0
a method of interconnecting several circuits and breakers in a switchyard so that three circuit breakers can provide dual switching to each of two circuits by having the circuits share one of the breakers, thus a breaker and one-half per circuit; this scheme provides reliability and operating flexibility, and is generally used at 500 kV when more than five lines terminate in a substation.
What else can I help you with?
What is breaker and a half?
one and a half breaker scheme the same as N-1 scheme. means if you have two BUS you 3 breakers each bay between it protecting your 2 connected loads or transmission lines. meaning if fault detected in a particular line only two breakers will trip isolating the faulted line and will not affect the adjacent line or load.
Can you use two 15 amp single pole breakers in place of a double pole 30 amp breaker?
Yes. An everyday occurrence of this circuitry is in your kitchen counter split receptacles. The top half of the receptacle is a 15 amp circuit and from the same breaker the bottom half of the receptacle is another 15 amp circuit. A two pole single handle breaker is a common trip. If one of the circuits fed from the breaker faults the other connected circuit will shut off also. If you are talking about slot position in a breaker panel, you can remove the two pole breaker and install two single pole breakers.
If you blew a fuse in your house but the breaker does not show a blown fuse you still have no power to half your house what next?
If it is half the house, that implies the main breaker or the line coming in. Sometimes, double breakers will trip one of them and not the other. It looks like it is still on. Try flipping the breaker off and back on. If you feel comfortable doing it, open up the panel and check each breaker to see if current is getting through them. Just a two prong test light will tell you this. Start on the main, it may be that one of the lines coming in is dead. Looking at the question, you blew a fuse but the breaker does not show a blown fuse. You shouldn't have both in the same circuit. If you have screw in fuses there should be 2 large Buss fuses at the top of the panel. One of these could be blown. These have to be checked with a tester, there is no way to tell just by looking.
Why am I only getting 120 volts from a 30 amp breaker that should be feeding 220 volts?
I assume you have a 30 amp two pole 220 volts breaker. Check the voltage source. If the source voltage is 220V, but out let voltage is 120 then the breaker must be faulty, a high resistance or partial open circuit could have caused the reduced voltage at the breaker outlet.
Electric wall socket stopped working why?
Try checking your breaker panel for a tripped breaker, sometimes they can trip and it appears to be on still, to be sure turn off all single breakers completely to the off position to reset and then back to the on position. or There could be a switch controlling that paticular recepticle also, so check all switches in the area to be sure that its not just turned off. Sometimes recepticles are wired as (half hots) which means that half of the recepticle is always hot and the other half is switched. Also they can switch the entire recepticle with a switch(both sockets or halves). finnally The connections in one of the boxes between the recepticle and the breaker could be loose preventing power from getting to the recepticle. If this is the case you will need an electrician to locate the loose wire.
What is breaker and a half?
one and a half breaker scheme the same as N-1 scheme. means if you have two BUS you 3 breakers each bay between it protecting your 2 connected loads or transmission lines. meaning if fault detected in a particular line only two breakers will trip isolating the faulted line and will not affect the adjacent line or load.
What is the meaning of diameter in power substation diameter refers to transformer bay or transmission line bay in a substation?
A arrangement of Equipment between two bus-bars. Example 1 and 1/3, 1 and half etc.
What is one and half breaker system in electrical lines?
One and half breaker system is an improvement on the double breaker system to effect saving in the number of circuit breakers. For every 2 circuits, 1 spare breaker is provided: Two feeders are fed from two buses via their associated circuit breakers and these two feeders are coupled by a third circuit breaker which is called tie breaker. During failure of any of the two feeder breakers, the power is fed via the breaker of the second feeder and main breaker (tie breaker).
What is the take up on a half-inch breaker?
do you mean bender? If so, 5"
How long of a lunch break did a coal breaker get?
half an hour till Christmas
What caused half the house to lose power?
The power outage in half of the house was caused by a blown fuse or a tripped circuit breaker.
Why does Half of the electrical box works other half doesn't?
One side of main breaker is broke. One line to the house is open.
Bus bar arrangements in sub station?
Burbars are the important elements in the electrical substation. Bus bars acts as nodal point in the substation which connects different incoming and outgoing circuits.Substations present in the power system performs various operations depends on the application such as stepping up the voltage, stepping down the voltage, high voltage transmission and switching stations to route the power to desired load center.Busbars in Substation:Busbars used in the substations are generally rectangular or circular cross section bars. These busbars can be either solid or hollow structures. Hollow circular cross section busbars are employes in EHV substations to reduce the corona effect.Switching Schemes:Switching schemes implies different methods employed to connect electrical circuits in the power system to transfer the electrical power in reliable manner. Switching schemes helps in deliver the electrical power to power system if any part of the system is faulty or under maintenance.Substations use different types of busbar arrangements or switching schemes depends upon the application, reliability of the supply and cost of installation. In every substations busbars plays a common role to connect different circuits. However switching is possible in the power system with the help of circuit breakers and isolators.Considerations for selection of busbar arrangement:Different types of busbar arrangements are employed based on the voltage, reliability of the supply, flexibility in transmitting power and cost. The other aspects considering in designing the busbars arrangements are:Simplicity in the designMaintenance of different elements without interruption in the power supplyFuture expansion feasibilityEconomical in cost of installation and operationDifferent busbar arrangements:Some of the switching schemes are busbar arrangements employed in the substations are listed below:Single Bus-bar arrangementDouble Main Bus-bar schemeMain and Transfer bus-bar schemeOne and half breaker schemeRing Main arrangement schemeSingle Bus-bar scheme:This is the simplest busbar scheme available which consists of single set of busbars connected to the generators, transformers and load feeders. All the feeders are connected by circuit breaker and set of isolators. This arrangement helps to remove the connecting elements (Generators, transformers, etc ) for maintenance by opening the circuit breaker contacts and further opening the isolators.Advantages:This busbar arrangement enjoys less cost of installationLess maintenancesimple operationDisadvantages:Fault on the busbar all the feeders connected to the busbars should be disconnectedwhen Busbar is under maintenance total supply and all feeders should be disconnectedLeast flexibility and reliabilitySee all 5 photosSingle busbar SchemeDouble Main Busbar Scheme:Normally in double main busbar scheme each circuit is connected to both the buses. In some cases half of the circuits can be connected and operated on each bus, in these cases bus or circuit breaker failure would cause loss to half of the circuits. In double main busbar arrangement one or two breakers can be provided for each circuit. Double main busbar and double breaker scheme provides high reliability in the case of fault or outage of one of the breaker.Advantages:Any circuit can be taken out of circuit for maintenanceFlexibility in connecting the feeder circuit to either of the busbarsDisadvantages:Most expensiveLoose circuits connected to busbar when fault occurs on the busbarDouble Busbar Single Breaker SchemeMain and Transfer Busbar SchemeMain and Transfer busbar scheme is similiar to single busbar arrangement with additional transfer bus connected. Tie circuit breaker is provided to tie both the main and transfer bus. During normal operation all the circuits are connected to the main bus. When circuit breaker connected to the circuit (transmission line) is required to trip for maintenance, tie circuit breaker connecting the main and transfer bus is closed. The relay protection for the circuits connected to the transfer bus is taken care by the tie circuit breaker.Advantages:Low initial costAny breaker can be taken of circuit for maintenanceDisadvantages:Requires one extra breaker for bus tieSwitching is somewhat complicated when breaker is under maintenanceMain and Transfer Busbar SchemeOne and Half breaker Busbar scheme:In One and half breaker scheme, two circuits are connected between the three circuit breakers. Hence One and Half breaker name was coined for this type of arrangement. Under normal operating conditions all the breakers are closed and both the busbars are energized. Any Circuit fault will trip two circuit breakers and no other circuit will be affected in this arrangement. When a busbar fault occur only breakers adjacent to busbars trips and no circuit will loose power. Two busbars can also be taken out of service with out affecting the power flow if the power source circuit ( alternator circuit) and receiving circuit (transmission line) available in the same bay.Advantages:Most flexible operation possibleHigh reliabilityBus failure will not remove any circuit from serviceDisadvantages:High costRelaying is somewhat complicated since the middle breaker must responsible for both the circuits on either direction and should operateone and Half Breaker SchemeRing busbar schemeIn this ring main busbar scheme arrangement, breakers are connected in ring and circuits are connected between the breakers. There will be same number of circuits as the number of breakers in the arrangement. During normal operation all the breakers are closed. During circuit fault two breakers connecting the circuit trips. During breaker maintenance the ring is broken but all the lines remain in service.Advantages:Low costFlexible operation for breaker maintenanceAny breaker can be taken out of service without interrupting loadPower can be fed from both the directionDisadvantages:Fault occur during maintenance will break the ringRelaying is complexBreaker failure during fault will trip one additional circuitRing Main Busbar Scheme
Half of 436 is 217.5--why only 216 votes needed?
The Vice President casts the tie breaker.
What is the rhyming scheme of 'My teacher wasn't half as nice as yours seems to be' by Roald dahl?
The rhyming scheme of the poem "My teacher wasn't half as nice as yours seems to be" by Roald Dahl is AABB. This means that the first and second lines rhyme with each other, as do the third and fourth lines.
What is windbreaks?
A win breaker is a fart because when you fart or release methane gas from your anus you are splitting the win in half see
What could be the cause of a power outage affecting only half of the house?
A possible cause of a power outage affecting only half of a house could be a problem with the electrical wiring or a tripped circuit breaker in the electrical panel. It is recommended to check the circuit breaker first and contact a qualified electrician if the issue persists.
