yes it does...
thanks for asking...
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?
because the termination and relays in side the telecoms penal needs for DC supply to continues the protection equipment and relay and purpose of telecoms
Conductor combining the functions of both a protective earthing conductor and a neutral conductor
DC Bridge... We use DC supply, Detector is also a DC current detector and we use only resistive components no need for wegner's earthing device balancing time is comparatively less.. where as in AC bridges opposite of above. i.e. AC supply, AC current detector resisitive+ reactive componants need for wagner's earthing device and balancing time is high as we use AC supply..
no... run tv with dc supply
Mostly for small dc motor, 2core are used. earthing can be achieved by grounding the chassis.
An earthing system can be defined as the electrical potential of the conductors relative to the EarthÍs conductive system. The choice of earthing method can influence the safety and electromagnetic compatibility of the power supply, and regulations can vary considerably among countries.
Good earthing ensures that should a short takes place in an electrical appliance, any charge is sent safely to earth.
You can't. Buy the correct power supply.
The transformer cannot be used in the DC supply because it keeps on alternating its current, whereas the DC supply current should be constant.
dc supply is used for control circuit because dc current is an independent source .
Variable dc supply is applicable in loads that are variable.