ST260E Intelligent （Self- Powered）passive Protection device
User’s Manual
Version 7
Zhuhai STROM Electric CO. Ltd.
Manual of intelligent （self-powered）integral protection device ST260E
Preface
Please read this chapter meticulous, before using product.
Safety prevention is suggested before powering on product in this chapter. Customers should
pay seriously attention to the content and concepts, otherwise, our company is responsible for
none duty of damage caused by error operation.
Before making any operation for device, professional worker should prudently read this
manual and familiar with relevant content, operation guideline and warnings.
Several normative defines used in manual are listed as following:
Danger! This tag means neglecting measures of safety and prevention will cause death,
fearful human body hurts, and serious damage of equipment.
Caution! This tag means neglecting measures of safety and prevention will cause death,
fearful human body hurts, and serious damage of equipment.
Warning! This tag means neglecting measures of safety and prevention will cause, light
human body hurts, and damage of equipment. This norm is suit of damage and possible damage
for equipment.
Danger! As primary system is running with power, it is should be forbidden opening
secondary side loop of CT accessing device, for this opening loop will send extremely dangerous
voltage; also, it is should be forbidden short secondary side loop of PT accessing device, for this
opening loop will send extremely dangerous short circuit arc;
Caution! As electrical equipment is running with power, making mistake operation could
result body hurts and damage of equipment for high voltage carrying by some elements of
device.
Only qualified person is allowed to operate device or work near device. Worker should be
familiar to attention items referred by manual, workflow and safety norms.
Special attention! General work norms used to high voltage equipment must be complied,
or it will result body hurts and equipment damage.
Zhuhai STROM Electric CO. Ltd.
Manual of intelligent (self-powered) protection device ST260E

Warning!
Device should resolutely access to ground.
Device should work in ambient conditions met technology parameters ruled without
abnormal vibration.
AC voltage or AC current circuits accessed should meet corrective rated parameters
responding to device.
As output contacts connected with external loops, power voltage of external circuit should be
checked to avoid connected loop over thermal.
Cables connected should be checked meticulously to avoid excess force.
Copy right
version ：R1.07
This company has all intelligent right property in this file, if the third party distribute or
copy without authority, our company will reserve right to investigate legal responsibility.
Sale Tel.：0756-3815168
Fax：0756-3815159
E-mail：zhstr@163.com
Tec. Tel.：0756-3815152
CS Tel：0756-3815153
Website：www.strong.com
Zhuhai STROM Electric CO. Ltd.
Manual of intelligent （self-powered）integral protection device ST260E
CONTENT
1. DESCRIPTION OF PRODUCT ..................................................................... 1
1.1APPLICATION SCOPE ................................................................................ 1
1.2FUNCTION FEATURES .............................................................................. 1
2. TECHNOLOGY PERFORMANCE INDEX ...................................................... 3
2.1WORKING CONDITIONS ........................................................................... 3
2.2ELECTICAL TECHNOLOGICAL PARAMETERS ............................................. 3
2.3INSULATION PROPERTIES ......................................................................... 4
2.4ANTI-ELECTROMAGNETISM INTERFERENCE PERFORMANCE .................... 4
2.5MECHINICAL PROPERTY .......................................................................... 5
2.6PROTECTION GRADE................................................................................ 5
3. DEVICE MODEL PARAMETERS SELECTION ................................................ 6
4. FUNCTION CONFIGURATION ................................................................... 7
4.1SURGING CURRENT BLOCKING FUNCTION ............................................... 7
4.2THREE- STAGE OVERCURRENT PROTECTION ............................................ 7
4.3TWO-STAGE ZERO-SEQUENCE PROTECTION ............................................. 9
4.4TWO-BINARY INPUT LOOPS ...................................................................... 9
4.5IMPULSE TRIPPING OUTPUT ................................................................... 10
4.6SIGNAL INDICTING ............................................................................... 10
4.7EVENT RECORD ...................................................................................... 2
5. STRUCTURE AND WIRING ........................................................................ 3
5.1STRUCTURE AND INSTALLATION .............................................................. 3
5.2WIRING ................................................................................................... 8
6. DESCRIPTION OF SETTING PARAMETERS ................................................. 9
6.1SYSTEM PARAMETERS ............................................................................. 9
6.2VALUE PARAMETERS ............................................................................. 10
Manual of intelligent (self-powered) protection device ST260E
7. OPERATION OF HUMAN MACHINE INTERFACE (HMI) ............................ 13
7.1MONITOR MENU .................................................................................... 13
7.2MIAN MENU .......................................................................................... 14
7.3SYSTEM MENU ...................................................................................... 14
7.4VALUE MENU......................................................................................... 15
7.5EVENT MENU ............................................................................................. 15
7.6CALIBRATION MENU.............................................................................. 16
8. MANUAL VERSION ................................................................................ 17
Manual of intelligent （self-powered）integral protection device ST260E
1. Description of product
1.1Application scope
Intelligent (self -powered) protection device of ST260E is new developed equipment. This
device adopted multiple patents, and its technology index improved greatly. It is suitable to
operate in unattended power substation with bad ambient outside door.
1.2Function features

