The microcomputer power fault recorder monitoring device is different from the traditional microcomputer power fault recorder monitoring device. The traditional microcomputer power fault recorder monitoring device is connected with analog voltage and current signals, and the device needs to synchronously sample and process these signals; The input of the digital microcomputer power fault recording and monitoring device is a digital signal, which is directly connected to the digital merging unit through optical fiber. The device adopts IEC61850-9-1 or IEC60044-8 communication protocol, receives discrete sampling data sent by the merging unit, processes and analyzes it, and realizes the fault recording function
Functional features:
1. Adopting ETX integrated embedded hardware structure platform and layered distributed multi CPU parallel technology, ensuring the device's data processing ability
2. Fiber optic interface supports multiple communication protocols: The device is connected to the digital merging unit through fiber optic.
, Support IEC61850-9-1 communication protocol using fiber optic Ethernet port and IEC60044-8 communication protocol using serial data transmission3. Flexible and reliable networking and data remote transmission using 103 protocol, Support various networking and data remote transmission methods
Technical specifications:
1. Sampling frequency: flexibly adjustable according to the sampling frequency of the merging unit
2. Number of merging unit connections: no more than 24
3. Analog channel accuracy:
AC voltage: ± 0.2% UN
AC current: ± 0.2% IN
Active power: ± 0.5% UNIN
Reactive power: ± 0.5% UNIN
Direct power Flow channel: ± 1% UN
Frequency: ± 0.005Hz
4. Ranging accuracy: better than 2%
5. Starting accuracy: exceeding the limit start: better than 2%; Sudden variable initiation: better than 5%; Switching value startup:<1ms
6. Embedded industrial computer: hard disk ≥ 80G, memory ≥ 256MB, 12.1 ″ TFT LCD screen display
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China