What is a neutral cut? Why does a neutral cut occur? And what are the methods of protection against a neutral cut?
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What is a neutral break?
Electricity is transmitted to the consumer via line cables. The neutral conductor is a conductor used in the electrical network to return current from the consumer to the generating station.
A neutral break is an interruption that occurs in the conductor used to discharge the unbalanced load between phases to the neutral line, thereby helping to automatically balance the system.
What is the neutral line in an electrical power line and what is its function?
Electricity is transmitted to the consumer via line cables. The neutral conductor is used in the electrical network to return current from the consumer to the generating station. In a normal state, it acts as neutral protection and does not carry electrical voltage.
Electricity is transmitted from the generating station to the consumer via a three-phase network. This network consists of three conductors carrying the operating voltage, in addition to the neutral conductor and the grounding conductor. The voltage between each pair of operating conductors is 380V, and this voltage is called line voltage. The voltage between the operating conductor and the neutral is 220V, and this is called phase voltage.
With the help of the neutral line, the self-regulation of the load in the three-phase network also occurs. When there is an unbalanced load between the phases, the excess current is discharged to the neutral line, thereby automatically balancing the system. ENERJİTEM
Why does a neutral break occur?
The main causes of neutral breaks are:
Faults occurring in electrical networks.
Unbalanced load distribution.
Performing electrical installations without adhering to the necessary rules.
Old or faulty electrical installations in residential areas such as apartments and buildings.
Oxidation occurring over time in power transmission lines.
Mechanical damage, such as damage to power transmission lines.
Lack of maintenance of electrical networks.
What are the methods of protection against neutral breaks?
To protect against neutral breaks, it is essential to install a voltage relay. The voltage relay helps monitor voltage changes and disconnect the power supply when a serious fault occurs, protecting electrical devices from damage caused by high or low voltage due to a neutral break.
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