Device ST266F adopts high-integrated, internal bus wire of chip processor which deals
with signal coming from CT and PT, and control relay-output via digital logic calculation.
It adopts sealed case, maintenance–free design and anti-interference performance, which
are suitable for ring-grid net cubicle with bad running ambient and compact mounting
position.

Device adopts extremely low-consumption technology to ensure reliable function rapidly
starting up at any conditions

Device ST266F with design features as simple and small structure and flexible and
convenient installation approach is suit for ring-grid net cubicle with compact installation
conditions.

Self-powered function (power-supply by CT) eliminate external burden brought by
installing DC panel or USP.

Protection of ST266F provides three-stage phase to phase overcurrent protection, two
stage earth grounding protection, multiple IEC standard inverse curves to be selected, and
voltage protection.

Surging current blocking function is offered to avoid tripping for error caused by putting
on operation transformer with no load.

Instantaneous protection adopts short-data-window fast algorithm to real rapid tripping
short-circuit fault and to avoid override tripping.

Adopting Chinese word LCD interface, multiple-layer menus display, Chinese and
English language exchanging selection, and window design with event-pop up, as well as
extremely friendly HMI.

Flexible and completed protecting functions which could be switched freely via control
words are added in device.
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Manual of intelligent (self-powered) protection device ST260E

1A or 5A rated current CT could be sampled for design of measurement circuits with
automatically dynamic increasing-revenue and extremely width measurement scope.

Users could either select 50Hz or 60Hz system frequency or choose zero-sequence current
obtaining mode as external sampling mode of internal calculation mode.

Strength acquiring-energy circuit design, extremely absorbing peak voltage circuits ensure
security and reliability of power supplying loop.

Inputting Hybrid voltage to power circuit is allowed, either accessing power-windings of
CT, or inputting DC48V or DC24V voltage.

Extremely width temperature range of running, waterproof design sure that it is possible to
run in extremely ambient conditions.

Maximum number of History record stored is 100. Record will not be lost for power off. It
is convenient for fault trading.

