The EV charger is a precision device. If the EV DC charging voltage is not selected correctly, there will be many serious problems. When shopping for an electric car charger, what voltage data do you need to know?
Τρεις από τις πιο κρίσιμες ηλεκτρικές παραμέτρους είναι η τάση γραμμής, τάση φάσης, και μέγιστη τάση. Και οι δύο είναι έννοιες που χρησιμοποιούνται συνήθως σε συστήματα ισχύος. Μπορείτε να μιλήσετε με την τοπική αντιπροσωπεία δικτύου για να μάθετε. Παρέχουμε τους αντίστοιχους ορισμούς τους και τονίζουμε τη σημασία τους παρακάτω.
Τάση γραμμής
Τάση γραμμής: Η τάση γραμμής είναι η τάση μεταξύ οποιωνδήποτε δύο φάσεων, που συνήθως αναφέρουμε ως τάση φάσης προς φάση.
Σε τριφασικό σύστημα AC, υπάρχουν τρεις γραμμές φάσης που αντιπροσωπεύουν τρεις φάσεις. Η τάση μεταξύ τους είναι η τάση γραμμής. The voltages between phase A and phase B, between phase B and phase C, and between phase C and phase A are all line voltages. The magnitude of line voltage depends on the level of system voltage. Common voltage levels are 380V, 660V.
Phase Voltage
Phase Voltage: phase voltage is the voltage between the phase line and the neutral point. In layman’s terms, this is the voltage between what we often refer to as the fire wire and the zero wire. It is usually the voltage of household electricity.
What is the relationship between them? The sum of the vectors between the line voltages UAB, UBC, and UCA in the star connection forms a positive triangle. Their angle is 120 degrees. According to trigonometry, the magnitude of the line voltage is three times the root of the phase voltage.
Maximum Voltage
Maximum Voltage: The maximum voltage of an EV DC charging is the maximum voltage value it can output.
This parameter is crucial to ensure the compatibility of the charger with electric vehicles. If you are purchasing a charger, these electrical parameters are the first prerequisite that must be considered. This is because different countries and regions may have different voltage standards and regulations. The electrical parameters of the charger must match the voltage provided by the local grid.
The Practical Significance of EV DC Charging Voltage
In power systems, the selection of line and phase voltages directly affects the operational performance and safety of electrical equipment.
If the rated voltage of the EV DC charger does not match the actual voltage, it may lead to equipment damage or unstable operation. Therefore, when making the selection and configuration of electrical equipment, the appropriate line and phase voltages must be determined according to the voltage rating of the system and the requirements of the equipment.
EV DC Charging Voltage Summary
Local electrical system values are common knowledge to electrical engineers. If you don’t know them, you can just go to your local electrical department and ask. They will all tell you directly. It is not a secret.
I will continue to popularize EV charger frequencies and such in the future. Welcome to stay tuned to our TKT EV charging solution.
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