Ht-instruments MPP300 Manual de usuario descargar pdf (Pagina 14)

MPP300

EN - 12

17. The display of SOLAR I-V will show the values of the

general electrical parameters of the system being

measured

In particular, in this screen:

Pdc = General dc power (sum of the string powers)

Pac = ac power (if single-phase) or sum of the ac powers (if

three-phase)

We recommend checking that the values of the electrical

parameters (Pnom, Pdc, Pac) and of the ac performance

(ac) are consistent with the system being measured (e.g.:

ac > 1 is not physically acceptable)

15/05/10 15:34:26

PRp - - -

Irr - - - W/m2

Pnom 3.500 kW

Tc - - - °C

Te - - - °C

Pdc 3.125 kW

Pac 2.960 kW

ndc - - -

nac



GO – start rec

Select

MPP

18. On SOLAR I-V, press key () to access the second

screen which contains the values of the output DC

parameters of the strings according to the number of DC

inputs set (see the User Manual of SOLAR I-V)

In particular, in this screen:

Vdcx = dc voltage of string x.

Idcx = dc current of string x.

Pdx = dc power of string x.

We recommend checking that the values of the electrical

parameters (Vdc, Idc, Pdc) are consistent with the system

being measured

15/05/10 15:34:26



Vdc1 460.1 kW

Vdc2 461.4 V

Vdc3 462.5 A

Idc1 2.25 A

Idc2 2.31 A

Idc3 2.21 A

Pdc1 1.035 kW

Pdc2 1.066 kW

Pdc3 1.024 kW



GO – start rec

Select

MPP

19. On SOLAR I-V, press key () to access the third screen

which contains the values of the electrical parameters on

the AC side of the inverter, consistently with the settings

made (see – SOLAR I-V user’s manual, single-phase,

three-phase 4 wires).

In particular, in this screen:

Vacxy = ac voltage between Phase and Neutral (if single-

phase) or between Phases x and y (if three-phase)

Iacx = ac current of phase x

Pacx = ac power of phase x

We recommend checking that the values of the electrical

parameters (Vac, Iac, Pac) are consistent with the system

being measured

15/05/10 15:34:26



Vac12 401.4 V

Vac23 401.1 V

Vac31 400.1 V

Iac1 4.26 A

Iac2 4.26 A

Iac3 4.27 A

Pac1 987 W

Pac2 986 W

Pac3 985 W



GO – start rec

Select

MPP

Example of a screen for

PV systems with three-

phase output

20. Keeping the three instruments near each other (max distance

approx. 1m), press the GO/STOP key on SOLAR I-V to start

testing. Consequently:

 The display of SOLAR I-V shows the message “Rec. start

waiting”

 The display of SOLAR-02 shows the message “HOLD” and

the time, expressed in seconds, remaining before the

recording is started

 On MPP300, the STATUS LED turns on green (not flashing)

15/05/10 15:34:26

PRp - - -

Irr - - - W/m2

Pnom 3.500 kW

Tc - - - °C

Te - - - °C

Pdc 3.125 kW

Pac 2.960 kW

ndc - - -

nac



Rec.Start Waiting

Select

MPP

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Ht-instruments MPP300 Manual de usuario Pagina 14

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