Acrel BD series power transmitter is a device that converts electrical parameters such as current, voltage, frequency, power, power factor, etc. in the power grid into linear DC analog signals or digital signals through isolation.Widely used in PLC system, automation industry, water treatment company, etc. <br> <br>BD-3P Three Phase Power Transducer can measure active power, reactive power, and isolate and transmit analog signals.can also measure voltage, current, power, power factor, frequency; 1.2 times the rated value overload; DC 0-5V/0-10V/0-20mA/4-20mA can be selected as analog output. <br>Input:AC 1A/5A,AC 100V/22V/380V <br>Output:DC 0-20mA/4-20mA/0-5V/0-10V <br>Power supply:AC 85~265V,DC 100V~350V,DC 24V <br>Accuracy:Class 0.5 <br> <br>Video of 3 Phase Power Transducer <br>Wiring of BD-3P Three Phase Power Transducer <br>BD-3P Three Phase Power Transducer interface 3/4,5/6,7/8 is A/B/C phase current input,interface 13/14/15/16 is A/B/C/N phase voltage input,interface 1/2 power supply L/N(AC 85~265V,DC 100V~350V,DC 24V),interface 9/10/11 is the Ep/Eq pluse output,interface 17/18/19/20/21 is the four channels analog output DC 4~20mA,0~20mA,0~5V,0~10V which can connect to PLC system etc. <br> <br>Application of BD-3P Three Phase watt var transducer <br>Industrial automation <br>Photovoltaic and wind power industry <br>Metallurgy, electric power and oil field <br>Railway locomotive and shipping industry <br>Package of BD-3P Three Phase Power Transducer <br> <br>MINIMUM PACKAGE <br>MINIMUM PAKAGE Package dimensions(1 PC) <br>17*15.5*12.5cm Pakage Weight(1 PC) <br>0.55Kg <br> <br>WHOLE BOX PAKAGE Package dimensions(4 PCS) <br>45.5*26*19.5cm Pakage Weight(4 PCS) <br>3.2kG <br> <br>PRODUCT HS CODE 9030339000 <br>#watt #var #transducer <br>[a]https%3A%2F%2Fwww.acrel.gr%2Fproducts%2Fbd-3p-three-phase-power-transducer%2F[/a]

#mini #current #transformer <br> <br>[a]https%3A%2F%2Fwww.acrel.gr%2Fthe-working-principle-of-active-power-filter.html[/a] <br> <br>Active power filter is a new type of power electronic device used to dynamically suppress harmonics and compensate reactive power. It can quickly track and compensate harmonics of different sizes and frequencies. Source filter can only passively absorb harmonics of fixed frequency and size, the active power filter can control and actively output the magnitude, frequency and phase of the current by sampling the load current and separating the harmonics and reactive power, and respond quickly to offset the corresponding current in the load, realizing dynamic tracking compensation. And it can not only make up harmonics but also make up reactive power and unbalance. <br> <br>1. Theoretical basis of active power filter <br> <br> <br>Compared with the passive filter, the active power filter design has a good governance effect. It can mainly filter out multiple and high-order harmonics at the same time without causing resonance, but the price is relatively high. The actual application safety factor is very low. The international common practice is to use transformer boosting to ensure reliability. Relevant state departments also require the combination of transformer boosting and active filters to control high-voltage harmonics. <br> <br>2. The active power filter working principle <br>The active power filter detects the load current through the current transformer, and calculates through the internal DSP, extracts the harmonic components in the load current, and then sends it to the internal IGBT through the PWM signal to control the inverter to generate a harmonic current with the size of the load. Equal and opposite harmonic currents are injected into the power grid to achieve the purpose of filtering. <br> <br>The function of the command current detection circuit is mainly to separate the harmonic current component and the fundamental wave reactive current from the load current, and then reverse the polarity to generate the command signal of the compensation current. The function of the current tracking control circuit is to calculate the trigger pulse of each switching device of the main circuit according to the compensation current generated by the main circuit, and this pulse acts on the main circuit after the driving circuit. In this way, the power supply current only contains the active component of the fundamental wave, so as to achieve the purpose of eliminating harmonics and performing reactive power compensation. According to the same principle, the active power filter can also compensate the negative sequence current component of the asymmetric three-phase circuit. <br> <br>The main circuit of the active power filter is generally composed of a PWM inverter. According to the different energy storage elements on the DC side of the inverter, it can be divided into voltage-type active filters (energy-storage elements are capacitors) and current-type active filters (energy-storage elements are inductors). The voltage-type active filter needs to control the capacitor voltage on the DC side during operation, so that the voltage on the DC side remains unchanged, so the output of the AC side of the inverter is a PWM voltage wave. The current-type active filter needs to control the inductor current on the DC side during operation, so that the current on the DC side remains unchanged, so the output of the AC side of the inverter is a PWM current wave. The advantages of the voltage-type active filter are that the loss is less and the efficiency is high. The current will produce a large loss in the internal resistance of the inductor. <br> <br>If you want to know more kinds of power transducer, please visit our website.

#power #transducer <br> <br>[a]https%3A%2F%2Fwww.acrel.gr%2Fproducts%2Fpz72l-de-multifunction-dc-energy-meter%2F[/a] <br> <br>PZ series intelligent DC atorch electric energy meter is designed for applications such as DC panels, solar power, telecommunications base stations, and charging posts. This series of instruments can measure voltage, current, power, forward and reverse power in DC system. <br> <br>PZ72L-DE Multifunction DC Energy Meter can be used for local display, and connected with industrial control equipment, computers, form a measurement and control system. And it has a variety of external excuse functions for the user to choose. <br> <br>If you want to know more kinds of ac current sensor, please visit our website.

#ac #current #sensor <br> <br>[a]https%3A%2F%2Fwww.acrel.gr%2Fproducts%2Fdtsd1352-c-solar-inverter-smart-meter%2F[/a] <br> <br>Acrel sungrow smart meter DTSD1352 din rail type multi-function energy meter is an intelligent instrument designed mainly for energy statistics and management needs of power systems, industrial and mining enterprises, and public facilities. Integrate common power parameter measurement and power metering and assessment management, and provide various power data statistics for the past 48 months. sungrow dtsd1352 has 2~31 times sub-harmonic and total harmonic content detection, with switch input and switch output, it can realize &quot;remote signal&quot; and &quot;remote control&quot; functions, and has alarm output. <br> <br>Wiring of Acrel DTSD1352 sungrow-C Solar Inverter Smart Meter <br>sungrow smart meter dtsd1352 Solar inverter smart meter interface Ua/Ub/Uc is A/B/C phase voltage input, interface N is the neutral wire, interface Ia*/Ia is A phase current inlet/outgoing wire, interface Ib*/Ib is B phase current inlet/outgoing wire, interface Ic*/Ic is C phase current inlet/outgoing wire, interface 21/21 is RS485 A/B, interface 17/18 is Active energy,19/20 is reactive energy. <br> <br>Acrel DTSD1352-C Solar Inverter Smart Meter Application <br> <br> <br>1. Connected to solar inverter in PV solar system <br> <br>2. Industrial and mining enterprises&#039;s kwh meausrenment. <br> <br>3. Calculate the electricity consumption in power supply system <br> <br>4. Measurement of electrical energy in large public buildings <br> <br>For more information about sungrow dtsd1352 c three phase energy meter and dtsd1352 manual, please feel free to contact us! <br> <br>If you want to know more kinds of measure current transformer, please visit our website.