Device provides RS-485 communication port and open communication protocol to realize
SADAD function.
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Manual of intelligent （self-powered）integral protection device ST260E
2. Technology performance index
2.1Working conditions
2.1.1Ambient temperature：
Working temperature:
-20°C — 60°C
Storage temperature:
-40°C — 85°C
2.1.2Relative humidity：
5%
2.1.3Atmospheric pressure：
2.1.4Altitude height：
— 95%
70 K Pa — 110KPa
No higher than 5000m
2.2Electical technological parameters
2.2.1Rated data: AC current：5A or 1A（general）
Frequency：50Hz/60Hz（mark in your orders）
Power：
DC48V，±20%
DC24V，±20%
Self- powered, acquiring power from phase CT.
2.2.2Overload capability ：Current circuit: long term running-------10 A
2.2.3Power consumption：Consumption of Power-supply circuit is no larger than 5W
Consumption of each AC input circuit is no larger than 0.5VA.
Staring up power consumption is no longer than 0.2VA.
2.2.4Measurement scope：Phase current:
Earth current
0.05A —50A
0.005A—5A
2.2.5Measurement accuracy： Voltage: <0.5% or no larger than 0.5V
Phase current: <0.5% or no larger than 0.01A
Earth current sampled: <0.1% or no larger than 0.002A
2.2.6protection scope： protection current scope: 0.1A—50A
2.2.7Protection action time：
Under 2 multiplier instantaneous setting value, inherent action time is no longer than 20ms.
Under 1.5 multiplier setting value, inherent action time of all protection is no longer than 35ms.
2.2.8 Binary input circuit:
External supplying power and voltage customized, bearing current is 2 mA.
2.2.9 Output contact：Output contact can bear continuously AC220V，10A.
2.2.10 Communication port：At front-panel port—Special communication port for debugging .
At backboard port— RS485communication port.
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Manual of intelligent (self-powered) protection device ST260E
2.3insulation properties
2.3.1Insulation resistance
No.
Test position
1
AC input circuits to ground.
2
AC input circuits to power circuit.
3
Power circuit to ground
4
Binary input circuit to ground.
5
Output circuit to ground.
Between binary input circuit and
6
output circuit.
Test requirement
Using megger with
Insulation resistance is
1000V
measuring
greater than 100MΩ
voltage.
2.3.2Dielectric strength
No.
Test position
Power circuit to ground.
1
Test condition
2
Communication circuit to ground.
3
AC input circuit to ground.
Between AC input circuits and
power circuit.
Binary input circuit to ground.
4
5
6
7
Output circuit to ground.
Between binary input circuit and
output circuit.
2.3.3Inrush voltage
No.
Test position
AC input circuit to ground.
1
Between AC input circuit and
2
power circuit.
Power circuit to ground.
3
4
Binary input circuit to ground.
5
Output circuit to ground.
Between binary input and
output circuit.
6
Note
Test requirement
Device can bear 1min
frequency broken-down
test of special voltage
two of which is 1000V
No broken down.
and others is 2000V,
under
normal
test No element damaged.
atmospheric conditions,
other loops grounded at
equipotential point.
Test condition
Device can bear short-time
inrushing voltage test of
1.2/50us standard lightning
wave, with open-loop
testing voltage 5KV, under
normal test atmospheric
conditions.
Test requirement
No wire broken down.
No insulation damaged.
No element damaged.
2.3.4Anti-humidity and Anti-heat performance
Device should withstand constant damp and hot test in GB/T 2423.9 regulation, with test
temperature +40℃±2℃, related humidity（93±3）%,and test time 48h. According to clause
2.3.1 requirement, 2 hours before the end of test, insulation resistance between loops is no larger
than 1.5MΩ, dielectric strength voltage is no lower than 75% amplitude voltage in accordance
with clause 2.3.2.
2.4Anti-electromagnetism interference performance
2.4.1Anti-interference of electrostatic discharging
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Manual of intelligent （self-powered）integral protection device ST260E
Pass the 4th grade level electrostatic discharging test in standard norm GB/T 17626.2-1998.
2.4.2Immunity of radiated for radio-frequency electromagnetic field.
Pass the 4th grade level immunity test of radiation for radio-frequency electromagnetic field
in standard norm GB/T 17626.2-1998.
2.4.3Immunity of electrical transient bursts
Pass the 4th grade level immunity test of radiation for electrical transient bursts in standard
norm GB/T 17626.4-1998.
2.4.4Immunity of surge striking
Pass the 4th grade level immunity test of surge striking in standard norm GB/T
