Factory secondary low-voltage distribution electrical panel wiring diagram

The BSL is illustrated in a low-voltage distribution panel wiring diagram. It consists of three main components: the voltage measuring circuit, secondary circuit protection, and the energy metering circuit. (1) The voltage measuring circuit includes a voltage switch (SA) and a voltmeter (PV) to continuously monitor the operational status of the three-phase power supply, ensuring it meets the voltage requirements for the load. (2) The secondary protection circuit features normally open contacts that provide closing instruction signals via a red indicator light (HLt) and opening indication signals through a green light (HLG), along with limiting resistors (R) and other components. This circuit facilitates the monitoring and signaling of circuit status. During operation, if an overload or voltage loss occurs, the voltage loss activates the release coil (FV), which works with the load switch (QF) to promptly disconnect the line, ensuring the safety of the wiring, equipment, and personnel. (3) The energy metering loop circuit includes a three-phase active energy meter (PJ), three current transformers (TA1-TA3), and three current meters (PA). This energy consumption metering system, utilizing current transformers and ammeters, constitutes a current measuring circuit that monitors whether the circuit current is operating normally.

The BSL low-voltage distribution panel wiring diagram represents a critical system for ensuring reliable electrical distribution and safety. The voltage measuring circuit is essential for real-time monitoring of the three-phase power supply, which is crucial for maintaining the operational integrity of connected loads. The inclusion of the voltage switch (SA) allows for manual intervention when necessary, while the voltmeter (PV) provides a visual indication of voltage levels.

The secondary protection circuit plays a vital role in safeguarding the electrical system. The normally open contacts serve as a mechanism for signaling the operational status of the circuit. The red indicator light (HLt) activates when the circuit is closed, indicating normal operation, while the green light (HLG) signals when the circuit is open. The limiting resistor (R) is included to prevent excessive current from damaging the circuit components. This protection mechanism is crucial for preventing overloads, which could result in equipment failure or hazardous conditions.

In the event of an overload or voltage loss, the release coil (FV) is energized, triggering the load switch (QF) to disconnect the circuit. This automatic disconnection is a crucial safety feature that protects both the electrical equipment and personnel from potential hazards associated with electrical faults.

The energy metering loop circuit is designed to accurately measure the energy consumption of the system. The three-phase active energy meter (PJ) works in conjunction with the current transformers (TA1-TA3) to provide precise measurements of current flow. The current meters (PA) further enhance monitoring capabilities, allowing for real-time assessment of energy consumption. This data is essential for energy management and optimizing the efficiency of the electrical system.

Overall, the BSL wiring diagram illustrates a comprehensive approach to low-voltage distribution, integrating monitoring, protection, and metering functionalities to ensure safe and efficient operation of electrical systems. BSL is shown in low-voltage distribution panel wiring diagram. It consists of three parts, namely, the voltage measuring circuit, secondary circuit protection and energy meteri ng circuit. (1) using the voltage measuring circuit voltage switch SA and a voltmeter PV. Any time to monitor whether the three-phase power supply is operating smoothly, to meet the requirements required by the load voltage. (2) secondary protection circuit normally open contact, closing instruction signal red HLt, opening indication signal the green light HLG, limiting resistor R and the like.

By closing the line, opening the correct signal deaf culture, clear circuit status. Electrical equipment and wiring during operation, the time is now overload or loss of voltage, the voltage loss through the release coil energized Yan release FV and load switch QF constituted promptly cut off the line, ensure security lines, equipment and personal safety base. (3) energy metering loop circuit includes a three-phase energy metering active energy meter PJ and three current transformers TA1-TA3 and three current meter PA.

Use energy consumption metering system attack case, the current transformer and ammeter constitute a current measuring circuit, with l put line monitoring circuit current is normal or not,