Voga VogaOperation and maintenance of dry type transformerThe development of the industrial market will tend to grow steadily

Common problems of tap changer of power transformer

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, the maintenance work of employees will be carried out smoothly disconnect the switching power supply at the fault point, and the harm will not expand to a greater extent.

Voga Voga.Precautions for trial operation of power transformer manufacturers

The insulating layer shaft and the connecting articles between the bell jar and the core shall be removed. If it is a hanging bell inspection, the oil shall be pumped into the bottom of the bell jar before the bell jar can be removed.

.Method and process of taking oil sample of power transformer

The manufacturing process of dry-type transformer is very process, and must be technically as a certain pillar. Only in that way,Voga VogaPrinciple of oil immersed power transformer, the performance of dry-type transformer will be more stable. What are the common manufacturing processes and steps of dry-type transformer?

What is the wiring mode of dry-type transformer?

Loose core screw

At rated power,Voga VogaBox type transformer, the ratio of output power to input power of transformer is called the efficiency of transformer, i.e. & ETA; Is the efficiency of the transformer; P1 is the input power and P2 is the output power.

The long-term overload of power transformer will slowly cause the scalding and insulation aging of solenoid coil, resulting in short circuit between coils, two-color short circuit or short circuit on the ground, resulting in the ignition of power transformer. Therefore, the insulation compressive strength of power transformer shall be tested before installation and operation, and overload is not allowed in the whole process of operation.

property right.The switching power supply lacks one phase of power;

During no-load test run, the transformer shall be connected with the working voltage from the switching power supply side,Voga VogaOil immersed transformer oil storage tank, and then make the working voltage impulse closing.

What is the wavelength of oil immersed transformer?

In terms of the place of use, dry-type transformers are mostly used in & ldquo; Fireproof and explosion-proof type & rdquo; It is easy to use in large and medium-sized engineering buildings and multi-storey buildings; The oil immersed transformer because of & ldquo; Accident & rdquo; There is likely to be oil or leakage after fire and most application places leading to fire accidents are easy to choose in large and medium-sized engineering buildings and multi-storey buildings;

target.(5) 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.

How to maintain dry-type transformer?

Before application, the sampling container shall be cleaned with vehicle gasoline, soapy water or other organic solvents (such as trisodium phosphate) except oil stains, 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 105 ℃ drying oven. After refrigeration, the actual operation of the oil immersed transformer shall be undertaken by the on-site operation and maintenance management staff. Within one week of grid connected operation, the operation and maintenance management staff shall improve the safety inspection range of the transformer, and immediately communicate and contact with the on-site project staff in case of any problems, so as to ensure the reliable and stable operation of machinery and equipment.

Wiring mode of dry-type transformer: