LV Series Switching Power Supply

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Q:What is the critical load of the economic operation of the transformer?
Transformer manufacturing and economic operation Transformer economic operation depends not only on the economic operation mode, but also depends on the transformer manufacturing level. According to the transformer often load can be divided into four cases: one is often at full load or close to full load operation of the transformer; the second is often running in most of the transformer; third is often running in a few half of the transformer; Load or no load operation of the transformer. The current factory factory transformer, the economic load factor is mostly 40 ~ 60% range, the above four types of load are not fully adapted, especially for full load or light load operation of the transformer loss rate is great. Therefore, the proposed production of four types of transformers, the economic load rates were 90%, 65%, 40%, 20%. Each unit can be based on the load of the transformer to select the appropriate economic load factor of the transformer. In this way, the power units of the transformer can run in the economic operation area, you can save a lot of active power and reactive power 5. 2 Transformer update and economic operation The purpose of the equipment update is simply not to eliminate its tangible wear, but also to eliminate its intangible wear. Only by constantly updating the way can we fundamentally reduce the equipment loss, improve efficiency, improve the technical backwardness. Update the transformer will inevitably bring active power and reactive power savings. But to increase investment, there is also a recovery period of the problem. Transformers are not damaged after the update, but aging to a certain extent, but also have a certain value when you can update. Transformer manufacturers of different types, different capacity of the transformer life are provided, generally 20 years. The use of units in accordance with the provisions of the years to extract depreciation equipment, and the transformer update
Q:Is the LTC transformer a regulated voltage transformer?
Is a voltage regulator. 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: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 + V output voltage 0 output midpoint
Q:2500KVA transformer rated current 3608A, how much can be overloaded current?
Ventilated good circumstances, you can temporarily overload 300A.
Q:How to use the experimental method to determine the transformer iron consumption and copper consumption
No-load test for iron loss; short-circuit test copper loss. I suggest you read the book, see the information.
Q:Can a transformer make a small voltage change?
Transformer is divided into two kinds! One is the booster, the other is the buck! It is by changing the transformer coil winding to determine the effect of its pressure!
Q:Is the transformer output DC or AC?
There is also a direct communication, depending on what is the use of what. For example: for power distribution with the step-down transformer input and output are AC; and electronic circuit transformer is a double winding or multi-winding transformer, mostly safety transformer, the output is DC; China's auto-transformer is AC transformer The Autotransformers are not allowed to be used as safety transformers. So the output for the exchange.
Q:Which transformers belong to special transformers
These special-purpose transformers are known as special transformers. Because of the working conditions and load conditions of these transformers, they can not be calculated by the general transformer calculation method.
Q:What is the role of the pebbles in the transformer base
Shandong Yi River Pebble Factory ---- Transformer dedicated pebble production suppliers.
Q:What are the ways of protecting the transformer?
Transformer protection is commonly used to protect the internal fault of the main protection of gas and differential. Backup protection is quick and overcurrent. There are semi-insulating structure of the neutral point over-voltage protection (arrester), oil temperature alarm.

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