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the circuit board
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∙ 13y ago
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When thunder is falling on substation who it is automatically off?
When a thunder falls on a sub station, immediately a high voltage is produced in the bus bars connected to the substations. This high voltage is sensed by the relays & they send signals to circuit breakers, due to automatic system circuit breakers they are opened immediately. After clearing the faults the breakers closes automatically. so that sub stations are free of damages.
Which are the best electronic circuit breakers?
The best electronic circuit breakers are possibly Square D. Make sure that you specify the sub type, which should be QO and not Homeline or any other type.
Why AC is converted into DC in Sub station?
Most Sub-Stations are equipped with station batteries (DC) which is actually multiple batteries connected in series. The purpose of this battery is so that the stations basic devices can function independently of the power lines that are fed into the station. If the motor that powers a "power circuit breaker" was powered from a power line coming into the station, and that circuit breaker opened (broke the circuit), then the circuit breaker would no longer have the power to operate. Another reason for this setup has to do with electrical faults. The #1 reason sub stations have large circuit breakers is to stop faults (short circuits). When a tree knocks a power line into something that is grounded that is a fault. During a fault current on the power line rises and the voltage on that line decreases substantially. So if the voltage goes to almost zero, and a circuit breaker needs that very voltage to open so it can break a fault, you have a problem because the circuit breaker will not operate and stop the fault. (and this is the original purpose of the circuit breaker) -Electrical Engineer -Large Electric Utility Company
When would you want to upgrade the main electrical panel vs just adding a sub-panel?
Depending on how many breakers you have in your exisiting panel if you only have a old 6 or 8 circuit panel then I would suggest a new panel, In the newer building world where you have a 20 or 30 circuit panel then I would suggest a sub panel.
When did Weston-sub-Edge railway station end?
Weston-sub-Edge railway station ended in 1960.
When was Weston-sub-Edge railway station created?
Weston-sub-Edge railway station was created in 1904.
What is the place in the home that contains the circuit breakers?
The ciruit breaker box. This is usually mounted near the main power source in the home. Try the basement, the back porch, or near the kitchen. If all else fails, go outside and look where the power meter is. The breaker box should be nearby inside the home. In many homes the electrical panel is in the basement. In homes that do not have basements the electrical panel is placed in the garage.
Have existing a 125 amp main need more breakers spaces?
You can swap a single breaker for two mini breakers or you can add a sub-panel. If you only need a couple of extra circuits then just add mini-breakers.
Is it ok to work alone in a sub station?
No
WHAT DOES THE PREFIX SUB MEN?
The prefix "sub-" means below, under, or smaller in size or importance.
Can you add a second main breaker box to control breakers in the out buildings on a farm?
yes. But this is not a handyman level project. It is suggested you "Call a pro." What you're looking for is not another "main breaker" but a "sub-panel" that is fed by a "feeder" cable from the main panel. Have your electrician calculate the load you'll need in the out-building, then design and install a new feeder circuit and sub-panel for it.
What should you do if your 200A breaker panel is full and you need to add three forty amp two pole singal throw breakers?
First you need to determine if addition of the new breakers will exceed the 200A service under normal operating conditions. If so you will need to go to power company and increase service and put in a larger main panel. If you have the capacity for the extra current you can add a sub-panel and add the breakers there as well as the breakers you will remove from main panel to accommodate the sub-panel breaker. Another way depends on what breakers are in current panel. There are some breakers that can be duplexed in the same space as a single breaker.
