1-laboratory work. Experimental analysis with Electromagnet relays

1-LABORATORY WORK.
Experimental analysis with Electromagnet relays
Work from doing target - type RT-40 and RN-50 electromagnetic vine and tension of relays structure with dating: their main parameters - to work drop off and Back to vines and voltages Back to coefficient, performance for necessary has been power and work the time to determine
THEORETICAL CONCEPTS
Electromagnet of relays performance electromagnetic principle based on They are basically magnet core, spring, armature and to contacts have will be From, spring enough vine from the past harvest to be electromagnetic strength the anchor magnet to the core pulls and anchor imprisoned moving contacts non-moving to contacts is connected, relay works _
Electromagnet relays maximum and be minimal can _
Maximum vine relay to work falling of current the smallest to the value of to work drop off until Big is called Relay from working after vine when it decreases which returns (contacts disconnectable) eng big buckle of the relay Back to until I _rq is called
Minimum current relay vine decrease feels and vine defined up to value when it decreases to work falls _
Maximum tension relay tension from the decline is affected and his anchor magnet core to the poles tension defined tension to the value of when it arrives is drawn . Minimum voltage relay while tension when it decreases to work falls _
Current of the relay Back to from the fact that he worked as a coefficient after returning of current to work drop off until to the ratio it is said. Kq = I _ðk / I _ðu
Tension of the relay Back to coefficient while relay to work from falling after Back to voltage to work drop off to voltage to the ratio equal to K _q = U _ðq / U _ðu
Maximum relays for K _k 1. Maximum current relay R-40 and maximum voltage relay RN-50 control (measuring, starting) body in relay protection and automation devices as is used .
Relay protection devices of the RN-50 type relay the majority minimum voltage in cases relay as is used . Of this for of the relay normal connected from contacts is used .