The cross-sectional wiring of transformer input and output power plugs shall comply with the provisions of their current size; It should be equipped according to the current intensity of -A / Min.
After sampling， bind the laminated glass stopper firmly with clean paper or cloth to prevent dirt and water from contaminating the bottle stopper.
Populus tomentosaThe top and middle of the transformer oil tank， the flange plate， barrel skin and the middle of the waterproof sleeve at the upper end of the automobile oil tank. The internal iron core and winding clamp are hot due to partial magnetic leakage， resulting in insulation damage.
Therefore， in the operation prevention and regulation of relay protection dry-type transformer， lock the fault point， and analyze the short-circuit fault types of relay protection dry-type transformer. At the same time， if all fields are clear， disconnect the switching power supply at the fault point， the maintenance work of employees will be carried out smoothly， and the harm will not expand to a greater extent.
KuruzukatiaThe representative mode of connection group of dry-type transformer is: English capital letters indicate the wiring on the primary side (or primary side) and English letters indicate the wiring on the secondary side (or secondary side). Y (or y) is star wiring， and D (or D) is triangular wiring.
If the oil immersed transformer is burned by the cover of the transformer， when the oil immersed transformer fails， open the lower side of the transformer and place an appropriate part. When the oil immersed transformer is on fire， the oil cannot be released to avoid the occurrence of the oil immersed transformer. At the same time， use detection equipment to put out the fire immediately. In order not to expand the hazard， the fire brigade must be notified.
Common problems of tap changer of power transformer
Dry type transformer factory
The dry-type transformer used for power plant voltage transformation is different from the oil transformer. It is strictly prohibited to lead the way at the bottom voltage side to prevent the insulation layer of the dry-type transformer from penetrating due to overvoltage caused by overvoltage at the power grid side or lightning stroke on the line.
Before application， the sampling container shall be cleaned with vehicle gasoline， soapy water or other organic solvents (such as trisodium phosphate) except oil stains，Populus tomentosa500 KVA oil immersed transformer， and then washed with tap water until it is not alkaline， and the water can be evenly distributed from the bottle， and then cleaned with purified water for many times. The cleaned sampling container shall be dried in a ℃ drying oven. After refrigeration， and there are many situations that the hanging core of dry-type transformer must pay special attention to. Therefore， the hanging core of dry-type transformer should be carried out according to the above matters， so as to promote the safety of dry-type transformer!
When using the oil sample of the power transformer in operation， it is necessary to add some oil from the oil gate valve at the lower part of the oil tank or the sampling gate valve to release about kg of waste liquid stored at the bottom to clean the oil inlet， and then take the oil sample.
What is the wavelength of oil immersed transformer?
() the installation position of secondary commercial insurance of transformer on column and ground shall meet the following requirements: if there is an disconnector on the secondary side， it shall be installed between the disconnector and low-voltage composite insulator， or the circuit breaker shall be selected as the disconnector; If there is no disconnector on the secondary side， it shall be installed on both sides of the low-voltage composite insulator， and the insulated cable jumper shall be connected to the insulated cable on both sides of the circuit breaker.
StatisticsOil leakage at looper flange
Relevant responsible persons of the transformer Federation of China Household Appliance Industry Association show that the development prospect of transformers in China in the future is still the development trend of environmental protection， fire safety and explosion-proof and high reliability. There are two key development prospects: one is the development trend of high voltage and high voltage，Populus tomentosaReactor and transformer， especially kV and kV. The second is the development trend towards environmental protection， energy conservation and miniaturization. The former key is applied to the long-distance substation project route， and the latter key is applied to the substation project route in big cities.
The technical specification of power consumption requires that the resistance of maintenance grounding wire shall be ≤ Ω， The resistor is generally more than & omega;，Populus tomentosaBasket electric box transformer， According to Ohm"s law， when the insulating layer is damaged， the current is only / of the total current flow， so as to play a guarantee effect. The higher the voltage， the smaller the resistance， in other words in the case of high voltage. We can care about the power transformer plant and master a lot of professional knowledge.
Populus tomentosaHow to reduce the failure of dry-type transformer?
For kVA power engineering transformer， plastic parts are selected in the middle of iron core clamp and electromagnetic coil to keep the electromagnetic coil in a stable clamping state to reduce noise.
How much is the power transformer
