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CMGZ11-05 Transient Recording Type Fault Indicator
Product Features
Product Highlights
● Intelligent anti-drop. Support online detection, online maintenance, automatic redial when offline, to ensure that the device is always online
●Three-layer system protection. On the basis of the original two-level (software protection + CPU built-in watchdog WDT protection) system protection, a first-level system virtual watchdog VWM (Virtual Man Watch) detection and protection function is added to ensure the stability and reliability of the system
● Ultra-low power consumption. The device can remain in an ultra-low-power sleep state while operating on battery power alone
● Automatic reset, timed reset, remote reset
● Power "lasting, stable and reliable - efficient low-current induction power extraction technology
● "Ubiquitous" IoT, controlling the future - cloud platform for intelligent analysis of big data in the cloud
CMGZ11-05 transient wave recording type fault indicator comprehensively utilizes intelligent sensor technology, signal processing technology, artificial intelligence technology and information and communication technology to monitor the line current and electric field to the ground of medium voltage distribution network with high precision and real-time online status. High-sampling wave recording is triggered when abnormal changes occur. According to the recorded wave data, it can realize accurate location of ground faults in low-current grounding systems, retrospective inversion of complex fault processes, and early warning of abnormal line conditions, effectively shortening line fault recovery time and changing "passive repair reporting". In order to "active monitoring", we can effectively improve the operation and maintenance level of the distribution network and improve the efficiency!
When the fault indicator detects a short circuit or a ground fault, it will immediately trigger the flop and flash alarm indication, and at the same time, the fault information will be wirelessly transmitted to the collection unit through 433MHz/LoRa, and the collection unit will upload it through the 2G/3G/4G/5G network. to the master system. After the master station receives the fault information, combined with the GIS system, it can quickly locate and alarm the fault point.
Technical Parameter
technical parameter
project | content |
Applicable voltage | 6～35kV |
frequency band | 300~510MHz |
Communication distance | >50m |
fault recorder | 4096Hz |
fault recorder | Bright LED, 360° omnidirectional; flop indication |
Continuous flash time | 2000h |
flop | more than 2000 times |
Fault reset method | The timing is automatically reset, and the time can be set from 1 to 48h. Power-on automatic reset and remote manual reset. |
Neutral grounding method | Adapt to various grounding methods |
Applicable wire type | Overhead insulation and bare conductors 35mm²～240mm² |
Identified fault type | Phase-to-phase short circuit, all kinds of single-phase grounding |
Transmit power consumption | ＜25mA |
Receive power consumption | ＜3mA |
communication rate | 100kbps |
hardware system
project | content |
CPU | Industrial grade CPU, stable and reliable performance |
MMU | CPU with MMU memory management unit, which can prevent memory overflow from causing system exceptions |
FLASH | 64Mbits is enough memory to store programs and data |
SDRAM | 256Mbits has enough cache to improve system operation speed |
power supply
project | content |
Supply voltage | 3.6V |
Standard power supply | 1A (basic version 3A) on low-load lines continuously obtains stable power |
current | 0～300A，measurement accuracy：±3A 300A～600A，measurement accuracy：±3% |
物理特性
project | content |
weight | ＜1000g |
shell | plastic shell |
温度参数
project | content |
Operating temperature | -25 ºC ~+70ºC |
Storage temperature | -40 ºC ~+85ºC |
Relative humidity | 95%(no condensation) |
Product Size
Selection Guide
Application Scheme
