GE EPM 5200 Benutzerhandbuch

 

CHAPTER 5: OVERVIEW 

33 

a.  To access the set limit, press MAX/MIN/LIMITS 

• 

3 times for LM1  

• 

4 times for LM2 

 
 

In a three-phase power distribution system, normal phase shift between each line is 120

°. If the EPM 

5300P detects an abnormality, it displays a message of PH.  The EPM 5200P does not have this feature. 
 
VOLTAGE PHASE REVERSAL: If there is an incorrect connection, such as mistaking line A for line B, a 
PH message appears.  The correct sequence is a-b-c. 
 
VOLTAGE PHASE IMBALANCE LIMIT: This is detected using the phase imbalance limit in the 
Programming Mode.  The phase imbalance is expressed as a percentage, with 0% indicating a 120

° 

phase shift between each line.  A PH message appears if the limit is exceeded. 

 

 

 

 

 

Step 1: 

a. Press and hold down 

PHASE/NEXT. While 

holding down 

PHASE/NEXT, press 

AMPS to access the 

display.  

 

!

(PH indicates both 

Voltage Phase 

Reversals and Voltage 

Phase Imbalances.)   

Step 2: 

a. Press PHASE/NEXT 

to select zero. 

!

 This display 

indicates a Voltage 

Phase Reversal. 

!

 This display 

indicates a Voltage 

Phase Imbalance.