I. Basic Definition of Model
Product Series: REC650 (Bay Control Unit) – ABB Substation Bay Integrated Measurement and Control IED
Complete Order Part Number: 1MRK008514-AA, where AA represents the hardware standard configuration version
Position: High Voltage / Medium Voltage Switchgear Bay Controller + Auxiliary Protection + Integrated Measurement and Recording Device, focusing on local / remote operation interlocks for circuit breakers, disconnectors, grounding knives, with the emphasis on local / remote operation of these devices. It can be used in conjunction with feeder, bus tie, main transformer bay, and belongs to the ABB Relion 650 series platform. It is equipped with the debugging software PCM600
Differentiation: On the same platform, the protective type REF650 focuses on relay protection; REC650 is centered around bay interlock five-prevention, primary equipment control, bay logic, and protection functions are optional extensions
Core Hardware Structure
Integrated embedded panel installation for the entire machine, with HMI integrated on the front, modular terminal interfaces on the back:
1. Local Human-Machine HMI on the front
Color LCD display, customizable primary wiring diagram for the bay
Local disconnection, connection physical buttons, navigation function keys, 5 custom shortcut buttons
15 three-color status LED (operation / alarm / position / fault)
PCM600 dedicated local communication port (RJ45)
2. Terminal partitions on the back
CT/PT analog input terminals: three-phase current, three-phase voltage collection, supports 1A/5A CT, 100V PT
DI digital input: circuit breaker position, spring energy storage, cabinet door interlock, disconnector / grounding knife position, remote/local switch, protection action contacts
DO control output: circuit breaker disconnection, connection, energy storage motor, disconnector operation, alarm signal relay
Communication interfaces: dual Ethernet RJ45, RS485/SPA optical fiber bus, IRIG-B/PTP time synchronization interface
Auxiliary power supply terminals: DC operating power input
Core Function Modules
1. Bay Control and Five-Prevention Interlock (Core Function)
Local / remote disconnection, connection control for circuit breakers, disconnectors, grounding knives
Complete five-prevention logic for double busbars / single busbar: prevent pulling and closing knife switches under load, prevent closing ground knife under power, prevent closing breaker under ground knife, prevent incorrect disconnection and connection of circuit breakers
Synchronization check (Synchrocheck), no-voltage closing verification, multi-bay interlock logic
Operation locking, local / remote permission switching, operation counting, disconnection of the closing circuit monitoring
2. Optional Auxiliary Protection Function
Overcurrent, zero-sequence overcurrent, overvoltage / undervoltage, frequency abnormality, CT/PT breakage alarm, does not replace the professional main protection of REF650, used for backup alarms in simple distribution bay
3. Measurement, Recording and Events
Three-phase voltage, current, power, power factor, energy metering (0.5 accuracy)
SOE event sequence recording resolution 1ms, complete recording of operations, faults, and changes
Short-term fault recording, capturing voltage and current waveforms before and after the fault
4. Multi-protocol Communication
IEC 61850 MMS/GOOSE (standard for intelligent stations, rapid interlock for the bay)
Modbus TCP, SPA bus, IEC 60870-5-103, IEC 60870-5-104
IRIG-B, PTP network precise time synchronization, full station time synchronization
Electrical and Environmental Parameters
Auxiliary working power supply
Optional: 24~60VDC / 100~250VAC/DC wide-range operating power supply
Typical power consumption of the entire machine 32W, power loss retention time <50ms
Analog quantity acquisition
CT: 1A/5A adaptive; PT secondary 100V phase voltage; channel isolation withstand voltage 2kV AC
Environmental conditions
Operating temperature: -25℃ ~ +70℃; storage -40~+85℃; IP20 cabinet installation; complies with the complete set of IEC61000 power EMC anti-interference standards
Installation dimensions: standard 4U embedded switch cabinet opening, integrated whole machine cannot be disassembled panel and host
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