Product Overview
SF DZ-3AC Power Quality MonitorIt can be applied to substations of various voltage levels in the power system and power supply and distribution systems of industrial and mining enterprisesPower quality monitoringAccording to the analysis, this series of products strictly comply with the relevant technical standards issued by the country, and their performance indicators meet the requirements of IEC61000-4-30 Class A instrument performance. At the same time, they meet the requirements of the latest national standard for power quality for measuring various indicators.
Product Features
◆ Adopting high-performance embedded industrial control boards and TI's 32-bit DSP as the core, with data processing capabilities, logic, and control capabilities, the core hardware is at the advanced level in China;
Adopting a multi CPU structure, each channel has a unique 32-bit DSP, ensuring real-time and accurate power quality data;
◆ Industrial grade DOM storage, using compression algorithms, data can be saved for more than a year, and real-time data is not lost when powered down;
◆ Adopting GPS synchronous sampling technology to ensure synchronous sampling of monitoring devices within the same substation or different substations;
◆ Data sampling: Each channel has a unique 16 bit parallel A/D, and all channels are fully synchronized for sampling, resulting in higher accuracy and faster speed;
◆ Adopting hardware phase-locked loop technology and automatic frequency tracking to prevent the impact of frequency changes on monitoring indicators in the power system and prevent frequency "leakage";
◆ Adopting a 5.7 inch large screen color LCD display, using an embedded operating system as the software platform, all software is programmed using VC++high-level language, ensuring high reliability and portability of the system;
◆ Microcomputer protection with back plug structure, channel expansion board supporting hot swapping, and simple installation;
Product Features
Basic monitoring quantity | Effective values of frequency, voltage, current, total active and reactive power, power factor |
Basic monitoring indicators | Grid frequency, effective value of voltage/current, total active/reactive/power factor, effective value of three-phase fundamental voltage/current, phase of fundamental voltage/current, fundamental power/power factor, voltage deviation, frequency deviation, three-phase voltage imbalance, three-phase current imbalance, negative sequence component, harmonic (2-63 times), including total harmonic distortion rate of voltage and current, harmonic content, amplitude, phase angle, harmonic active Harmonic reactive power, harmonic apparent power, etc |
Advanced monitoring indicators | Voltage fluctuations, flicker, interharmonics, subharmonics, voltage surges, voltage dips, overvoltage, undervoltage, short-term interruptions. |
Other functions | Parameter setting function
Record storage function
GPS time synchronization function, using GPS B code time synchronization method; System timing.
Power loss alarm function |
Technical indicators
technical specifications | Parameter indicators |
Manufacturer | Baoding Fangchang Electric Power Technology Co., Ltd |
Equipment model | SF DZ-3 |
Number of sampling paths | 1X3Phase voltage, 1X3 phase current |
Voltage measurement range | AC10～400V |
Current measurement range | zero point zero five～5A |
Frequency measurement range | forty-two point five～60Hz |
Grid frequency error | ≤0.002 Hz |
Voltage deviation error | ≤ 0.2% |
Voltage fluctuation error | ≤ 0.2% |
Flicker error | ≤ 5% |
Error in three-phase voltage imbalance | ≤ 0.2% |
Harmonic measurement error | Meet the requirements of national standard A-level instruments |
Interharmonic measurement error | Meet the requirements of national standard A-level instruments |
Power error | ≤ 0.5% |
Display screen | five point sixInch TFT color LCD screen |
Working power supply | AC220V± 20% frequency 45Hz~55Hz
DC110V/220V±20% |
Communication interface; Communication protocol | Support RS232/RS485/Ethernet port;
Supports ModBus RTU and IEC60870-5-103 communication protocols |
power dissipation | <20W |
Working temperature/humidity | Working temperature -20 ℃~+60 ℃, humidity 5%~95% (non condensing) |
size | 1/2 19" 6UBackplug chassis; 19 "4U back plug-in chassis |
weight | About 2kg |
Installation method | Embedded |
National ordering hotline:fifteen billion eight hundred and three million one hundred and twenty-five thousand five hundred and sixty-five
