Xantrex-technology 120 VAC/60 Manuel d'utilisateur télécharger pdf (Page 93)

OPERATION

 2001 Xantrex Technology, Inc.

5916 - 195th Street N. E.

Arlington, WA 98223

Telephone: 360/435-8826

Fax: 360/435-2229

www.traceengineering.com

SW Series Inverter/Charger

Part No. 2031-5

Rev. C: February 2001

Page

SELLING POWER - FROM A DC CHARGING SOURCE

The simplest and default operation of the SW Series Inverter/Charger in the SELL mode is to “sell” the

excess power from the charging source to the utility when the batteries are full. In this mode, the battery

voltage is held to the regulation level determined by the SET BATTERY SELL VOLTS DC setting. Since

the SET BATTERY SELL VOLTS DC setting is defaulted to the same value as the SET FLOAT VOLTS

DC setting, the inverter will sell the power from the charging source (wind, hydro or solar, etc.), but will

hold the battery at a charged level.

The regulation process can also be accomplished and allow the three stage charging (float, bulk and

absorption) of the batteries to occur each day by enabling the BULK CHARGE TRIGGER TIMER (15).

The batteries will be maintained at the SET FLOAT VOLTS DC setting until the SET START BULK TIME,

which will charge the batteries near the SET BULK VOLTS DC setting until the end of the ABSORPTION

TIME.

This operating mode offers the individual system owner with several advantages. The batteries would not

be cycled thereby increasing their life and the batteries would be fully charged in case of a power failure,

resulting in greater system efficiency.

Figure 27, Selling Power From A DC Charging Source; Hypothetical Time Of Day Operational History

Begin Day

00:00

Time

AC amps

20:00

End Day

23:59

DC Volts

13.0

Input

amps AC 00

{

AC amps from grid (+)

{

Set Start Bulk

time 20:00

Set Battery Sell

Volts DC 13.4

Float Volts

DC Setting

Battery Sell Volts

DC Setting

Bulk Volts

DC Setting

Bulk Charge Trigger Timer is

enabled (not the default setting)

Set Bulk Volts

DC 14.4

Charging from the DC

source (wind, hydro or

solar) has started

Absorption Time

Set Absorption

time h:m 02:00

Set Float

Volts DC 13.4

Charging from the DC

source (wind, hydro or

solar) has stopped

Sell to grid period

when the current from

the DC source is greater

than needed to maintain

the Float/Sell Volts DC

setting.

Set Max Sell

amps AC 30

Max Sell Amps

AC Setting

POSITIVE (+) = Inverter is drawing power from grid.

NEGATIVE (-) = Inverter is selling power to grid.

LEGEND

Information

Display/Settings

on Control Panel

Max Charge

Amps AC Setting

Set Max Charge

amps AC 30

AC amps to grid (-)

DC Volts

Battery

charging from

grid has

started

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Xantrex-technology 120 VAC/60 Manuel d'utilisateur Page 93

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