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38 Chapter 6 Specifications

Liebert APM Modular UPS User & Installation Manual

6.4 Electrical Characteristics (Input Rectifier)

Table 6-4 Rectifier AC input (mains)

Rated power (kVA) Unit 150

Rated AC input voltage

Vac 380/400/415 (3-phase and sharing neutral with the bypass input)

Input voltage tolerance

Vac 305 ~ 477; 304 ~ 208 (output derated below 70%)

Frequency

Hz 50/60 (tolerance: 40Hz ~ 70Hz)

Power factor kW/kVA, full load (half load) 0.99 (0.98)

Input power kVA rated

(maximum

) 30 ~ 150

Input current A rated

(maximum

) 60 ~ 300

Harmonic current distortion THDI% FL <3

Duration of progressive

power walk-in

10s to reach full ratd current (selectable 5s through 30s in

5-second intervals)

Note:

1. Rectifiers operate at any of the rated supply voltages and frequencies without further adjustment.

2. At 305V input mains the UPS maintains the specified output voltage at rated load without discharging a previously charged

battery.

3. IEC62040-3/EN50091-3: at rated load and input voltage 400V, battery charged.

4. IEC62040-3/EN50091-3: at rated load and input voltage 400V, battery charging at maximum rated power

6.5 Electrical Characteristics (Intermediate DC Circuit)

Table 6-5 Battery

Intermediate DC circuit

Rated power (kVA) Unit 30 60 90 120 150

Battery bus voltage

Vdc

Nominal: 432V (VRLA float charge is 540V), range: 400V ~ 616V

Nominal

216 (6cells x 36 12V battery block)

Maximum

240 (6cells x 40 12V battery block)

Number of lead-acid

cells

Minimum

180 (6cells x 30 12V battery block)

Float voltage V/cell(VRLA)

2.25V/cell (selectable from 2.2V/cell to 2.3V/cell)

Constant current and constant voltage charge mode

Temperature

compensation

mV//cl

-3.0 (selectable from 0 to -5.0 around 25°C or 30°C, or inhibit)

Ripple voltage

% V float

≤1

Ripple current

% C

≤5

Boost voltage

VRLA

2.35V/cell (selectable from 2.30V/cell to 2.40V/cell)

Constant current and constant voltage charge mode

Boost control

Float-boost current trigger 0.050C10 (selectable from 0.030 to 0.070)

Boost-float current trigger 0.010C10 (selectable from 0.005 to 0.025)

24hr safety time timeout (selectable from 8hr to 30hr)

Boost mode inhibit also selectable

EOD voltage

V/cell(VRLA)

1.63V/cell (selectable from 1.60V/cell to 1.750V/cell)

Automatic inverse EOD voltage × discharge current mode

(the EOD voltage increases at low discharge currents)

Battery charge

V/cell

2.4V/cell (selectable from 2.3V/cell to 2.4V/cell)

Constant current and constant voltage charge mode

Programmable automatic trigger or inhibit of boost mode

6 12 18 24 30

Battery

charging power

max current

(adjustable)

11 22 33 44 55

Note:

1. At low input voltage the UPS recharge capability increases with load decrease (up to the maximum capacity indicated).

2. Max currents listed are for EOD voltage of 1.67V/cell for 240 cells

1 2 ... 41 42 43 44 45 46 47 48 49

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