Maintenance Earthing
Installed as the earthing function in high-voltage switchgear, the switch supports the grounding arrangements required for equipment maintenance.
GreenPower
GPJN15-24kV Earthing Switch
Rated Voltage24 kV
Short-Time Withstand Current31.5 kA / 4 s
Short-Circuit Making Current80 kA
Mechanical Endurance2,000 operations
Product Overview
GPJN15-24/31.5 is an assembled indoor high-voltage AC earthing switch for 24 kV, three-phase, 50/60 Hz power systems. It provides earthing protection during switchgear maintenance and has short-circuit making capability. The product is rated for 31.5 kA short-time withstand current for 4 s and is available with 210 mm or 275 mm phase spacing.
24 kV Three-Phase Systems
Designed for indoor AC systems at 50 or 60 Hz, with a 31.5 kA, 4 s short-time withstand rating for the GPJN15-24/31.5 model.
Key Features
Short-Circuit Making Capacity
The GPJN15-24/31.5 version has an 80 kA short-circuit making rating and an 80 kA peak withstand rating, alongside its 31.5 kA, 4 s short-time withstand duty.
Two Phase Spacings
Choose 210 mm or 275 mm phase spacing to match the switchgear layout. Confirm the complete outline and mounting dimensions for the selected model.
Live Indicator Options
The switch can be ordered with or without a live indicator device. Specify the indicator model when this option is required.
Technical Specifications
| Parameter | Data |
|---|---|
| Rated Voltage | 24 kV |
| Rated Frequency | 50 / 60 Hz |
| Rated Short-Time Withstand Current | 31.5 kA |
| Rated Short-Time Duration | 4 s |
| Rated Short-Circuit Making Current | 80 kA |
| Rated Peak Withstand Current | 80 kA |
| 1-Minute Power-Frequency Withstand Voltage | 65 kV |
| Lightning Impulse Withstand Voltage | 125 kV |
| Mechanical Endurance | 2,000 operations |
The power-frequency and lightning impulse insulation values apply phase to earth and between phases.
Model Selection And Installation
The model suffix identifies phase spacing in millimetres. Select the exact model and check its outline, mounting-hole and fixed-contact dimensions against the switchgear layout.
| Model | Phase Spacing | Standard Flexible Connection Length |
|---|---|---|
| GPJN15-24/31.5-210 | 210 mm | 400 mm |
| GPJN15-24/31.5-275 | 275 mm | 400 mm |
Download the catalog for the complete outline, mounting-hole and fixed-contact drawings. Confirm longer flexible connections or special dimensions with GreenPower before ordering.
Operating And Ordering Options
Left Or Right Operation
Specify the required left or right operating arrangement in the order. Check the shaft side and operating access against the intended installation.
Flexible Connection Length
The standard flexible connection length is 400 mm. State whether an extended connection is needed and provide the required length for technical confirmation.
Service Conditions
Altitude
Not exceeding 1000 m above sea level.
Ambient Temperature
-25°C to +45°C.
Relative Humidity
Daily average not exceeding 95%; monthly average not exceeding 90%.
Seismic Intensity
Not exceeding degree 8.
Pollution Class
Class II.
Special Service Conditions
Specify conditions outside the standard service limits when ordering so the configuration can be reviewed.
Standards Referenced
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.
- GB1985-2004
- IEC 62271-102
Request Technical Confirmation For GPJN15-24kV
Please specify the product model, phase spacing, left or right operating direction, and whether a live indicator is required. Include the indicator model, required flexible connection length and any special installation or site conditions.