SPR66 Arc Light Protection System
SPR 66 adopts a PC-style modular structure, providing various options such as I/O boards, communication boards, and arc flash boards while ensuring the standard configuration for arc flash protection. It can continuously inspect all devices within the system, ensuring that the I/O units and point sensor hardware are functioning properly and are correctly connected to the system. The arc flash sensor uses a specially designed photoresistor that is insensitive to everyday light, effectively avoiding interference from light sources other than arc flash. Arc flash protection is a new type of protective device that detects fault arc flashes and quickly cuts off the power at the fault point to prevent severe damage to electrical equipment itself. It is a reasonable supplement to traditional microcomputer protection, capable of effectively protecting fault conditions and dead zones that traditional microcomputer protection cannot cover.
- Commodity name： SPR66 Arc Light Protection System
- Commodity ID： SPR66
- Product Description
- Summary
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Features of SPR66
Main Unit SPR 60ARC
1) Brand-new protection concept: Electrical equipment faults are accompanied by arc light phenomena, which are the energy source causing severe damage to electrical equipment. Minimizing the duration of arc light essentially prevents damage to electrical equipment.
2) Continuous system self-check: The SPR 66 main unit can continuously inspect all devices within the system to ensure the I/O units and point sensor hardware are functioning properly and connected to the system normally.
3) Modular structure: The main unit adopts a PC-style modular structure, providing various options such as I/O boards, communication boards, and arc light boards while ensuring the standard configuration for arc light protection.
4) Cost-effective system solution: The main unit and expansion units can form a comprehensive arc light protection system or be used independently to configure an economical arc light protection system.
5) Flexible expansion and upgrade: The distributed structure of the arc light protection system allows adding main unit boards, I/O units, and sensors at any time, with flexible system protection logic settings to meet actual site requirements.
6) System structure design: In multi-bus arc light protection systems with more than two bus sections, multiple main units hold equal status in overall system communication. The main units back each other up, providing redundancy for protection and enhancing system reliability.
7) High-speed fault response: The arc light protection system optimizes response speed on a safe and reliable basis. From arc light detection to relay trip output takes only 5-7ms, much faster than traditional relay protection trip times.
8) Flexible logic programming function: Using MARCS setting software, protection logic can be customized according to site needs to meet various complex operating modes.
Arc Light Protection System Composition
Main Unit SPR 66
- Two sets of three-phase current, zero-sequence current, and zero-sequence voltage detection
- PC modular structure, easy to expand and maintain
- LCD large screen human-machine interface, system single-line diagram display, supports Chinese menu
- Standard with 5 large-capacity high-speed trip contacts, 6 input points, built-in 2 arc light sensor inputs, one alarm contact switchable between normally open and normally closed
- Integrates event recording, disturbance recording, and fault waveform capture into the arc light protection system to enhance analysis capability before, during, and after arc light phenomena and faults.
- Optional trip logic — "Arc Light" or "Arc Light + Current" dual criteria to ensure fast and reliable tripping.
- Two RJ-45 ports for connecting expansion units
- RS485 communication port, Ethernet port, and front panel USB port, supporting multiple protocols including IEC61850, ModbusRTU/TCP, IEC-103.
- Continuous self-check of all units, breaker failure protection function.
I/O Unit SA12E
- Four selective trip output contacts for designated sensors.
- Three trip mode selections.
- 12 point sensor connections.
- Sensor self-check.
- Sensor channel and trip relay action indication.
- Two RJ45 ports for interconnection between main unit and I/O unit.
- Built-in RS485 communication port, supporting MODBUS communication protocol.
- Can operate independently to realize trip mode selection based on "Arc Light" or "Arc Light + Current" criteria.
Arc Light Sensor AS01
- Operates at light intensity >8000 Lux.
- 270° detection range.
- Meets IP61 vibration requirements.
- Patented technology insensitive to everyday light sources.
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SPR 66 adopts a PC-style modular structure, providing various options such as I/O boards, communication boards, and arc flash boards while ensuring the standard configuration for arc flash protection. It can continuously inspect all devices within the system, ensuring that the I/O units and point sensor hardware are functioning properly and are correctly connected to the system. The arc flash sensor uses a specially designed photoresistor that is insensitive to everyday light, effectively avoiding interference from light sources other than arc flash. Arc flash protection is a new type of protective device that detects fault arc flashes and quickly cuts off the power at the fault point to prevent severe damage to electrical equipment itself. It is a reasonable supplement to traditional microcomputer protection, capable of effectively protecting fault conditions and dead zones that traditional microcomputer protection cannot cover.
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