Basics of stabilizer
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What is stabilizer and what is the their function? To know how they work and how to protect the electronic appliances of your home read the basics of stabilizers.
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- They work on the principle of Faraday's law of induction, where a changing magnetic field in the primary coil induces an electromagnetic force (EMF) in the secondary coil.
- Transformers are classified based on factors like performance, construction, voltages, applications, cooling, and input supply, and can be used to step up or step down voltages.
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Transducer
Transducers are devices that convert one form of energy into another. They are broadly classified as active or passive. Active transducers generate their own electrical signal during conversion and do not require an external power supply, while passive transducers require an external power supply and only change parameters like resistance or capacitance. Transducers are selected based on the physical quantity to be measured, the required accuracy, and compatibility with the measurement system. Common types of transducers include temperature, pressure, light, and sound transducers.
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This document discusses measurement techniques and instruments. It covers the basic components, classifications, functions, and errors of measurement instruments. The key points are:
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- Instruments can be classified as analog or digital, absolute or secondary. Accuracy depends on design, materials, and errors like systematic, random, and environmental errors.
- Measurements involve comparing an unknown quantity to a standard and expressing the result numerically. Direct comparison is used when possible, otherwise indirect methods are used. Proper standards and methods are required for meaningful results.
Pmmc instruments
The document describes the parts, construction, and working of a permanent magnet moving coil instrument. The key components are a permanent magnet, rectangular coil mounted on an aluminum former, hairsprings for control, and an aluminum cylindrical core. The coil moves in the magnetic field and an imbalance in flux density exerts a force on the coil. Advantages include low power consumption, high accuracy, and efficient damping. Disadvantages include only working with DC and higher cost compared to moving iron instruments.
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A servo voltage stabilizer uses a servo motor mechanism to continuously sense and monitor output voltage. It compares the output to a reference voltage and uses an error amplifier and motor driver circuit to control a servo motor coupled to an auto transformer. This allows the auto transformer to adjust the output voltage as needed to maintain a constant voltage, compensating for fluctuations in the input voltage. Servo stabilizers can maintain output voltages within 1% for input voltage variations of up to 50% and are useful for applications requiring stable voltage like industrial equipment, medical devices, and laboratories.
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Rahul Roy submitted a vocational training report on his experience at Bharat Heavy Electricals Limited (BHEL). BHEL is India's largest power equipment manufacturer, established in 1964. It has many manufacturing units across India producing equipment such as turbines, generators, transformers, and switchgear. Roy's report provided details on BHEL's products and the manufacturing processes for items like transformers, motors, switchgear, control gear, rectifiers, boilers, water turbines, and valves.
Switchgear Operation
The apparatus used for switching, controlling and protecting the electrical circuits and equipment is
known as switchgear.
The switchgear equipment is essentially concerned with switching and interrupting currents
either under normal or abnormal operating conditions. The tumbler switch with ordinary fuse is the
simplest form of switchgear and is used to control and protect lights and other equipment in homes,
offices etc. For circuits of higher rating, a high-rupturing capacity (H.R.C.) fuse in conjuction with a
switch may serve the purpose of controlling and protecting the circuit. However, such a switchgear
cannot be used profitably on high voltage system (3·3 kV) for two reasons. Firstly, when a fuse
blows, it takes sometime to replace it and consequently there is interruption of service to the customers. Secondly, the fuse cannot successfully interrupt large fault currents that result from the faults on
high voltage system.
With the advancement of power system, lines and other equipments operate at high voltages and
carry large currents. When a short circuit occurs on the system, heavy current flowing through the
equipment may cause considerable damage. In order to interrupt such heavy fault currents, automatic circuit breakers (or simply circuit breakers) are used. A circuit breaker is a switchgear which
can open or close an electrical circuit under both normal and abnormal conditions. Even in instances
where a fuse is adequate, as regards to breaking capacity, a circuit breaker may be preferable. It is
because a circuit breaker can close circuits, as well as break them without replacement and thus has
wider range of use altogether than a fuse
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Basics of stabilizer
- 1. Basics of Stabilizer Working of Stabilizer India’s Most Awarded Brand in Stabilizer
- 2. Introduction Voltage Stabiappliances lizer is an electrical appliance which is used to feed constant voltage current to electronic to protect and them from damage due to voltage fluctuation.
- 3. How they Work An Electromagnetic voltage regulator s that is used tap changers with autotransformers. If the output voltage is not in range a mechanism switches the tap, to change the transformer to move the voltage in acceptable range. It does not give a constant voltage output, but operates the system in a safe voltage range.
- 4. How to Choose Voltage Stabilizer First of all calculate the connected load to your stabilizer and choose the voltage stabilizer
- 5. Microtek Stabilizer Microtek Stabilizer is the most advanced and most awarded Brand. It has wide range of stabilizer for refrigerator, AC, TV/LED and Mains which have many features which is as follows. 1. It is based on save electricity. 2. It is a high performance voltage stabilizer. 3. More reliable. 4. Have low and high cut-off protection. 5. Intelligent thermal management to maintain the temperature of stabilizer. 6. Have intelligent Auto start. 7. 2 year warranty
- 6. Contact Us H-57, Udyog Nagar, Rohtak Road, New Delhi-110041. Phone : 011-42733377 Fax : 011-42733399 ho@microtekdirect.com http://www.microtekdirect.com