On the right fender wheelwell with a latching relay (the 2 together)...........hope this helps, Mike
Put your finger on it then turn fan on/off, you should feel the relay latching "clicking"..
Latching relays have no default position and remain in their last position when the drive current stops.
Typically, when the coil voltage on a relay is decreased gradually, the relay "hold" will release at a certain voltage. This is usually defined as the Drop-out voltage (defined at some minimum value). Now, in the case of latching relay, the Drop-out voltage is called the Reset voltage.
how the apfc relay work
Latching current is the minimum amount of current required to maintain the thyristor in on-state immediately after a thyristor is turned on..and Holding current is a minimum current that is required to maintain the thyristor in on-state not allowing it to turn off.Alternative AnswerIf you are referring to a relay or contactor, when the relay is de-energised, there is a break in the magnetic circuit, so the magnetic circuit has an airgap which makes it have a high reluctance. When the relay is energised, the magnetic circuit causes the armature to close, removing the airgap and reducing the value of reluctance. So, when you first energise the relay, there must be a greater magnetomotive to overcome the higher reluctance. When the relay is closed, a lower magnetomotive force will be sufficient to overcome the lower reluctance and maintain the relay closed.
The blue light is the high-beam indicator. The only reason I can think of that it would be flashing is the headlight relay isn't latching into the high-beam position.
Latching Current is the minimum current needed on the gate to fire or trigger an SCR.
How Negative phase sequence relay work
we know that ratio of holding current to latching current in scr is 0.4.
If the relay is bad, then the fuel pump will not work.
Stop hanging on