-
Anonymous users2024-02-15Insulating varnish is about ten or twenty yuan per kilogram, and there are dozens of expensive ones. Impregnating paint, impregnating paint is divided into two categories: solvent paint and solvent-free paint, which is mainly used to impregnate the coils of motors and electrical appliances to fill their gaps and micropores, and after curing, it can form a continuous and flat paint film on the surface of the impregnated object, and make it bond into a hard whole. The basic requirements for impregnating lacquer are:
1. Low viscosity, good fluidity, high solid content, easy to penetrate and fill the impregnated substance. 2. Fast curing, good drying performance, strong adhesion, thermoelasticity, and can withstand the centrifugal force when the motor rotates after curing. 3. It has excellent electrical properties and chemical stability, moisture resistance, heat resistance and oil resistance.
4. Good compatibility with conductors and other materials. How to determine the strength and qualification of insulating paint manufacturers? It can be done through the following....
-
Anonymous users2024-02-14Preferred by Kelvionha's transformer cooling systems offer the highest reliability and efficiency. Moreover, the use of double-pipe technology is safe to operate and environmentally friendly.
-
Anonymous users2024-02-13There are cold toilets, please recommend, the key is how big the transformer you use and how much load, you can only buy a transformer after calculating, there are many kinds of oil toilets, I have time to get 20 kilowatts, 30 kilowatts, 40 kilowatts, 220 of 380, keep pushing up, many don't know how much capacity you need, let's talk about it after the calculation.
-
Anonymous users2024-02-12The no-load loss of the oil-immersed transformer is smaller, and the load loss of the dry-type transformer is smaller.
Taking the provisions of JB3837-2010 "Method for Compiling Transformer Product Models" as an example, the no-load loss of S10 type 10 oil-immersed distribution transformer: 1880W, load loss 14500W (75).
Total loss: 16380W
The no-load loss of SCB10 type 10 oil-immersed distribution transformer: 2450W, load loss 11730W(120).
Total loss: 14180W
-
Anonymous users2024-02-11Not good. This oil should be gear oil, which is used for gear lubrication, not cooling. And transformer oil may be more expensive than gear oil.
-
Anonymous users2024-02-10800kva voltage 6000 400 oil-cooled transformer, rated current high voltage side is, low voltage side is.
It is calculated as: apparent power (VA) voltage (V).
-
Anonymous users2024-02-09Rated current = rated capacity Rated voltage
-
Anonymous users2024-02-08Input 6mA is not enough and may require more than 10A. High-voltage and high-power high-frequency transformers are not easy to do, it is best to use a TV high-voltage package with a core of that shape, and the high-voltage winding must be wound with a slotted skeleton to minimize the distributed capacitance. The most troublesome thing about this kind of transformer is that if you are not careful, the capacitance will be too large, resulting in the frequency not going up.
So it may be only at the expense of core volume and length. The 130W transformer does not need a large core, and it is necessary to have both high voltage and high frequency, so it is inevitable to use a larger and longer core.
-
Anonymous users2024-02-07,Boost ratio:10kv,so 70%,,output power<<<130w; Impossible to do.
There are two ways to regulate the voltage of dry-type transformer: one is on-load voltage regulation, which is relatively simple, and directly adjusts its control switch. The second is non-excitation voltage regulation, dry-type transformer non-excitation voltage regulation is through the adjustment of the transformer itself, and there are two kinds of arrangement of the connecting piece, there are two rows up and down, three contacts above, three contacts below, and the other is arranged left and right, three on the left and right. >>>More
Transformer oil is a kind of mineral oil obtained by distillation and refining in natural petroleum, and is a mixture of liquid natural hydrocarbons with pure and stable, low viscosity, good insulation and good cooling by acid and alkali refining of the lubricating oil fraction in petroleum. Commonly known as square shed oil, light yellow transparent liquid, relative density. Freezing point <-45, specific heat capacity of about Kak*degree) is mainly composed of three hydrocarbons, the main components are naphthenic hydrocarbons (about 80%), and the others are aromatic hydrocarbons and alkanes. >>>More
The high-voltage cabinet should be lightning protected and the low-voltage should be grounded.
Friend, you have confused the rated capacity of the transformer with the capacity of the test transformer. The rated capacity of the transformer refers to the ability of the transformer to run with load, and the capacity of the test transformer is only related to the test load, that is, the capacity of the test transformer and the test console are matched, just like the text description of the annex, because the test console has limited current resistance, ball gap and other protection measures, and the output of the test transformer will be cut off if the protection setting value of the test console is exceeded, so as to protect the transformer and the console from destruction. At the same time, it prevents unnecessary damage to the DUT due to excessive test current.
1.The dry-type transformer thermostat is not displayed Fault cause: The thermostat power supply is not connected; The fuse blows. Solution: Turn on the power supply; Replace the fuse.