Power Transformer 100kV

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1.Product description
Product description 110KV oil immersed on-load regulation power transformer has a seires of big changes in material, technical and construction with the characters of small size, light weight, high efficiency with low loss and low noise, stable opable operation which cutting down large number of loss from energy GRID and minising operation charge, improving the industrial economic benefit, it is used in power plant, transformer substation, big-sized and chemistry factory and etc. the product is according to national and IEC standards. installation:outdoor ambient temperature: -30˚C-+40˚C Altitude: 1000m relative humidity: 90%(25C)

Rated capacity (kVA)Voltage combination and tap range (kV)Vector groupS9 seriesS10 seriesNo-load current (%)Short-circuit inpedance (%)
HVLVNo-load lossload lossNo-load lossload loss

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Q:KW how to know how much transformer?
Know the number of KW, how to calculate how much transformer is needed. In general, our calculation is based on the nature of the equipment, the production process, the development prospects of the production enterprises to analyze the size of the transformer, some companies, how many kilowatts to choose the number of KVA, and some enterprises have all the equipment must boot Run, then, on the choice of a little bigger, the machinery industry enterprises, generally in accordance with the installed capacity of 4-5 fold to select the transformer capacity. For reference only.
Q:Transformer core
The core part of the transformer is composed of (primary coil) and (secondary coil), generally divided into two types of step-up transformer and step-down transformer. (In fact, there is not a step up and not buck the isolation transformer) Did not hear the transformer "what son".
Q:220V to 12V transformer L N + V + V on behalf of what? The more detailed the better! Thank you prawn
L FireWire N zero line The other two are output positive, and the output is negative
Q:1000KVA transformer power loss is how much
Transformer no-load plus stray loss is fixed, usually 6% of the total capacity, load loss that is copper loss, according to the load power, and power factor calculation
Q:The specific steps and procedures for installing the transformer
Oil-immersed or dry-type transformers are generally installed by the engineering team or factory installed do not know how much capacity your transformer is electronic or industrial power system
Q:What are the serious consequences of transformer circulation?
Two parallel transformer transformer ratio is not equal, the two transformers due to the same phase between the phase difference generated by the circulation, the size of the flow of two transformers to determine the size of the difference, according to the magnetic potential balance, although the two transformers Side of the same power supply, but due to the secondary side of the pressure cycle, two transformers will also produce a circulation at the same time.
Q:Does the production transformer require 3C certification? Does the country have any specific requirements?
In general, the production of power transformers do not require 3C certification. The state does not have specific requirements, but if you want to tender, is certainly qualified, the most important is: the state authority of the type of test report (often: National Transformer Quality Supervision and Testing Center (Shenyang)) and model registration Certificate, then ISO9001
Q:Transformer cooling method AN stands for what
The cooling mode of the transformer is determined by the cooling medium and the circulation method. Since the oil-immersed transformer is also divided into the internal cooling mode of the tank and the external cooling mode of the tank, the cooling mode of the oil-immersed transformer is represented by four letters.   The first letter: the cooling medium in contact with the winding. O -------- mineral oil or ignition of more than 300 ℃ of insulating liquid; K -------- Insulation liquid with ignition point greater than 300 ℃; L -------- ignition can not be measured insulation liquid;   The second letter: the way the internal cooling medium is circulated. N -------- The oil flow flowing through the cooling equipment and the windings is a natural thermal convection cycle; F -------- The oil flow in the cooling equipment is forced to circulate and the oil flow flowing through the windings is the thermal convection cycle; D -------- The oil flow in the cooling equipment is forced to circulate, at least in the main winding oil flow is forced to guide the cycle;   Third letter: external cooling medium. A -------- air; W -------- water;   The fourth letter: the way the external cooling medium is circulated. N -------- natural convection; F -------- Forced circulation (fan, pump, etc.).   Therefore, the transformer cooling method AN represents the air convection cooling method.
Q:What is the SN on the transformer? What is the difference between it and the actual power of the transformer?
SN is the rated capacity of the transformer, the capacity is also called the apparent power. It represents the maximum power that the transformer can transmit in the rated state, that is, the maximum power that the transformer can transmit when the power factor is 1 is SN kW. Transformers are only used to transmit power, in addition to their own no-load loss and load loss, the power does not consume. The actual power it delivers depends on the load. Transformer: Transformer (Transformer) is the use of electromagnetic induction principle to change the AC voltage of the device, the main components are primary coil, secondary coil and core (core). In electrical equipment and wireless circuits, commonly used as lifting voltage, matching impedance, safety isolation and so on. The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulator (magnetic saturation transformer) and so on. According to the use can be divided into: distribution transformers, power transformers, sealed transformers, modular transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric transformers, rectifier transformers.
Q:Transformer Lightning
Transformer by lightning over-voltage damage, usually the primary coil over-voltage burned one is short-circuit two open. Most of which is caused by the line called the induction mine (lightning) instantaneous damage, the shell (surface) no burn traces. Unless it is just in the transformer over the formation of direct lightning damage effect.       Transformer lightning is the most vulnerable to the transformer insulation problem, in fact, the structure of the transformer, insulation is a particularly important assessment factor. Transformer insulation damage, the other performance will be affected, including: three-phase voltage is not balanced, no load and load test pass. Detection method is usually: first with a shake table measured insulation resistance, in the measurement of the winding resistance, and finally can be hanging core to do no load test. You can gradually know what part of the lightning damage!

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