The secondary inductive equipment of the distribution station (such as transformer， voltage transformer， automobile relay， AC contactor， the winding transformer core will send out a symmetrical rhythm and a certain tone & ldquo; Buzz， buzz & rdquo; Sound. The operation staff of the transformer manufacturer should understand and grasp the characteristics of the noise. When the equipment has common faults，33kV power transformer there will be noise and even & ldquo; Crackle & rdquo; The charging and discharging sound can distinguish the generation and characteristics of common equipment faults according to the music law and sound transformation when everything is normal and abnormal.
4Dry type transformer is a common electrical equipment，LakovnikUnit price of box type transformerDifferent industries which can be used to convert the alternating voltage of one standard value into another standard value of the same frequency. The step-up dry-type transformer is used to convert the low-grade alternating voltage into another high-grade alternating voltage of the same frequency. It is widely used in high-frequency industries， such as variable frequency power supply.
tBeneshovThe switching power supply lacks one phase of power;
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 transmission overvoltage caused by overvoltage at the power grid side or lightning stroke from penetrating the insulation layer of the dry-type transformer.
MKang DaiThe insulation between silicon steel sheets is damaged resulting in overheating and melting of the iron core;
RvHow is the quality level of dry-type transformer compared with foreign countries?
The transformer manufacturer will introduce the efficiency of the transformer to you
For oil transformer oil replenishment， unused transformer oil conforming to the new standard should be selected first. In addition， same brand and same additive type is expected to have a stronger effect. The characteristics of the oil should not be lower than that of the oil in mechanical equipment. When the new remaining oil is less than %， if there is more new remaining oil， oil shall be added before oil type Chromatographic analysis and pressure test shall be carried out to establish that there is no oil stain， and the acid value and dielectric loss shall not exceed the oil in the machinery and equipment.
tDeterioration damage of transformer core insulation
TUnder normal conditions different oil-based oils cannot be mixed. Under special circumstances， if it is necessary to use new oil of different grades， it should be determined whether the mixed oil with ice degree can be used according to the requirements of the region，33kV power transformer and then the oil mixing test should be carried out.
GPromotionDry type transformer is a common electrical equipment， which can be used to convert the alternating voltage of one standard value into another standard value of the same frequency. The step-up dry-type transformer is used to convert the low-grade alternating voltage into another high-grade alternating voltage of the same frequency. It is widely used in high-frequency industries， such as variable frequency power supply.
wOOil sample inspection & mdash; & mdash; the performance parameters such as compression resistance and residue shall be carried out every three years. The long-term overload or overload of the transformer can reduce the cycle time.
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， low noise， 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， 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.
Customer firstrTransformer manufacturers said that at this stage， the energy-saving distribution transformer Market in China is relatively scattered， coupled with the constraints of factors such as low threshold in the field，33kV power transformer uneven companies， lack of evaluation and specifications，LakovnikUnit price of box type transformerDifferent industries and inadequate technical innovation， resulting in the slow marketing and promotion of energy-saving transformers.
XManufacturing process and steps of dry-type transformer
The step-up dry-type transformer refers to the instantaneous operation of voltage. At this stage， there are few manufacturers of dry-type transformer that can reasonably guarantee the instantaneous step-up in China. The step-up dry-type transformer has strong step-up capacity and good practical effect. The difference depends on that the transformer power switch without excitation regulator does not have the ability to change gear with load. Because this kind of tap power switch can cut off the whole process in a short time during the whole process of gear change cutting off the load current will cause arc burning between circuit breakers， tap power on and off or short circuit fault， so the dry-type transformer shall be powered off during regulation. Therefore， it is generally used as a dry-type transformer that is not very strict in voltage regulation and does not need to be adjusted frequently.
iBeneshovOnce the insulation material of electrical equipment is overheated， the surrounding gas will cause a kind of odor. This kind of odor can be sniffed out by normal patrol staff. When you smell such odor during normal inspection， you should carefully inspect the equipment and parts with overtemperature until you find out the cause.
tEWhen the output power P of the transformer is equivalent to the input power P，Power transformer price: 1000KVA, 33kV power transformer, 25kV power transformer, power transformer, oil immersed transformer, dry-type transformer factory the efficiency & ETA; Equivalent， the transformer will not cause loss. But in fact， there is no such transformer. Transformer always causes loss when transmitting electromagnetic energy. 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.
The insulation of the through core anchor bolt clamping the iron core is damaged， resulting in a short circuit fault between the silicon steel sheet of the iron core and the through core anchor bolt;