What are the different classifications of relay for diesel generator sets
It is one of the important electrical components of relay protection. Through its action control circuit connection and cut-off, it has been widely used in voltage and current detection and accident alarm and other occasions. The following is the introduction of the different classification of relay of diesel generator set by Shenzhou Wanda.
There are many types of relays for diesel generators, which can be classified according to different methods. Measuring relay and subsidy relay two categories. Measuring relay it is a direct reflection of large electrical relay, mainly includes voltage relay, current relay, power relay, resistance relay, frequency relay and differential relay and so on six categories.
Auxiliary relay is a relay that indirectly reflects the change of electric or non-electric gas volume. It mainly includes intermediate relay, time relay, thermal relay and signal relay, which are usually used in automatic control devices and protection circuits.
In the way that a relay is connected to a circuit, a primary relay controls that the electric quantity of the relay does not pass through the transformer, but into the primary circuit. Secondary relay The electrical signal of the control relay is provided by the secondary side of the transformer. Classification by relay control break mode direct acting relay The relay acts directly on the trip mechanism.
There are several types of relays for diesel generators. How many types of relays for diesel generators? Indirect acting relay, after the relay action, do not directly control the trip, but control the auxiliary loop, there is an operation loop to action and break trip.
Diesel generator relay protection device from the early mechanical type, electromagnetic type to crystal type, integrated circuit type, electronic relay thus got great development. Although electromagnetic and induction relays have shortcomings such as slow action, low sensitivity, large power consumption volume, movable parts and contacts, they are still widely used at present because of their good mechanical strength and long service life.
With the rapid development of electronic technology, electronic relays have been rapidly developed and applied because of their rapid action, high sensitivity, no action part, shock resistance, impact resistance, and small power and volume.