Off Grid Solar Inverter With MPPT

HSI series off grid solar inverter with MPPT 

    Voltmeter structure

    A voltmeter is a large resistor, ideally considered an open circuit. A voltmeter (parallel with other electrical appliances) and electrical appliances are connected in parallel in the parallel circuit. If there are no other electrical appliances in the main circuit, it can be considered that the power supply voltage is measured (because all electrical appliances on the parallel circuit enjoy the power supply voltage. ); if other electrical appliances are connected to the main circuit, then this electrical appliance shares part of the power supply voltage, and the voltmeter can only measure part of the voltage (which electrical appliance is connected to is the voltage of which electrical appliance).

   It should be known that there is a magnet and a wire coil in the voltmeter. After passing the current, the coil will generate a magnetic field, so that the coil will rotate under the action of the magnet after it is energized. This is the head part of the ammeter and the voltmeter.

  Voltmeter technical parameters

1. Frequency response range 10Hz—10MHz, basic accuracy ±2%

2. Input resistance, capacitance, overload voltage 1mV—300mV: ≥8MΩ≤40pF≤100V300mV—300V≥8MΩ≤20pF≤600V

3. DC output voltage -1V (every 10 range)

4. General technical indicators

5. Working temperature, humidity 0℃—40℃≤90%RH

6. Power requirements 198V—242VAC475Hz—52.5Hz

7. Power consumption≤6VA

8. Size (W&TImes;H&TImes;D) 240mm&TImes;140mm&TImes;280mm

9. The weight is about 2.5kg

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