Page 117 - Alternative Energy Systems in Building Design

SOLAR POWER SYSTEM CONFIGURATIONS 93

SURGE SPIKE WITH DELTA SURGE
HARMFUL ARRESTOR/SUPRESSOR
SURGE SPIKE
CLAMPING (SUPRESSION)
VOLTAGE

LINE
LINE VOLTAGE
VOLTAGE

(b)
(a)

SURGE SPIKE WITH
DELTA SURGE CAPACITOR

LINE
VOLTAGE

(c)
Figure 3.44 (a) Effect of a lighting surge spike. (b) Effect of lightning surge-
spike clamping. (c) Effect of lightning surge-spike suppression.

performance parameters. The central monitoring station consists of a PC-type com-
puter that retrieves operational parameters from a group of solar power inverters by
means of an RS-232 interface, a power-line carrier, or wireless communication
systems. On receipt of performance parameters, a supervisory software program
processes the information and provides data in display or print format. Supervisory
data obtained from the file also can be accessed from distant locations through Web
networking.

AC

TRANSFORMER
RECTIFIER
+
–
DC
Figure 3.45 Diagram of a lightning surge
arrestor in a rectifier circuit.