Technical data

Dual 9-, 12-, and 20-Slot Power Supply
7-9
7
Table 7-4. 700 Watt DC Power Supply Specifications
DC Voltage: 36 Vdc to 72 Vdc
Isolation Voltage: 1500 Vac or DC equivalent minimum input to frame or as
required by IEC specification
Leakage Current: Not to exceed 3.0 mA @ 250 Vac 60 Hz
Power Factor: Minimum 0.98 with full load and nominal line.
Surges: Withstands surges of 20% for 1/2 cycle at nominal line.
Surge Withstand
Capability Test
The following power line transient pulse parameters, per
ANSI/IEEE C37.90.1-1974 des not adversely affect the power
supply’s operation.
Width: less than 200 microseconds
Risetime: 20 nanoseconds maximum
Rate: 120 transients per second
Phasing: any phase with respect to AC power
Amplitude: up to 2.5Kv with no component damage or system
interruption
Surge Voltages in
Low-Voltage AC
Power Circuits Test
The power supply is able to withstand a Category A “ringwave”
with the following parameters, per ANSI/IEEE C62.41-1980
with no effect on the power supply’s operation.
Waveform: 0.5 microseconds at 100 KHz
Current: 200 amps
Phasing: any phase with respect to AC power
Amplitude: up to 6Kv with no component damage or system
interruption.
Fast Transient Test The following power Fast transient pulse parameters, per
EN55101-4 does not adversely affect the power supply’s
operation.
Voltage, -/+ 4000 V
tBurst, 15 msec
fBurst, 2.5 KHz
tRep, 300 ms
Injection, Asynchronous, Coupling, On L1, L2 and E
Duration, 1 minute