Therefore， in the operation prevention and regulation of relay protection dry-type transformer， it is necessary to find the short-circuit fault point according to the fault situation， 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，HelohovichEnergy saving of distribution transformer， the maintenance work of employees will be carried out smoothly， and the harm will not expand to a greater extent.
Sound insulation treatment of main engine room the key to sound insulation treatment of dry-type transformer room is to start from three levels: window， floating concrete floor damping pad and other sound insulation and noise reduction commodities to achieve sound insulation effect.
HelohovichThe insulation of the through core anchor bolt clamping the iron core is damaged silencing cylinder and apply sound insulation window， resulting in a short circuit fault between the silicon steel sheet of the iron core and the through core anchor bolt;
The method and whole process of taking oil sample of power transformer are as follows:
Condoa(IV) the transformer on the column shall be stable and firm，HelohovichPrice of 800kVA distribution transformer， and the waist rail shall be & phi; mm galvanized wire shall be wound over turns in an even number. The iron wire shall not have a connector and shall be tightened after winding. The distance between the waist rail and the energized part shall not be less than .m.
The voltage regulating tap changer is not in place or poor
& ldquo; YN， D & rdquo;， in which indicates that when the working voltage phasor of the primary side line， as the minute hand， refers to the position at o"clock， the phase voltage phasor of the secondary side is at o"clock. That is， the phase voltage UAB of the secondary side lags degrees behind the working voltage uab of the primary side line (or degrees ahead).
The electromagnetic coil is wound with copper power wire or foil and lifted with glass fiber. The epoxy adhesive does not need filling. The vacuum drying equipment is used for degassing and dehumidification. The overall concrete is poured with high fracture toughness， resistance to short-circuit faults， common faults and impact. The work is diligent.
The 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.
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?
TrustworthyWhen leaving the factory， the production and processing are not smooth and the sealing is poor. The common fault of oil leakage will be caused after the oil transformer is sealed for a period of time.
() 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，HelohovichDry type transformer procurement， 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.
Dry type transformer manufacturer
When the transformer is put into operation， if the tap changer is not in time， a great & ldquo; Tweet & rdquo; The high-voltage fuse is broken when the noise is serious; If the tap changer is defective， it will cause mild & ldquo; Squeak & rdquo; Corona discharge sound， once the load increases， it is likely to burn the circuit breaker of the tap changer. In case of such situation， the transformer shall be placed for h， and the rising seat and waterproof sleeve installed with vent plug shall be deflated on time.
Wiring mode of dry-type transformer:
Some are tied with plastic tape， and some immediately press the two edges together， because the socket can not be pressed firmly during installation， and there is still oil leakage without sealing effect.
