Collector
Main function:The collector can easily modify device's parameters locally / remotely and have reliable safety measures to prevent unauthorized personnel from setting parameters.
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STS three phase four wire electronic pre-paid electricity meter
Main function:metering function, parameter monitoring, data storage, display function, communication function, anti-electric theft function, pre-payment function
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Three-phase four-wire electronic prepaid energy meter
Main function:metering function, parameter monitoring, time-sharing metering, data storage, load curve, display function, communication function, anti-electric theft function
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Single-phase electronic prepaid energy meter
Main function:metering function, parameter monitoring, data storage, display function, load curve, communication function, anti-theft function, prepayment function
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STS single-phase electronic prepaid energy meter
Main function:The electricity meter mainly consists of current, voltage sampling, electric power measurement unit, microprocessor, magnetic retention relay and LCD liquid crystal display.Microprocessor measures active power, And to exchange data with TOKEN through the keyboard, to achieve various control functions.
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IC single-phase electronic prepaid energy meter
Main function:metering function, parameter monitoring, data storage, display function, load curve, communication function, anti-theft function, prepayment function
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Three-phase four-wire electronic prepaid energy meter
Main function:metering function, parameter monitoring, time-sharing metering, data storage, load curve, communication function, anti-electric theft function
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STS three phase four wire electronic pre-paid electricity meter
Main function:metering function, parameter monitoring, data storage, display function, communication function, anti-electric theft function, pre-payment function
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Three-phase meter power is mainly determined by the current specifications and field voltage of the three-phase meter. If it is a direct current meter, power P=I current *U voltage *3, Here we take a look at the three-phase meter can withstand how much power and how to choose the transformer multiple.
I. Three-phase electricity meter can withstand how much power
If the current specification of three-phase meter is 40A and the field voltage is 380V, then the power P=40A*380V*3=45600W, why should we multiply by a 3? Because this is a three-phase electricity meter,40A*380V is only the power of a phase line, so the three-phase power must be multiplied by 3. The three-phase direct electricity meter can achieve 100A at most.
So the maximum power of the direct-in meter can only withstand 114,000W of power. If the power is higher than that, the direct-in three-phase meter cannot meet the needs. We need a mutual inductance meter.
II. How to choose the transformer multiple
Mutual inductance meter does not limit the power, as long as the multiple of the transformer reaches, any amount of power can be used. For example, what should we do if we want to measure the power of 200,000 W? The current specification of general transformer type is 1.5(6)A, we can calculate the current first,I=P/U=200000W/380V≈ 53A, Then we use the transformer to change the current into the current within the measuring range of the meter. The current range of the mutual inductance meter is generally 1.5 to 6A. If the current is changed into 5A, You need 10 times the transformer, so to measure 200,000, you only need 10 times the transformer.
The above is all the content of this article, if you want to know more about electric energy meters, please pay attention to this website!
Location：Biaoji Building, Xiangzhou District, Zhuhai city, Guangdong Province
Mobile phone：13532292694（WeChat with number）
Mailbox：2049334114@qq.com
QQ：2049334114
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