——F435 detects harmonics, which can avoid the capacitor being burnt due to harmonics
Background: In today's rapid development of big data and cloud computing, data centers are showing a trend of concentration, large-scale, and specialization. However, the high reliability, energy-efficient, and secure operation of data centers have gradually become the focus of CIOs and operation and maintenance managers. The focus is on large-scale data centers, frequent crashes, and various accidents, which make the operation and maintenance personnel unprepared. How to prevent problems that have become urgently needed by managers.
Data center UPS battery life is shortened or burned, UPS can not be switched normally, computer or server crashes, power cabinet failure, cable heating or burning, equipment lightning damage, etc. These are related to the fate of data center managers, how to These problems are smashed in the cradle, and these problems can only be completely solved by performing regular fixed-point testing in the data center.
Data from multiple data sources in the data center show that among the many downtime problems, the problem from harmonics is the biggest threat to data center security. How to prevent problems before they happen, the first thing to do is to carry out data center power quality detection to ensure the harmonics are normal, then what is the data center power quality detection?
“What is the data center power quality test?â€We know that many customers believe that the power supply through the transformer will shield the voltage sag, sag and interruption after passing through the UPS, so there is no need to detect the power quality parameters. In fact, this idea is not comprehensive. Critical loads such as UPS, servers, switches, etc. are all non-linear loads, and it is easy to generate harmonics or even resonance in the system. Harmonics and resonance are the main culprit for heat generation of equipment and cables, premature insulation damage, malfunction of relay protection devices, and even equipment downtime. Although the THD value (harmonic total distortion rate) of UPS and other equipment has national standard regulations, and with the development of technology, the 3rd, 5th, and 7th harmonics have been rarely found, but the subsequent higher harmonics It is also more difficult to capture and is more easily overlooked by data center operators.
"What do you need to pay attention to when detecting harmonics?"Only the precise capture of threats from harmonics can ensure the safe operation of the data center. In general, we need accurate, safe and authoritative power quality testers to test the THD and harmonic data in the system. So let's take a look at what Fluke's F435-II advanced power quality analyzer can bring us:
F435-II harmonic measurement times up to 50 times, is one of the few handheld power quality analyzers on the market with third-party certification that fully complies with IEC 61000-4-7 Class A and IEEE1459 standards, and the sampling rate is up to 250ms.
The FLUKE 435-II can view harmonic data directly on the instrument, and can also open recorded data packets through Powerlog analysis software to observe and analyze harmonic trends.
Test interface, harmonic histogram (including THD and each component)
Harmonic data list (including THD and each component)
Voltage and current harmonic trend graph (including THD and each component)
In addition to accurate harmonic testing, FLUKE435-ll can also provide the following power quality testing functions for equipment performance, efficiency detection and evaluation, backup generator efficiency and power generation quality assessment, which can help testers ensure data center security. Reliable operation:
• Power and electrical energy loss analysis
• Basic PQ function: V/A/Hz, power, sag, spur, harmonic, unbalance
• Advanced PQ function: flicker, transient, control signal voltage
• Event waveform capture (such as voltage dips, transients, etc.)
• Inverter efficiency
• Electrical parameter waveform (PowerWave)
• Recording function
Not only that, as can be seen from the following figure, Fluke435-II is designed and manufactured according to the accuracy and algorithm requirements of Class A instruments according to IEC61000-4-30, which can directly help the maintenance and troubleshooting of DC power supply, and the voltage events can be seen at a glance!
Monitoring waveform of F435 sudden rise and fall event F435-II List of sudden rise and fall monitoring events
The use of F435 to detect harmonics can avoid accidents caused by harmonics.
No.: 00111 material: Aluminum specification: 0-5m optional model: uqk-01l the principle of electronic liquid level switch is to detect the liquid level through the electronic probe, and then process the detected signal through the special liquid chip for level detection When the measured liquid reaches the action point, the chip outputs high-level or low-level signal, and then cooperates with the water level controller to control the liquid level No floating ball and reed, no external mechanical action, pollution resistance and durability, not afraid of the influence of floating objects It can be installed at any angle The vertical installation has certain anti - wave function and is suitable for immersion in water for a long time The working voltage is DC 5-24v, which is very safe This method is practical,
Level Measuring Controller,Magnetic Control Liquid Level Switch,Liquid Level Control Switch Module,Liquid Level Control Stainless Float Ball
Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.jbcbyq.com