How To Clear The Reverse Phase Sequence Alarm Of The Electric Meter

The reverse phase sequence of the electric meter refers to the connected three-phase voltage or current signal line, whose phase sequence is inconsistent with the standard ABC three-phase marked on the terminal of the electric meter. In this case, it does not affect the meter's electricity consumption.

Reverse phase sequence alarms need to be checked: ①Is the power supply's incoming phase sequence reversed; ②Whether the U, V, and W voltage lines entering the meter are reversed, if it is reversed, it belongs to the voltage reverse phase sequence;

Common code display of electric meter failure:

Meter display code: FF.FF.FF.FE.51

Meter display content: Err-51

Note: Indicates that the meter is overloaded (refer to Note 2)

Meter display code: FF.FF.FF.FE.52

Meter display content: Err-52

Note: Indicates that the current of the meter is seriously unbalanced

Meter display code: FF.FF.FF.FE.53

Meter display content: Err-53

Note: Indicates that the meter is overvoltage

Meter display code: FF.FF.FF.FE.54

Meter display content: Err-54

Note: Indicates that the power factor of the meter exceeds the limit

Meter display code: FF.FF.FF.FE.55

Meter display content: Err-55

Note: Indicates the alarm event of excessive active power demand of the electric meter

Meter display code: FF.FF.FF.FE.56

Meter display content: Err-56

Note: Indicates that the direction of active energy of the meter changes (except for two-way metering)

Mother Company: Guangdong Super Telecom Co., Ltd. (Stock No. SH.603322)

Business Type: ISO 9001:2008 and ISO 14001:2004 certified Manufacturer

Main Products: Telecom SCADA; Energy Meter; RTU; Cabinet air conditioner; CRAC

Total Annual Revenue: US$ 14 Million-US$20 Million

Main Market: Asia, South America, Europe

Location: Chengdu, China (Panda’s homeland)

Year Established: 2010

R&D Achieves: 16 product patents; 6 software copyrights

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