C H A P T E R 10

SPECIFICATIONS

This section provides the following specifications for the Powerware

9170 models:

￿Electrical input and output

￿Isolation

￿Model specifications

￿Environmental and safety

￿Battery

￿Weights and dimensions

Table 11. Electrical Input and Output

Nominal Input Voltage

208￿240 Vac or 100/200, 110/220, 120/208, 120/240, 127/220 Vac

 

 

Input Voltage Range

176￿276 Vac*

 

 

Nominal Output Voltage

208￿240 Vac or 100/200, 110/220, 120/208, 120/240, 127/220 Vac

 

 

Nominal Frequency

Online: 50/60 Hz auto-sensing; output frequency tracks input frequency to

 

selectable limit (±0.1 to ±5.0 Hz; ±3.0 Hz default); switches to battery

 

operation outside this tolerance

 

On battery: 50 Hz or 60 Hz ±0.1 Hz.

 

 

Regulation

±3% load regulation (under any line, load, or battery condition)

 

 

Voltage Waveform

Sine wave; <3% THD at rated linear loads, computer-grade power

 

 

Overload Capability

150% for 10 seconds; 300% for 12 cycles

 

 

DC Input Protection

DC fuse and battery charger overvoltage limit network

 

 

Output Protection

Microprocessor-sensed overvoltage and overcurrent, with fuse backup

 

 

Efficiency in Double-Conversion mode

>88%

 

 

Efficiency in Double-Conversion mode

>84%

(with Isolated Output)

 

 

 

Efficiency in Bypass mode (with

>96%

Isolated Output)

 

 

 

*176￿250 Vac for universal power modules producing 208 Vac nominal output voltage.

Powerware® 9170 User's Guide ￿ LTM-1344 B Uncontrolled Copy

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