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2. Remove the meter, loosen the set screw, and remove the retaining clip.
3. Insert the instrument into the instrument panel of the power distribution cabinet.
4. Insert the meter's clip and secure the set screw.
Note: LN is the auxiliary power supply, please connect the correct wiring according to the wiring diagram of the meter housing! The multifunctional power meter has a universal (AC/DC) switching power supply input interface. Unless otherwise specified, it is a standard product with a 220V (AC/DC) or 110V (AC/DC) power supply interface, and the meter's limit operating supply voltage. For AC/DC: 80-270V, please ensure that the supplied power is suitable for this series of products. The above prevents damage to the product.
A. It is recommended that a 1A fuse be installed on the side of the line of fire using AC power.
B. For areas with poor power quality, it is recommended that a surge suppressor be installed in the power circuit to prevent lightning strikes, as well as a fast burst suppressor. The product adopts the calculation method that is collected separately for each measurement channel to ensure that it is completely consistent and symmetrical when used. It has a variety of connection modes and is suitable for different types of loads.
Explanation:
A. Voltage input: The input voltage should not be higher than the rated input voltage of the product (100V or 400V). Otherwise, PT should be considered. A 1A fuse must be installed on the voltage input.
B. Current input: The standard rated input current is 5A, and an external CT should be used when it is greater than 5A. If other instruments are connected to the CT, the wiring should be connected in series. Before removing the current input connection of the product, you must disconnect the primary circuit of CT or short circuit the secondary circuit. It is recommended to use wiring strips. Do not connect CT directly to facilitate disassembly.
C. To ensure that the input voltage and current correspond, the phase sequence is consistent and the direction is consistent; otherwise, there will be numerical and symbolic errors! ! (power and energy)
D. The configuration of the instrument input network is determined based on the number of CTs in the system. In the case of 2 CTs, the three-phase, three-wire, two-element method is selected; in the case of 3 CTs, the three-phase, four-wire, and three-element methods are selected. The input network NET set in the instrument wiring and instrument programming should be consistent with the measured load wiring, otherwise it will cause the meter to measure the voltage or power is incorrect. Among them, in the three-phase three-wire, the voltage is measured and displayed as the line voltage; and in the three-phase four-wire, the voltage measurement shows the phase voltage.
1. On a fixed distribution cabinet, select a suitable location to open a mounting hole with a hole size.