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Category:AllAI Deep DiveBooks & IdeasEngineeringIndustryLife NotesStartupWritingZhihu Q&A
[Answer] What’s the Difference Between Electrical Machinery Engineering and Electrical Engineering?
Zhihu Q&AMarch 22, 2026

[Answer] What’s the Difference Between Electrical Machinery Engineering and Electrical Engineering?

At Tsinghua, the Department of Electrical Machinery Engineering and Applied Electronic Technology has the first-level discipline of “Electrical Engineering,” which includes five second-level disciplin

1 min
[Answer] What Are the Differences Among Electrical Machines and Apparatus, Power Systems and Automation, High Voltage and Insulation Technology, Power Electronics and Electric Drives, and Electrical Theory and New Technology?
Zhihu Q&AMarch 22, 2026

[Answer] What Are the Differences Among Electrical Machines and Apparatus, Power Systems and Automation, High Voltage and Insulation Technology, Power Electronics and Electric Drives, and Electrical Theory and New Technology?

Our team’s core business remains centered on industrial automation, with two main directions: the traditional business of low-voltage electrical testing and inspection, and the newer business of the i

6 min
[Answer] 220V/380V Motor Δ/Y Connection Issue?
Zhihu Q&AMarch 22, 2026

[Answer] 220V/380V Motor Δ/Y Connection Issue?

You must wire the motor according to the voltage and connection method specified on the nameplate. Simply changing the wiring cannot increase the motor’s power and may only burn it out.

1 min
[Answer] New to Selling Electronic Transformers and Reactors?
Zhihu Q&AMarch 22, 2026

[Answer] New to Selling Electronic Transformers and Reactors?

Basic sales knowledge and techniques, plus a solid understanding of the products and business. Read books, attend training, and find a mentor to learn from.

1 min
[Answer] Electrical Engineering and Automation Professional: How to Plan Your Vacation for Self-Improvement?
Zhihu Q&AMarch 22, 2026

[Answer] Electrical Engineering and Automation Professional: How to Plan Your Vacation for Self-Improvement?

If possible, it’s best to find an online course platform and systematically study professional courses related to your field.

1 min
[Answer] How Should You Choose Between Power Electronics and Electric Drives, and Power Systems and Their Automation?
Zhihu Q&AMarch 22, 2026

[Answer] How Should You Choose Between Power Electronics and Electric Drives, and Power Systems and Their Automation?

Although Power Electronics and Electrical Engineering sound similar, they are actually quite different in focus. At the undergraduate level, Electrical Engineering usually covers power systems, genera

1 min
[Answer] Should a First-Year Telecommunications Engineering Student Choose a MacBook Pro or Air?
Zhihu Q&AMarch 22, 2026

[Answer] Should a First-Year Telecommunications Engineering Student Choose a MacBook Pro or Air?

It simply depends on whether your budget is sufficient.

1 min
[Answer] Programming a Siemens PLC: How can one switch control a light on and off?
Zhihu Q&AMarch 22, 2026

[Answer] Programming a Siemens PLC: How can one switch control a light on and off?

I haven’t seen your exact program, but based on your description, there is a possible approach: for the part where the counter needs to be reset, try triggering it with the falling edge of the previou

1 min
[Answer] How Are Machine Vision Systems for Positioning on Production Lines Generally Implemented?
Zhihu Q&AMarch 22, 2026

[Answer] How Are Machine Vision Systems for Positioning on Production Lines Generally Implemented?

Machine vision is an important application area of deep learning. In simple terms, it works by training neural networks on sample data. Images of good products are usually easier to prepare, while def

1 min
[Answer] Products on the production line require high-voltage testing. Should the equipment parameters (current, voltage) have tolerances?
Zhihu Q&AMarch 22, 2026

[Answer] Products on the production line require high-voltage testing. Should the equipment parameters (current, voltage) have tolerances?

Sorry, I’m not sure I fully understand what you mean by “tolerance” here.

1 min
[Answer] Is Automation a Good Fit for Girls Who Aren’t Very Strong in Science Subjects (Especially Physics)?
Zhihu Q&AMarch 22, 2026

[Answer] Is Automation a Good Fit for Girls Who Aren’t Very Strong in Science Subjects (Especially Physics)?

There isn’t a very direct connection. If you can do well in math, it generally means your logical thinking is solid.

1 min
[Answer] For a Science-Oriented Girl, Is It Better to Study Medicine or Electrical Engineering and Automation?
Zhihu Q&AMarch 22, 2026

[Answer] For a Science-Oriented Girl, Is It Better to Study Medicine or Electrical Engineering and Automation?

Study medicine, or consider whether there are other majors to choose from. Electrical engineering is not a major I would recommend for women, mainly because many jobs in power distribution operations,

1 min
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