Need.
The transformer needs to be connected to a neutral wire. The neutral wire of a transformer is an indispensable part of the power supply system, which serves to guide the leakage current in the circuit back to the power supply and protect personal safety. If the transformer is not connected to the neutral wire, it will cause power failure, and all leakage switches will not be able to detect leakage current, rendering the protection function ineffective.
The role and importance of transformer neutral wire
Protecting personal safety: The neutral wire guides the leakage current back to the power supply, protecting personal safety and preventing electric shock accidents.
Ensure the normal operation of the equipment: In the case of three-phase imbalance, the neutral wire can balance the current and ensure the normal operation of the equipment.
Compliance with electrical safety standards: According to electrical safety standards, the neutral wire of transformers must be grounded to ensure the normal operation and safety of electrical equipment.
Connection requirements and precautions for transformer neutral wire
Connect to neutral point: The neutral wire should be connected to the neutral point of the transformer output voltage to ensure that the current can flow back correctly.
Avoid cross interference: During installation and use, the neutral wire should be routed separately from the power cable and other cables to avoid cross interference.
It is strictly prohibited to connect the equipment casing: The neutral wire is strictly prohibited from being connected to the metal casing or ground wire of the equipment to prevent electrical accidents.