17626.5-1998.
2.5Mechinical property
2.5.1vibration
Pass the 1th serious grade level shock-respond test in clause 16.2 of norm GB/T 7261.
2.5.2impact test
Pass the 1th serious grade level impact test in clause 17.4 of norm GB/T 7261.
2.5.3rashing test
Pass the 1th serious grade level crashing test in clause 18 of norm GB/T 7261.
2.6Protection grade
IP54
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Manual of intelligent (self-powered) protection device ST260E
3. Device model parameters selection
ST
260E
xx
x
x
x
Selection of inatallation direction
L — Vertical installation
H — Horizontal installation
Selection of terminal wiring mode
B — The Back wiring mode
C — The Side wiring mode
Selection of tripping output
1 — DC24V impulse output
2 — DC48V impulse output
4 — DC220V impulse output
5 — Relay contact output
Power supply selection of binary input loop
S1 — Internal power supply
A1 — External power supply， AC220V
A2 — External power supply， AC110V
D1 — External power supply, DC220V
D2 — External power supply， DC110V
D3 — External power supply， DC48V
D4 — External power supply， DC24V
Code of Production serial
Code of company
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Manual of intelligent （self-powered）integral protection device ST260E
4. Function configuration
4.1Surging current blocking function
Criterion of Surging current blocking function is based on the second harmonic component
ratio. During 5 seconds since current value rising from zero, device will calculate percentage
value of second harmonic wave to fundamental wave. When this percentage value is larger than
setting value, device will block overcurrent protection. Harmonic occupancy is calculated all the
time. Once it is lower than setting value, besides, current value is also larger than setting value,
then, device output overcurrent trip outlet. Aiming to avoid harmonic wave calculation error and
error blocking overcurrent, software will exit surging current blocking criterion, as input current
is lower than 0.05A (which is secondary value of CT).
The second harmonic wave occupancy fixed value could be set in value menu of surge
current blocking function.
4.2Three- stage overcurrent protection
Device provides three-stage overcurrent protection such as instantaneous, time limited
instantaneous and overcurrent. The front two functions have only definite time limited
characteristics, but overcurrent could select four curve characteristics as definite curve, normally
inverse curve, very inverse curve and extremely inverse curve. Formulas of the last three curves
are shown as following:
(Normal inverse curve)：
(very inverse curve)：
(extreme inverse curve)：
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Manual of intelligent (self-powered) protection device ST260E
式中 wherein：
t
-
tripping time.
T I〉 -
time multiplier
I
-
fault current
Id
-
current setting value
Action characteristics of definite time limited is shown Fig. 4.1; And three inverse curve are
shown respectively as Fig.4.2, Fig.4.3, Fig.4.4.
Fig.4.1: Action characteristics of definite curve. Fig.4.2: Action characteristics of normal invers curve
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Manual of intelligent （self-powered）integral protection device ST260E
Fig.4.3: Action characteristics of very inverse curve.
Fig.4.2: Action characteristics of extremely invers curve
4.3Two-stage zero-sequence protection
Device ST260E provides two-stage zero sequence protection, detecting fault current of
earth grounding, its major application is system of neutral point insulation or compensation. The
1st stage protection has definite-time action-characteristics, the 2nd stage incudes four type curves
such as definite curve, normal inverse curve, very inverse curve and extremely inverse curve.
Device gets zero sequence current via two approaches, one is sampling from earth CT and
the other is internal algorithm, each of two can be selected in earth mode item of system menu.
For zero sequence current is very small in non-directly grounding system, it requires high
sampling accuracy of device to detecting zero sequence current, so generally, sampling mode of
zero sequence current is suggested from accessing special zero sequence CT.
4.4Two-binary input loops
Device provides 2 binary input loops. Power voltage can be customized, pleas mark in your
orders. Generally, without special description, binary input adopts external power supplying
mode, voltage type is usually the same with device power supplying
