165438+ 10. On 5 October, I took the written recruitment examination of the State Grid Electric Power Research Institute and applied for electrician. What does the written test usually take?

The basic knowledge of electrician should be passed, such as circuit, magnetic circuit, Kirchhoff's voltage-current law, three elements of alternating current, current-voltage conversion, amplification circuit, gate circuit, CMS circuit, oscilloscope, motor structure principle, start-stop control mode, circuit diagram, use methods and precautions of various instruments, transformer principle structure, relay protection control, high-voltage motor, generator principle structure, relay protection control, basic electrical materials and crane control mode. Increase knowledge of PLC, power generation, distribution, operation, relay protection, electrical standards and electrical safety. Reference books: microcomputer protection principle, substation integrated automation, electrical engineering, high voltage technology, power transformation and distribution technology, electric power engineering handbook, power flow calculation, electric drag technology, circuit and magnetic circuit, electronic technology, etc. I hope I can help you.