Published On: Sun, Oct 6th, 2019

Some Typical Single-Line Diagrams of HV Switchgears

Author: Radoje Jankovic


Here are presented a few typical single-line diagrams for HV switchgears from practice.

  1. Single-feeder radial circuit single-line diagram, Fig. 1.
Fig. 1.

2. Parallel-feeder circuit single-line diagram, Fig. 2.

Fig. 2.

3. Open loop circuit single-line diagram, Fig. 3.

Fig. 3.

4. Local normal source single-line generation circuit, Fig. 4.

Fig. 4.

5. Double-feeder radial single-line circuit, Fig. 5.

Fig. 5.

6. Double busbars single-line circuit, Fig. 6.

Fig. 6.

7. Closed loop circuit single-line diagram, Fig. 7.

Fig. 7.

8. Replacement source generation single-line diagram and source changeover

The source can be generator set, transformer, UPS. Fig. 8. & Fig. 9.

Fig. 8.
Fig. 9.

All diagrams from my archive.

About the Author

- Radoje - Rade Jankovic Electrician, Electrical Technician, Electrical Engineer, PhD, Ecologist, Environmentalist, Designer, Educator, Investigator... Today PROFESSIONAL TECHNICAL WRITER AND DOCUMENTATOR Massive practical experience in almost all fields of electrical engineering over 40 years. My International education group in Facebook: EEEW - ELECTRICAL & ELECTRONIC EDUCATION WORLD where published more than 8000 small or bigger articles, lessons, technical advice, projects, technical calculations, test questions with and without answers, illustrated test questions with and without answers; all my original works and few thousands of may original photos from practice, drawings, circuit diagrams, environmental lessons and examples from everyday practice etc., etc.

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Some Typical Single-Line Diagrams of HV Switchgears