It will also produce many faults， effectively deal with various faults of oil immersed transformer， make full use of the performance indicators and advantages of oil immersed transformer， and continuously improve the safety factor of oil immersed transformer. Ignition is a common fault of oil immersed transformer. The key fault of oil immersed transformer is short-circuit fault， and short-circuit fault is more general.
What is the important role of power transformer
CehagarneaHow to maintain dry-type transformer?
Avoid aging and damage of power transformer iron core insulation: aging of iron core insulation or damage of waterproof sleeve holding anchor bolt will cause large vortex of iron core， and long-term scalding of iron core will lead to insulation aging.
ShangdingThe no-load impulse closing working voltage shall not exceed % of the working voltage marked on the gear of the transformer， the closing frequency shall be times， the delay time after power receiving shall not be less than min， and the time interval of each closing shall not be less than min.
After sampling， bind the laminated glass stopper firmly with clean paper or cloth to prevent dirt and water from contaminating the bottle stopper.
The manufacturing process of dry-type transformer is very process and must be technically as a certain pillar. Only in that way， the performance of dry-type transformer will be more stable. What are the common manufacturing processes and steps of dry-type transformer?
The clock expression is used to indicate the phase difference correlation of the working voltage of the secondary side line. The phasor of the working voltage of the primary side line is used as the minute hand， the fixed finger is at o"clock， and the phasor of the phase voltage of the secondary side is used as the second hand.
The transformer manufacturer said that the selection should be based on the application environment of the dry-type transformer. For the extremely extreme environment， the dry-type transformer should be poured with epoxy resin glue. Because this kind of environment does not need to heat the dry-type transformer， it can operate immediately. However， for the general application environment， the class H dry-type transformer can be used.
The noise of dry-type transformer comes from
A complete range of productsIn relay protection dry-type transformer， the disconnection of the fault point is related to each other. In a word， it will affect the whole power circuit
The oil in the machinery and equipment of the oil storage tank shall generally stand for more than h before sampling; it is not necessary to stand when sampling on the running power transformer.
After hours of continuous trial operation with a certain load，Cehagarnea1250 dry type transformer size， the main body and accessories of the transformer are all normal， and the transformer will turn to all normal operation.
For the installation of lightning rod， it is very easy to damage the relay protection inside and outside of dry-type transformer by lightning. If it is a serious situation， it is very easy to cause fire accidents， power failure， damage to machinery and equipment， etc.
middlemanThe switching power supply lacks one phase of power;
When the output power P of the transformer is equivalent to the input power P， the efficiency & ETA; Equivalent the transformer will not cause loss. But in fact， there is no such transformer. The electromagnetic energy of transformer always causes loss. The key of this kind of loss is copper loss and iron loss. Copper loss refers to the loss caused by the number of turns of transformer coil. When the current has a fever according to the number of turns of the coil， part of the electromagnetic energy changes into energy and is lost. Because the electromagnetic coil is generally wound by copper core wire with insulating layer， it is called copper loss.
If the volume of power transformer is too small， the transformer will be overloaded for a long time and it is easy to destroy machinery and equipment. Therefore， which is not suitable for too large or too small.
CehagarneakV and above & plusmn; No load of rated voltage; Part of the circuit breaker of the tap power switch is installed in the phenolic resin insulating paper cylinder， and the insulating paper cylinder is installed on the wooden frame. The actual operation rocker is connected with the dynamic circuit breaker of the tap power switch according to the wooden insulating rod. The on load tap off power switch is insulated from the ground by the insulating paper cylinder of the power switch itself and the insulating limit.
What is the reason for the shutdown of power transformer?
The input and output three-phase power lines shall be connected to phase a， green and red bus duct of transformer terminal board. The zero line shall be connected to the neutral zero line of transformer voltage，CehagarneaSupply of power transformer，CehagarneaHow much is a 50 KVA box transformer， and the grounding wire， transformer casing and its transformer point shall be connected to each other. At ordinary times， the ground wire and zero wire are led out by the neutral wire of the transformer. (for example， the transformer box shall be matched with the ground wire mark of the shell and connected with each other). Check the input and output lines to ensure they are appropriate and accurate.