Ht-instruments PVCHECK Manual de usuario descargar pdf (Pagina 16)

PVCHECK

EN - 14

5.2.2. System parameters

1. Position the cursor onto EFF by using the arrow keys

(,) and confirm with ENTER. The display shows the

values of the output electrical parameters of the

photovoltaic generator.

15/05/12 15:34:26

Irr - - - W/m2

Pnom 3.500 kW

Tc - - - °C

Te - - - °C

Pdc 0.0 kW

Vdc 0.000 V

Idc 0.0 A

ndc - - -

GO to Start

Selection

EFF

2. Press the ENTER key. The instrument shows the

following options: System parameters and Instrument

settings

3. Use the arrow keys (,) to select “System

Parameters” and confirm with ENTER. The instrument

shows the following screen:

15/05/12 15:34:26

Irr - - - W/m2

Pnom 3.500 kW

Tc - - - °C

Te - - - °C

Pdc 0.0 kW

Vdc 0.000 V

Idc 0.0 A

ndc - - -

System parameters

Instrument settings

Selection

EFF

4. By using the arrow keys ( , ) it is possible to set:

 Pmax  maximum total rated power of PV installation

expressed in kW

 Range  coefficient of power variation with

temperature, characteristic parameter of PV modules

(range: -1.00  -0.01%/C)

 NOCT  rated operating temperature of the cell,

characteristic parameter of PV modules (typically in

the following range: 42  48°C)

 Te, Tc  setting of default values of environmental

and (Te) and PV module (Tc) temperatures. These

values are taken into consideration by the instrument

only when no auxiliary probe is connected to the

remote unit SOLAR-02 (range: Te = 0°C  80°C; Tc =

0°C  100°C)

 nDC Lim  minimum limit of DC efficiency (default

value: 0.85 , range: 0.01  1.15)

 Corr. Type  Setting of the compensation

relationship on the calculation of Pdc power and the

maximization of DC efficiency (see § 5.2.3).

15/05/12 15:34:26

Pmax: :  3.500 kW

Gamma

-0.45

%/°C

NOCT

: 45 °C

: 40 °C

: 45 °C

Lim: : 0.85

orr.T

T. Env.

SAVE to Store

EFF

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Ht-instruments PVCHECK Manual de usuario Pagina 16

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