-
The
Technical Specifications of Transformer
Protection and Monitoring Device
Guodian
Nanjing Automation
Co.,
Ltd.
GUODIAN
NANJING AUTOMATION CO., LTD
Statement of the Version
This technical
specification which vision is V1.22 applies to
PST 645U
transformer
protection
and monitoring
device.
a)
Software
PST 645U
V1.22
b) Hardware
Revision
history
Table
of
PST
645U
transformer
protection
and
monitoring
device
hardware
module
version.
NO.
Name
of
module
AC
module
CPU module
Panel module
DIO module
TRIP module
Power module
Basis module
Communication
module
Clock
synchronization
module
the
Initial vision (2006-02)
Modified
version
of
the
Modified
first(2008-08)
version
of
the
second
PSL640U-TRIP.A-B
1
2
3
4
5
6
7
8
9
PST 640U-AC.A-A
EDP
03-CPU.A-A
EDP 03-PNL.A-A
PSL 640U-DIO.A-A
PSL
640U-TRIP.A-A
EDP 03-PWR.A-A
EDP 03-MB.A-A
EDP 03-COM.B-A
EDP 03-CLK.A-A
Revision
history
Table
of
PST
645U
transformer
protection
and
monitoring
device
product
instruction.
10
9
8
7
6
5
4
3
2
1
NO.
V1.22
V1.10
V1.00
Manual
Number
Version
Modified
Abstract
Directory
Version of
the
Statement
1.<
/p>
Outline
......................
..................................................
..................................................
..1
tion
function
settings...........
..................................................
.........................1
ring and controlling
function
settings...........
................................................1
2.
Technical parameters
.............................................
..................................................
.....2
e
scope of work
on protection components..........................
..........................2
g
error on protection components.........
..................................................
........2
tion
of
the
entire
set of
action
time.................
................................................2
cal
parameters
of
measurement and control
functions..................................
.2
tion
function
and
principle
...........................................
....................................3
over-current
p>
protection...............................
..................................................
..3
3.1.1Low-voltage
blocking elements......................
..................................................
....3
3.1.2Negative sequence
overvoltage
blocking elements......................
........................3
3.1.3White
current
inverse
time
protection.............
..................................................
...3
ad protect
ion...............................................
..................................................
.4
sequence
over-current protec
tion..............................................
.......................4
sequence
overvoltage protection.................
..................................................
..4
-voltage pr
otection..........................................
..................................................
4
ration.......
..................................................
..................................................
..4
3.7Non-
power protection..................................
..................................................
...........4
3.8Tripping logic
matrix...........................................
..................................................
...5
3.9TV
break......
..................................................
..................................................
.........5
4.
Terminal Descri
ption
..................................
..................................................
................6
terminal
plans...
..................................................
.............................................6
module
terminal
definition of X1.......................
...............................................6
module
terminal
definition of X2.......................
.............................................7
4.4DIO
module
terminal
definition of X3.......................
...............................................8
4.5DIO
module
terminal
definition of X4.......................
...............................................8
4.6TRIP
module
terminal
definition of X5.......................
..............................................8
4.7TRIP
module
terminal
definition of X6.......................
..............................................9
5.
Setpoint
tuning
instructio
ns.
....................................
..................................................
..10
5.1List
and instruction of protection value...............
..................................................
...10
5.2 List
and instruction of operating parameters...........
................................................12
5.3 List and
instruction of Soft platen........................
..................................................
.12
6.
Device information
code table
.............................
..................................................
......14
6.1Event information table.............
..................................................
..............................14
6.2Alarm information table.
..................................................
.........................................14
6.3Soft platen
information table.................................
..................................................
..15
6.4Remote
Communication information table...................
............................................15
6.5Remote
measurement information table.....................
...............................................16
6.6 Remote
controlling information table ....................
..................................................
16
of secondary wiring diagram
< br>............................................... .............................18
e
PST
645U
transformer
protection
and
monitoring
device
applies
to
the
non-
direct
grounding
system
or
low resistance
grounding
station
which voltage level is
below
110KV
.It can be screened
or installed grounding.
