The 38kV 25kA MV Recloser is engineered to ensure uninterrupted power distribution in demanding outdoor environments, specifically designed for pole-mounted applications in medium-voltage networks. With a robust 25kA short-circuit breaking capacity and full compliance with IEC 62271-111 and ANSI C37.106 standards, this recloser delivers lightning-fast fault detection (<50 ms) and automatic reclosing capabilities, minimizing service disruptions for end-users.
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The 38kV Smart Grid Recloser is an IoT-enabled automatic circuit recloser designed for overhead power distribution networks in rural, urban, and industrial environments.
Its modular design incorporates advanced IoT connectivity, enabling remote monitoring and control that reduces unplanned downtime by 50% compared to traditional reclosers. Whether deployed in:
Rural distribution networks
Urban smart grids
Industrial corridors
This recloser sets a new standard for reliability, safety, and operational efficiency.
| Parameter | Value |
|---|---|
| Rated Voltage | 38 kV |
| Short-Circuit Current | 25 kA |
| Reclosing Cycles | 3 (configurable up to 5) |
| Operating Temperature | –40°C to +85°C |
| Protection Functions | Overcurrent, Earth Fault, Short-Circuit, Directional Overcurrent (optional) |
| Communication Protocols | DNP3, Modbus, IEC 61850 |
| Connectivity | Ethernet, 4G/5G, optional fiber |
| Ingress Protection | IP67 |
| Housing Material | Corrosion-resistant aluminum alloy with UV-stabilized coating |
| Fault Interruption Time | < 50 ms |
| Mechanical life | 10,000 operations |
| Electrical life | 30 full-load interruptions |
Corrosion-resistant aluminum alloy housing with UV-stabilized coating
IP67 ingress protection – fully operational after prolonged exposure to:
Rain and snow
Salt spray (coastal environments)
Dust and sand (desert regions)
Industrial pollutants
Reliable performance in extreme weather conditions – from –40°C to +85°C
Built-in Ethernet and 4G/5G connectivity
Seamless integration with SCADA systems and smart grid platforms
Real-time data transmission includes:
Fault location
Operating temperature
Load current
Reclosing event logs
Supports predictive maintenance strategies – identify potential issues before they cause outages
Remote configuration of protection settings – reduces on-site visits by up to 70%
High-visibility touchscreen HMI (Human-Machine Interface)
Local access to:
Operational data
Fault logs
Configuration tools
Step-by-step guidance for:
Setting up protection parameters
Analyzing fault events
Minimizes need for specialized technical expertise during routine operations
Detects and interrupts faults in < 50 ms
Faster than traditional protection devices (typical 100–200 ms)
Reduces:
Equipment damage (lower thermal and mechanical stress)
Arc flash energy (improved safety)
Power outage duration
Configurable reclosing cycles (up to 5)
Programmable sequence:
Fast (instantaneous) – 3 cycles
Delayed (coordinated) – 2 cycles
Automatic restoration – reduces manual intervention
| Benefit | Description |
|---|---|
| Downtime reduction | 50% less unplanned downtime vs traditional reclosers |
| Remote monitoring | Real-time data via Ethernet/4G/5G |
| Predictive maintenance | Alerts before failure occurs |
| Fault location | Built-in fault detection and reporting |
| Backward compatibility | DNP3, Modbus, IEC 61850 support |
| Wide temperature range | –40°C to +85°C – suitable for arctic to desert |
| High mechanical life | 10,000 operations |
| Low maintenance | Sealed design, no scheduled internal cleaning |
Facilitates integration of wind farms and solar farms into the main grid
Manages variable load demands from renewable sources
Isolates faults in renewable energy collection systems
Ensures stable power flow to the grid
Critical for overhead distribution lines in smart cities
Rapid fault isolation essential for maintaining power supply to:
Residential areas
Commercial districts
Emergency services (hospitals, fire stations, police)
Transportation infrastructure (traffic lights, rail systems)
Protects power distribution networks in:
