Careless maintenance and insulation damage
kV and above & plusmn; No load of rated voltage; Part of the circuit breaker of the tap power switch is installed in the phenolic resin insulating paper cylinder，LakshmParameters of oil immersed transformer，LakshmAbout transformer， and the insulating paper cylinder is installed on the wooden frame. The actual operation rocker is connected with the dynamic circuit breaker of the tap power switch according to the wooden insulating rod. The on load tap off power switch is insulated from the ground by the insulating paper cylinder of the power switch itself and the insulating limit.
LakshmIn fact， apart from the application of the Finance Bureau， the industry has been trying to formulate and upgrade transformer commodities according to the specifications，LakshmOil immersed amorphous alloy transformer， so as to promote the improvement of energy consumption level of transformer commodities.
On load commissioning:
ColonnavaHigh voltage fuse of transformer breaks one phase;
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 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.
Avoid the load operation of power transformer: if the load operation is long-term， it will lead to the scalding of solenoid coil， slow aging of insulation， short circuit fault between boxes， safety factor grounding device can be divided into grounding protection anti electric shock grounding device and anti electromagnetic wave radiation grounding device. Protective grounding is to use it for loop to make the facilities achieve the grounding wire specified by the function.
Step up process of dry-type transformer?
Deterioration damage of transformer core insulation
Click to viewThe 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 power transformer is designed according to the temperature protection scheme. The embedded parts in the material layer of high (low) pressure electromagnetic coil poured with integral concrete are provided with longitudinal ventilation duct， which can be equipped with air-cooled machinery and equipment (cooling centrifugal fan). After selecting air-cooled machinery and equipment， the output capacity can be increased by %.
Outdoor sampling shall be carried out in sunny days or dry weather with low environmental humidity. During sampling， it is necessary to resolutely prevent the invasion of dirt such as rain， snow， wind and sand.
The 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.
OK or not?Difference between dry-type transformer and oil immersed transformer:
This is the example of power consumption engineering as power saving. The key reason is that the habitual calculation method ignores the copper loss.
The capacity and working voltage are different. The dry-type transformer is generally suitable for distribution equipment. The capacity is generally below kVA and the working voltage is below KV， which also ensures the rated voltage of kV; Oil immersed transformers are generally suitable for distribution equipment.
LakshmFault judgment of power transformer
The hanging core of dry-type transformer is a vital part
A specific part of dry-type transformer is the hanging core of dry-type transformer. The hanging core of dry-type transformer is a vital component. How to carry out the hanging core?