Maintenance Earthing
The switch provides the earthing function within high-voltage switchgear for equipment maintenance. Match its installation and operating arrangement to the selected cabinet.
GreenPower
GPJN15-40.5/31.5 is an assembled indoor high-voltage earthing switch for 40.5 kV, three-phase, 50/60 Hz AC power systems. It is used as the earthing function during switchgear maintenance and can be arranged with GPN1-40.5kV switchgear or similar equipment. Five phase spacings and optional bevel-gear operation support different installation layouts.
The switch provides the earthing function within high-voltage switchgear for equipment maintenance. Match its installation and operating arrangement to the selected cabinet.
Designed for indoor AC power systems at 50 or 60 Hz, with model variants identified by phase spacing for installation selection.
Designed for earthing protection in GPN1-40.5kV switchgear and similar equipment. Confirm mounting dimensions and operating interfaces for the selected cabinet.
Select 280, 300, 350, 360 or 400 mm phase spacing. For spacings below 360 mm, add an insulating plate between phases as specified in the catalog.
A bevel-gear operating mechanism can be specified when required. State the left or right operating direction to match the installation layout.
| Parameter | Data |
|---|---|
| Model Family | GPJN15-40.5/31.5 |
| Rated Voltage | 40.5 kV |
| Rated Frequency | 50 / 60 Hz |
| System | Three-phase AC |
| Installation | Indoor |
| Standard Flexible Connection Length | 600 mm |
| Switchgear Application | GPN1-40.5kV and similar equipment, subject to installation and interface confirmation |
The model suffix identifies phase spacing in millimetres. Select the exact model and check the outline, mounting-hole and fixed-contact dimensions against the switchgear layout.
| Model | Phase Spacing | Standard Flexible Connection Length |
|---|---|---|
| GPJN15-40.5/31.5-280 | 280 mm | 600 mm |
| GPJN15-40.5/31.5-300 | 300 mm | 600 mm |
| GPJN15-40.5/31.5-350 | 350 mm | 600 mm |
| GPJN15-40.5/31.5-360 | 360 mm | 600 mm |
| GPJN15-40.5/31.5-400 | 400 mm | 600 mm |
For phase spacings below 360 mm, add an insulating plate between phases. Download the catalog for the complete outline, mounting-hole and fixed-contact drawings. Confirm any special dimensions with GreenPower before ordering.
If a bevel-gear operating mechanism is required, specify left or right operation. Confirm the operating direction and access against the switchgear layout.
The standard flexible connection length is 600 mm; specify any extension required. State whether a live indicator is needed and provide its model when ordering.
Not exceeding 1000 m above sea level.
-25°C to +45°C.
Daily average not exceeding 95%; monthly average not exceeding 90%.
Not exceeding degree 8.
Class II.
Specify conditions outside the standard service limits when ordering so the configuration can be reviewed.
The catalog references GB1985-2004 and IEC 62271-102 for high-voltage AC disconnectors and earthing switches. Specify the required standard and edition for your project during technical confirmation.
Please specify the product model, rated voltage and phase spacing. Confirm any bevel-gear mechanism with left or right operation, the required flexible connection length, live indicator model and special installation or site conditions.