Fault Recording Device

The SMR-DRE3 series power system dynamic recording device is mainly used for recording voltage and current data during power system faults or abnormal operating conditions, as well as recording the sequence of actions of related protection and safety automatic devices. It reproduces the electrical quantity changes during fault and abnormal operation, and performs comprehensive analysis of fault recording data, providing a basis for determining the cause of the fault and correctly analyzing and evaluating the behavior of protection and automatic devices. This device is mainly used in substations of 110KV and above, but can also be used in substations and power plants of other levels.

(1) Capable of acquiring 96 analog signals and 192 digital signals, supporting high-speed digital input.

(2) Transient recording function: The transient recording function can be activated when there is a fault in the generator-transformer unit, line, or transformer, or when triggered by other conditions.

(3)When multiple large disturbances occur consecutively in the generator-transformer unit, line, or transformer, the device can completely record the entire process of each large disturbance. The recorded data is faithful and reliable, and can accurately reflect harmonics, aperiodic components, etc.

(4) Continuous steady-state function: Capable of continuous recording at 1kHz sampling rates, and continuous waveform recording of electrical quantities such as voltage, current, active power, reactive power, and frequency from the start of equipment operation without faults.

(5) Real-time monitoring function: Provides brief fault information reports when there are faults in lines, transformers, or generator-transformer units, enabling operators to handle faults promptly.

(6) Capable of configuring complete waveform recording start criteria, supporting remote and manual start of waveform recording.

(7) Data output interface: USB data output interface, printer interface.

(8) Communication function: Data transmission conforms to the IEC61850 modeling specification for dynamic recording devices of power systems described in DL/T553-2013 "General Technical Conditions for Dynamic Recording Devices of Power Systems".

(9) Data security management: Data security management ensures that the data recorded by the device will not be lost or damaged due to continuous multiple starts of the device, power outages, human error, or accidental factors.

(10) The waveform recording file format conforms to the COMTRAED data model specification and has a waveform recording file editing function. It can recombine the data in the waveform recording file according to the customized channel to generate a new waveform recording file that conforms to the COMTRAED standard.

(11) High-frequency channel signal recording function

(12) Supports file-by-file data recording mode

(13) The device has complete data analysis capabilities

(14) NTP/IRIG-B time synchronization interface, clock error less than 200 microseconds

Baoding Simaier Electric Co., Ltd. was established on July 1, 2009 and is located in the National High-tech Industrial Development Zone of Baoding City, Hebei Province. It is a high-tech enterprise focusing on the research and development of power system automation, relay protection and instrumentation.