mark bulb manufacturers). The industrial units having high failure rate of electrical equipments i.e. Electric Motors (particularly smaller rating motors up to 7.5 HP), Bulbs, Tubes, Chokes, Contactor coils etc., should verify that it may be due to Higher Voltage. We have supplied number of AVCs to different industries and our clients have confirmed the under noted advantages after installing our AVCs. 1) Up to 60% Reduction in Breakdown of Electrical Equipments 2) 5 - 10% Savings in Electricity Costs (up to 30% on lighting load) 3) Reduction in MDI by 10 - 15% 4) Attractive Pay-back period of 6 - 12 months 5) Improvement in Power Factor 6) Uniform quality of end product & Improved Productivity of the plant 7) Depreciation @ 80% from Indian Income Tax Act. PAY-BACK PERIOD: Owing to its high efficiency (~99.5% in avg. running conditions) and associated benefits, the payback period for ARZOO’S make AVC is typically between 6-12 months, depending upon the number of working hours and duration of high voltage. As required, we are pleased to submit our most competitive offer for Servo Stabilizer in linear regulator technology as hereunder: ‘ARZOO’S make Natural Oil Cooled Type Automatic Voltage Regulator, Copper Wound Suitable for indoor use at a max. amb. Temp. of 45°C, 3-Phase, with the following specs: The standard equipment will primarily consist of the following: a) Linear type continuously variable voltage regulator b) Mode of operation a. Auto Mode (Controller module for sensing and controlling) b. Manual Mode i) With help of Raise/Lower buttons ii) With help of 'T' Handle, if motor fails c) Over Voltage and Under Voltage Protection Inbuilt d) Single Phase protection Inbuilt e) Ammeter with CTs and selector switch f) Voltmeter Selector Switch for I/P & O/P g) Voltage adjust button on controller in Auto mode h) Indications - Input On, Low, High, O/p Cut off i) MCBs for control circuit j) Lifting Lugs k) Drain Valve l) Oil Level Gauge m) Rating Plate n) Earthing Terminal o) Junction Box p) Thermometer Pocket q) Wheels for Uni - directional movement PARAMETER SPECIFICATION TYPE BALANCE / UNBALANCED 3 Phase 4 Wire CAPACITY UPTO 5000 KVA VOLTAGE REGULATOR TECHNOLOGY On load Linear Stepless Rolling Contact mechanism Technology with Carbon Roller Assembly and linearly variable continuous voltage regulator. INPUT VOLTAGE 360 - 450V 350 - 450V 340 - 460V 330 - 470V 320 - 480V 300 - 500V 280 - 460V 260 - 460V 250 - 460V (Ph-Ph) OUTPUT VOLTAGE 380 / 400 / 415 V±1% (Ph – Ph) OUT PUT VOLTAGE ADJUSTMENT 380-415 V in 3 phase Connection Star Operating Frequency 47 – 53 HZ Waveform No distortion Output regulation 1% maximum from No load to full load Motor Drive Heavy Duty Synchronous Motor COOLING ONAN Operating temp Normal 0-45 C Temp Rise 45 C above ambient DUTY CYCLE 100% continuous LOAD CYCLE 100 % Continuous CORE USED CRGO M4 Grade 0.27mm thickness COPPER USED 99.9 % pure Electrolytic Grade Buck-Boost Transformer Yes, Series Buck Boost Double Wound Transformer TESTING Routine tests - No load, Full load, Short Circuit, Heat run, capacity, Range ELECTRONIC CONTROL CIRCUIT IC – Based RESPONSE TIME 10 milli seconds CORRECTION TIME 8-10 Volts/sec OVER LOAD CAPACITY Our Linear Regulator type Automatic Voltage Stabilizer will be very much suitable to withstand 120% over load Efficiency more than 98% Standard As per IS 9815 TERMINATIONS Separate Suitable Aluminum Bus Bars will be provided in the Termination Box. EXPECTED WORKING LIFE More than 25 Years. MODE OF OPERATION AUTO MODE MANUAL MODE (i) With raise / lower switch (ii) With “T” handle Controls Control will be provided in the same system on the front of the equipment TRANSFORMER OIL AS PER IS: 335
Isolation Transformer: used to establish a new neutral-ground bond in order to correct common mode and other grounding problems. A transformer can provide conversion of a Delta system (3 wire) to a Wye connected (4 wire) system. A shielded isolation transformer provides excellent protection from all types of N-G disturbances (impulses, RMS voltage, and high frequency noise). It also protects against voltage transients and spikes while offering full rd galvanic isolation, traps 3 harmonic and triplen harmonics. We hereby introduce ourselves as a manufacturer of dry type power transformers and reactors. We are established in this field since 2003. Our Dry Type Transformer adopt high quality low loss silicon sheet and arranged non-bobbin coil winding technology, and we apply vacuum pressure impregnating (VPI) process and solidify baking process to achieve insulation class H or C. Our transformers are widely used on any occasions where voltage is below 1000V and frequency below 400 Hz, and equipment’s which require voltage to step up or down. For small to medium capacity transformers, we apply enamel wire winding, and we apply foil winding for large capacity ones. Features 1) There are air flows between coil's layer to layer and between coil to core, resulting fast heat dissipation, and low temperature rise. 2) High grade iron core and winding can be wire or foil. 3) Small volume, light weight and good workmanship. 