6-10 D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
STATUS CHAPTER 6: ACTUAL VALUES
6
These actual values represent the state of direct devices 1 through 16.
6.3.18 Teleprotection channel tests
ACTUAL VALUES STATUS TELEPROT CH TESTS
The status information for two channels is shown here.
CHANNEL 1 STATUS — This represents the receiver status of each channel. If the value is “OK,” teleprotection is enabled and
data is being received from the remote terminal; If the value is “FAIL,” teleprotection enabled and data is not being received
from the remote terminal. If “n/a,” teleprotection is disabled.
CHANNEL 1 LOST PACKETS — Data is transmitted to the remote terminals in data packets at a rate of two packets per cycle.
The number of lost packets represents data packets lost in transmission; this count can be reset to 0 through the
COMMANDS CLEAR RECORDS menu.
VALIDITY OF CHANNEL CONFIGURATION — This value displays the current state of the communications channel identification
check, and hence validity. If a remote relay ID does not match the programmed ID at the local relay, the “FAIL” message
displays. The “N/A” value appears if the local relay ID is set to a default value of “0,” the channel is failed, or if the
teleprotection inputs/outputs are not enabled.
6.3.19 Incipient fault detector
ACTUAL VALUES STATUS INCIPIENT FAULT INCIPIENT FAULT 1
The number of detected incipient faults for each incipient fault element are displayed here for each phase. These values
can be reset to zero with the
COMMANDS CLEAR RECORDS CLEAR INCIPENT FAULT COUNTERS command.
6.3.20 Remaining connection status
ACTUAL VALUES STATUS COMM STATUS REMAINING CONNECT
TELEPROT CH TESTS
CHANNEL 1
STATUS: n/a
Range: n/a, FAIL, OK
CHANNEL 1 LOST
PACKETS: 1
Range: 1 to 65535 in steps of 1
CHANNEL 2
STATUS: n/a
Range: n/a, FAIL, OK
CHANNEL 2 LOST
PACKETS: 1
Range: 1 to 65535 in steps of 1
VALIDITY OF CHANNEL
CONFIGURATION: FAIL
Range: n/a, FAIL, OK
INCIPIENT FAULT 1
INCIPIENT FAULT 1
PH A FAULTS: 0
Range: 0 to 65535 in steps of 1
INCIPIENT FAULT 1
PH B FAULTS: 0
Range: 0 to 65535 in steps of 1
INCIPIENT FAULT 1
PH C FAULTS: 0
Range: 0 to 65535 in steps of 1
COMM STATUS
REMAINING CONNECT
MMS TCP(max 5)
5
Range: 0 to 5
MODBUS TCP (max 4)
4
Range: 0 to 4
DNP TCP(max 2)
2
Range: 0 to 2