연세대학교 전력 및 제어공학 실험 chapter23-26 ELECTRIC POWER AND CONTROL ENGINEERING LAB Result-Report

소개글

연세대학교 전력 및 제어공학 실험 chapter23-26 ELECTRIC POWER AND CONTROL ENGINEERING LAB Result-Report에 대한 보고서 자료입니다.

본문내용

NO. 23 THE SYNCHRONOUS MOTOR AND THE ELECTRODYNAMOMETER
OBJECT : Learn how to connect a three-phase synchronous motor and how to connect the electrodynamometer.


Fig. 23-1
5. a) Vary the rheostat control for minimum stator current as indicated by the three current meters. (The control knob should be close to its full ccw position.)
b) Measure and record the three stator winding currents, ( at minimum stator current).
I_1 〖=0.12 A,I〗_2=0.12A〖,I〗_3=0.13A
c) Increase the rotor dc excitation by adjusting the rheostat for minimum resistance(control knob turned fully clockwise cw).
d) Measure the three stator winding currents (at maximum rotor dc excitation).
I_1 〖=0.35 A,I〗_2=0.37A〖,I〗_3=0.35A
6. Reduce the dc excitation until the stator currents at their minimum values. Note and record the position of the rheostat control knob.
Control knob scale position = almost mid point
7. a) Using your hand tachometer measure the running speed of the motor as you vary the dc ex-citation.
speed-minimum excitation = 1801 r/min
speed-midpoint excitation = 1800 r/min
speed-maximum excitation = 1801 r/min
b) Note whether the direction of rotation is clockwise or counter clockwise.
rotation = counter-clockwise

키워드

연세대학교,   전력및제어실험,   전력,   실험,   제어공학 실험,   전력실험,   제어파트,   실험결과,   제어실험