Why do electric transformers explode?

60 ms is fast. But sometimes, it's not fast enough. This is the key point of Cassie Rodenberg 's Popular Mechanics' excellent interpretation that answers the question 'Why does the transformer explode?'

A huge robot to become a truck will explode from time to time, but in this case we are talking about a cylindrical box that you think is attached to a pole. To understand their work, you need to understand the basics of the grid.

The easiest way I found was to shoot a grid like a river flowing in a water park. That's because we are not talking about just a bunch of wires. The grid is a circuit like a flowing river. Electricity must flow from the power plant to the customer before returning to the power station. And, like a flowing river, the grid needs to operate within a certain range. Power needs to travel at a constant speed (just like the technician calls it) and constant depth (as well as voltage). This is the appearance of a transformer.

It is easiest to shoot with one circuit, but the grid actually consists of many interconnected redundant circuits. Those circuits are not all at the same voltage

Imagine several different rivers in the water park - one for very shallow children and the other for deeper. What would you do if you wanted to place the inner tube directly in another tube? To do this, slowly advance to a deeper channel. Then you can go from a shallow river to a deep river without leaving water

However, if there is too much power, there is a possibility that the transformer may explode due to a sudden surge. When the transformer detects energy spikes, they are programmed to turn off, but it can take up to 60 ms to turn off. No matter how fast these milliseconds look, it is still too late to prevent electrical overload.

The chamber filled with a few gallons of mineral oil keeps the circuit cold, but due to the large amount of electricity, the circuit can fry and melt, ignite the sparks and can not burn the mineral oil. As a result, the mineral oil burns explosively and the sickle of the transformer fires into the air.

All you need is a trigger, corroded wire, or bad wire alone, the circuit surge will exceed the circuit breaker.

This interpreter has come from 2010, but after Hurricane Sandy I explain the same content as I saw in the Transformers current video that began in New York.

When returning to the analogy of the lazy river, it may overflow if a sudden flow of water flows into the waterway. When this happens on the grid, you get an explosion transformer

In one such case in San Francisco, the power transformer in the basement of the building exploded and toxic liquid refrigerant was released. Computers in the building continue to operate, but the fire department does not allow anyone to enter the building and make the computer easier to use, so the information will be unusable. ¿ The main purpose of Internet security is to protect the confidentiality of proprietary information, maintain its integrity, and maintain its availability for those who access it. When an unauthorized person accesses and checks information, it is no longer confidential. By connecting to the Internet, organizations make their information assets more vulnerable to unauthorized access and breach of confidentiality rules. When data is altered, altered, or destroyed by an intruder, the integrity of the information is lost.

Fire at Old Dhaka is very common and has catastrophic effects. One of the biggest disasters in the city recently occurred in 2010 when the power transformer exploded. With the help of nearby chemicals, flammable substances, and dense shops and homes, the fire illuminated several buildings and 126 people died in three hours. The fire department is a 15 minute walk from the fire department, but due to the compact density of the narrow driveway and Dhaka Old Town, the fire engine took more than an hour to reach the flame.

In most cases, the fire at the power plant is a catastrophic, irritating, catastrophic event. Transformer fire - whether it is a large equipment in the center of the main switchgear or a small distribution center serving the home or business - is particularly annoying. Fire fighters in areas where fire, explosion, high voltage arc, firing and diffusion of oil, how to cope with the fire of the electric opening / closing device are not known may be injured or died. Transformer fire is not the scale of nuclear accident at Fukushima that hit Japan in March 2011, but it occurs more frequently and more frequently. They are a nightmare for electrical system operators.