Samlexpower PST-1000-12 Owner's manual - Section 2 |
SAMLEX AMERICA INC. | 7
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BOEDBQBDJUBODFTUIFOFUReactance (X) will be equal to the difference between the
values of the inductive and capacitive reactances. The net Reactance (X) will be inductive
if X
L
X
C
and capacitive if X
C
X
L
.
Impedance, Z: It is the vectorial sum of Resistance and Reactance vectors in a circuit.
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JTDPOTVNFEJOUIFSFTJTUJWFFMFNFOUTPGUIFMPBE"MPBEXJMMSFRVJSFBEEJUJPOBM3FBDUJWF
Power for powering the inductive and capacitive elements. The effective power required
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Reactive Power (Q), VAR: Is denoted as “QwBOEUIFVOJUJTVAR0WFSBDZDMFUIJTQPXFS
is alternatively stored and returned by the inductive and capacitive elements of the load.
It is not consumed by the inductive and capacitive elements in the load but a certain
WBMVFUSBWFMTGSPNUIF"$TPVSDFUPUIFTFFMFNFOUTJOUIFIBMGDZDMFPGUIFTJOVTPJEBM
WPMUBHF1PTJUJWFWBMVFBOEUIFTBNFWBMVFJTSFUVSOFECBDLUPUIF"$TPVSDFJOUIF
IBMGDZDMFPGUIFTJOVTPJEBMWPMUBHF/FHBUJWFWBMVF)FODFXIFOBWFSBHFEPWFSBTQBO
PGPOFDZDMFUIFOFUWBMVFPGUIJTQPXFSJT)PXFWFSPOBOJOTUBOUBOFPVTCBTJTUIJT
QPXFSIBTUPCFQSPWJEFECZUIF"$TPVSDFHence, the inverter, AC wiring and over cur-
rent protection devices have to be sized based on the combined effect of the Active and
Reactive Powers that is called the Apparent Power.
Apparent (S) Power, VA:5IJTQPXFSEFOPUFECZ4JTUIFWFDUPSJBMTVNPGUIF"DUJWF
1PXFSJO8BUUTBOEUIF3FBDUJWF1PXFSJOi7"3w*ONBHOJUVEFJUJTFRVBMUPUIF3.4
WBMVFPGWPMUBHFi7w9UIF3.4WBMVFPGDVSSFOUi"w5IF6OJUJT7"Please note that
Apparent Power VA is more than the Active Power in Watts. Hence, the inverter, AC wir-
ing and over current protection devices have to be sized based on the Apparent Power.
Power Factor, (PF):*UJTEFOPUFECZi1'wBOEJTFRVBMUPUIFSBUJPPGUIF"DUJWF1PXFS
1JO8BUUTUPUIF"QQBSFOU1PXFS4JO7"5IFNBYJNVNWBMVFJTGPSSFTJTUJWFUZQFT
PGMPBETXIFSFUIF"DUJWF1PXFS1JO8BUUTUIF"QQBSFOU1PXFS4JO7"*UJTGPS
QVSFMZJOEVDUJWFPSQVSFMZDBQBDJUJWFMPBET1SBDUJDBMMZUIFMPBETXJMMCFBDPNCJOBUJPOPG
SFTJTUJWFJOEVDUJWFBOEDBQBDJUJWFFMFNFOUTBOEIFODFJUTWBMVFXJMMCF/PSNBMMZ
JUSBOHFTGSPNUP
Load: Electrical appliance or device to which an electrical voltage is fed.
Linear Load: "MPBEUIBUESBXTTJOVTPJEBMDVSSFOUXIFOBTJOVTPJEBMWPMUBHFJTGFEUPJU
&YBNQMFTBSFJODBOEFTDFOUMBNQIFBUFSFMFDUSJDNPUPSFUD
Non-Linear Load:"MPBEUIBUEPFTOPUESBXBTJOVTPJEBMDVSSFOUXIFOBTJOVTPJEBMWPMU-
BHFJTGFEUPJU'PSFYBNQMFOPOQPXFSGBDUPSDPSSFDUFE4XJUDIFE.PEF1PXFS4VQQMJFT
4.14VTFEJODPNQVUFSTBVEJPWJEFPFRVJQNFOUCBUUFSZDIBSHFSTFUD
Resistive Load:"EFWJDFPSBQQMJBODFUIBUDPOTJTUTPGQVSFSFTJTUBODFMJLFåMBNFOU
MBNQTDPPLUPQTUPBTUFSDPGGFFNBLFSFUDBOEESBXTPOMZ"DUJWF1PXFS8BUUTGSPN