CIRCUTOR computer SMART III-Fast Series - Manual (Page 25)

relatedsideeffects(conductoroverload,circuitbreakersandmachines,phaseunbalances,
interferencesinelectronicunits,RCCBtrips,etc�)�
Thelevelofharmonicsisusuallymeasuredwiththetotalharmonicdistortionrate(THD),which
istheratio,usuallyasa%,oftheRMSvalueoftheharmoniccontentandthevalueofthefun-
damentalcomponent�
4�2�-MEASUREMENTPARAMETERS
Theunitdisplaysthefollowingelectricalparameters:
4�2�1� Connection type: 3U �3C
Table 3: Computer SMART III FAST measurement parameters
(3U �3C
connection)
Parameter Units Phases
L1-L2-L3
N
Total
III
Max (1) Min (2)
Phase-neutralvoltage V    
Phase-phasevoltage V    
Current A    
Leakagecurrent mA   
Frequency Hz  (L1)  
ActivePower M/kW    
ApparentPower M/kVA    
TotalReactivePower M/kvar    
InductiveReactivePower M/kvarL    
CapacitiveReactivePower M/kvarC    
Powerfactor PF    
Cosφ φ    
VoltageTHD% %THDV  
CurrentTHD% %THDA  
HarmonicBreakdown-Voltage
(uptothe17thharmonic)
harmV  
HarmonicBreakdown-Current
(uptothe17thharmonic)
harmA  
Activeenergy M/kWh 
InductiveReactiveEnergy M/kvarLh 
CapacitiveReactiveEnergy M/kvarCh 
Apparent energy M/kVAh 
Temperature ºC 
No�ofoperations x1000 
Totalactivatedpower % 
(1) Displaysthemaximumvalue�
(2) Displaystheminimumvalue�
25 Instruction Manual
Computer SMART III FAST