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LPS-O Line Protection System GE Power Management
1.5 OTHER FEATURES 1 PRODUCT DESCRIPTION
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1.5.14 METERING
Metering values may be obtained from the keypad or through remote communications. The following quantities
are available: RMS voltage and current, phasor voltage and current, Watts, Vars, Power Factor, system fre-
quency, and Breaker health. The voltage and current values are accurate to 1% of reading. Refer to Chapter 8:
LOCAL USER INTERFACE for a description on how to use the metering function.
To ensure proper power metering, connect the LPS-O as follows:
Figure 1–7: POWER METERING CONFIGURATION
1.5.15 BREAKER CONTROL
Two different breakers may be selectively tripped or closed via the local keypad or a remote PC connected to
the RS232 port. The commands are as follows:
• Trip Breaker 1 and Trip Breaker 2 use the same output contacts or SCRs as a fault trip command.
• Close Breaker 1 and Close Breaker 2 use separate auxiliary relays. The contact of each auxiliary relay
must be wired to the appropriate breaker’s close circuit.
Remote breaker tripping and closing are enabled or disabled with a jumper on the Processor module as shown
in Figure 3–6: INPUT BOARD DIAGRAM on page 3–9. The LPS-O is shipped from the factory with this jumper
removed and Breaker Control enabled. Install the jumper to disable Remote Breaker Control.
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