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2022-08-11
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Zibo used transformer manufacturer answers the working principle of the transformer for you

Zibo used transformer manufacturer answers the working principle of the transformer for you

source network release time: 13:32 this classification information is released by the user

Zibo used transformer manufacturer answers the working principle of the transformer for you. In all faults of the transformer * the common is the short circuit of the transformer, Many reasons may lead to transformer short-circuit. The consequences of transformer short-circuit are self-evident. The consequences are very serious. In fact, we all know that transformer short-circuit is inevitable, but we can improve the ability of transformer to resist short-circuit, which is completely possible, Let's take a look at the specific measures:

this * recycled cotton: the transformer used as insulation and sound-absorbing materials for carpets has been developing and changing for several years, especially in various fields. The technology of transformer should adapt to the development of the whole society. With the improvement of technology and the continuous expansion of demand, transformer manufacturers continue to expand in line with the trend of the times, although it is developing rapidly, However, it can be seen that the general technology is relatively backward, the scale of the factory is relatively small, and the transmission loss rate of the transformer is relatively high. Today, it is necessary for us to explain to you the relevant concepts and main manifestations of the transmission loss rate of transformers:

transmission loss refers to the production consumption and unknown losses of transmission and distribution equipment that occur in the whole process of power supply production in power supply enterprises, referred to as "line loss". It refers to the electric energy consumption and loss from the metering point of electric energy sent out by the power plant (excluding auxiliary power) to the user's watt hour meter, which is specifically divided into no-load loss, load loss and other losses

(1) no load loss: generally, it does not change with the load change. As long as the electrical equipment has voltage, it will consume electric energy. It includes: 1) iron loss of transmission transformer and distribution transformer; 2) Corona loss; 3) Iron loss and insulator loss of condenser, voltage regulator, reactor, arc suppression coil and other equipment; 4) The loss of the voltage coil of the user's watt hour meter and the loss of the accessories of the watt hour meter

(2) load loss: it changes with the change of load and is proportional to the square of current. It includes: 1) line loss of transmission and distribution lines; 2) Winding losses of transmission and distribution transformers; 3) Loss of condenser, voltage regulator, reactor, arc suppression coil and other equipment; 4) Loss of household line; 5) Energy loss of watt hour meter

anyone who knows about transformers will know that transformers are relatively large, and they will encounter many problems in the process of transportation, and the transportation cost is also very expensive. This is a problem that many people are concerned about. Today I will explain it in detail

in such a modern society, transportation is very developed, and there are many ways of transportation, such as express delivery, air transportation, railway, logistics, factory delivery, etc. General transformer manufacturers need to consider the transportation of transformers, transportation costs, delivery time, etc., which all need our consideration. Therefore, some customers will choose some surrounding manufacturers to order, but there are also great limitations in the mode of transportation. The specific performance is as follows:

1 The ordering and delivery time is too long, and customers can't wait too long

2. The transportation cost is too high, and some customers are willing to bear it by themselves

3. The customer didn't understand the actual situation of the three-phase transformer manufacturer, so he couldn't go to the local manufacturer for on-site investigation, and was skeptical of the manufacturer

therefore, many manufacturers now consider more for customers and do better in service. Companies generally use logistics to provide direct door-to-door service, which is very good for many customers. Therefore, many people will choose this way of life, because more than 3/4 of the current logistics is hot-air plastic granulator, which is relatively preferential. Therefore, such transportation mode can be selected for small control transformers or mining transformers

sometimes the transformer we use will have a short circuit, which is related to the voltage received by the transformer and its own performance. In the years when transformers were just introduced, there were many short circuits in transformers, and we didn't take any preventive measures. However, with the continuous improvement of transformer performance, transformer began to have transverse differential protection. This device is mainly to prevent the occurrence of transformer short-circuit fault. How does transformer transverse differential protection prevent transformer short-circuit

the transverse differential protection of transformer defends the faults in the mailbox such as inter turn short circuit of winding and branch open welding; The longitudinal differential protection of transformer protects against the faults of bushing and outgoing line outside the oil tank. The internal fault of oil tank, oil level reduction, coil turn to turn fault, etc. have been realized by gas protection, so the transformer is only installed with longitudinal differential protection to prevent the short-circuit fault outside the oil tank such as bushing and outgoing line. The longitudinal differential protection of transformer is composed of current transformers and relays on both sides of the transformer. The two current transformers are connected in series to form a loop, and the current relay is connected to the loop in parallel

therefore, the current of the current relay is equal to the difference between the secondary side currents of the current transformers on both sides. Under normal conditions or when a fault occurs outside the protection range, the secondary side currents of current transformers on both sides are equal in size and phase, so the differential current flowing through the relay is zero. However, if a short-circuit fault occurs in the protection area, the differential current flowing through the relay is no longer zero, so the relay will act to trip the circuit breaker, thus playing a protective role. If it is inside the oil tank and discharge occurs

the gas relay may act. The differential protection will also act. If it is outside the oil tank, the differential protection will act. If the fault is large enough, the heavy gas protection will definitely act. If the winding is short circuited between turns, the differential should also move the main transformer. Then it can be protected only by replacing the deformed and worn parts. There are two kinds of protection: electric quantity protection, which can judge the non electric quantity protection by collecting the internal electric quantity change of the main transformer, such as heavy gas protection, on load voltage regulating transformer and on load gas protection, The gas changes inside the transformer are collected to judge

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