4) After vacuum pressure impregnating, the whole transformers and reactors are moisture proof and mildew proof. Insulation class H or C. 6) Lower audio noise. 7) Nomex based insulation system for foil winding transformers. Type 1) Step up Isolation Transformer 2) Step down Isolation Transformer Testing Our all magnetics are tested as per routine test mentioned as per IS2026. We can carry out other type testing as per your need. Applications of Isolation Transformers There is also some special application of isolating transformers, such us pulse transformers which transmit rectangular pulse signals and provide the electrical isolation. This type is suitable in some computer network designs, CNC machines, etc. Our products range is as under: 1) Single/3 phase Transformer, upto 300KVA, 50Hz - 400Hz. 2) Scott Connected (3phase - 2phase conversion)/ Open delta type (3phase--single phase conversion) 3) Input Chokes for A.C/D.C Drives, from 1hp to 750hp drives 4) Output Chokes for A.C/D.C Drives, from 1hp to 750hp drives 5) DC filter choke 6) Harmonic Filter Choke 7) Transformers for Plasma Welding Machines 8) Transformers with induction heating purpose.
Our Dry Type Transformer adopt high quality low loss silicon sheet and arranged non-bobbin coil winding technology, and we apply vacuum pressure impregnating (VPI) process and solidify baking process to achieve insulation class H or C. Our transformers are widely used on any occasions where voltage is below 1000V and frequency below 400 Hz, and equipments which require voltage to step up or down. For small to medium capacity transformers, we apply enamel wire winding, and we apply foil winding for large capacity ones. Features • There are air flows between coil's layer to layer and between coil to core, resulting fast heat dissipation, and low temperature rise. • High grade iron core and winding can be wire or foil. • Small volume, light weight and good workmanship. • After vacuum pressure impregnating, the whole transformers and reactors are moisture proof and mildew proof. • Insulation class H or C. • Lower audio noise. Type Isolation Transfonner: used to establish a new neutral­ ground bond in order to correct common mode and other grounding problems. A transformer can provide conversion of a Delta system (3 wire) to a Wye connected (4 wire) system. A shielded isolation transformer provides excellent protection from all types of N-G disturbances (impulses, RMS voltage, and high frequency noise). It also protects against voltage transients and spikes while offering full galvanic isolation, traps 3rd harmonic and triplen harmonics.
Power Saver: Its newest,easiest and modern technology of saving Electricity. It is the device which saves the Electricity on the Consumer side. With the simple structure and process Power Saver is the famous technology in the various Developed Countries. We ARZOO ENERGY are the famous manufacturer of the Power Saver of different ranges.With the team of Experienced Engineers for the Testing and also for the Research on the products which makes us more faithful in this Business. And Happy to inform that Arzoo's Power Savers are also now available on the online Business site such as Flipkart,Amazon and Shopclues... So Please Grab this Opportunity. Save Power,Save India
Today in this Modern World we all are so much depended on the Automation, which are worked by Electric Energy. As the Production of Electric Energy is limited due to limitation of Resources, thus some new ideas to be innovated so that Electric Energy consumption should be lessen. One of the newest technology is to save the Power at the Consumer side by using Reactive Power Compensation Method. We ARZOO Energy are Proud to be Manufacturer of Power Saver’s which saves power upto 40%. As the Updated Citizen its our duty to use the new technologies to save the Nation’s Resources and share this Idea with as much as we can. Save Power, Save India.
