what is octc in transformer?
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Transformer Control Off-circuit tap-changers (OCTC) are used for voltage adjustment in oil-immersed transformers. In contrast to on-load tap-changers, off-circuit tap-changers can operate only when the transformer is deenergized.
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In real transformers, the two coils are wound onto the same iron core. The purpose of the iron core is to channel the magnetic flux generated by the current flowing around the primary coil, so that as much of it as possible also links the secondary coil.
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Minimum Oil Circuit Breaker or MOCB These types of circuit breakers utilize oil as the interrupting media. However, unlike bulk oil circuit breaker, a minimum oil circuit breaker places the interrupting unit in insulating chamber at live potential. The insulating oil is available only in interrupting chamber.
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Transformers do not pass direct current (DC), and can be used to take the DC voltage (the constant voltage) out of a signal while keeping the part that changes (the AC voltage). In the electrical grid transformers are key to changing the voltages to reduce how much energy is lost in electrical transmission.
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An ideal transformer is an imaginary transformer which has. - no copper losses (no winding resistance) - no iron loss in core. - no leakage flux. In other words, an ideal transformer gives output power exactly equal to the input power.
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In an ideal transformer, the power to the primary coil is transferred to the secondary coil without any loss which does not occur in practice - practical transformer. This is the difference. In fact, losses are a part of any kind energy transfer which is why people work towards minimising all kinds of losses.
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Octinoxate, also called Octyl methoxycinnamate or OMC, is a chemical commonly used in cosmetic and skin care products around the world. ... So far, there's not much evidence that this chemical causes serious harm in humans. However, it has been shown to be potentially harmful to animals and the environment.
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['Step up and Stepdown Transformer.', 'Power Transformer.', 'Distribution Transformer.', 'Uses of Distribution Transformer.', 'Instrument Transformer.', 'Current Transformer.', 'Potential Transformer.', 'Single Phase Transformer.']
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CABC technology. Lava uses content adaptive backlight control (CABC) technology on the 4.7-inch display. This technology automatically adjusts backlight intensity of the display to save battery life.
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The transformer transformation ratio or transformer turns ratio (K) is the quotient value obtained by dividing the number of turns of the primary winding (N1) and the number of turns of the secondary winding (N2). Then K = N1/N2.
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–01. Overview. The ZCT series are compact, molded-type, zero- phase current transformers. They are ideal for improving the sensitivity, compactness, and weight of electric shock prevention.
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An isolation transformer consists of a primary and a secondary coil winding that are electrically separated by a main insulation. ... An autotransformer has a primary and a secondary coil winding that are partly shared. As such, smaller sizes can offer the same capacity.
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When a dc supply is provided to the transformer primary no self induced emf will be generated (no back emf). Therefore heavy current will flow in the transformer primary winding which may result in burning down the transformer primary winding.
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AOC is a very old brand for monitors and made very good CRT monitors once upon a time, and in LEDs if youre getting a good deal go for it, afaik its the same level as BenQ, the response rate you mentioned 1ms or 5 ms.
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['Elita One.', 'Chromia.', 'Firestar.', 'Greenlight.', 'Lancer.', 'Moonracer.', 'Arcee (Dreamwave Generation One continuity, Diamond Select profile, MC Axis comics, TV Magazine story pages, Transformers: Legends)']
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Unit Auxiliary Transformers (UAT) Transformers The Unit Auxiliary Transformer is the Power Transformer that provides power to the auxiliary equipment of a power generating station during its normal operation. ... It is generally a three-winding transformer i.e. one primary and two separate secondary windings.
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In core type transformer both the primary and the secondary windings are placed on the side limbs whereas, in shell type transformer, the windings are placed on the central limbs of the transformer. The core type transformer has two magnetic circuits whereas the shell type transformer has one magnetic circuit.