Published On: Sun, Oct 6th, 2019

Some Typical Single-Line Diagrams of HV Switchgears

Author: Radoje Jankovic

SOME TYPICAL SINGLE-LINE DIAGRAMS OF HV SWITCHGEARS

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.

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Some Typical Single-Line Diagrams of HV Switchgears