IB02602004E
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Instructional Literature
Effective: May 2008
Page
89
Instructions for the FP-6000 Protective Relay
5.4 Setting Descriptions
5.4.1 System Configuration Setting Descriptions (System Config)
The System Config settings contain all of the settings to
configure the power system.
Frequency:
Nominal system operating frequency.
Phase Seq:
ABC or ACB system phase sequence or rotation.
Temp Unit
Temperature unit, C or F
CT Connect:
The “3-wire” setting should be used for three-phase, three-wire,
medium voltage power systems. The “4CT In” setting should be
used on a 3-phase, 4-wire system where a 4th CT is connected in
the neutral conductor on. The “4CT Ig” should be used on a 3-
phase, 4-wire system when a zero-sequence ground CT is used.
See Section 8 for more information.
PH CT Ratio:
The primary connected current rating of the phase CTs. For
example, set to 800 for phase CTs of 800:5.
The FP-6000 is designed for use with current transformers (CTs)
having a nominal secondary current of either 5 amperes or
1 ampere. The FP-6000 CT Ratio setting is displayed as nnn:5 for
a 5 ampere CT unit and nnn:1 for a 1 ampere CT unit, where nnn
is the primary rating of the main CT. The setting range for the
primary rating is from 1 (5 for a 5 ampere CT) to 6000.
IX CT Ratio:
The primary connected current rating for the fourth current input
(usually for neutral or ground). If the ground measurement is
taken from a residual phase connection then this setting will be
the same as the Phase CT Ratio setting above. If a zero sequence
or ground CT is used then the primary rating for that CT will be
used.
VT Connect:
Voltage transformer connection – wye or “open” delta.
VT Ratio Exp:
Voltage transformer ratio decimal place.
Main VTR:
Main voltage transformer ratio, which can be 0.01 to 655.35 if
VTRation Exp=2; or 0.1 to 6553.5 if VTRation Exp=1. For example,
for a VT of 4160V/120V, set VTRation Exp to 2, Main VTR will be
36.67.
Aux VTR:
Auxiliary voltage transformer ratio, which can be 0.01 to 655.35 if
VTRation Exp=2; or 0.1 to 6553.5 if VTRation Exp=1. See the
example above.
VT Secondary Rating:
This set point is the voltage across the VT secondary when
nominal voltage is applied to the primary.
Prim Units:
Selection of Primary units for metering voltage and current
displayed values.
If setting is “Yes”, then all voltages and currents (including
sequence voltages and currents) will be displayed in primary
values, which are system values.
If setting is “No”, then all voltages and currents (including
sequence voltages and currents) will be displayed in secondary
values, which are the actual values measured at the FP-6000
inputs.
Power and energy readings are always in primary values.
I/O Config:
The user may select either default input/output configuration or
customized input/output configuration. The I/O refers to the
contact inputs and output relays. Choosing customized I/O
allows the user to freely program the contact inputs and relay
outputs. See Table 15 Input Configuration Settings, Table 16
Output Configuration Settings, and the following descriptions for
more information. The unit is shipped from the factory with “I/O
Config” set to default.
The I/O cannot be changed from the default setting unless this
setting has been set to Custom I/O. A Default I/O setting will not
give the user access to the configured I/O settings in the Set
Mode. To view I/O configuration, the user will need to exit the Set
Mode and enter the View Setting mode and scroll to the
appropriate section. If the relay I/O has been customized, then
selecting the “Default I/O” will change all the Custom I/O settings
back to the factor default settings.
Changing this setting will immediately ask you to confirm and
save the settings and will exit you out of the setting mode. You
will need to enter back into the Set Mode to continue your pro-
gramming session. Please note that all settings made prior to
this point will be saved upon the confirmation to save the
settings. This update is necessary for the relay to know if I/O
configuration is permitted and to give access to these settings.
Prog Logic:
The user may select either the default programmable logic or
customized programmable logic settings. Choosing customized
programmable logic allows the user to freely program all of the
logic gates. See “Programmable Logic” Table 15 settings and in
the descriptions below for more information. The unit is shipped
from the factory with “Prog Logic” set to default.
The programmable logic cannot be changed from the default
settings unless this setting has been set to Custom
Programmable Logic. A Default programmable logic setting will
not give the user access to the Programmable Logic settings in
the Set Mode. To view programmable logic configuration, the
user will need to exit the Set Mode and enter the View Setting
mode and scroll to the appropriate section. If the relay
programmable logic has been customized; then selecting the
“Default Programmable Logic” will change all the Custom
Programmable Logic settings back to the factory default settings.
Changing this setting will immediately ask you to confirm and
save the settings and will exit you out of the setting mode. Please
note that all settings made prior to this point will be saved upon
the confirmation to save the settings. This update is necessary
for the relay to know if Programmable Logic configuration is
permitted and to give access to these settings.
Remote Set:
This setting Enables or Disables the remote capability of
downloading setpoints via the rear communication port using
Eaton’s PowerNet software. When enabled, the user can program
and download settings to the relay through either the front RS-
232 port or the rear communications port. If disabled, the
settings can only be programmed into the unit via the front panel
pushbuttons or the front RS-232 port.