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1. A 3-phase, 16 hp, 460V, 4-pole, Lottz, 1788 rpm induction motor delivers Full output power to a load connected to its shart. The windage and friction loss of the motor is 758 w. Determine the (a) mechanical power developed (b) Air gap power (c) rotor copper loss.

1. A 3-phase, 16 hp, 460V, 4-pole, Lottz, 1788 rpm induction motor delivers Full output power to a load connected to its shart. The windage and friction loss of the motor is 758 w. Determine the (a) mechanical power developed (b) Air gap power (c) rotor copper loss.

Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter34: Motor Installation
Section: Chapter Questions
Problem 6PP: A 350-HP squirrel-cage induction motor is connected to a 480-volts three-phase feeder. The nameplate...
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1. A 3-phase, 16 hp, 460V, 4-pole, Lottz, Full output power to a load connected to friction loss of the motor is 758 w. power developed (b) Air cap power (c) rotor copper loss. 1788 rpm induction motor delivers it's shapt. The windage and Determine the (a) mechanical 2. Plastic kayaks are manufactured using process called rotomolding. Molten plastic is injected into a mol, which is then spun on the long axis of the Kayak until the plastic cools, resulting in a hollow one-piece craft. Suppore that the induction motors used to spin the molds consume a PF OF 0.88 lagging from a JkW at 220LO Vrms, 60Hz line. Determine the (a) capacitor bank to be placed in parallel with the load to increase the pF to 0.98 lagging. What is the new reactive power ?
Transcribed Image Text:1. A 3-phase, 16 hp, 460V, 4-pole, Lottz, Full output power to a load connected to friction loss of the motor is 758 w. power developed (b) Air cap power (c) rotor copper loss. 1788 rpm induction motor delivers it's shapt. The windage and Determine the (a) mechanical 2. Plastic kayaks are manufactured using process called rotomolding. Molten plastic is injected into a mol, which is then spun on the long axis of the Kayak until the plastic cools, resulting in a hollow one-piece craft. Suppore that the induction motors used to spin the molds consume a PF OF 0.88 lagging from a JkW at 220LO Vrms, 60Hz line. Determine the (a) capacitor bank to be placed in parallel with the load to increase the pF to 0.98 lagging. What is the new reactive power ?
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