AMETEK Programmable Power
BPS Series User Manual M440077-01 Rev A
40
The input power cables and protective circuit breaker used must be large enough to handle the input
current and input voltage of the power source and must conform to national and local electrical codes.
Consult a qualified electrician prior to installation.
Error! Reference source not found.
shows the size
of the cables that may be used per each BPS cabinet. Note that wires must be sized to accommodate the
worst-case maximum current that may occur under low line conditions. Local electrical codes may also
require different wire types and sizes. These ratings should also be used when selecting a circuit breaker
or equivalent disconnect device.
Cable lengths must not exceed twenty-five (25) feet. For lengths greater than 25 feet, calculate the
voltage drop from the following formula:
2 X DISTANCE X CABLE RESISTANCE PER FT. X CURRENT = VOLT DROP
Table 4-1: Suggested Input Wiring Sizes for each RS Cabinet *
Nominal Line
Voltage
Load Current
@ low line
Wire Gauge (US)
Circular Mils
(Kcmils)
Metric (mm2)
480 V
75 A
RMS
2 AWG
66.4
33.6
400 V
90 A
RMS
1 AWG
83.7
42.4
230 V
157 A
RMS
3/0 AWG
168.0
85.0
208 V
175 A
RMS
4/0 AWG
212.0
107.0
* Data shown for use of high temperature (100° C) rated stranded copper wire, unbundled and not installed in
conduit. Adjust wire gauge for Aluminum wire type. Always consult the National Electrical Code and local code
regulations for proper rating and size of wire cabling prior to installation.
CAUTION: Capacitors in the power source may hold a hazardous electrical charge even if the
power source has been disconnected from the mains supply. Allow capacitors to discharge to a
safe voltage before touching exposed pins of mains supply connectors. Power modules need at
least 15 minutes to discharge to safe levels before they can be removed.
4.5
AC On/Off Circuit Breaker on BPS Series front panel.
It is important to understand the purpose and operation of the On/Off circuit breaker of the BPS Series
located on the lower left side of the front panel. This is a 2.5A rated breaker that is used to engage and
protect the two LV Power supplies of the BPS chassis only. The LV Power supplies provide DC bias
power to the entire BPS system. The AC input power is routed through a set of six AC line fuses (F1 –
F6) located in the lower rear left bottom corner of the BPS. (See Figure 4-2 for fuse locations). These
fuses protect the six BPS amplifiers and the AC input transformer from excessive input currents. The AC
input power is connected to the input transformer through a large three-pole contactor. Removing AC
power to the LV Power Supply by opening the front panel circuit breaker (moving the lever to the down
(OFF) position) will cause this contactor to lose its coil voltage and will result in it opening and
disconnecting the input transformer and amplifier from AC mains input.
Note:
If any BPS system failure has occurred on any part of the BPS system, AC input power must
be removed immediately and not restored until the system has been inspected by a qualifier
service technician. Continued attempts to restart system can lead to further damage. Always
turn off the On/Off Circuit breaker before re-applying AC input power.
Содержание BPS Series
Страница 1: ...M440077 01 Rev A www programmablepower com BPS Series AC Power Source User Manual...
Страница 26: ...AMETEK Programmable Power BPS Series User Manual M440077 01 Rev A 26...
Страница 36: ...AMETEK Programmable Power BPS Series User Manual M440077 01 Rev A 36 Figure 4 1 BPS75 BPS90 Power Source Photo...
Страница 111: ...User Manual AMETEK Programmable Power BPS Series 111 Figure 6 2 BPS90 Series Detailed Block Diagram...
Страница 112: ...User Manual AMETEK Programmable Power BPS Series 112 Figure 6 3 Power Module Detailed Block Diagram...
Страница 114: ...User Manual AMETEK Programmable Power BPS Series 114 Figure 6 4 Power Module Layout...
