1. Fill in blanks. (1) can be used to prevent short-circuit. (2)There are two kinds of commander apparatuses which are and is often used to prevent motors from long-term overload. (4)According to the type of current passing through the main contact, electromagnetic contactors are classified into and (5)In multi-position control circuit, the start buttons are connected in are connected in (6) The partial-voltage starting includes starting and the stop buttons starting.

1. Fill in blanks. (1) can be used to prevent short-circuit. (2)There are two kinds of commander apparatuses which are and is often used to prevent motors from long-term overload. (4)According to the type of current passing through the main contact, electromagnetic contactors are classified into and (5)In multi-position control circuit, the start buttons are connected in are connected in (6) The partial-voltage starting includes starting and the stop buttons starting.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter32: Two-speed, One-winding (consequent Pole) Motor Controllers

Section: Chapter Questions

Problem 8SQ

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