Intelligent Vacuum Automatic Circuit Recloser for Medium-Voltage Distribution Networks
Overview
The Arian Kelid Pars Automatic Circuit Recloser (ACR) is an advanced medium voltage switching and protection device designed to enhance the reliability, protection, and automation of overhead power distribution networks.
Manufactured under the technology license of ENTechnology, South Korea, the ACR utilizes vacuum interruption technology to deliver fast, reliable, and maintenance-free switching performance without the use of SF6 insulating gas.
Installed on primary distribution feeders, the ACR automatically detects temporary and permanent faults, performs automatic reclosing operations, isolates permanent faults, and significantly reduces outage duration while improving overall system reliability.
Its integrated protection, automation, and communication capabilities make the Automatic Circuit Recloser (ACR) an ideal solution for modern Distribution Automation (DA) and Smart Grid applications.
Key Features
* Vacuum interruption technology
* Designed for overhead medium-voltage distribution networks
* Automatic circuit reclosing
* Equipped with the advanced R200 Protection Controller by PNC, South Korea
* User-friendly protection relay interface
* Comprehensive fault monitoring
* Local and remote operation
* SCADA and Dispatch Center integration
* Temporary and permanent fault detection
* Reduced outage duration
* Improved network reliability
* SF6-free design
* Zero gas leakage risk
* Minimal maintenance requirements
* Long mechanical and electrical service life
Applications
The Automatic Circuit Recloser (ACR) is suitable for:
* Overhead distribution feeders
* Primary distribution networks
* Utility substations
* Distribution Automation (DA)
* Smart Grid infrastructure
* Industrial facilities
* Municipal utility networks
* Critical power distribution systems
Protection & Control Functions
* Automatic Reclosing
* Fault Detection
* Overcurrent Protection
* Short-Circuit Protection
* Event Recording
* Remote Monitoring
* Remote Control
* SCADA Communication
Communication Protocols
* IEC Protocols
* DNP3
* Modbus
* RS-485
* CAN Bus Communication
* SCADA Integration
| No. | Technical Parameter | Unit | 24kV Model | 36kV Model |
| 1 | Rated Voltage | kV | 24 | 36 |
| 2 | Rated Frequency | Hz | 50 / 60 | 50 / 60 |
| 3 | Rated Current | A | 630 / 1250 | 630 / 1250 |
| 4 | Rated Short Circuit Breaking Current | kA | 25 | 25 |
| 5 | Rated Peak Withstand Current | kA | 63 | 63 |
| 6 | Rated Short Time Withstand Current (3s) | kA | 25 | 25 |
| 7 | Insulation Level - Power Frequency Withstand Voltage | kV | 50 / 65 | 70 / 95 |
| 8 | Lightning Impulse Withstand Voltage (BIL) | kV | 125 | 170 |
| 9 | Mechanical Class | - | M2 | M2 |
| 10 | Electrical Class | - | E2 | E2 |
| 11 | Operating Mechanism | - | Magnetic Actuator | Magnetic Actuator |
| 12 | Number of Current Transformers (CT) | - | 3 CT | 3 CT |
| 13 | Number of Voltage Sensors / CVT | - | 6 CVT / Voltage Sensors | 6 CVT / Voltage Sensors |
| 14 | Communication Protocol | - | IEC 60870-5-101/104, MODBUS, DNP3 | IEC 60870-5-101/104, MODBUS, DNP3 |
| 15 | SCADA Compatibility | - | Yes | Yes |
| 16 | Reclosing Sequence | - | O-0.3s-CO-3s-CO-60s-CO | O-0.3s-CO-3s-CO-60s-CO |
| 17 | Mechanical Life | Operations | 10000 | 10000 |
| 18 | Auxiliary Supply Voltage | VDC | 24 / 48 / 110 / 220 | 24 / 48 / 110 / 220 |
| 19 | Ingress Protection | - | IP65 | IP65 |
| 20 | Operating Temperature | °C | -40 ~ +55 | -40 ~ +55 |
| 21 | Mounting Type | - | Outdoor Pole Mounted | Outdoor Pole Mounted |
| 22 | Standard | - | IEC 62271-111 | IEC 62271-111 |