10
INV2500-HS & INV5000-HS SERIES
OPERATING MANUAL
12.0 OPERATING INFORMATION
12.1 Input Voltage. These telecom inverters operate off a nominal 48VDC input
source which may be a battery or other DC source. The input voltage range is
42 to 56VDC. Input connections on the back of the INV5000-HS and
INVR2U-HS are to bus bars with no. 1/4-20 studs.
12.2 Output Voltage. The output voltage for an INV2500-HS is 115VAC at full
load, 120VAC at no load; for an INV5000-HS-230 it is 230VAC at full load,
240VAC at no load. See Figure 5(a). Frequency is 50 or 60Hz, ±0.1%. The
output voltage has total harmonic distortion of less than 2.0%. The load
current crest factor is 2.8 to 1, and surge capability is up to 300%. The output
will drive reactive loads with up to ±90
o
phase angle. The output connectors
are screw terminals on the back of the INV5000-HS or INVR2U-HS.
12.3 Output Power. Maximum output power for an INV2500-HS is 115VAC at
22A RMS giving a maximum of 2530 volt-amperes. For an INV5000-HS it is
230VAC at 22A RMS, giving a maximum of 5060 volt-amperes. Exceeding
these values may cause electronic shutdown of the output. Full output power
is produced at up to 50
o
C ambient temperature. Above this, output current
must be derated at 2.5%/
o
C. Maximum operating temperature is 70
o
C, at
which the output current must be derated by 50%.
12.4 Overload Characteristic. These inverters incorporate electronic shutdown
circuitry; shutdown takes place during an overload, before the output circuit
breaker trips. Figure 5 shows INV2500-HS output voltage and current wave-
forms for a full load step, sudden overload, and short circuit. Figure 6 shows
shutdown time versus output current for both the INV2500-HS and INV5000-
HS. Below is a table that shows the same data in a different format:
Table 12-1. Typical Load Current vs. Shutdown Time
As the table shows, the INV2500-HS and INV5000-HS are capable of han-
dling large output surge currents, specifically more than three times rated
output current for 1/4 second, more than twice rated output current for 1
second and more than 1.5 times rated output current for 10 seconds. If the
surge exceeds approximately 318% of rated output current or exceeds the
114-173% 10 sec.
173-223% 1 sec.
223-318% 0.25 sec.
PERCENT OF
RATED LOAD
SHUTDOWN
TIME
(23 Seiten)
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