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LIVEFRONT - TYPE ATPSI/II DEADFRONT - TYPE ATPSE 15KV 25KV FP AUTOMATIC-TRANSFER PADMOUNTED SWITCHGEAR
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Automatic-
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Padmounted Switchgear
LIVEFRONT - TYPE ATPSI/II
DEADFRONT - TYPE ATPSE
15KV 25KV
FP AUTOMATIC-TRANSFER PADMOUNTED SWITCHGEAR
Figure 1
Exterior view of FP Automatic-Transfer, Padmounted Switchgear
ATPSI/II-9 showing the control compartment on each side. The
control compartments contain the FP TX300 Automatic Transfer
Microprocessor and the FP Switch Operators. The automatic transfer
system provides the customer with two independent power sources
to assure service continuity for critical loads. The FP Deadfront
Automatic-Transfer Padmounted Switchger Type ATPSE is configured
in a similar manner. For views of switch and fuse compartments for
FP Livefront Padmounted Switchgear refer to page 7 and for FP
Deadfront Padmount Switchgear refer to pages 26 and 27.
Federal Pacific (FP) of Bristol, Virginia offers Livefront and Deadfront
Automatic Source Transfer Padmounted Switchgear for those
applications where alternate sources of power are essential for
continued operation of critical loads. This switchgear features the
FP Touch Screen 300 (TS300) Automatic Transfer Micro-Processor
Control (ATMPC) that monitors system conditions. The ATMPC
automatically initiates transfer to an alternate power source if
voltage on the preferred source reduces below a preset level. FP
stored-energy switch operators actuate opening and closing of the
FP Auto-jet
®
II load interrupter switches.
FP automatic transfer padmounted switchgear provides automatic
two-way source transfer with the ability to connect either of two
utility sources (or a utility source and a standby generator) to the
switchgear bus. In automatic transfer switchgear, one incoming
line switch is closed (preferred source) and the other incoming line
switch is open (alternate source).
The FP TS300 monitors the condition of both power sources and
initiates automatic switching when preferred source voltage drops
below a preset level for a selected length of time (field selectable)
sufficient to establish that the voltage drop is not transitory. The
switch connected to the preferred source automatically opens and
the switch connected to the alternate source automatically closes,
restoring voltage to the load.
The FP TS300 Automatic Transfer Micro-Processor Control utilizes
a state-of-the art electronic microprocessor to perform control
operations that are directed by settings programmed into the device
at the factory and in the field. Such parametric characteristics as
voltage-, current- and time-related operating parameters are entered
into the control by means of a front panel touch screen. The entries
are readily viewed on the large 240 x 128 color graphic backlit LCD
screen display. Internal memory with back-up battery records events
and maintains a log, allowing diagnostic capability.
To simplify entry of this information and to permit its quick review
on the liquid-crystal display, the functions associated with the
microprocessor are grouped as a series of categories in the Main
Menu. Category groupings on the Main Menu are: Status Screen,
Local Operation, Test Menu, Parameters Setup, Communication
Settings, View Voltage/Current Levels, View/Edit Event Logger, Fixed
Factory Settings, Screen Resolution, Time (24 Hr), and Date.
Status Screen
The Status Screen provides a consolidated synopsis of the positions
and conditions of both sources, switches and mechanism. Passive
indicators displayed as items on the Status Screen are as follows:
Operating Mode
Manual/Auto Mode Capability displays whether control is in
Manual or Automatic mode.
Local/Remote Mode Optional capability to display for units
furnished with SCADA interface whether the control is in Local or
Remote mode. the control is by default in Local mode and can only
be placed in Remote mode through user remote communication
connections at terminal block within the control enclosure.
Source 1 (and Source 2)
Preferred (or Alternate) Capability displays for each source
whether the associated source switch is providing service as the
Preferred source, which provides power to the load under normal
conditions or as the Alternate source, which provides power to
the load when the preferred source is not available.
Available (or Not Available) Capability displays for each source
whether the associated source voltage is Available (above minimum
conditions) or Not Available (below minimum conditions).
Switch Open (or Switch Closed) Capability displays for each
source the actual switch position (Switch Open or Switch Closed)
of the associated switch.
Mech Coupled (or Mech Decoupled) Capability displays for each
mechanism whether the mechanism is coupled (Mech Coupled)
to the associated switch or decoupled from the switch (Mech
Decoupled).
Charged (or Discharged) Capability displays for each mechanism
whether the associated mechanism is Charged ready to immediately
effect an automatic operation if coupled or Discharged requiring
charging prior to having the ability to effect an operation. Automatic-
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Charging Door Open (or Charging Door Closed) Capability
displays the position of the associated charging port access plate
Charging Door Open, which allows access to the manual charging
shaft and is interpreted as a condition where the mechanism is being
manually charged and therefore automatic operation is blocked; or
Charging Door Closed, which blocks access to the manual charging
shaft and, if the Charged condition also exists, is interpreted as a
condition where an automatic transfer is permitted.
Mech Cycles Capability displays actual number of mechanical
open/close cycles that have been performed by the associated
mechanism whether coupled or decoupled.
Switch Cycles Capability displays actual number of mechanical
open/close cycles that have been performed by the associated
switch when coupled.
Local Operation Screen
The Local Operation Screen consolidates active touch screen areas
of the microprocessor control that allow actual switch operations
(as well a showing switch position), change of modes or reset of
conditions. Active functions allowed from the Local Operation
Screen are as follows:
Source 1 (or Source 2 Provides actual position status lable
for the associated switch (Switch Open or Switch Closed).
Open Switch 1 (and Open Switch 2) Touching either of these
screen areas enables switching logic that initiates an actual switch
opening of the associated switch. Source 1 (or Source 2) position
indicator will change state accordingly.
Close Switch 1 and Close Switch 2 Touching either of these
screen areas enables switching logic that initiates an actual switch
closing of the associated switch. Source 1 (or Source 2) position
status label will change state accordingly.
Operating Mode Actual mode is displayed with word
Automatic or Manual in a green color, designating the present
mode. Applicable display screen area is touched to change mode
to desired condition.
Local/Remote Selector Furnished as an optional feature, the
control is by default in LOCAL mode. The control can only be placed
in REMOTE through user remote communication connections
at terminal block within the control enclosure. Actual condition is
displayed in a green color.
Reset Hold Return Touch the active display screen area to
return to the preferred source from the alternate source when the
control is programmed for a Hold return condition.
Reset Overcurrent Lockout Touch the active display screen
area to reset the control following an Overcurrent Lockout condition.
Active display screen area is red when an Overcurrent Lockout
condition exists.
Test Menu Screen
The Test Menu screen allows access to the active touch screens that
permit testing of the automatic transfer scheme and the (optional)
overcurrent lockout scheme. The Test Menu screen includes the
touch screen areas as follows:
SOURCE LOSS
Sim Src1 Loss Touching this screen area will simulate a
loss of voltage on source 1 and, if Source 1 is designated as the
preferred source, initiate a transfer operation if the scree