Seal oil leakage
After the test，zos Scb10 dry type transformer， connect the data signal contact of the automobile relay with the alarm circuit， the pull-in contact with the opening circuit， and adjust the overcurrent protection value.
zos Power transformer is indispensable for power stations and substations but we must pay attention to many problems in the whole process of applying power transformer.
When sampling from a small and medium-sized power transformer without a discharge pipe (or oil sample suspension plate)， it can be in a power transformer such as a glass test tube when it is not in operation to extract the oil sample at the bottom， or it can be replaced by changing the oil.
EsmeraldaOperation and maintenance management of oil immersed 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 ℃ drying oven. After refrigeration，zos Power three-phase transformer， the bottle cap shall be tightly closed and cannot be opened before application.
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.
What is the wiring mode of dry-type transformer?
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.
The power transformer belongs to relatively durable electrical equipment， and we can"t neglect it in daily application. The common problems of power transformer conductor，zos How to select power transformer， power transformer winding and power transformer tapping power switch are analyzed below:
Recommendation and consultationThe time difference between different steps of three-phase power switch of switching power supply shall be less than ms， the closing shall be maintained by high-voltage arrester， and the neutral line of transformer shall be reliably grounded (it shall be grounded immediately).
The hanging core of dry-type transformer is a vital part
(III) dry type transformers of KVA and below can be installed on poles. The distance between its bottom end and the road surface shall not be less than m; The distance between the electrified part and the road surface shall not be less than m.
On load commissioning:
Welcome to inquireIf 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.
Step up process of dry-type transformer?
Oil leakage of bolt or pipe external thread
zos Careless maintenance and insulation damage
When the screw of the through core extruder holding the iron core of the transformer is loose， or small metal materials fall into the transformer， the transformer will send out & ldquo; Ding Ding Dang & rdquo; Or & ldquo; Call & hellip; Call & hellip& rdquo; Blowing sound and its & ldquo; Squeak， squeak & rdquo; It"s like a magnet sucking a small washer， while the working voltage， current and temperature of the transformer are all normal. Such conditions generally do not endanger all normal operation of the transformer， and can be solved until power failure.
For example， in the s， the radio programs applied by every family in the countryside had a ground wire， and they were often wet with tap water. Protective grounding is to bury the copper plate of metal electrical conductor in the soil layer， which completes the grounding protection. The grounding wire specifies the grounding wire resistance ≤ Ω. Grounding protection is a safeguard measure adopted to avoid safety accidents when using household appliances， office and other electrical equipment.