EL3020 | ABB | gas analyzer

Description

EL3020 | ABB | gas analyzer

In order to distinguish between short circuits and open circuits, many people have written some mnemonics for ABB EL3020. After memorizing these mnemonics, they can easily distinguish them. These mnemonics first focus on the analysis of circuits. First, measure the electric meters in series and parallel, and then disconnect them. One circuit is in series, and if there are branches in parallel, a short circuit will occur. If there are electrical appliances coexisting, the circuit fault will be locally short. Through these mnemonics, it can be known that short circuits mostly occur in parallel circuits, while open circuits mostly occur in series circuits. When determining whether there is a circuit break, a voltmeter can be used to check different nodes. If there is no indication, it is the same circuit break and can be repaired in a timely manner.

To correctly determine short circuit and open circuit in ABB EL3020, it is necessary to understand their correct definitions. Open circuit refers to the inability to form a circuit between two nodes, and whether it is open or not cannot be determined by the presence or absence of current. Only when a circuit cannot be formed can it be called a break, and a short circuit is when there is a section of such a circuit in the circuit, but there are several electrical appliances connected in series between two nodes, and no current flows through other electrical appliances. This electrical appliance is short circuited, and its appearance will not cause serious damage to the appliance, nor will it cause the appliance to be burned out like a break.

ABB EL3020 is a common fault in circuits, and short circuit is also a type of fault circuit. It poses a significant threat to the power supply and wiring, as the current flows back directly from the positive pole of the power supply to the negative pole without passing through the electrical appliance. And the circuit is a relatively serious fault circuit, which has a particularly significant impact on the circuit system. After the current flows out of the positive pole of the power supply, it cannot flow back to the negative pole, resulting in high temperature and combustion. When judging short circuits and open circuits, it is necessary to understand the circuit based on the existing conditions. If it is a series circuit, the possibility of a short circuit is almost zero, because after a short circuit occurs, the power supply will be burned out, and it is impossible for any electrical appliances to continue to be used or for lights to continue to be on.

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