Arc Protection Arc Protection Preferred BS622A

BS622 Arc Protection Overview Our independent research and development of a new generation of BS622A arc protection leading domestic level, the arc protection system has three national patents. BS622A arc protection is based on real-time distributed system of high-speed industrial Ethernet technology, rapid removal after generation of arc fault failures, much higher than the traditional relay protection. BS622A arc protection has been used in a number of key projects, system operation and accurate, responsive, reliable, and has a good reputation. BS622A arc protection using a distributed model design, suitable for medium and low voltage bus protection, with flexible networking features. Feeder protection unit which can minimize the formation of independent arc protection system to protect the feeder alone to reduce the scope of the outage. Feeder unit can also run on centralized monitoring mode, one of the primary means for communicating with a schedule. BS622A arc protection detects arc and current use of inputs can be used alone as an overcurrent protection pure arc, and arc and overcurrent protection double criterion. BS622AA arc protection system has simple, reliable and fast action, no special requirements for a device, adapted to the various operation modes of advantages. BS622A arc protection is power plants, substations, industrial and commercial power distribution systems 380V ~ 35kV medium and low voltage bus protection ideal solution. Use BS622A arc protection, can quickly remove the fault, limits the duration of the arc fault, eliminate the harm to the person fundamentally, to minimize the extent of damage to the electrical equipment of the arc, to avoid the main transformers and other equipment for a long time suffered short-circuit current impact damage, blocking the failure of the expansion. BS622A arc protection configuration is as follows: BS622A arc protection Typical applications ● modular substation Substations ● ● High / low voltage switchgear ● Fire safety warning BS622A arc protection Features ● action quickly and reliably, export trip time interval than 7ms ● Aluminum chassis, a combination of plug-in structure, the functional modules are individually designed, strong or weak, to achieve complete separation, anti-jamming capability, on-site maintenance convenience ● distributed systems, multi-CPU parallel processing design improves intelligent plug-in capability, improve operational reliability based plug-between switching network bus links, reduce inter-plugin connection, real-time communication fault detection, support cables and fiber-optic communications ● arc sensor can be set to monitor mode dual probe further improve reliability ● flexible protection logic configuration can be set through the operating criteria Fed arc or a single arc ● Each node can be configured to trip logic alone, can be used to trip the export or failure protection ● wave function with real-time recording, the standard Comtrade format output ● complete self-test alarm function, the whole recording device alarm information and operation ● support the expansion of access to information unit, the maximum you can access 20 different expansion units ● Replace arc boards support a variety of arc sensors ● support IRIG-B time differential pair ● support multiple communication protocols, including IEC61850, IEC103, standard MODBUS RTU protocol ● can access a variety of operating conditions sensors for reaction switchgear operating conditions of sensor data, such as temperature, humidity, smoke, toxic gases, etc., can be locally or remotely view, and set the alarm threshold BS622A arc protection function item Function Name BS622 BS622A supply a wide range of input power input power failure alarm √ √ √ √ input and output phase current input maximum number of sensors (1 / 5A) 2-way 2-way 1212 the maximum number of trips 44 biggest expansion unit Relay emergency number 2020 system supports Fibre Communications Number 34 protection √ √ √ √ arc + single arc overcurrent protection overcurrent √ √ √ √ √ √ failure protection Operate time 10ms 10ms alarm monitoring and control functions Disturbance recording √ √ √ √ √ √ operation time when the function of the IRIG-B code time communication function MODBUS communication √ √ √ √ IEC103 communication - √ IEC61850 communication - √ condition information detection detection node temperature, humidity, flammable gas, SF6 gas, smoke and Insulation leakage current - √ BS622A arc protection main parameters (main unit) AC-DC power supply rated voltage: 220V, tolerance: -20% to + 20% of the DC Rated voltage: 220V, 110V, tolerance: -20% ~ + 15% of the nominal current AC sampling :( In represented by the following): 1A / 5A current measuring range: (0 ~ 20) In the contact trip node performance cooked: 4 Contact capacity: 250VAC / 5A or 30VDC / 5A power consumption AC current circuit: when the rated current of 5A, the DC current circuit per phase ≤1.0VA: ≤20w (single device) Overload 2 times the rated current, long-term continuous operation 20 is rated current, allowing 1s measurement accuracy Current accuracy: error ≤ ± 2.5%; or ± 0.01In arc sensor: error does not exceed ± 10% protection parameters arc and current signals of a comprehensive judgment; judgment signal flexibility to choose a single arc action threshold: (5 ~ 20) kLux rectified current range: 0.1In ~ 20In; rectification error: less than ± 2.5% 0ms delay action; action time ≤10ms .. Action exit delay range: 0 ~ 300ms protection class IP54 BS622A arc protection main parameters (expansion unit) BS622 expansion unit BS622EX6i4o current unit BS622EX16A arc unit BS622FD4I4A4O feeder protection unit supply voltage + 24VDC + 24VDC + 24VDC power 6W 6W 6W total phase current inputs (1 / 5A) 2 Road - 1-way or 2-way maximum number of sensors --164 maximum number of trip 4 - Configurable 4 Alarm relay Number - - You can configure four network communication interface Number 222 supports fiber-optic communication √ √ √ phase current measurement range (0 ~ 20) In - (0 ~ 20) In the phase current measurement accuracy error ≤ ± 3% - error ≤ ± 3% of rated current in 1A / 5A - 1A / 5A arc sensors interventions - Direct access Direct access to arc measurement accuracy - ≤10% not about ± 10% contact capacity 250VAC / 5A30VDC / 5A 250VAC / 5A30VDC / 5A Protection class IP54 IP54 IP54