【Daily Question】August 7 – Judgment regarding increased motor temperature (+2 for the first 80 participants, +3 to +8 for correct answers)……
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This post was last edited by Cuicui Chang on 2015-8-10 09:11. The Mechanical Section has introduced the \"Question of the Day\" feature, which aims to foster an active atmosphere for technical discussions and guide the direction of such exchanges. It also provides users with financial rewards, helping them experience various cool features. True or False: Internal causes of increased motor temperature include winding short circuits and excessive load. ( ) Correct answer: Wrong. Because excessive load is an external factor. Requirements and hints for answering questions: Please reply with the answer you believe to be correct. If you provide a detailed explanation or analysis of the question or answer, an additional reward will be given. Extra rewards will be awarded if your answer is correct and your explanation is thorough and accurate. Feel free to answer the questions. Please note: We will close this thread after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation. Please do not submit answers repeatedly. As a reward for your effort, if you post a topic in this section within two days that provides a detailed explanation of the knowledge points covered by this question, please reply to this post or leave a comment to inform us, and we will have a moderator award you + charm points. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights and opinions. After registration, we will rank participants based on the content of their posts: the last-place contestant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm. Call for weekly topics and daily questions (prizes for participation) [Mechanical Section] Collection of essential knowledge [Seeking manufacturer sponsorship] (long-term campaign) [Rewards for recommending valuable content] Summary of daily questions and answers related to mechanical equipment for 2015, insights, centrifugal pumps, key points, themes
This question is correct. The reasons for motor overheating are as follows: (1) Friction between the rotor and the stator, such as when the bearings lack oil or become worn, causing the rotor to sink and rub against the stator. (2) Short circuit in the motor windings or a short circuit. (3) Mechanical failure within the motor itself. (4) Overload of the machinery it drives. (5) Two-phase operation of the motor. (6) Voltage too low.
The internal causes of increased motor temperature include winding short circuits and excessive load. Yes
The internal causes of increased motor temperature include winding short circuits and excessive load. (Correct)
The internal causes of increased motor temperature include winding short circuits and excessive load. (Mistake)
The internal causes of increased motor temperature include winding short circuits and excessive load. ( x )
Error: excessive load is an external cause. The internal reasons are as follows: open circuit in the motor windings, short circuit in the motor windings, incorrect motor wiring, and mechanical faults in the motor
Answer: The internal reasons for an increase in the motor’s temperature include winding short circuits and excessive load. (×)