A DC relay is a relatively simple device that uses a single coil, normally wound round an iron core. When a voltage is applied, current flows through the coil and generates a magnetic field. As the magnetic field increases, a spring loaded lever is attracted to the core and moves the switch contacts from an "off" state to an "on" state.
The lever will be held in place as long as the current flows in the coil. When the coil current drops to zero, the magnetic field decays and the lever is released, the spring then pulls it back to it's off position.
The same as a DC relay it's got a electro magnet that pulls the contactors open or close.
What types of magnet either permanent or electromagnetic for AC and DC relay?"how DPDT relay works?
what is the meaning of ac relay and dc relay EDIT: a DC relay is simply a coil and core that pulls on an armature. An AC relay usually needs a shaded-pole core (couple of copper loops) to prevent the armature from vibrating at 60 cycles or so. The core, also, is laminated steel like a transformer; so is the armature to help contain the magnetic field. You should not substitute a DC rated relay for an AC , but the reverse should be ok, if voltage and current ratings are the same.
how the apfc relay work
A dc series motor can work on dc and ac because dc motors are totally reversible.
How Negative phase sequence relay work
Probably...The 6V 40A relay figures out as 240Watts...The same relay at 12V 30A figures out as 360Watts.
ya it will work in both ac and dc
On the side of the relay there is a name plate that tells you the current carrying capacity of the contacts. It gives you the ratings at different AC voltages and a DC rating of the contacts at different voltages.
Transformers don't work with DC supplies - they only work on AC.
Motors work on both DC and AC. It depends on their design.
Yes, if the fan is designed to work on DC voltage, otherwise no.
No, unless you have a pulsating DC
Wire it as shown in the diagram at the link below.
they work in Washington DC
Well, yes. But it isn't much needed as DC is already DC.
transistors work on dc not ac however they can have ac signalss fed into them
If the relay is bad, then the fuel pump will not work.
No. They will not work correctly with DC.
There is no way that you can convert a 12 VDC relay to a 230 VAC relay. Most relays when needed, are purchased with the correct coil voltage that is needed for the project.
Yes, it is a fuel pump relay.
no,we cant use transformer in dc, but we can change the dc with help of switch (pulsating DC ) and connected to transformer. it will work
it is only work on it so that used
since the physical construction of a DC motor and DC generator is the same,it can work either way.in other words,yes a DC motor can work as a DC generator(if you drive it by a primemover it will produce electricity).however its not possible with all AC motors.
When current is applied to the windings of the relay, a magnetic field is created, and this will attract the moving part of the relay, which in turn may open or close other electrical contacts. A relay may be operated by either ac or dc according to its design.