Introduction to Stabilizer: The embedding of microprocessor chip technology and power electronic devices in the design of intelligent AC voltage stabilizers (or automatic voltage regulators (AVR)) led to produce high-quality, stable electric power supply in the event of significant and continuous deviation of mains voltage. As advancement to the conventional relay type voltage stabilizers, modern innovative stabilizers use high performance digital control circuits and solid state control circuitry that eliminates potentiometer adjustments and allows the user to set voltage requirements through a keypad, with output start and stop facility. What is a Voltage Stabilizer? It is an electrical appliance which is designed to deliver a constant voltage to a load at its output terminals regardless of the changes in the input or incoming supply voltage. It protects the equipment or machine against over voltage, under voltage, and other voltage surges. Why Voltage Stabilizers Are Needed? Generally, each and every electrical equipment or device is designed for a wide range of input voltage. Depending on the sensitivity, the working range of the equipments are limited to a specific values, for instance, some equipments can tolerate ± 10 percent of the rated voltage while others ± 5 percent or less. The voltage fluctuations (rise or dip of the magnitude of rated voltage) are quite common in many areas, especially at terminated lines. The most common reasons for voltage fluctuations are lighting, electrical faults, faulty wiring and periodic turning off the device. These fluctuations create mishap to the electrical equipments or appliances Servo Controlled Voltage Stabilizers These are simply termed as servo stabilizers (work on servomechanism which also known as negative feedback) and the name suggests it uses a servo motor to enable the voltage correction. These are mainly used for high output voltage accuracy, typically ±1 percent with input voltage changes up to ± 50 percent. The figure below shows the internal circuit of a servo stabilizer which incorporates servo motor, auto transformer, buck boost transformer, motor driver and control circuitry as essential components. In this stabilizer, one end of buck boost transformer primary is connected to the fixed tap of the auto transformer, while other end is connected to the moving arm that is controlled by the servo motor. Secondary of the buck boost transformer is connected in series with incoming supply which is nothing but stabilizer output. Electronic control circuit detects the voltage dip and voltage rise by comparing the input with built-in reference voltage source. When the circuit finds the error, it operates the motor that in turn moves the arm on the autotransformer. This could feed the primary of buck boost transformer such that a voltage across the secondary should be the desired voltage output. Most servo stabilizers use embedded microcontroller or processor for the control circuitry to achieve intelligent control. These stabilizers can be single-phase, three-phase balanced type or three-phase unbalanced units. In single phase type, a servo motor coupled to the variable transformer achieves the voltage correction. In case of a three-phase balanced type, a servo motor is coupled with three auto transformers such that stabilized output is provided during fluctuations by adjusting the output of the transformers. In an unbalanced type of servo stabilizers, three independent servo motors coupled with three auto transformers and they have three separate control circuits. There are various advantages of using servo stabilizers compared with relay type stabilizers. Some of these are higher correction speed, high precision of stabilized output, capable to withstand inrush currents, and high reliability. However, these require periodic maintenance due to the presence of motors.
SERVO CONTROLLED VOLTAGE STABILIZER (SCVS) Both electrical and electronics appliances occupy a prime place of importance in our lifestyle and thus usage of electricity in modern life has substantially increased. But, voltage supply, on the hand, receives very little attention from the consumers. Surprisingly, unstable voltage supply has the potential of causing havoc due to lack of foresight on our part. Even you must have observed the heavy variations in voltage supply during day or night, which results in frequent breakdown, Low production and loss of energy. Thus you need to consider good quality servo controlled voltage stabilizers with various important factors taken into account. This will not only ensure safety but an effective reduction in electricity bills and an increased life span for your sophisticated equipment's. We, Arzoo, are manufacturing servo controlled voltage stabilizers ranging from 1 KVA-1500KVA [conforming to IS:9815] available in multiple configurations, that undergoes through a series of quality tests conducted in our laboratory. In the field of power saving, we expertise for more then Eighteen years, providing total power solutions, prompt and reliable after sales service / support to our customers through an experienced team of service engineers. The ARZOO range of Servo Control (Voltage Stabilizers) are universally recognized as the finest range of servo-controlled voltage stabilizers. The units couple exceptional performance with unequalled build quality to provide an unmatched combination of reliability and versatility. The units are designed to correct power quality problems like brownouts, surges, over-voltage, sags, voltage imbalance, unbalanced current, line noise etc. in the main power supply. Our Servo Control features voltage regulation, isolation, filtering, harmonic cancellation, transient suppression, surge protection, or any combination of these in a one-box solution. Besides that, our patent voltage regulating transformer enabling us to make unique small dimension Servo Control especially for individual regulation. Features : Available from - 1 KVA to 1500 Kva. Correction Rate better than 60 V/sec. Cooling : Natural Air / Oil. Ambient Temperature 0 to 500 C. Selection Auto / Manual. Under / Over Voltage protection. Overload & short - circuit protection. More than 95% efficiency. Timer Control. Built in EMI / RFI Filter.