Binary input name can be defined by users, with options:
1） Normal binary (For short: signal 1/2)
2） Circuit breaker closed position (For short: BR On)
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Manual of intelligent (self-powered) protection device ST260E
3） Circuit breaker opening position (For short: BR off)
4） Spring stored energy signal (For short: Ener. Full)
5） Spring un-stored energy signal (For short: Ener. Less)
6） Over temperature tripping (For short: over temp)
7） Heavy gas tripping (For short: Heavy gas)
8） External contacts （For short: Ext.TRIP)
When selecting switch position or stored status, corresponding signal will be displayed in
LCD interface of device.
When binary input is defined as external trip contact, device detected closing input signal
continuously 10ms, then device will output tripping. Generally, it can be used for transformer
heavy gas or temperature protection, as well as connecting button to realize manual tripping.
4.5Impulse tripping output
Active
impulse
tripping
output
terminal can send short-time impulse
energy, this impulse output in pre-set
manner to ensure circuit breaker trip.
Impulse output wave is shown as Fig.4.5。
t
Tripping output impulse width and output manner can be pre-set: setting range of output
impulse width is 30ms~90ms; impulse output mode can be selected “single time” or
“continuous”. If “single” mode is selected, when short-time impulse is detected, device only
sends once impulse energy output; if “continuous” is selected, when short-time impulse is
detected, device will sends impulse once per second until fault disappear.
4.6Signal indicting
Green “RUN” indicator and red “trip” indicator are respectively embedded in front panel of
device.
Green “Run” indicator has three flashing-frequency: the 1st is 5times per second that means
device has internal fault need maintenance; the 2nd is 2 times per second means that device runs
normally; the 3rd is 0.25 times per second means that protection has been off.
Lighting red “Trip” indicator means that device output tripping signal.
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Manual of intelligent (self-powered) protection device ST260E
4.7Event record
Device can record 100 history events each of which contains various types such as action of
overcurrent, binary input of position placement, equipment fault and etc. each record includes
timestamp of event occupation, various AC input value as event appeared, states of binary input
and so on. Event record could not be lost when power is off, because they are storage in chip
Flash.
Event is recorded according to time sequence order. Device will automatically cover old
record with the latest information as number of record in Flash is more than 100.
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Manual of intelligent （self-powered）integral protection device ST260E
5. Structure and wiring
5.1Structure and installation
5.1.1 panel layout
Fig.5.1 front panel schematic diagram
5.1.2 Boundary dimension and installation
ST260E device has general box structure dimension which contains B type terminal outlet
mode and L-type, H-type installation directions. All dimension schematic diagram shown in this
chapter is vertical installation (L-Type). L-Type mode rotates 90 degrees in counterclockwise
order is horizontal installation direction (H-Type).
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Manual of intelligent (self-powered) protection device ST260E
5.1.2.1Back terminal outlet (B-type) method
2 .5 6 .5
74
11 0
22
142 137
Fig. 5.2 Front-looking diagram
Fig. 5.3 Right-looking diagram
70
68
138
136
Fig.5.4 Back-looking diagram
Fig. 5.5 Opening dimension in cabinet door of L-type
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Manual of intelligent （self-powered）integral protection device ST260E
Mounting hole: M4
M4 安装螺孔
32
77
Fig.5.6 Bottom-looking diagram
Allowance depth is no larger than 6mm.
允 许 拧 入 深 度 ≤6m m
33
Fig.5.7 Suggestion installation diagram
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Manual of intelligent (self-powered) protection device ST260E
5.1.2.2 Terminal side outlet（C-type）method
2 .5 6 .5
74
11 0
22
136
142 137
Figure 5.8 Front view diagram（C-type）
Figure 5.9Right view diagram（C-type）
68
2× M 4 安 装 螺 孔
Screw installation holes 2XM4
Screw installation hole M4
M4 安装螺孔
80
32
77
Figure 5.10 Back view diagram（C-type）
Figure 5.11Buttom view diagram（C-type）
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Manual of intelligent （self-powered）integral protection device ST260E