1.1
Protective function
configuration
1)
three sections of
the
composite
voltage
lockout
over-
current protection
(III
segment
can
be
set
to
the
inverse
time)
2)
The
three
sections
of
high-
pressure
side
of
the
zero-
sequence
over-current
protection
(III
segment
alarm
/
trip
option)
3)
The
three
sections
the
low
pressure
side
of
the
zero-sequence
over-current
protection
(III
segment
can
be
set to
the
inverse
time)
4)
overload
(alarm
/
trip
option)
5)
zero
sequence
overvoltage
protection
(alarm
/
trip
option)
6)
Low
voltage
protection
7)
Hand
accelerate
protection
8)
4-way
non-
power
protection
1.2
monitoring
and controlling
functions
configuration
1)
22-way
external
switch
input
and
tele-
signal
collection;
2)
The
circuit
breaker
position,
manual
switching
accident
tele-
signal
collection;
3)
normal
breaker
which
switching is remote;
4)
2
pulse
input,
accumulated electrical;
5) time of GPS
is
adaptive
when
input.
2Technical
parameters
2.1
precise
working
scope or
protection of
components
Voltage: 1.0V ~ 150.0V;
Current: 0.04IN ~ 20IN;
Zero Sequence Current: 0.02A ~
12.0A.
Note: IN
the
rating, the
same below.
2.2
Protection
element
setting
error
Current
components: ≤ ± 2.5%
or
±
0.01IN;
The
voltage
element:
≤
±
2.5%
or
±
0.005UN;
The
time
element:
definite
time
≤
(% 1
setting
value)
+40
ms.
Note: V
oltage is
rating,the same below.
2.3
protecting
the
entire group
of
action
time
Instantaneous trip
current:
1.5 times of
the
setting value
is not greater than
40ms.
2.4Technical parameters
of
monitoring and
controlling
functions
R
efer to
PS 640U
series
protection
and monitoring
device
manual
3.
Protection function and
principle
3.1 phase over-
current protection
Device in
the implementation of the three-stage cross-flow
discriminant is logically consistent and
its operation conditions are as
follows:
1) Iφ> Idn; Idn
is
the current setting of the n segment
Iφ
is phase current;
2) T> Tdn; Tdn is the delaying value of
the n segment .
Its
low
pressure
blocking
element
and
negative
sequence
voltage
blocking
element
is
decided
according to
controlling word .
3.1.1 Low voltage
lockout element
Action
when
any
one
of
the
low
voltage
components
in
the
three
line
voltage
below
the
low
voltage setpoint, the open latch
protection element. Using this component, you can
guarantee that
the device does not
appear in the case of non-fault motor feedback
malfunction.
3.1.2 Negative sequence
overvoltage lockout components
When
negative
sequence
greater
than
the
negative
sequence
overvoltage
setting,
open
lockout
protection
components. Together constitute the the composite
voltage blocking element, with low
voltage blocking element with over-
current elements constitute the composite voltage
over-current
protection.
3.1.3 phase current inverse time
element
Inverse
time
protection
component
size
naturally
with
the
action
time
limit
protection
circuit
current
protection
devices, by
panning
action
curve,
you
can
very
easily
with
across
the
board.
The
device
provides
the
common
characteristics
of
the
three
types
of
inverse
time,
that
is
the
standard
inverse,
very
inverse,
extremely
inverse
and
inverse-time
characteristics
by
setting
the
value of the corresponding inverse time
index tuning. Inverse time characteristics of the
following
formula:
1) Normal
inverse
t
?
0
.
14
tp
I
(
)
0
< br>.
02
?
1
Ip
2) Very inverse time
p>
t
?
1
.
35
tp
I
(
)
?
1
Ip
3) Extremely Inverse
t
?
80
tp
I
2
(
)
p>
?
1
Ip
: tp
is the time coefficient, and the range is from
0.05 to 1; IP is a current reference value; I is a
fault current; t is the tripping time.
Inverse time the value of the portion
of the tuning for the value of the product of the
molecules in
the above expression, in
seconds, the tuning range is from 0.005 to 127.
It also applies to Inverse time for a
long time . Long time inverse expression is as
follows:
t
?
120
tp
I
(
)
?
1
Ip
Phase-to-phase current protection device can be controlled by setting the relevant bit of the word
select definite time or inverse
time. When the the select inverse time,
automatically exit definite
time over-
current paragraph III protection, section III of
the phase current function plates inverse
time function of the phase current .
3.2 overload
element
Overload element
monitoring a three-phase current, and its
operating condition:
The the
MAX (Iφ)> Ifh, which for the overload current
setting Ifh.
By the
corresponding control word is set to alarm or
trip.
3.3 zero sequence
over-current protection
Device provides each of the three
sections of the high and low side zero sequence
over-current
protection, in which the
high-pressure side of the zero-sequence III
segment control word is set to
alarm
when the high-pressure side of the zero-sequence
current as a trip or alarm, zero-sequence
current
operating
parameters
introduction
of
control
word
a
bit
KG1.7
dedicated
select
zero
sequence current by
external zero sequence CT, or generated by the
software production for the
device
defaults to the high-pressure side of the zero-
sequence current external.
