heater has 3 equal induction-free elements, each with a resistance of 10 ohms. The elements is delta connected and the oven is connected to a three-phase voltage of 230V / 50Hz a) How much power is developed in the oven in total? The elements is now star connected instead and the oven is connected to 400V three-phase voltage. b) How much power is being developed in the furnace now? c) How large will the power be if the elements in the star connection are connected to 230V three-phase voltage?

heater has 3 equal induction-free elements, each with a resistance of 10 ohms. The elements is delta connected and the oven is connected to a three-phase voltage of 230V / 50Hz a) How much power is developed in the oven in total? The elements is now star connected instead and the oven is connected to 400V three-phase voltage. b) How much power is being developed in the furnace now? c) How large will the power be if the elements in the star connection are connected to 230V three-phase voltage?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter18: Resistive-inductive Parallel Circuits

Section: Chapter Questions

Problem 2PA: You are working on a residential heat pump. The heat pump is connected to a 240-V, 60-Hz power line....

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