A voltage regulator is designed to automatically maintain a Constant Voltage level. A voltage regulator may use a simple feed forward design or may include negative feedback. It may use an ElectroMechanical mechanism, or Electronic Components. Depending on the design, it may be used to regulate one or more AC or DC voltages. Electronic voltage regulators are found in devices such as computer Power Supplies where they stabilize the DC voltages used by the processor and other elements. In automobile Alternators and central Power Station Generator plants, voltage regulators control the output of the plant. In an Electric Power Distribution system, voltage regulators may be installed at a Substation or along Distribution Lines so that all customers receive steady voltage independent of how much power is drawn from the line. Automatic Voltage Regulator : Generators, as used in power stations or in standby power systems, will have automatic voltage regulators (AVR) to stabilize their voltages as the load on the generators changes. The first automatic voltage regulators for generators were electromechanical systems, but a modern AVR uses solid-state devices. An AVR is a feedback control system, that measures the output voltage of the generator, compares that output to a set point, and generates an error signal that is used to adjust the excitation of the generator. As the excitation current in the field winding of the generator increases, its terminal voltage will increase. The AVR will control current by using power electronics devices; generally a small part of the generator's output is used to provide current for the field winding. Where a generator is connected in parallel with other sources such as an electrical transmission grid, changing the excitation has more of an effect on the Reactive Power produced by the generator than on its terminal voltage, which is mostly set by the connected power system. Where multiple generators are connected in parallel, the AVR system will have circuits to ensure all generators operate at the same Power Factor. [1] AVRs on grid-connected power station generators may have additional control features to help stabilize the electrical grid against upsets due to sudden load loss or faults.
Harmonic Distortion Sources and Effects Events over the last several years have focused attention on certain types of load on the electrical system that results in power quality problems for the user and utility Equipment which has become common place in most of the facility. Non - linear loads generates voltage and current harmonics, which can have adverse effect on equipments, which are designed for operation as linear loads (i.e. Loads designed to operate on a sinusoidal waveform of 50 or 60 Hz.) Effects of non-linear load: Higher heating losses in the transformers Harmonic can have a detrimental effect on emergency generators, telephone and other sensitive electrical equipments. When receive power compensation (in the form of passive power factor improving capacitors) is used with non-linear loads, resonance condition can occur that may result in even higher levels of harmonic voltage and current distortion, thereby causing equipment failure, disruption of power services, and fire hazards in extreme conditions. The electrical environment has absorbed most of these problems in the past. However, the problem has now increased in a magnitude where Europe, the US, and other countries have proposed standards to responsible engineer system considering the electrical environment. IEEE 519-1992 and IEC 555 have evolved to become a common requirement cited when specifying equipment on newly engineered projects. The broad band harmonic filter was designed in part, to meet this specification. The present IEEE 519-1992 document establishes acceptable levels of harmonics (voltage and current) that can be introduced into the incoming feeders by commercial and industrial users. Where there may have been little cooperation previously from manufacturing to meet such specification, the adoption of IEEE 519-1992 and other similar world standards now attract the attention of everyone. Generation of harmonics: Harmonics are sinusoidal wave forms. They have frequency in multiple of fundamental frequency. They are produced by equipment using frequency conversion technology. They are also generated due to power drawing pattern of non-linear loads. Mitigation of Harmonic Distortion For resolution of harmonic problem, various techniques have been proposed to reduce the impact of load harmonic currents on the input current to an electrical system. Essentially, the intent of all these techniques is to make the input current more continuous so as to reduce the overall current harmonic distortion. The various techniques can be classified into four broad categories, a) The use of line reactors and / or DC link chokes b) Installation of passive filters (series, shunt, and low pass broad brand filters) c) Phase multiplication (12-pulse, 18-pulse rectifier system.) d) Harmonic compensation by active filtering. Harmonic protection filters are used for improvement of power factor and part elimination of harmonics. They are nothing but a combination of reactors and capacitors, suitably detuned. They are useful when distortion is 15 to 40 %. Advantages of Harmonic Filters: a) Protect capacitors from harmonic overloading. b) Eliminate upto 97 % predominant harmonics. c) Avoid harmonic amplification in the system. d) Improve power factor. This system can be configured to operate in fully automatic mode. The objective is to eliminate high level of harmonic current to acceptable level to comply with utility regulation. They provide traps for individual harmonics frequency and provide reactive power compensation at fundamental frequency. Harmonic filtering offers the following benefits: 1) Elimination of power factor penalty. 2) Improvement in reduction in energy bill.( due to improvement of PF) 3) Release of additional VA capacity in the system. 4) Improvement in voltage profile. 5) Reduction in line losses 6) Reduction in harmonic currents. 7) Improvement in overall power quality. 8) Improvement in life of electrical equipment. 9) Improvement in system reliability.
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