Low
pressure
side
of
the
zero-
sequence
III
section
protection
by
the
control
word
is
set
to
inverse-
time protection and zero sequence protection
inverse time characteristics of inverse time
element with phase current.
3.4 Zero sequence overvoltage
protection
Zero sequence
overvoltage element operates when the following
conditions are met:
1) zero-
sequence voltage is higher than the zero-sequence
overvoltage setting value;
2) the circuit breaker is in the
aggregate bit;
3) the delay
time meets.
Through
the
corresponding
control
word
can
be
set
to
alarm
or
trip,
when
zero
sequence
overvoltage is
selected as the alarm device to discriminate self
3U0 zero sequence voltage.
3.5 Low voltage protection
That the system voltage is lower than
the tuning voltage determines whether removes the
load.
The criterion of low
voltage components:
1) three
phase-to-phase voltage is lower than the low
voltage setting;
2) three-
phase current is less than a set value.
3) the circuit breaker in the aggregate
bit;
4) the delay
time.
3.6
acceleration
the
device includes late acceleration by hand and its
start conditions are as follows.
1) The time of the circuit breaker is
in the OFF position over 30s;
2) the circuit breaker by the sub-gate
to closing, accelerated to allow time broadening
3s;
Device independent
current accelerating current setting and the
corresponding time setting is set.
3.7 Non-electrical
protection
The
device
provides
four
open
into
the
non-power
protection,
the
by
soft
platen
select
trip
or
alarm. When the the soft platens
investment, the non-power movement is in the
trip;, non-power
signs only when the
soft platen exits.
The
device panel lights shows only non-electricity and
non-electricity, non-power and non-power
4 of four signal for flexibility. The
non electricity significance engineering terminal
access. Under
normal circumstances, the
default non-power inputs of heavy gas, non-
electricity to the input end
of
the
light
gas,
non-electricity
input
of
the
pressure
release
and
non-
power
input
of
high
oil
temperature.
3.8
tripping
logic
matrix
The
protection
tripping
logic
of
the
device
setting
tuning
protection
components
operation
export
tripping
password
is
set
by
the
export
group.
Tripping
password
is
a
16-bit
binary
code,
and
the
tuning
range is
from 0000
to
FFFFH.
When
the
protection
elements act,
the
trip
password
is set
to
1, and then jump
to
the
respective outlet,
and
respective
outlet
does not
move
when it is 0.
Position
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
outlet
trip
X5:1-2
X5:3-4
X5:5-6
X5:7-8
reserved
X3:1-2
X3:3-4
X3:5-6
X3:7-8
X3:9-12
reserved
reserved
reserved
reserved
reserved
Setting value
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
Example:
action
of over-current segment I needs to jump to the
export
’
, which
corresponds to the export of setting
the value of the binary number 0001, four to a
set,and
is
calculated
according
to
8421
yards.
In
the
setting
menu
,items
of
trip
segment
ⅰ
password
3.9 TV
break
When operating
parameters control word KG1.5 = 0 and selecting
star wiring, criterion of bus TV
breaking is as follows:
1)
When the phase voltage is less than 8V and some
phase (a or c phase) current is greater than
0.04IN ,it is sentenced for three-phase
voltage loss;
2) three-phase voltage is
greater than 8V, the minimum line voltage is less
than 16V;
3)
That
three-phase
voltage
is
greater
than
8V
;the
maximum
line
voltage
and
minimum
line
voltage difference is greater than 16V
is sentenced to two-phase or single-phase TV
break.
When the operating parameters of
the control word KG1.5 = 1
bus PT
taking VV wiring and its breaking criterion is as
follows:
1) negative sequence voltage
is greater than 8V;
2) one phase or
two-phase line voltage is less than 70V pressure
value;
3)
three-phase
line
voltage
is
less
than
70V
pressure
value
and
a
phase
current
is
greater
than
0.04IN.
