The 12kV indoor electric earthing switch is an essential component in medium to high-전압switchgear systems. Designed for reliability, safety, and high performance, this switch provides the necessary grounding mechanism in high-voltage electrical cabinets and distribution panels. It plays a crucial role in maintenance operations and fault protection by safely discharging residual electrical energy.
Understanding the Core Concept
Anelectric earthing switchis a protective device designed to ground electrical circuits when maintenance or abnormal conditions require it. This specific model, rated at 12kV with a high short-time withstand current capacity of 31.5kA, ensures that high-voltage systems are safely de-energized. The use of electrical actuation enhances automation and operational reliability, making it ideal for modern intelligent substations.
Application Areas
The 12kV earthing switch finds wide application across various sectors, including:
- Power transmission and distribution stations
- Urban and rural substations
- Industrial plants
- Railway electrification systems
- Renewable energy switchgear
Its compact indoor design and intelligent actuation make it well-suited for enclosed switchgear compartments where safety and rapid switching are critical.
기술 사양
| 매개변수 | 사양 |
|---|---|
| 정격 전압 | 12kV |
| Rated Current | 3150A |
| Rated Short-Time Withstand Current | 31.5kA |
| Peak Withstand Current | 80kA |
| Power Frequency Withstand Voltage (1 min) | 42kV |
| Lightning Impulse Withstand Voltage | 75kV |
| Control Voltage | AC 220V / AC 110V |
| Electrode Count | 3 poles |
| Pole Distance | ≥125mm |
| Protection Standard | IEC 62271-102 |
| Origin | Zhejiang, China |
| Package Dimensions | 30cm x 20cm x 30cm |
| Gross Weight | 5 kg |
Market Demand and Technology Background
에 따르면IEEE그리고IEEMAreports, the global switchgear market is seeing an increasing shift toward automation, fault tolerance, and smart grid readiness. Products such as this 12kV earthing switch align with these trends, offering intelligent operation, high mechanical endurance, and compliance with international standards likeIEC 62271-102.
In addition, evolving energy grids and renewable integrations demand earthing systems that can tolerate higher fault currents and deliver quick operational feedback. The electric actuation function significantly reduces human error and improves time-efficiency during maintenance.
Comparative Advantages Over Traditional Earthing Switches
- Electric Actuation:Unlike manually operated switches, this unit can be remotely operated, allowing safer and faster response in emergencies.
- Compact & Lightweight:With only 5kg net weight, it suits enclosed and compact switchgear systems without compromising safety margins.
- High Fault Tolerance:With 31.5kA withstand capacity, it performs well under severe grid fault conditions.
- Automation Ready:Supports intelligent switchgear setups in smart substations.
Selection Tips and Usage Guidance
When selecting an indoor high-voltage earthing switch, engineers should consider the following:
- Rated Voltage Compatibility:Match with your 12kV switchgear environment.
- Short Circuit Current Profile:Ensure the device can withstand anticipated fault currents.
- Control Integration:حدد جهد التحكم المناسب (220 فولت أو 110 فولت تيار متردد) للتكامل مع أنظمة SCADA أو الترحيل الموجودة.
- Physical Dimensions:تحقق من مساحة الخزانة المتاحة لتوافق التثبيت.
تأكد دائمًا من تنفيذ التثبيت من قبل الموظفين المؤهلين وفقًا لـIEC그리고الرموز الكهربائية المحلية.
자주 묻는 질문 (الأسئلة الشائعة)
ج: نعم ، تم تصميمه مع إمكانية التشغيل عن بُعد ويدعم أنظمة مفاتيح التبديل الذكية ، مما يجعلها مثالية لتطبيقات الشبكة الذكية.
ج:في ظل ظروف التشغيل العادية ، يكون الفحص الدوري كل 12 شهرًا كافيًا.
ج:نعم.
هذامفتاح التأريض الكهربائي 12 كيلو فولتيمثل حلًا قويًا ومتوافقًا مع الذكية وموجهة نحو السلامة للتطبيقات عالية الجهد.
