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Sep 28 2021 Ajinkya k

APAC HVDC Transmission Systems Help In Controlling and Transmitting High Voltage Current and Include Several Modern Technologies

APAC HVDC transmission systems are very useful for power distribution, overloading, and overload control. APAC HVDC transmission system is a direct current device that uses large alternating currents to convey small alternating currents. The main components of APAC HVDC transmission systems include transfer conductors, inlet and outlet coils, voltage regulators, voltage control circuits, and a control breaker. It is used in many industries such as industrial, construction, and telecommunication to relay high-voltage electric currents. It can be used in heavy-duty electrical requirements in the automotive, aerospace, and marine industries as well as many other application applications.

APAC HVDC transmission systems convert high-voltage electric currents into lower voltage alternating currents, which are then routed to different loads. To do so, it uses several voltage regulators, which work on the principle of phase shifting. Phase-shifting controls the rate of change in voltage between two different points. These regulators also provide additional features such as variable limit and threshold controls. For large APAC HVDC transmission systems, multiple phases are required for the same application. A complete system consists of five to eight phases. These high-voltage direct current devices have a variety of features, such as overload current protection, thermal control, waterproof rating, and temperature range protection. The high-voltage direct current systems also have a special characteristic of being self-regulated.


There are several types of APAC HVDC transmission systems, which include the following. First, there is the direct control system. In this system, the control circuit is connected directly to the high voltage source and provides the entire voltage regulation. The disadvantage of this type of high-voltage regulator is that it requires large electrical contacts that are difficult to maintain. Second, there is the combined control system. In this system, one input is coupled with high voltage. Then, there is a drain or commutator that is placed between the input terminals. In addition, the limit switch of the output terminals is connected to the commutator. The advantage of this kind of regulator is that there is no need for thermal control, however, there is a risk of short-circuit or fire occurs due to contact between the terminals and the limit switch.

Thirdly, there is the multiple-stage regulator. In this system, there are three separate controls. It starts with an on-off switch that controls the output current. The second stage controls the regulated voltage; while the third stage controls the input current. Fourthly, there are combination regulators. In this system, a single control is coupled with the regulated output. One limit switch is used for the regulated limit; while the other is used for switching the regulated output on and off. The fifth and last stage is the accessory terminal. In this system, users can add one more control to the circuit.

Finally, there are switching systems in APAC HVDC transmission systems that include two individual controls and high voltage. There are a primary control and an idle switch. Then, there is an idle commutator to limit or control the output. When the regulated high voltage is connected in the second commutator, the limit switch is opened and the output current is controlled. In using the APAC HVDC transmission systems, users have to ensure that there are no short circuits present. This will reduce the risk of an accident. For this reason, there should always be at least two power points for the high-voltage input and output. The power points should be placed far away from each other. If this is not done, there is a great risk of a fire.


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Ajinkya k

pune - maharashtra - India

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