Mining operations (surface and underground)
Oil and gas facilities (refineries, pipelines, pumping stations)
Manufacturing plants (automotive, steel, chemicals)
Prevents power interruptions that can cause:
Significant production losses (up to $100k/hour in some industries)
Safety risks (loss of ventilation, lighting, emergency systems)
Rural electrification – long-distance overhead lines
Coastal installations – salt spray resistance
High-altitude grids – up to 3,000m (derating above 2,000m)
| Feature | Smart Recloser (38kV) | Traditional Recloser |
|---|---|---|
| Fault interruption time | < 50 ms | 100–200 ms |
| Remote monitoring | Yes (Ethernet/4G/5G) | No |
| Predictive maintenance | Yes | No |
| Fault location reporting | Yes | No |
| Protection setting changes | Remote (SCADA) | On-site only |
| Data logging | Continuous | Event-based |
| Integration with smart grid | Native | Requires retrofit |
| Unplanned downtime reduction | 50% | Baseline |
| Typical cost | Higher initial | Lower initial |
| Lifecycle cost | Lower (reduced maintenance) | Higher (more site visits) |
| Protocol | Support | Use Case |
|---|---|---|
| DNP3 | ✅ Full | Utility SCADA (North America) |
| Modbus TCP/RTU | ✅ Full | Industrial systems |
| IEC 61850 | ✅ Full | Smart grid (Europe, Asia) |
| IEC 60870-5-101/104 | ✅ Optional | Telecontrol |
| MQTT | ✅ Optional | IoT cloud platforms |
Mounting: Pole-mount or substation-mount
Weight: 65 kg (approx.)
Dimensions: 600 × 400 × 300 mm
Installation time: 2–4 hours (typical)
Commissioning: On-site or remote (via 4G/5G)
| Task | Frequency |
|---|---|
| Visual inspection | Annually |
| Control battery check | Every 2 years |
| Contact wear check | Every 5 years or 1,000 operations |
| Firmware update | As needed (remote) |
| Full overhaul | 20 years or 10,000 operations |
Global service network – spare parts and support available
Remote diagnostics – via 4G/5G connection
Extended warranty – available upon request
Q: What is the typical response time?
A: The recloser detects and interrupts faults within < 50 ms of occurrence – significantly faster than traditional protection devices (100–200 ms). This rapid response minimizes damage to equipment and reduces the duration of power outages, often restoring service automatically through programmed reclosing cycles.
Q: Can it be integrated with existing infrastructure?
A: Yes. The recloser is designed for backward compatibility with legacy control systems through standard RTU (Remote Terminal Unit) interfaces and communication protocols such as DNP3 and Modbus. This ensures seamless integration with existing SCADA systems, allowing utilities to upgrade their networks without replacing entire infrastructure.
Q: What is the expected service life?
A: 30+ years under normal operating conditions. The recloser has a mechanical life of 10,000 operations and an electrical life of 30 full-load interruptions.
Q: Is the recloser suitable for coastal environments?
A: Yes. The corrosion-resistant aluminum alloy housing with UV-stabilized coating and IP67 ingress protection make it ideal for coastal, offshore, and high-humidity environments.
Q: Can protection settings be changed remotely?
A: Yes. Protection settings (overcurrent, earth fault, reclosing cycles, etc.) can be configured remotely via SCADA or locally via touchscreen HMI. Remote configuration reduces the need for on-site visits, saving time and operational costs.
Q: What is the maximum altitude for operation?
A: Standard operation up to 2,000 meters. For altitudes above 2,000 meters, derating factors apply. Please consult our technical team for high-altitude installations.
✅ < 50 ms fault interruption – faster than traditional devices
✅ 50% less unplanned downtime – IoT-enabled predictive maintenance
✅ IP67 rugged design – suitable for coastal, desert, and industrial environments
✅ Remote monitoring and control – Ethernet, 4G/5G, DNP3, Modbus, IEC 61850
✅ –40°C to +85°C operating range – arctic to desert
✅ 30+ year service life – 10,000 mechanical operations
✅ Backward compatible – integrates with legacy RTU and SCADA systems
