Give reason(s) for any difference between measured and nameplate values. Discuss the values obtained both from clockwise and counterclockwise rotation setups. Clockwise RPMCounterclockwise RPMTrial 117971781Trial 217961787Trial 317951791Average17961786.3 HITACHIEFOURKRSINGLE PHA INDUCTION MOTORCONDENSERSTARTTYPE1/2 HP4 POLEFORMRATINGSLVOLTSTTO220THERMAEHERTZ6060PROTECTIEIPT2S6.8COOLING2.4AMP'SHC0117101710minSHELDAG 05 6203SHELD 85 6202150.atCON CẢRULE JEC-2137-2000MEG. No.72300113Hitachi Industrial Technology(Thailand). Ltd. 285903 PHOTO/CONTACT TACHOMETER1787-MEMORY

It is asked to tell the reasons for the difference in speed between measured and nameplate values.…

Give reason(s) for any difference between measured and nameplate values. Discuss the values obtained both from clockwise and counterclockwise rotation setups. Clockwise RPM Counterclockwise RPM Trial 1 1797 1781 Trial 2 1796 1787 Trial 3 1795 1791 Average 1796 1786.3

Give reason(s) for any difference between measured and nameplate values. Discuss the values obtained both from clockwise and counterclockwise rotation setups. Clockwise RPM Counterclockwise RPM Trial 1 1797 1781 Trial 2 1796 1787 Trial 3 1795 1791 Average 1796 1786.3

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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Concept explainers

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.

Question

Give reason(s) for any difference between measured and nameplate values. Discuss the values obtained both from clockwise and counterclockwise rotation setups.

	Clockwise RPM	Counterclockwise RPM
Trial 1	1797	1781
Trial 2	1796	1787
Trial 3	1795	1791
Average	1796	1786.3

HITACHI
EFOUR
KR
SINGLE PHA INDUCTION MOTOR
CONDENSER
START
TYPE
1/2 HP
4 POLE
FORM
RATING
SL
VOLTS
TTO
220
THERMA
E
HERTZ
60
60
PROTECTIE
IPT2S
6.8
COOLING
2.4
AMP'S
HC01
1710
1710
min
SHELDAG 05 6203
SHELD 85 6202
150.at
CON CẢ
RULE JEC-2137-2000
MEG. No.
72300113
Hitachi Industrial Technology(Thailand). Ltd. 285903

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