Single Phase Inverter With Solar Energy

HI series :single phase inverter with solar energy

We can see that the maximum allowable AC and DC voltages are the same, but the maximum clamping voltage above we can see that the currents of KD10 and KD20 are 25A and 100A, which means that we are on the same circuit, using the same level of During lightning surge, the clamping voltage of KD10 is higher than that of KD20.

Judging from these data, if we fail the lightning strike experiment, we can choose a larger varistor, so that our products are much safer. Sometimes a varistor of the same type can be connected in parallel to reduce the clamping voltage, so as to protect our products well.

Varistors are very common in power supplies, and their applications are generally in the input part of switching power supplies to prevent lightning surges.

1. The general application is to connect a varistor across the L-phase and N-phase of the input terminal.

2. Ceramic discharge tubes may also be placed on common mode inductors.

3. The L-phase and the N-phase are relatively ground with a pressure-sensitive series ceramic discharge tube.

The functions of these circuits are all used for lightning protection, and the circuits are very common. However, in the process of selecting a varistor, many engineers say that it is experience, and they know very little about some parameters on the varistor.

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