NS-DZ300 Power Quality Tester

1. Overview With the vigorous development of China's national economy, significant increase in power load, especially the growing impact and nonlinear load capacity, making the power grid waveform distortion, voltage fluctuation and flicker and phase imbalance of power quality problems. The company introduced the NS-DZ300 power quality tester (hereinafter referred to as NS-DZ300) is a high-performance multi-function power quality test and analysis equipment. 2. Technical Specifications 2.1 fundamental voltage error: ± 0.2% 2.2 voltage deviation error: ± 0.2% 2.3 Fundamental current error: ± 0.5% 2.4 frequency deviation error: ± 0.01Hz 2.5 frequency range: 45Hz ~ 65Hz 2.6 three-phase balance: voltage unbalance absolute error of 0.2% current imbalance of 1% absolute error voltage and current of each sequence component 0.5% 2.7 voltage fluctuation measurement error: ± 5% 2.8 Flicker measurement error: ± 5% 2.9 A harmonic measurement Level 3, the main function of the device 3.1 Power Quality Monitoring: comes with a large size LCD touch screen color LCD (1280 x 1024), grid frequency, phase fundamental voltage and current rms, fundamental active power, reactive power, power factor, phase and the like; voltage deviation, frequency deviation, three-phase voltage unbalance, phase current imbalance, negative sequence voltage and current; harmonic (2 ~ 130 times): THD voltage, current, including each state harmonic ratio, amplitude, phase and inter-harmonics, voltage fluctuations, flicker, voltage swells, dips, short interruptions, temporary over-voltage, over-voltage transients with fault recorder and field equipment detection. with an online continuous detection, analysis. 3.2 Real-time waveform: real-time display of voltage, current waveform and vector, harmonic histograms, powerful analysis software. 3.3 event-triggered recording spread Disturbance: When overvoltage, undervoltage, overcurrent, voltage and current peaks overrun, harmonic gauge, digital transition and other events can be recorded before and after the event and the failure to produce waveform and the corresponding event and fault records, event and fault recording data analysis capabilities. 3.4 Communication Interface: RS-485, Ethernet port, usb 3.5 GPS time function: Interface 4, spare parts and tools 1, each device and system upgrades should provide dump U disk when using the GPS on. 2, should provide the equipment required for feeding cable and various cable retaining clip and other mounting accessories. 3, to provide equipment maintenance, disassembly with special tools. 4, said the number of spare parts and tools in the following table: No. Name Quantity 1 Test line 1 set 2 U disk 1 3 4 1 set of special tools and equipment test fixture Annex 1 set