Power Inverter DC11-15V AC100-120V, AC220V
- Ref Price:
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
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- Supply Capability:
- 10000pcs pc/month
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- Q: A small transformer used in a foundry has 550 primary turns and 20 secondary turns. Initially, the switch on the secondary side of the transformer is open, so there is no connection between the two ends of secondary coil.(a) What is the voltage difference between the two ends of the secondary coil, Vs, if a direct current potential of Vp 120 V is placed across the primary coil? (That is, the frequency of oscillation on the primary is zero.) (b) What is the voltage difference between the two ends of the secondary coil, Vs if Vp is 120 V and the frequency of oscillation on the primary is 60Hz? (c) Now equipment powered by the transformer is put into use and the switch is closed. A resistance of 14 Ω is placed between the two ends of the secondary coils. What is the current through the secondary coil? (d) What is the current through the primary side of the coil with the switch closed? Thanks so much!!
- A. Zero, since dc current does not have a varying magnetis field. B. 550/120 20/ X 4.3636volts Ne /E p Ns / E s C.4.3636v / 14 .311 a. Es / R t A s D. .011 amp if the transformer is 100% efficient
- Q: A transformer is a two coil component that uses electromagnetic induction to pass an AC signal from its input to its output.?How and why are transformers used on electric wires? What would be their purpose??Why do we hear that these transformers break at times?
- D size batteries are not strong enough. It would be so much easier to go buy a solar powered electric fence charger , it does'nt cost anything to run.
- Q: All the specifications work (ie. Hz, Watts, etc). But I wanted to know if it would make a difference if I used a capacitor voltage transformer as opposed to a different type. Thanks.
- You seem to be asking about a ferroresonant transformer. You can use this type of transformer with electronics. There is an advantage to this type of transformer, but there are 2 shortcomings with them. A ferroresonant transformer does a better job of filtering noise than a standard transformer. Unfortunately, they are inefficient, wasting more energy than a standard transformer and they also create a lot of heat. If you use this type of transformer make sure it's well ventilated. The web site below has a very good article on transformers. The ferroresonant transformer article is just over half way down the page.
- Q: What is the meaning of auxiliary transformer, sub-variable and box change What is the difference (in addition to the capacity difference), how to work with, thank you
- During the main transformer failure or overhaul, the auxiliary transformer provides the substation's own electricity. Maintenance of substation lighting, high and low voltage switch action, with the cabinet switch operation, for instrumentation and automatic control system work, sub-change can be box change,
- Q: Hello, I am using a spark transmitting system that will throw about 40KV at about 5MA. I need to step this way down. What rating should I look for? If a current transformer isn't the way to go, please tell me what I should doThanks in advance
- Current transformer coupling the 40kv line then produce about a few hundred volts depending on how many turns existed in the current transmitter. It needs many such transformers to do different step down. If you require over 5kv per step,current transformer coupling might not be the best way. The better way is control the high voltage 40kv source.Vary the supply source shall do.
- Q: hi can anyone tell me when installing/replacing a door bell transformer when switching off power supply at main source will that make it safe to work with the connections, it keeps telling us to turn fuses off well it dont have fuses its a circuit breaker. so do we turn circuit breaker off asweel as main supply into house. may be a silly question to ask but dont wnat any trips to A nad E lol thanks guys xxx
- This Site Might Help You. RE: friedland d753 door bell transformer? hi can anyone tell me when installing/replacing a door bell transformer when switching off power supply at main source will that make it safe to work with the connections, it keeps telling us to turn fuses off well it dont have fuses its a circuit breaker. so do we turn circuit breaker off asweel
- Q: An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 8.00 V. The RMS current delivered to the answering machine is 570 mA. If the primary (input) coil of the transformer has 600 turns, then how many turns are there on the secondary (output) coil?What is the power drawn from the electric outlet, if the transformer is assumed to be ideal?What is the power drawn by the transformer, if 13.5 percent of the input power is dissipated as heat in the coils and in the iron core of the transformer?
- Hello Samantha, in case of ideal transformer the power at the out put would be the same as that in the input. To get the power we need voltage and current. Voltage at the out put is 8 V and current is 570 mA. Hence power consumed by the machine is 4.560 W. So the power drawn in case of ideal transformer will be the same as 4.560 W If the efficiency of the transformer is 86.5% (100-13.5) then the input power will be 5.27 W (approx) To get the number of turns in the secondary let us use Ns/Np Vs/Vp Hence Ns 600*8/120 40 turns.
- Q: Single-phase and three-phase transformer is what it means
- Input and output are single-phase AC is the single-phase transformer. Input and output are three-phase symmetrical AC is the three-phase transformer.
- Q: I need help figuring out this transformer question. I have no idea how to go about it and any information or help will be useful.A 100-kVA, 60-Hz, 7200-480 V, single-phase transformer has the following parameters expressed in OHMS:Rhs3.06 Rls0.014Xhs6.05 Xls0.027Xm,hs17,809 Rfe,hs71400The transformer is supplying a load that draws rated current at 480V and 75 percent power-factor lagging. Sketch the appropriate equivalent circuit and determine:a) The equivalent resistance and equivalent reactance referred to the high side.b) The input impedance of the combined transformer and loadc) The load component of high-side current;d) The input voltage to the transformere) the exciting current and its componentsf) the input impedance at no load
- A 100-kVA, 60-Hz, 7200-480 V, single-phase transformer has the following parameters expressed in OHMS: Rhs3.06 Rls0.014 Xhs6.05 Xls0.027 Xm,hs17,809 Rfe,hs71400 Primary winding is 15*N turns r 3.06 ohms in series with The primary leakage reactance which is L 16mhy(6.05 ohm @60Hz) in series with the magnetizing indctance Xm 17809 ohms 47.24hy which completes the primary series string the core loss is modelled as a 71.4k ohm resistor across the magnetizing inductance the secondary winding is 1*N turns R 0.014 ohms in series with the secondary leakage reactance is L 71.3UHy(0.027ohm@60Hz) the load draws 208.33A (100,000VA/480V) Z 2.304 ohms @ 48.6 deg 2.30448.6 1.786 ohms in series with +J 1.524 ohms(4.042mHy) (75% pf comes from voltage drop is seen from 2.304 ohms but only 75%(1.786 ohms) is resistive transfer from secondary to primary is done by multiplying impedances by 15^2 225 you should be able to do it from here.
- Q: i just got back from seeing transformers and the special effects were awesome but the storyline could have been better. I thought the girl meghan fox was so prettywho thought the same?
- my take was, if you're a decepticon, why give away anything until you're ready to strike? think about it, you're an a**kicking supercomputer with crazy weapons and you can hack the sh** out of the most sophisticated systems on this planet in a matter of seconds. you're looking for a seemingly insignificant pair of glasses WHICH ARE FOR SALE ON E-BAY. you can't just hack a bank or large corporation, jack a few million, and give the high school junior a huge amount of money for the glasses and just wait a day for UPS, THEN go for Megatron and the All-Spark? that was the big one for me, also they put too much comic relief on the transformers side. that version of soundwave they put in there was way too cutesy. and sorry dude, but Meghan Fox is just Jennifer Connolly ten years ago, but without the great skin. don't get me wrong, i thought the movie was decent enough, but people are going crazy over it, and it's unwarranted. that's all i'm saying.
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Power Inverter DC11-15V AC100-120V, AC220V
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 10000pcs pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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