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L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL
SYSTEM SETUP
CHAPTER 5: SETTINGS
5
Once teleprotection is enabled and the teleprotection input/outputs are configured, data packets are transmitted
continuously every 1/4 cycle (3/8 cycle if using C37.94 modules) from peer-to-peer. Security of communication channel
data is achieved by using CRC-32 on the data packet.
NUMBER OF TERMINALS
— Specifies whether the teleprotection system operates between two peers or three peers.
NUMBER OF CHANNELS
— Specifies how many channels are used. If the
NUMBER OF TERMINALS
is “3” (three-terminal system),
set the
NUMBER OF CHANNELS
to “2.” For a two-terminal system, the
NUMBER OF CHANNELS
can set to “1” or “2” (redundant
channels).
LOCAL RELAY ID NUMBER
,
TERMINAL 1 RELAY ID NUMBER
, and
TERMINAL 2 RELAY ID NUMBER
— In installations that use
multiplexers or modems, it is desirable to ensure that the data used by the relays protecting a given line is from the correct
relays. The teleprotection function performs this check by reading the message ID sent by transmitting relays and
comparing it to the programmed ID in the receiving relay. This check is also used to block inputs if inadvertently set to
loopback mode or data is being received from a wrong relay by checking the ID on a received channel. If an incorrect ID is
found on a channel during normal operation, the
TELEPROT CH1 ID FAIL
or
TELEPROT CH2 ID FAIL
FlexLogic operand is set, driving the
event with the same name and blocking the teleprotection inputs. For commissioning purposes, the result of channel
identification is also shown in the
STATUS
CHANNEL TESTS
VALIDITY OF CHANNEL CONFIGURATION
actual value. The
default value of “0” for the
LOCAL RELAY ID NUMBER
indicates that relay ID is not to be checked. On two- terminals two-
channel systems, the same
LOCAL RELAY ID NUMBER
is transmitted over both channels; as such, only the
TERMINAL 1 ID
NUMBER
has to be programmed on the receiving end.
5.3.20 Installation
SETTINGS
PRODUCT SETUP
INSTALLATION
RELAY SETTINGS
— To safeguard against the installation of a relay without any entered settings, the unit does not allow
signaling of any output relay until
RELAY SETTINGS
is set to "Programmed." This setting is "Not Programmed" by default. The
UNIT NOT PROGRAMMED self-test error message displays until the relay is put into the "Programmed" state.
RELAY NAME
— This setting allows the user to uniquely identify a relay. This name appears on generated reports.
5.4 System setup
5.4.1 AC inputs
5.4.1.1 Current banks
SETTINGS
SYSTEM SETUP
AC INPUTS
CURRENT BANK F1(L1)
Teleprotection inputs/outputs and direct inputs/outputs are mutually exclusive. As such, they cannot be used
simultaneously. Once teleprotection inputs and outputs are enabled, direct inputs and outputs are blocked, and
vice versa.
INSTALLATION
RELAY SETTINGS:
Not Programmed
Range: Not Programmed, Programmed
RELAY NAME:
Relay-1
Range: up to 20 alphanumeric characters
CURRENT BANK F1
PHASE CT F1
PRIMARY: 1
A
Range: 1 to 65000 A in steps of 1
PHASE CT F1
SECONDARY: 1 A
Range: 1 A, 5 A
GROUND CT F1
PRIMARY: 1
A
Range: 1 to 65000 A in steps of 1