Lockout; Lps-D Reclosing Program Summary - GE LPS-D Instruction Manual

1.10 RECLOSER (OPTIONAL)
In addition to the synchronism check supervision, this option includes voltage supervision. The three voltage
supervision modes are:
1
• LBUSDLINE (live bus dead line)
• DBUSLLINE (dead bus live line)
• DBUSDLINE (dead bus dead line)
Four voltage Protection Settings (1832: VBUSLIVE, 1833: VBUSDEAD, 1834: VLINELIVE, and 1835:
VLINEDEAD) are required for the synchronism check function to establish live and dead voltage levels for the
bus and line potential. Each of these levels has a range 0.1 to 130 V. The live voltage setting for the line and
bus also establish the minimum voltage that must be present before the synchronism check functions are
allowed to operate.
Protection Setting 1819: CLOSEANG (range: 0 to 75°) establishes the angle that the BUS and LINE voltages
must be within before reclosing will be permitted. In addition, the slip frequency between the BUS and LINE
voltages must be less than Protection Setting 1820: SLIPFREQ (range: 0.1 to 5 Hz), and both criteria must be
satisfied within the time specified by Protection Setting 1823: SYNCHOLD (range: 1 to 100 seconds). If the
closing angle and slip frequency requirements are not met before the SYNCHOLD time ends, then the recloser
will go to lockout.
The synchronism check function also measures the difference in magnitude between the bus voltage and the
line voltage. If the delta voltage supervision is desired, Protection Setting 1840: DELTAVBLK is set to YES.
Protection Setting 1839: DELTAV (range: 0.1 to 30 V) establishes the maximum difference for which reclosing
is allowed. If the voltage difference is greater than the DELTAV setting, then reclosing will be blocked even if
the bus and line voltages are within the angle established by the CLOSEANG setting.
• SYNCHRONISM CHECK INPUTS - The only additional input required to run the synchronism check func-
tion is the single-phase voltage input. No contact inputs are required.
SYNCHRONISM CHECK OUTPUTS - The only output produced by the synch check function is the syn-
•
chronism check/voltage check permission output. This output is run directly to the internal recloser to
supervise reclosing. The output is also programmable, therefore, if an external synch check signal is
required. it may be programmed to drive one (or more) of the output contacts in the LPS-D either through
the ALPS-Link or Xpression Builder programs or through the keypad.
TRIPMODE
(Prot. Setting 1203)
1POLZ / 1POLZ2
3POL
3POL
1POL / 1POLZ2
1POL / 1POLZW
3POL
1-
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RECLTYPE INITIAL
(Prot. Setting 1802) TRIP TYPE
1POLE Single phase
Three Phase
1POLE Any trip
3POLE Any trip
3POLE Any trip
1POLE3POLE Single phase
Three phase
1POLE3POLE Single phase
Three phase
LPS-D Line Protection System
1 PRODUCT DESCRIPTION

1.10.7 LPS-D RECLOSING PROGRAM SUMMARY

PROGRAM
Up to 4 reclose attempts using 1P delays

Lockout

Lockout
Up to 4 reclose attempts using 3P delays
Lockout
Up to 4 reclose attempts using 1P delays
Up to 4 reclose attempts using 3P delays
Up to 4 reclose attempts using 1P delays
Up to 4 reclose attempts using 3P delays
GE Power Management