Product Description
Pad-mounted switchgear designed for underground switching and fusing protection for the distribution grid. With a low-profile lockable tamper proof design, these units are perfect for outdoor public installations.
Technical Specifications
|
Parameter |
Unit |
Technical Data |
|
Rated Voltage |
kV |
10/0.4(HV/LV) |
|
Maximum Operating Voltage |
kV |
12 (HV Side) |
|
Rated Frequency |
Hz |
50 |
|
Rated Capacity |
kVA |
50-1600 |
|
1-Minute Power Frequency Withstand Voltage |
kV |
35 |
|
Lightning Impulse Voltage |
kV |
75 |
|
Cooling Method |
Oil-immersed Self-cooling |
|
|
High-voltage Backup Fuse Breaking Current |
kA |
50 |
|
Insertion Fuse Breaking Current |
kA |
2.5 |
|
Ambient Temperature |
℃ |
-35 to+40 |
|
Coil Allowable Temperature Rise |
℃ |
65 |
|
No-load Tap-Changer |
±5% or ±2×2.5% |
|
|
Noise Level |
dB |
50 |
|
Protection Level |
IP43 |
Advantages
- Improved reliability with encased components.
- Increased safety and ease with dead-front design.
- Environmental and Economic Benefits of Air Insulation.
- Leading-edge durability.
Applications
- Power distribution in harsh environments such as mines and petrochemical plants.
- Grid integration for solar power stations and wind farms.
- Cable loop power supply in residential areas and commercial districts.
Frequently Asked Questions
Q1: What is pad-mounted switchgear?
A: It is medium voltage power distribution equipment (5–38 kV) enclosed in outdoor-rated,low-profile,tamper-resistant cabinets installed on ground-level concrete pads .It provides switching,protection,and isolation functions for underground distribution systems,allowing above-grade operation while protecting live parts from public contact .
Q2: What are the environmental operating limits?
A: Standard units operate from -30°C to +55°C,with submersible versions rated for temporary immersion .Stainless steel enclosures resist coastal salt spray and industrial pollution.Maximum altitude is typically 1000m (3300 feet) standard,with high-altitude options available.
Q3: What is the typical lead time?
A: Standard configurations typically ship within 4-6 weeks.Custom-engineered units with specific relay packages or automation features may require additional lead time.
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