SVC Automatic Voltage Stabilizer

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Product Description:

SVC automatic voltage stabilizer consists of contact voltage regulator,sampling control cir-cuit and servomotor as well.It has excellent features,such as small waveform distortion,highefficiency,high power factor,free from the effect or frequency variation of supply.It can bewidely used in most situations where the voltage stabilization is required.
2. Specification

Input voltage150V-250V
Output voltage220V±3%, 110V±3%
Response time<1sec.(against 10% input voltage deviation)
Ambient temperature-10oC~±40oC
Relative humidity<90%
Waveform distortionNon-lack fidelity waveform
Power factor cos∮0.8
Insutalion resistance>5MΩ

3. Outline and packing

SVC-5000VA283046191PC (Cabinet)
SVC-10000VA443256311PC (Cabinet)

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Q:220 kv transformer capacity range,
I have seen the 220kV power transformer minimum 63MVA, the largest 250MVA, there is no such specification is not clear, it is estimated that small and small is not where to go, and then big is not where to go for reference The
Q:Transformer tap adjustment there are several ways? What are the advantages and disadvantages?
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). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulator (magnetic saturation transformer) and so on. According to the purpose can be divided into: power transformers and special transformers (electric furnace change, rectifier, frequency test transformer, voltage regulator, mine transformer, audio transformers, IF transformers, high-frequency transformers, impact transformers, instrument transformers, electronic transformers , Reactors, transformers, etc.). Circuit symbols commonly used as the beginning of the number. Example: T01, T201 and so on.
Q:What is the meaning of the transformer capacity unit KVA?
KV.A is the capacity in the transformer KVA for apparent power, its size and power factor! For example: power factor cosΦ = 0.8 active power P = 1Kw Then tgΦ = 0.75, so the square of the apparent power S = the square of P + the square of P * tgΦ When the power factor is 1, 1KVA = 1KW
Q:What is the unit of the transformer?
Power transformer capacity unit with KVA, that is, as the power. Most of the power load is inductive load, its apparent power is equal to the sum of active power and reactive power vector. Therefore, the apparent power of the inductive load is greater than the active power. If the active power transformer, the apparent power of the inductive load is greater than the power transformer capacity, the load current to exceed the allowable value of the transformer, so the inductive load must use the apparent power transformer. If the transformer load is all the resistance load, the total power can be equal to the transformer KVA value.
Q:What is the meaning of the Y D11 on the transformer?
Yn d11 said: high side is a star-shaped wiring with a neutral point of the lead-out, low-side side of the triangle wiring. Using 11-point connection, that is, high-voltage side of the line voltage ahead of the low voltage side line voltage of 30 degrees.
Q:Will the 250KVA, 500KVA, 630KVA Van transformer size,
Box transformer inside the configuration is not the same, the size will be different, which factory production size is not the same
Q:Two different impedance of the transformer, parallel load how to allocate?
When the impedance voltage is equal, the transformer runs side by side: Because the transformer load distribution is proportional to its rated capacity, and inversely proportional to the impedance voltage. In other words, when the transformer is running in parallel, if the impedance voltage is different, the load is not proportional to the rated capacity of the distribution, parallel transformer current and impedance voltage is inversely proportional to the II / III = UZKII / UZKII or UZKIIII = UZKIIIII, Set two transformers running side by side, the capacity of SNI, SNII, impedance voltage UZI, UZII, then the load of each transformer according to the following formula: SI = [(SNI + SNII) / (SNI / UZKI + SNII / UZKII)] * (SNI / UZKI) SII = [(SNI + SNII) / (SNI / UZKI + SNII / UZKII)] * (SNII / UZKII) That is, S △ I / SII = (SNI * UZKII) / (SNII * UZKI) According to the above analysis we can see: When two transformers with different impedance voltage are running side by side, the distribution load with large impedance voltage is small. When this transformer is full load, another transformer with small impedance voltage will run over load. Transformer long-term overload operation is not allowed, therefore, only the impedance of the transformer voltage overload operation, thus limiting the total output power, energy loss also increased, it can not guarantee the economic operation of the transformer. Therefore, in order to avoid the impedance voltage difference is too large, so that the parallel transformer load current distribution is uneven, affecting the transformer capacity can not be fully played, the specified impedance voltage can not be a difference of 10%.
Q:What is the difference between transformer MVA and KVA?
They are megawatts and kVA Unit (power in the power of S units) Megawatts 1 MVA = 1 thousand KVA Megawatt and kVA KVA = 1000W, trillion volts = 10 of the 6th power W
Q:110kv level, the capacity of about 43MVA transformer models and detailed parameters
SSZ10-50000 / 110 ONAN YN, yno, d11 110 ± 8 × 1.25% / 38.5 ± 2 × 2.5% / 10.5 Rated current (A) High pressure side 262.4 / Medium pressure side 749.8 / Low pressure side 2749.3 The following are the same as the " No load loss 35.3kw The following are the same as the " No-load current 0.09% The following are the same as the " Short circuit loss (kW) High - Medium 200.8, High - Low 202, Medium - Low 157 The following are the same as the " Short Circuit Impedance (%) High - Medium 10.06, High - Low 17.78, Medium - Low 6.35.
Q:My device has 50KW should be used with much transformer
You can go to the factory to help you under the selection. My company last year in Shanghai elegant power equipment Manufacturing Co., Ltd. to buy several, good quality, good service, you can go to his home under the consultation.

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