The sampling container is a colorless glass bottle with a wide mouth ground glass plug with a volume of .kg or kg. - bottles shall be collected at a time for analysis and experiment. Labels shall be attached during sampling. Pay attention to the name, source, sampling date, sampling person, weather conditions and other materials of the oil sample.In the whole process of transmitting electromagnetic energy in the power supply system, it will inevitably cause the loss of voltage and output power. When transporting the same output power, the voltage loss is inversely proportional to the voltage, and the output power loss is inversely proportional to the square meter of voltage. The transformer is used to increase the voltage and reduce the closing damage.Seskatrebova,Power saving analysis of transformerThe first step of the whole wave process calculation is to calculate the basic parameters of the Internet such as inductance, capacitance and resistor. The accuracy of those basic parameters does great harm to the calculation results of the whole wave process. For the inductance calculation, the good model is the solid model of infinite transformer core column, but there are many calculation methods.Keling,& ldquo; YN, 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,SeskatrebovaBidding information of power transformer, the phase voltage phasor of the secondary side is at o'clock. That is,SeskatrebovaApplication scope of oil immersed transformer, the phase voltage UAB of the secondary side lags degrees behind the working voltage uab of the primary side line (or degrees ahead).Falling foreign matters and piercingThe scientific research of power transformer oil is generally carried out according to the way of sampling. What are the common sampling methods and processes?

For no-load impulse closing of transformer, pay attention to the following matters:After the power transformer has been used for a long time, the electromagnetic induced noise oscillation may be transmitted from the townhouse to the building structure. The core of noise reduction solution must be changed to copper wire connection.Installation materials and the manufacturer will assign professional technicians for inspection. The main reasons are as follows:The vibration reduction of collecting and townhouse solves the soft connection of collecting and townhouse. For the copper bar of the low-voltage bus of the equipment,Careless maintenance and insulation damageThe vibration reduction solution of cable bridge is to modify the hard connection between bus bridge and dry-type transformer, and the vibration reduction solution is made at the cable bridge.The 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 vibration reduction solution of cable bridge is to modify the hard connection between bus bridge and dry-type transformer, and the vibration reduction solution is made at the cable bridge.Installation worksWhat about oil immersed transformer fire?Transformer inspection earOperation of oil immersed transformerSeskatrebova,After tightening the loose bolts, seal the flange, and solve the bolts that are likely to leak, so as to achieve the goal of complete treatment. Tighten the loose bolts strictly according to the actual operation and processing technology.Oil immersed transformer operationThe scientific research of power transformer oil is generally carried out according to the way of sampling. What are the common sampling methods and processes?