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2 CALCULATION OF SETTINGS
2. OFF - no internal or external reclosing allowed. The three phase trip enable output (see Protection Setting
2025: CONFTRIP for details) will be enabled at this time.
3. INTERNAL - controlled by LPS-D only.
4. EXTERNAL - controlled by external relays only.
5. BOTH - controlled by LPS-D or external relays.
1802: RECLTYPE - Select Reclosing Type
Set one of the following three reclosing types:
1. 1POLE - With this type of reclosing selected, the first trip must be single-pole so that a 1PRI signal is sup-
plied to the recloser to start the first reclose. If the first trip is three-pole, then the 3PRI signal will cause the
recloser to go to lockout. When 1POLE reclosing is used, the three-pole trip enable signal (see recloser
outputs in product description section) will be set after the first reclose signal is issued, but not until at least
30 milliseconds after the 1PRI signal is removed from the recloser. The three-pole trip enable signal will be
maintained until the recloser resets or goes to lockout. This will insure that three-pole tripping will be initi-
ated for any subsequent faults that may occur during the remainder of the reclosing cycle. Up to three sub-
sequent three-pole reclosures with independent time delays can be selected (Protection Setting 1803:
NUM1P). These subsequent reclosures will be started by an input from the three-pole reclose initiate
(3PRI) signal. This mode of operation requires four independent timers which hereafter will be referred to
as 1PDELAY1, 1PDELAY2, 1PDELAY3 and 1PDELAY4 (Protection Settings 1804 to 1807).
2. 3POLE - With this type of reclosing selected, the first trip must be three-pole so that a 3PRI signal is sup-
plied to the recloser to start the first reclose. If the first trip is single-pole, then the 1PRI signal will cause the
recloser to go to lockout. All reclosures will be started by an input from the three-pole reclose initiate (3PRI)
signal. Up to four reclosures with independent time delays can be selected (Protection Setting 1808:
NUM3P). In this mode of operation, the three-pole trip enable signal will be set at all times. This mode of
operation requires four independent timers which hereafter will be referred to as 3PDELAY1, 3PDELAY2,
3PDELAY3 and 3PDELAY4 (Protection Settings 1809 to 1812).
3. 1POLE/3POLE - This mode of operation is a combination of modes 1 and 2 above. If a 1PRI input is first
applied to the recloser, then the program by the 1POLE setting will be followed. On the other hand, if a
3PRI input is first applied to the recloser then the program described by the 3POLE setting will be followed.
This mode of operation uses the same timers described by the 1POLE and 3POLE settings respectively.
The number of reclose attempts for the 1POLE and 3POLE programs are set independently by NUM1P
and NUM3P (Protection Settings 1803 and 1808).
1803: NUM1P - Number of Attempts following Single-Pole Trip
NUM1P establishes the number of reclosures to be attempted following a single-pole trip and can be set to the
following:
1. one reclosing attempt (single-pole)
2. three reclosing attempts (first is single-pole, second and third are three-pole)
3. four reclosing attempts (first is single-pole, second, third and fourth are three-pole}
Select a setting suitable for the application.
1804: 1PDELAY1 - Single Pole First Reclose Delay
1PDELAY1 establishes the delay to be used for the first single-pole reclose attempt following a single-pole trip.
The delay time can be set over a range of 0.1 to 300.0 seconds. Select a setting suitable for the application.
GE Power Management
LPS-D Line Protection System
2.3 PROTECTION SETTINGS
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