The DSN/C Digital Phase Monitoring Relay, developed by Borna Electronics, utilizes advanced digital technology to provide comprehensive protection for three-phase electrical systems and equipment. The relay continuously monitors critical network parameters and protects connected equipment against phase loss, neutral loss, phase sequence reversal, overvoltage, undervoltage, and voltage imbalance conditions.
Its most significant advantage is the precise adjustment of protection parameters, allowing users to tailor protection settings to specific application requirements. The built-in digital display shows line-to-line voltages in real time, while six LED indicators provide clear information about operating status and fault conditions.
Features
- Detection of phase sequence reversal
- Detection of phase loss
- Detection of voltage imbalance above the adjustable threshold
- Detection of undervoltage below the adjustable threshold
- Detection of overvoltage above the adjustable threshold
- Adjustable reconnection delay from 0 to 300 seconds
- Adjustable fault trip delay from 0 to 10 seconds
- Adjustable undervoltage threshold from 285 V to 365 V
- Adjustable overvoltage threshold from 400 V to 470 V
- Adjustable voltage imbalance threshold from 5% to 30%
- Digital display for real-time line-to-line voltage monitoring
Technical Specifications
| Parameter | Specification |
| Supply Voltage | 380 VAC, 4-wire system, ±20% |
| Network Frequency | 50 Hz ±5% |
| Internal Power Consumption | Approx. 3 W |
| Protection Degree | IP20 according to IEC 60529 |
| Operating Temperature | -20°C to +60°C |
| Relative Humidity | 15% to 85% |
| Mounting Method | DIN Rail and Flush Mounted according to IEC 60715 |
| Insulation Class | Class II |
| Output Relay | One C/O (SPDT) contact, 6 A |
Applications
- Three-phase motor protection
- Industrial control panels
- Pumps and compressors
- Industrial machinery
- Power distribution systems
- Applications requiring precise voltage monitoring and protection
The DSN/C Digital Phase Monitoring Relay combines advanced digital measurement technology with flexible protection settings, providing accurate monitoring, reliable fault detection, and enhanced protection for three-phase electrical systems.