NR Electric PCS-9611, Инструкция по эксплуатации

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3 Operation Theory
PCS-9611 Feeder Relay
3-67
Date: 2014-04-08
6 25.t_ClsCB
The circuit breaker closing time setting of the
closing synchronism check function
0.02~1.00s 0.001s
7 25M.U_Diff
The voltage difference setting of the manual
closing synchronism check function
2~120V 0.001V
8 25M.f_Diff
The frequency difference setting of the manual
closing synchronism check function
0~2Hz 0.001Hz
9 25M.df/dt
The frequency rate-of-change setting of the
manual closing synchronism check function
0~3Hz/s
0.001
Hz/s
10 25M.phi_Diff
The phase angle difference setting of the manual
closing synchronism check function
0~60° 1°
11 25M.t_Wait
The waiting time setting of the manual closing
synchronism check function
0.01~30s 0.001s
12 25M.Opt_DdChk
The setting for selecting the dead check mode of
the manual closing function
1~7 1
13 25M.En_SynChk
The logic setting of the synchronism check
function of the manual closing function
0~1 1
14 25M.En_DdChk
The logic setting of the dead check function of the
manual closing function
0~1 1
3.19 Mechanical Protection
3.19.1 Mechanical Protection Theory
This relay can provide up to 4 programmable binary inputs for mechanical protection. If a binary
input which is used as a mechanical protection input is energized, this relay will issue an operation
signal after a predefined time delay.
The following figure shows the logic diagram of the No.1 mechanical protection. Other mechanical
protections have the same functional logic with the No.1 mechanical protection.
[MR1.Op]
&
[MR1.Blk]
[MR1.Input]
[MR1.En]
[MR1.En1]
[MR1.St]
t
MR1
0
Figure 3.19-1 Logic diagram of the No.1 mechanical protection
Where:
[MR1.Input] is the mechanical protection input signal which can be from a binary input;
“t
MR1
” is the setting [MR1.t_Op], the time setting of the No.1 mechanical protection;
[MR1.En] is the logic setting of the No.1 mechanical protection;
[MR1.En1] is the binary signal for enabling the No.1 mechanical protection;
[MR1.Blk] is the binary signal for blocking the No.1 mechanical protection.