SZ9-1600-20000/33KV Three Phase Oil Immersed On-load Tap Power Transformer

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SZ9-1600-20000/33KV three phase oil immersed on-load tap power transformer is suitable for distribution syatem with 35KV,50HZ electyric power circuit.it confirms to GB1094<power transformer>standard.

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Q:2500KVA transformer bearing current how much calculation
According to P = 1.732UI, you can calculate the rated current on each side of the transformer. But the transformer in a short time usually have a certain overload capacity, so the current overload will be greater than the rated value.
Q:Three - winding transformer winding problem
2, from the manufacturing cost considerations, the transformer core is grounded. Low voltage coil inside, the coil on the core of the insulation distance can be smaller. So that the sum of the main insulation dimensions of the three coils will be smaller. The weight of the entire transformer, the volume is relatively lower than the - low - high arrangement to be smaller.
Q:Transformer turns around the number and how much V is calculated
3, seeking wire diameter What is the current required to output 8 volts? Here I assume 2 am. Transformer output capacity = 8 ╳ 2 = 16 volt Transformer input capacity = transformer output capacity / 0.8 = 20 VA Primary coil current I1 = 20/220 = 0.09A Wire diameter d = 0.8√I Primary coil wire diameter d1 = 0.8√I1 = 0.8√0.09 = 0.24 mm Secondary coil wire diameter d2 = 0.8√I2 = 0.8√2 = 1.13 mm The voltage after the bridge rectifier capacitor is 1.4 times the secondary voltage of the original 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). 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.).
Q:How to increase the transformer output current
If the transformer is not in the case of overload, then increase the load, multi-access electrical equipment, it increases the output current. Otherwise it is not safe. If you do not change the structure of the transformer, do not change its specified cooling method (such as air-cooled, water-cooled), does not change its specified ambient temperature, then its rated current can not be changed.
Q:Who knows the density of the transformer oil is how much?
Temperature at 20 ° C: Normal value typical 25 # transformer oil: 895kg / m3 877.6kg / m3 45 # transformer oil: 895kg / m3 879.0kg / m3
Q:How to use transformer 10 in DC circuit
DC circuit using the transformer, first of all to DC into AC (switch conversion), that is, with switching power supply. For switching power supplies, it is recommended to purchase finished DC-DC modules. Select the appropriate DC-DC module according to the required voltage and current.
Q:Single bus sub-section for power distribution, transformer with a prepared and dual-use how to understand
One with one: single bus segment switch closed, only one transformer power supply, another standby. Dual use: single bus section switch off, two transformers were powered. Added: Single bus segment wiring form, it is a single bus with sub-section breaker into several sections. Increased reliability and flexibility compared to single-bus non-segmentation. Advantages: 1, two bus segments can be split operation, can also run side by side; 2, important users can be connected to a different dual-circuit busbars, to ensure uninterrupted power supply; 3, any bus or disconnector overhaul, only stop the paragraph, the remaining sections can continue to power, reducing the power outage range.
Q:How do you choose the public transformer capacity?
800X8 = 6400KW 6400KWX0.5 (use factor) = 3200KW + 50KW mall = 32500KW (full load operation) Choose three sets of 1000KVA transformer ,, 3000 (KVA) X0.9 (functional factors) = 2700KW · · · · · · · · · · · · · · · · · · · · · · · · · 315KVA transformer for 670 is too small ,,, 670X8 = 5360KW, 5360X0.5 = 2680KW 2680KW / 0.9 = 2977KVA Choose three sets of 1000 phase change
Q:1000KVA transformer no-load loss is how much?
Transformer no-load loss is not the same, not only the manufacturers are not the same, is a manufacturer at the same time manufacturing two transformers, may be no load loss will not be exactly the same; Different types of transformer no-load loss is not the same, the larger the model, the smaller the no-load loss, such as S9 than the S7 no-load loss is small.
Q:What is an isolated ring transformer?
Isolated ring-type transformer is mainly focused on its insulation performance, between the primary and secondary must have a double insulation, so that the isolation of its own high efficiency, effective protection of equipment safety.

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