EBK ELECTRIC MOTOR CONTROL
EBK ELECTRIC MOTOR CONTROL
10th Edition
ISBN: 9780100784598
Author: Herman
Publisher: YUZU
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Chapter 48, Problem 12SQ
To determine

Explain how the feeder motor is protected for an overload condition in the Figure 48-9.

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Cari induktasi saluran transmisi terhadapku GMD
A wattmeter is connected with the positive lead on phase “a” of a three-phase system.  The negative lead is connected to phase “b”. A separate wattmeter has the positive lead connected to phase “c”.  The negative lead of this wattmeter is connected also to phase “b”.  If the input voltage is 208 volts line-to-line, the phase sequence is “abc” and the load is 1200 ohm resistors connected in “Y”, what is the expected reading of each of the wattmeters? (Hint: draw a phasor diagram)
a b 1 ΚΩΣ 56002 82092 470Ω Rab, Rbc, Rde d e O 470Ω Σ 5 Ω 25$ 5602 3 4 Ω
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