Voltage is also known as the potential difference between two points, so the voltmeter is always connected in parallel to the circuit (see image 2). To influence the circuit as little as possible, the input impedance of the voltmeter has to be very high. The typical input impedance of the...
Z = impedance of the load (ohms, Ω) The impedance in an AC circuit can be regarded as complex resistance. The impedance acts as a frequency dependent resistor where the resistance is a function of the frequency of the sinusoidal excitation. ...
A switch circuit, coupled between the power line and load, provides an electrical current path between the power line and load when the voltage detection circuit detects that all of the interterminal voltages are less than a predetermined maximum voltage and the interterminal voltage between the ...
Knowledge popularization Selection Tips for Voltage Stabilizers A voltage stabilizer is a power supply circuit or power supply device that can automatically adjust the output voltage. It can stabilize the power supply voltage that fluctuates greatly or does not meet the requirements of electrical equi...
3-phase automatic high-precision AC regulator uses intellectual logic regulation method to quickly and stably regulate range of voltage based on voltage amplitude and load characteristic.It obtain the best regulation effect with logic pulse circuit control.It can ensure precise outp...
A simple voltage regulator circuit constructed from discrete components. A fluctuating supply is modeled as 20V DC plus a 1V sinusoidal variation. The zener diode D1 sets the non-inverting input of the op-amp to 3.2V, and hence as the op-amp has a large gain, the op-amp inverting input...
PROBLEM TO BE SOLVED: To provide a calculation method of a voltage/power of an AC feeding circuit capable of calculating the voltage/power at each node of the feeding circuit in a state including a circuit constant of a three-phase power line at the receiving power side of the AC feeding...
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Rated voltage of auxiliary circuit (V) AC220,380(400)DC110,220 Rated frequency (Hz) 50(60) Rated insulation voltage (V) 660(1000) Rated current (A) horizontal bus ≤4000 Vertical busbar (MCC) 1000 Rated short-time tolerable current of bus (kA/1 s) 50, 80 Rated p...