RosarioThree phase oil immersed regulatorDevelopment Course

The voltage regulating tap changer is not in place or poor

If the power transformer stops running for more than 72h (if the allowable time should be reduced when the ambient humidity is & amp; gt; 95%), it should be insulated before putting into use, and accurately measured with a 2500V grounding megger. The insulation resistance from the primary side to the secondary side and the ground should be ^ 300mfl, the insulation resistance from the secondary side to the ground should be ^ 100mh, and the insulation resistance from the iron core to the ground should be & amp; gt; 5mfl (note that the grounding device piece should be removed).

Rosario.How is the quality level of dry-type transformer compared with foreign countries?

In order to better carry out the experiment of power transformer oil, and the oil sample for simplified experiment shall not be less than 1kg.

.The hanging core of dry-type transformer is a vital part

The raw materials of Fushi blue can be used for bonding, so that the overall oil leakage of the connector can be greatly controlled; If the actual operation is convenient, the metal shell can also be bonded at the same time to achieve the purpose of leakage treatment.

It includes the performance and main uses of insulating layer materials, various insulating layer parts, component manufacturing processes and quality standards; Performance and main uses of various wires, coil inductance process of various ways of electromagnetic coil, solution process and quality standard, overall suit process and quality standard of electromagnetic coil; Main performance parameters of ferrite core, cutting process of iron chip, core stacking process and quality standard, production process and quality standard of electromagnetic shielding.

The switching power supply lacks one phase of power;

What is the cause of power transformer core failure?

Some are tied with plastic tape, and some immediately press the two edges together, which can control the oscillation below 0.2% and there is still oil leakage without sealing effect.

Safety production.Protective measures for damping of dry-type transformer

Dry type transformer oscillation is solved by applying vibration damping platform to dry-type transformer and carrying out low-frequency vibration reduction management, and then reduce the building structure noise transmitted by dry-type transformer oscillation.

Before no-load impact closing, the pose period of overcurrent protection shall be set to zero, and the data signal circuit of steam vehicle relay shall be temporarily connected to the pull-in circuit.

Therefore, in the installation process of substation equipment the lightning rod should be set according to the specific situation to prevent damage to the relay protection dry-type transformer caused by lightning. In addition, in the installation and use process of lightning rod, select reasonable types of lightning rod according to the operation situation to determine that they are in the same situation. In addition,Rosario4000kva power transformer, during the installation of lightning rod, please connect all routes as far as possible to prevent other faults.

property right.The tail end of the high-voltage winding head and the middle tap are made of copper inserts and embedded parts,RosarioBox transformer recycler, with good strength and stiffness, which is conducive to adjusting the data and has a unique and neat style.

Transformer

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?

Rosario.For the leakage that has already occurred, find the leakage point first, which can not be ignored. For the position with serious leakage,RosarioSpot inspection standard for dry type transformer, shovel or sharp punch can be selected. The leakage point can be riveted with special tools for metal materials. After manipulating the leakage, the treatment surface shall be cleaned and tidy. Polymer composite materials are mostly selected for dry consolidation. After dry consolidation, the goal of long-term treatment of leakage can be achieved.

When using the oil sample of the power transformer in operation, if the second phase is blocked and then take the oil sample.

When the transformer is out of phase, there is still no sound when the second phase is sent, and there is sound when the third phase is sent; If the third phase is blocked, the sound will not change, as in the case of the second phase. There are three reasons for phase deficiency: