0
How do you connect an earthing transformer with delta connected secondary?
Wiki User
∙ 15y ago
You have to connect each phase (R,Y & B respectively) of earthing transformer zig zag winding to each phase of power transformer delta secondary respectively. Then the zig zag winding of earthing transformer star point to be earthed.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
How do you connect a diode across a ac coil?
You mean ac coil, the secondary coil, of a transformer? Then for the purpose of rectification, that is , for changing ac into dc, a diode is connected in series with the secondary coil of the transformer.
What is the use of ring main unit?
ring main unit is distributing the power supply to meter cubicalAnswerA ring-main unit (rmu) is a piece of switchgear that is used to connect a transformer's primary winding to a high-voltage ring main. It consists of three load-breaking switches, each with three positions: 'on', 'off', and 'earth'. They enable the transformer to be connected/disconnected to the ring; the ring to be 'broken'; or the transformer to be connected to either half of the broken ring. The 'earth' positions allow the transformer's secondary to be earthed, or either half of the (broken) ring to be earthed.
What happens to a transformer when it is first connected to a power line Can anything be done to mitigate this problem?
If rating is correct, terminal connections are correct, if safety devices are in place, if device is a standard with necessary requrement, it should not be problem to connect a transformer first time.
How do you connect 480 volts to a 230 volt transformer?
First. You should not attempt this unless you are an electrician and KNOW what you are doing. Second: Ensure transformer is rated for 480 primary and 120/240 secondary. Third: See step One... But if you insist on doing it yourself, make sure your insurance is paid up.... On the Primary side of the transformer will be leads marked H1 H2 H3 etc. On the Secondary side the leads will be marked X1 X2 X3 etc. Look on the nameplate data on the transformer. It should tell you if it is rated for 480volts and should have a wiring diagram on it... If it does not, get one that does to ENSURE that you have the correct transformer.... I am an Electrician with BS in Engineering and 21 Years experience... If you seriously need help with this, email me sndemailhere@yahoo.com
What does short circuit current available mean?
If you take a power source like a dc battery or AC transformer secondary winding and connect an ammeter directly across these power sources you can read the short circuit current available from that source. This gives a measure of internal resistance of the battery or the available wattage of the transformer.
How do you connect an earthing transformer with star connected secondary?
transformers transform
Why transformer does not rotate when its secondary is connected to bearing?
How do you connect the transformer's secondary to the bearings.
How do you connect a diode across a ac coil?
You mean ac coil, the secondary coil, of a transformer? Then for the purpose of rectification, that is , for changing ac into dc, a diode is connected in series with the secondary coil of the transformer.
What is the voltage output if the transformer is connected backwards?
It doesn't really matter which way around you use a transformer, the primary winding is ALWAYS whichever winding you connect to the supply, and the secondary winding is ALWAYS whichever winding you connect to the load. For either connection, the turns ratio will ALWAYS equal the voltage ratio for an ideal transformer (or close enough for a real transformer).
What happened if you connect 230V to secondary of transformer whose voltage rating is 230V to 18V?
if you drove the 18V winding with 230V the transformer would burn out, if it didn't catch fire first
Is it necessary to connect a fuse at the secondary side of a current transformer?
Definitely NOT! An open circuit (across a melted fuse for example) on the secondary side of a current transformer is subject to a dangerously-high voltage, so a fuse must not be fitted. The secondary side of a CT must never be open circuited.
How do you connect 480 vac three phase power to a 480 vac single phase transformer?
If the primary and the secondary windings of the three phase transformer are connected in delta, you cannot get a healthy neutral from it but why bother? You simply drive a rod into earth and use it as a neutral. Alternatively either the primary or the secondary windings must be connected as star and you use the common point as neutral.
What is the use of ring main unit?
ring main unit is distributing the power supply to meter cubicalAnswerA ring-main unit (rmu) is a piece of switchgear that is used to connect a transformer's primary winding to a high-voltage ring main. It consists of three load-breaking switches, each with three positions: 'on', 'off', and 'earth'. They enable the transformer to be connected/disconnected to the ring; the ring to be 'broken'; or the transformer to be connected to either half of the broken ring. The 'earth' positions allow the transformer's secondary to be earthed, or either half of the (broken) ring to be earthed.
How to differentiate 110v or 220 transformers?
The way to identify any transformer is to look at the the transformers nameplate. The primary side will be designated H1 to H4. This is the primary side and the voltage will be stated as to the voltage to connect to. The secondary side will be designated X1 to X4. This is the secondary side and the voltage will be stated as to the voltage it will be transformer to.
What will happen if two different rating of Transformers RYB of the secondary winding side is connected with the RYB of the another transformer?
It isn't a good idea to connect transformers in parallel unless they are identical transformers. If they are not exactly the same model there is a danger of high circulating currents, which could cause them to overheat.
How can you connect current transformer to ammeter in three phase?
You use three CTs, one per line conductor, each feeding a separate ammeter,
What is standard earthing of electrical equipment?
i have a question? in the earthing system should we connect the negative pole of supply to the earth for example a +24 power supply?
