BONUS: A number of incandescent lamps are connected in delta across the lines of a balanced 230 V, 3-phase, 3-wire system. A single phase wattmeter is connected in the circuit. The current coil of the meter is connected in line 1 while the potential coil is connected across line 1 and 3. This wattmeter registers 8.4 kW. If the potential terminal of the meter, which was connected in line 3, is transferred to line 2, the wattmeter reads 7.5 kW. If each lamp is rated 100 W, how many lamps are connected across lines 1 and 2. Assume lamp pf to be unity.

BONUS: A number of incandescent lamps are connected in delta across the lines of a balanced 230 V, 3-phase, 3-wire system. A single phase wattmeter is connected in the circuit. The current coil of the meter is connected in line 1 while the potential coil is connected across line 1 and 3. This wattmeter registers 8.4 kW. If the potential terminal of the meter, which was connected in line 3, is transferred to line 2, the wattmeter reads 7.5 kW. If each lamp is rated 100 W, how many lamps are connected across lines 1 and 2. Assume lamp pf to be unity.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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