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PCS-9726 Generation Management Unit
The PCS-9726A generation management unit is a protection, control and monitoring unit for the box-type transformer in a new energy substation (wind power, photovoltaic power etc.) on solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system. It also provides communication management function and ring-net switch function. This device is suitable for wall surface mounted indoors or outdoors or flush mounted into a control panel.
This device can support protection function, metering function and communication management function. The binary inputs and outputs of this device can be configured according to the demands of a practical engineering through the PCS-Explorer configuration tool auxiliary software, which can meet some special requirements of protection and control functions.
- Functions
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The functions of this device include protective functions, management functions, auxiliary testing functions and communication management functions, and the functions of this device are listed in the following tables.
Protective functions
50P Instantaneous overcurrent protection
51P Time overcurrent protection
50G Instantaneous zero sequence overcurrent protection
51G Time zero sequence overcurrent protection
50Q Instantaneous negative sequence overvoltage protection
51Q Time negative sequence overcurrent protection
59P Overvoltage protection
27P Undervoltage protection
59G Zero sequence overvoltage protection
MR Mechanical protection
AI Analog inputs
Voltage and current drift auto adjustment
Self supervision
VTS Voltage transformer supervision
CTS Current transformer supervision
Binary inputs
Binary outputs
Management functions
Metering
Circuit breaker status monitoring
Circuit breaker control
TCS Tripping circuit supervision
Multiple setting groups
Control inputs
64 protection operation reports
1024 supervision alarm records
1024 control operation records
1024 user operation records
FDR 64 fault and disturbance records
SOE 1024 latest SOE records, latest records of the following elements state changing: operating abnormality alarm elements, supervision alarm elements, protection elements and binary input elements.
Rear communication ports: Ethernet, RS-485, Printer port
Time synchronization port: RS-485
Auxiliary testing functions
Virtual tripping report generation and communication testing
Virtual self-supervision report generation and communication testing
Virtual binary input state change report generation and communication testing
Virtual metering values generation and communication testing
Communication management and ring-net switch functions
Communication protocol conversion
Data acquisition of protections, smart meters and intelligent electronic devices
Communication with a SCADA system
Communication with a RTU
Communication state supervision of connected devices
Supports various communication protocols
Modification and synthesis of uplink information
Ring-net switch function