The common dry-type transformer is an important electrical equipment， and the voltage is constantly regulated. However， because of certain necessity， the dry-type transformer will also boost voltage， and the whole process of boosting voltage is very complex， and there are many principles.
8After the power transformer has been used for a long time，power transformer price 1000kva common faults of iron core will occur. Dont worry. Contact the transformer manufacturer，NeratovicUnit price of scb11 dry type transformerWhat are the key reasons for harming applications and the manufacturer will assign professional technicians for inspection. The main reasons are as follows:
nDe wurkrafnad rabemBefore 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.
Dry type transformer， a static electrical equipment， is used to change the AC current (current) of a certain standard value into another or several types of working voltage (current) with the same frequency and different standard values. According to the supervision sampling inspection data released by AQSIQ in the third quarter of last year， among the kinds of dry-type transformer commodities produced and manufactured by companies in provinces and municipal districts across the country， with a compliance rate of %& ldquo; This result mostly shows the quality level of Chinas dry-type transformer industry at the present stage.
KTalimelDry type transformer is a common electrical equipment， which can be used to convert the alternating voltage of one standard value into another standard value of the same frequency. The step-up dry-type transformer is used to convert the low-grade alternating voltage into another high-grade alternating voltage of the same frequency. It is widely used in high-frequency industries， such as variable frequency power supply.
GsThe fundamental reason for this kind of inaccuracy is that when the transformer & ldquo; Dalar trolley & rdquo; is considered according to the size of capacity utilization rate，power transformer price 1000kva the high-capacity transformer must be replaced by the small-capacity transformer with high utilization rate， and then the iron loss is considered and the copper loss is ignored. In fact， for a certain load， the active power loss of small capacity exceeds that of large capacity The active power loss of the transformer， so it consumes electromagnetic energy.
Precautions for trial operation of power transformer manufacturers
The specific contents include eliminating the shortcomings found in the patrol inspection， cleaning the porcelain waterproof casing， removing and replacing the cracked or brittle leather pad， checking and tightening the nodes， replenishing the oil with less oil， etc.
aWith the rapid development of society and the continuous development trend of computers，power transformer price 1000kva the calculation of data in the whole process of oil immersed transformer wave has long had results. Only effective selection of calculation entity models and methods is needed， the accuracy of calculation conclusions can meet the needs of architectural design，NeratovicUnit price of scb11 dry type transformerWhat are the key reasons for harming applications and scientific and reasonable data method is selected， Not only can the current distribution of the oil immersed transformer be clearly defined in the development stage， but also the winding and other structures of the oil immersed transformer can be effectively arranged and distributed in a certain scope， which greatly facilitates the design scheme of the oil immersed transformer and ensures the stability of operation.
POnce the insulation material of electrical equipment is overheated the surrounding gas will cause a kind of odor. This kind of odor can be sniffed out by normal patrol staff. When you smell such odor during normal inspection， you should carefully inspect the equipment and parts with overtemperature until you find out the cause.
QEconomic managementAccording to statistics， to occupy the main global technical position， the transformer industry depends on two key data， commodity volume and voltage level. As early as & ldquo; Eleventh Five Year Plan; In the early stage，Power transformer price: 1000KVA, 33kV power transformer, 25kV power transformer, power transformer, oil immersed transformer, dry-type transformer factory China has been a powerful country in the production manufacturing and application of dry-type transformers all over the world， but it is not a big country.
qZThe transformer manufacturer said that the selection should be based on the application environment of the dry-type transformer. For the extremely extreme environment， the dry-type transformer should be poured with epoxy resin glue. Because this kind of environment does not need to heat the dry-type transformer， it can operate immediately. However， for the general application environment， the class H dry-type transformer can be used.
Principle of step-up dry-type transformer: the step-up dry-type transformer is a component that correspondingly converts low communication AC voltage， large current flow and small characteristic impedance into high communication AC voltage， small current and large characteristic impedance. When there is an AC circuit in the original coil， the communication AC magnetic flux will be caused in the transformer core (or magnetic core)， causing the magnetic induction voltage in the primary coil (or current).
The cycle time of power-off cleaning and inspection shall be determined according to the surrounding environment and load conditions， generally from half a year to once a year;
howwProtection mode for type selection of dry-type test transformer
DThe 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.
According to the introduction of transformer manufacturers， the capacity utilization rate is only about %， the utilization rate is close After replacing one kva small transformer， but the main parameters of the two transformers are evaluated as shown in Table . Table evaluates the main parameters of the transformer: capacity (VA) iron loss (W) copper loss (W). Firstly， the output power is saved according to the customary calculation method (ignoring copper loss): the results show that the loss of large capacity transformer is lower than that of small capacity transformer， its output voltage is directly proportional to the coil turn ratio of the output input solenoid coil. If a rechargeable battery is used， because it is DC， add a circuit in the input power supply circuit to change it into a continuously changing voltage. In that way， the alternating DC current can be obtained at the output end.