Why does the smart meter alarm light keep flashing?

There are many situations in which the alarm light of the electric meter flashes. Since what you said is not too detailed, I will send you the corresponding error solution, hoping to help you. In addition, it is not recommended to handle the problem yourself, and inform the power supply department in time if there is any problem.

1. Wiring error alarm

Inverse phase sequence alarm; The alarm light of the electric meter is on or flashing, and the reverse phase sequence will be displayed on the screen of the electric meter.

solution: after power failure, give an alarm for any two of the three phases of A/B/C of incoming line power supply (note: the indicator light of A/B/C three-phase power supply of DTS343-3 meter flashes at the same time, indicating the reverse phase sequence)

alarm for missing phase: the alarm light of the meter is on or flashing, and Ua Ub Uc appears missing on the screen of the meter.

solution: just turn on the power supply of the missing phase. (Note: the A/B/C three-phase power indicator light of DTS343-3 electric meter is on for a long time, indicating that the phase is missing)

Loss of current alarm: the alarm light of the electric meter is on for a long time or flashes, and Ia Ib Ic is missing on the screen of the electric meter.

solution: just turn on the current of the missing phase.

current reverse alarm: the alarm light of electric meter is always on or flashing, and -Ia -Ib -Ic is missing on the screen of multifunctional/intelligent electric meter.

Solution: the current line with-sign can be switched

2. Early warning in normal use

Overvoltage alarm: the alarm light of electric meter is always on or flashing, and Ua Ub Uc flashes on the screen of electric meter.

solution: connect it to the rated voltage on the nameplate.

over-current alarm: the alarm light of the electric meter is on or flashing, and the Ia Ib Ic flashes on the screen of the electric meter.

solution: reduce the load or a more suitable current transformer.

under-voltage alarm: the alarm light of the electric meter is on or flashing, and Ua Ub Uc flashes on the screen of the electric meter.

solution: check whether the connector is loose, short circuit and leakage current; The connection conforms to the rated voltage on the nameplate.

under-current alarm: the alarm light of the electric meter is on or flashing, and the Ia Ib Ic flashes on the screen of the electric meter.

solution: check whether there is looseness or virtual connection on the line connector, distribute the load reasonably and replace the appropriate current transformer.

current imbalance alarm: the alarm light of the electric meter is always on or flashing, and Ia Ib Ic flashes on the screen of the electric meter.

solution: distribute the load on the three-phase power supply reasonably, and strive to achieve the relative balance of the load on each phase power supply.

Trouble shooting of the electric energy meter alarm lamp flashing and displaying reverse phase sequence.