TV
wiring
in
these
two
meets
after
the
breaking
criterion
any
conditions
10s,
the
device
sent
busbar TV disconnected
When TV break is detected, the device
can be under the control word KG1.13 and choose to
exit
the band voltage components
paragraphs protection or voltage components. The
TV disconnection
detection function can
be controlled by the word
4Terminal
Description
4.1Total
terminal
plans
4.2AC
module
terminal
definition of X1
Terminal X1
1
2
3
4
5
6
7
8
9
Definition
L+
L-
DYJG1
DYJG1
24V+
24V-
U0
zero sequence voltage input
polarity end
zero
sequence
voltage
input
non-
polar
end
A phase
current
input
polar end
Description
positive supply
negative
supply
device
of
losing power
output contacts
U
0
,
Ia
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25~28
29
30
31
32
Definition
232_RXD
232_TXD
232_GND
485_1_A
485_1_B
I
a
,
Ib
A phase
current
input
non-
polar end
B phase
current
input
polar end
B phase
current
input
non-
polar end
C phase
current
input
polar end
C phase
current
input
non-
polar end
High-
voltage
side of
the
zero-sequence
current
input
polar
end
High-voltage
side
of the
zero-sequence
current
input
non-
polar
end
A
phase
measuring
current
input
polar end
A
phase
measuring
current
input
non-
polar end
B
phase
measuring
current
input
polar end
B
phase
measuring
current
input
non-
polar end
C
phase
measuring
current
input
polar end
C
phase
measuring
current
input
non-
polar end
Low
voltage
side of
the
zero-sequence
current
input
polar
end
Low voltage
side
of the
zero-
sequence
current
input
non-
polar
end
reserved
A
phase
voltage
input
polar
end
B phase voltage
input
polar
end
C
phase
voltage
input
polar
end
V
oltage
input
non-polar
end
Terminal NO.
1
3
5
7
9
11
2
4
6
8
10
12
Definition
232_CTS
232_RTS
232_GND
485_2_A
485_2_B
485_2_GND
I
b
,
Ic
I
c
,
10g
10g
,
CIa
CI
a
,
CIb
CI
b
,
CIc
CI
c
10d
,
10
d
reserved
Ua
Ub
Uc
Un
,
The
serial
terminal
wiring
diagram
(the
terminal
description
is
only
for
the
EDP
plug)
485_1_GND
4.3
CPU
module
terminal
definition of X2
Terminal X2
1
Definition
switch to X2:1
Description
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
switch to X2:2
distant
status
repairing status
switch to
X2:5
switch to X2:6
switch
to X2:7
switch to X2:8
switch to X2:9
switch to
X2:10
switch to X2:11
switch
to X2:12
switch to X2:13
switch to X2:14
Switch to
public
negative terminal
GPS(+)
GPS(-)
signal GND
spring
discharged
input
0:
ground
1:
the distant
status
0:
normal operation
1:
repairing
status
the
over-current
by
running
parameter
is set to
a hard
platen
the
over-current
by
running
parameter
is set to
set to the
input
pulse P
by
the
operating parameters
set to
the
input
pulse Q by
the
operating
parameters
set to the External reset
by
the
operating parameters
GPS
on
positive input
GPS
on
negative input
When
GPS
switches
to
RS485
ways,
the
GPS
device
485
interface
connects
to GND
to prevent
common
mode
interference.
Serial
terminal
wiring
diagram
Terminal NO.
1
3
5
7
9
11
2
4
6
8
10
12
Definition
232_CTS
232_RTS
232_GND
485_2_A
485_2_B
485_2_GND
Definition
232_RXD
232_TXD
232_GND
485_1_A
485_1_B
485_1_GND
4.4
DIO module
terminal
definition of X3
Terminal X3
1
2
3
4
5
6
7
Outlet11
reserved
Outlet10
reserved
outlet9
reserved
definition
outlet8
description
reserved
8
9
10
11
12
13
14
4.5DIO
module
terminal
definition of X4
Terminal X4
1
2
3
4
5
6
7
8
9
10
11
12~16
Switch to 15
Switch to 16
Switch to 17
Switch to 18
Switch to 19
Switch to 20
Switch to 21
Switch to 22
Switch to public
negative terminal
reserved
4.6 The
terminal X5 definition of the TRIP module
The terminal X5
1
2
3
4
5
X5:5-6
Jumper
JUMP1
=
1-2
the
choice
X5:3-4
Remote closing output
contacts
definition
X5:1-2
Description
definition
reserved
description
Outlet12
restart
reserved
Outlet12
Jumper JUMP1 = 1-2 the choice without
QDJ atresia. JUMP1 = 2-3 select after
QDJ
atresia (silent the default
setting).
X3:9-10 restart
contacts
Non-
electricity:
heavy
gas
Non-
electricity:
light
gas
Non-
electricity:
pressure
release
Non-
power
4:
high oil temperature
Remote tripping
output contacts
-
-
-
-
-
-
-
-
-
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