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The breaker should be legibly marked, or the line side will clip onto the bus bar, and the load side should have a termination screw of some kind for you to attach a wire to it.
Some bolt in breakers are not marked, the type you may use in a custom control cabinet and it can be confusing. When vertical mounting, always set the breaker so gravity would open the breaker. Attach the line side to the top lugs. Horizontal mounting, just make sure it is marked for the off position, use either end for load or line.
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Will a breaker trip if it is being fed from the load side to energize the bus in the breaker panel?
A breaker should never be fed from its load side to energize the bus in the breaker distribution panel. This question suggests that you are trying to connect a generator to back feed your electrical panel during a power failure. This setup as killed linemen trying to repair the downed primary lines. If the panels main breaker is not opened, the generator will back feed the pole transformer that the linemen are working on and bring the line potential up to 14,000 volts. There are proper change over switches in the market now that will allow you to run your generator and the switch will automatically disconnect the utility connection before making the connection to the house panel. If this is your line of thought, do a bit of research on the subject. The last thing people in the trade want to hear is another lineman getting electrocuted. If the load exceeds the rating of the breaker and the breaker is functioning properly, it will trip.
Which terminal on a 15 amp household breaker does the hot wire feed into and which one does it come out?
On a 15 amp household breaker there is no terminal on the in feed of the breaker. The breaker either plugs into the distribution panel's bus bar or it bolts to the distribution's bus bars. The feed conductor connects to the load side of the breaker at its terminal lug.
Will a gfci breaker work when neutrals and grounds are together in main panel or will there have to be a separate ground bar installed and wires separated?
Yes a GFCI will work if the neutrals and ground are to together the main panel. This is considered the line side of feed side of the GFCI. Neutral and ground can not touch down stream from the GFCI or on the load side of the GFCI.
How can I get 230 volt single pole wire from my house panel?
In North America you can not obtain 230 volts from just one single pole breaker. The distribution is like this, from a one pole breaker to neutral is 120 volts. From an adjacent breaker to neutral is 120 volts. From the adjacent breaker to adjacent breaker (breakers situated beside each other) the voltage will be 230 volts.If you want to incorporate a 120 to 230 volt transformer into the circuit you can obtain 230 volts. The primary side of the transformer will be connected to the 120 volt circuit and the secondary side of the transformer will output 230 volts. The transformer must be sized to the load amperage or the load wattage of the connected 230 volt load.
Why would two GFICI breaker outlets that are tapped off of an outside GFI on its own line and breaker not work?
GFCI receptacles are extremely sensitive, there are any number of reasons this may not be working for you. The first thing you can do is to make sure that the wire feeding your 2 other outlets off of the outside GFCI are connected to the line side of the device. There are 2 sides to any GFCI: the "line" and the "load" side. The line connections are typically at the bottom, and the load at the top.The load side is protecting all the downstream receptacles on the circuit. Be sure you have the blacks ("hot" or "line") and whites (neutrals) all on the correct side. Any receptacles downstream don't need to be GFCIs because they will automatically be protected if connected to the load side of the first GFCI.If you want to use GFCIS for the two new receptacles then you should make sure they are both connected to the line side BEFORE the outside GFCI so they will work independently of the outside one.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
How is a Load applied to a ac generator?
The load conductor is connected to the load side of the generator breaker. Once the generator is up to speed the load breaker is closed and the voltage is then applied to the load.
Why does a transformer blow the circuit breaker on the primary side if it is not connected to a load on the secondary side?
A normal transformer should not blow the primary side breaker when it is not connected to a load on the secondary. If it does, something is wrong. Check for shorted or burned windings. Make sure that it is indeed disconnected from the load - it might still be connected to something that is also presenting a fault.
Is it normal of 50 ampere circuit breaker rating to be hot when load is 17 amps 3 phase at 240volts?
No, the 50 amp breaker should not be getting hot with a 17 amp load. Shut the service off at the disconnect and check the bolts that tighten the breaker to the distribution's bus bars. Check the tightness of the load side of the breaker. if all of these connections are tight then change the breaker out for a new one.
What size wire do i need to feed a single phase V primary and a V secondary fed from a 150 amp circuit breaker?
Information is incomplete. You need to know the load in Watt or Kilowatt and the voltage on the secondary side to determine the load current, on which the size of the wire is designed.
Will a breaker trip if it is being fed from the load side to energize the bus in the breaker panel?
A breaker should never be fed from its load side to energize the bus in the breaker distribution panel. This question suggests that you are trying to connect a generator to back feed your electrical panel during a power failure. This setup as killed linemen trying to repair the downed primary lines. If the panels main breaker is not opened, the generator will back feed the pole transformer that the linemen are working on and bring the line potential up to 14,000 volts. There are proper change over switches in the market now that will allow you to run your generator and the switch will automatically disconnect the utility connection before making the connection to the house panel. If this is your line of thought, do a bit of research on the subject. The last thing people in the trade want to hear is another lineman getting electrocuted. If the load exceeds the rating of the breaker and the breaker is functioning properly, it will trip.
How do you wire a 2 pole 208volt motor switch?
The switch will have two termination points at the top or one side called the line side of the switch. The corresponding bottom or other side of the switch will be called the load side of the switch. Terminate the two wires from the distribution breaker to the line side of the two pole switch. Terminate the motor to the two terminals on the load side of the switch. On a motor switch there should be a place where an overload protection can be screwed in. Order the overload heater element to the sizing of the amperage on the motor's nameplate rating.
Which terminal on a 15 amp household breaker does the hot wire feed into and which one does it come out?
On a 15 amp household breaker there is no terminal on the in feed of the breaker. The breaker either plugs into the distribution panel's bus bar or it bolts to the distribution's bus bars. The feed conductor connects to the load side of the breaker at its terminal lug.
What should be the short circuit setting of the feeder breaker of a transformer so that it does not trip on short circuit fault in secondary side?
You need to model this - the line impedance and transformer impedance, and the voltage will determine this. There is no "one size fits all".
Will a gfci breaker work when neutrals and grounds are together in main panel or will there have to be a separate ground bar installed and wires separated?
Yes a GFCI will work if the neutrals and ground are to together the main panel. This is considered the line side of feed side of the GFCI. Neutral and ground can not touch down stream from the GFCI or on the load side of the GFCI.
What is the load side of a transformer?
The load side of a transformer feeds the device, such as a light or motor. It is the output of the transformer. The input, or line side, provides the voltage that is to be transformed, either up or down, to supply the load side.AnswerA transformer's primary winding is connected to the supply voltage, and the secondary winding is connected to the load.
Where isolators are placed in substation?
An isolator is a non load-breaking switch, and is provides a visible means of isolating a component, such as a circuit breaker, transformer, etc., from the high-voltage lines, whenever it is necessary to perform maintenance of that component. Normally, isolators come in pairs, with one on each side of the component to be isolated. Isolators are only opened afterthe load current has been broken using a circuit breaker, and must be closed before the circuit breaker is reclosed.To work on, say, a h.v. circuit breaker, the breaker must be tripped, the isolators on either side must be opened and locked off, temporary earths attached to either side of the circuit breake- to-work card, detailing the maintenance work, must be issued to the crew by the supervising engineer.
How can you determine if their is power at a light switch?
Use a volt meter to measure the voltage to neutral on each side of the switch. By turning the switch on and off and monitoring the voltage on one side and then the other, you can determine the supply and load side of the switch.
