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Can you use a doorbell transformer with more amps than the original?
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What is the differences between current and potential transformer?
Current Transformer- Instrument transformer used for measure high current. it hasless and thin turns in primary and more and thick turns in secondary.Potential transformer- Instrument transformer used for measure high voltage. it has more and thin turns in primary and less and thick turns in secondary.CommentUnfortunately, the original answer has got things the wrong way around for the CT! A current transformer's primary has a thicker conductor than its secondary.
What is the difference between isolation transformer and ferromagnetic transformer?
An isolation transformer is usually a ferromagnetic transformer. The question needs to be framed more usefully.
How transformer get burn?
Current overload from whatever circuit draws current from the transformer? Proper fusing of its supply might protect a transformer from this cause. Or it could have developed a shorted turn fault because the insulation on a winding got old and perished? Or maybe the transformer got damaged if the appliance it is mounted in was dropped?
Is transformer an amplifier?
No. In an amplifier, Power Out > Power in. In a transformer Power Out ~= Power In (minus internal losses). An AC generator is more like an amplifier than a transformer.
How many amps will a 20VA transformer provide?
To answer this question a voltage is needed. I = 20/E. <<>> Each device powered by the transformer will have a rating of draw also in VA. So many for a t-stat, so many for zone valve or damper etc... add em up, make sure transformer is over and you re good. 20 VA is not very big. door bell transformers are around that size. most hvac systems need 30, 50, 70 or more VA.
How many amps does a 240 volt 12VA transformer draw?
12/240, 0.05 amps, maybe about 30% more because of the poor power factor of small transformers.
How many amps on 25 kva transformer 1phase secondary 230 volts?
Take the KVA and divide it by the voltage. 25/.230 = 109 amps. The transformer can put out up to 50% more that its rated for short durations. So you could get around 150 amps out of a 25 Kva tranformer in a worst case situation.
How many amps is 18-2 copper wire safe for?
That wire is only good for low voltage wiring such as a doorbell or a thermostat any more would cause a fire.
What is the load for the doorbell circuit?
The typical doorbell transformer is capable of about 1 ampere .... so depending on your bell or whatever it rings , the load will be less. Some electronic bells can be very low energy devices so 100-200 milliamps ).1 to 0.2 amperes) might be more in their operating range.
Step down transformer of a specs of 110 primary to 24 v 12va CAn you used a 110v primary to 24v 20 va What is the difference between them?
Yes. The Va numbers indicate the rating of the transformer (12VA indicates that you can draw upto 12/24 = 1/2 Amps at 24 volts and 20VA indicates that you can draw about 20/24 = 0.83 Amps). Usually 20va transformer will cost more than the 12va transformer. So, unless a higher power output is required, it is adequate to use the lower rating transformer. However, you cannot go the other way - if you use a 12va transformer in-lieu of the 20va one, if the application needs more power, then you have a reliability problem. The transformer will have more loss, heat-up and then eventually burn out.
Can you plug a 120V amplifier into a regular socket in a household?
No, you can not plug a 240 volt amplifier into a 120 volt outlet. That said there are a number of step-up transformers available that will convert 110V to 220V - that's the simplest way to do it. You should make sure the transformer is rated at many times the power of your amplifier, because of inefficiencies in the amplifier. Look on your amplifier to see how many amps it uses at 220V. Double that number for going to 110 and add 20% more amps as a conversion margin. Take that number and multiply it by 110 to get the watts you need to supply. Size the transformer accordingly. eg. 5 amps @ 220V 5 amps * 2 = 10 amps 10*20% = 2 amps Total amps = 12 amps 12 amps*110 = 1320 watts In this example a transformer rated at or above the calculated wattage is recommended.
What is the differences between current and potential transformer?
Current Transformer- Instrument transformer used for measure high current. it hasless and thin turns in primary and more and thick turns in secondary.Potential transformer- Instrument transformer used for measure high voltage. it has more and thin turns in primary and less and thick turns in secondary.CommentUnfortunately, the original answer has got things the wrong way around for the CT! A current transformer's primary has a thicker conductor than its secondary.
Is it dangerous to run an appliance with more watts than the transformer?
A transformer has a rating that is usually expressed in KVA. This is approximately a wattage rating. It is not dangerous but it can be the cause of some concern. An appliance has a set current that is draws. This current times the voltage is the appliance's wattage. The same goes for the transformer. It only has a certain capacity to supply a specific current that is governed by its KVA (watts). Driving the transformer beyond its rated capacity tends to heat the transformer beyond its working temperature. If left in this over current draw the transformer's windings insulation will break down and the windings will short circuit. This is usually the end of a working transformer. So short answer, more watts (amps) from appliance equals burned out transformer.
What is a current of transformers?
The current rating of transformers vary widely as well as the types (step-down, etc.....). So depending on the use, the primary power, and the secondary power, the amp load will change. More in general current is amps, if your transformer has say 1Kva on it then that tells you the apparent power the transformer can handle. As a side note a lot of transformers are rated in VA or KVA and that is a combination of volts and amps (apparent power).
How you amplify the current from 5 amp to 10 amp on 12 v Dc supply?
The amperage rating of the transformer in a 12V power supply cannot be changed. The size of the copper windings determine the power load (amps) it can handle and the point where the lead is tapped off of the windings determine the voltage. The only way to increase the amperage would be to tap closer to the core which would lower the voltage.If you need more amps you have to have a heavier transformer.
What is the difference between isolation transformer and ferromagnetic transformer?
An isolation transformer is usually a ferromagnetic transformer. The question needs to be framed more usefully.
I want to use my Car stereo on household current how to convert 120v ac to 12v dc?
You can buy a transformer that will output 12 volts DC at just about any electronics or department store. You will need to check the amperage as well to make sure that the transformer can handle the current draw, but for a radio this should not be that high (it's okay for the transformer to be rated for MORE amps than the radio draws).
