Toshiba GR200 Series Instruction Manual page 537

Line differential protection ied

Hide thumbs Also See for GR200 Series:

Table of Contents

Communication bits for OSTV

When the function 'Out of step tripping by voltage (OSTV)' operates, the area of the 'V 0 ' is used

for the communication for the OSTV function in place of sending the zero-sequence voltage.

For more information about the OSTV function, see Chapter

tripping by voltage

Usage of sub-communication channel

Figure 2.37-6 shows the connection and monitoring points in the COM3_1bit to COM3_8bit of

Wide (N=3) communication. For example, when the user wishes to send a bit-signal using the

COM3_1 sub-channel, the user should connect the signal with PLC connection point "COM3-

1_S". On the other hand, when the user wishes to retrieve a bit-signal from the COM3_1 sub-

channel of the remote terminal-1, the user should use PLC monitoring point "COM3-1_R1".

With regard to the reception from the remote terminal-2, other PLC monitoring points are

provided. Entire PLC connection points and monitoring points for the sub-communication

channels are shown later.

a. PLC connection points

b. PLC monitoring points

as to the reception

from remote terminal 1

Figure 2.37-6 Connection and monitoring points for COM3 (1 to 8 bits)

Setting of open terminal detection

The open terminal detection (OTD) function is provided and a set of Off is placed for scheme

switch [OTD] as a default.

COM3 (8bits)

1 2 3 4 5 6 7 8

Relay application: Out of step

c. PLC monitoring

points as to the

COM3 (8bits)

reception from

1 2 3 4 5 6 7 8

remote terminal 2

6F2S1914 (0.49)

GRL200 (Soft 033 & 037)

Chapters

Table of Contents