允 许 拧 入 深 度 ≤6m m
3 9 .5
图 5.12 建议安装方式图（C-型）
Figure 5.12 suggested installation method diagram（C-type）
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Manual of intelligent (self-powered) protection device ST260E
5.2Wiring
A
B
C
QF
TQ
*
*
*
1D
2D
*
GND
1
2
Ib*
-
I1
5V
Ib
Ic*
I2*
24V
3
4
5
Ic
6
I3*
I0*
7
I3
I0
8
I2
9
10
*
I1*
6
supply
5
7
2
+
*
power
4
1
Ia
ACinput circuit
3
Ia*
*
8
11
A/T
COM
S1
S2
RA
R
RB
TRIP+
TRIP-
External contacts
B/R
G
3D
Binnary input Signal contacts Tripping
13
14
Communication
port
12
1
2
3
-KM
+KM
4
5
Inditactor
6
7
8
ST260E
Fig.5.8 Schematic diagram of terminal wiring
Note：1、As shown in diagram above, terminals 2D-1 - 2D-6 is shown three-phase current
input-mode, besides, two-phase input mode is allowed.
2、As shown in diagram above, input-terminals 1D-5~1D-10 for CT windings is
three-phase input mode, besides, two-phase or single input is allowed. If non-three-phase mode
is adopted, free phase current terminal should be empty without wiring.
3、 As shown in diagram above, terminals 1D-3 and 1D-4 are used for inputting
auxiliary power, which voltage type is DC24V or DC48V.
4、When one winding of CT is used to power-supply for device, other equipment
could not connect it.
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Manual of intelligent （self-powered）integral protection device ST260E
6. Description of setting parameters
Three types of parameters should be set in device, one type is system parameters, one type is
value parameters, and the last one type is channel parameters. Three type parameters could be
respectively set in system, value and calibration menus. Calibration parameters are used to
compensate AC channel of hardware, and it will finish setting before shipment, so we just
introduce setting parameters of value and system menus below.
6.1System parameters
Before putting into operation, please input parameters correctly to ensure normally running
of device, system parameters are shown as followings:
No.
1
2
3
4
5
6
Parameters name
displaying language
(For short）: Language
Rated frequency
(For short）: R Freque.
Inherent action time
(For short）: open time
Impulse width
(For short）: pul. Width
Impulse output mode
(For short）:Pul. Style
Ratio of phase CT.
(For short）:CT Ratio
Parameters description
Setting language of interface.
Setting Rated frequency of AC
quantity.
Setting inherent action time of
circuit breaker.
Setting impulse width of tripping
output.
Setting impulse mode of tripping
output.
Setting scope
Chinese /English
(For short）: Chinese/Eng.
50Hz/60Hz
0~90ms
30~90ms
Single /continuous
Short for: 1/N
Setting ratio of phase CT in device. 0~9999
External
Zero sequence input mode Setting inputting mode of zero
sampling/internal
(For short）:ZS Input
sequence current.
calculation
Ratio of zero sequence CT. Setting ratio value of zero sequence
8
0~9999
(For short）:ZS Ratio
CT.
7
Secondary
9
Displaying mode of data.
(For short）:Display
Setting data displaying mode of
value
interface.
10
Filtering of binary input
(For short）:DI filter
Communication protocol
(For short）:Protocol
Protocol mode
(For short）:Mode
Protocol parameters
(For short）:Parameters
Protocol parameters
(For short）:Alarm out
Setting time delay of filtering for
binary input.
Setting
protocol
of
RS485
communication.
Setting
protocol
mode
of
communication.
Setting protocol parameters of
communication.
Setting weather switching alarm
output function.
11
12
13
14
9
value/primary
(For short）:sec. / Pri.
0~9999ms
Modbus/IEC101/IEC103
/none
direct/ mbtcp
0~99999，default11127
On/off
Manual of intelligent (self-powered) protection device ST260E
Communication address
15 (For short）:
Address
Communication band rate
16
(For short）:Baud rate
Checking mode
17
(For short）:Checker
18
Displaying contrast
(For short）:Contrast
19
Operation password
(For short）:Password
Backlight color switch
(For short）:BL switch
S1 definition
S2 definition
Equipment date
(For short）:Date
Equipment time
(For short）:Time
Software version
(For short）:Firmware
20
21
22
23
24
25
Setting
address
communication bus.
of
RS485
Setting band rate of RS485
communication bus.
Setting checking mode of RS485
communication.
Setting contrast of LCD changed
with ambient temperature to get
optimal value.
Setting password of authorization
menus.
Setting whether switching backlight
color.
Setting definition of binary input s1.
Setting definition of binary input s2.
0~254
1200/2400/4800/9600/14
400/19200bps
None/odd/even
0~9
0000~9999
On/off
Shown in section 4.4 of
chapter 4.
Setting equipment date in device.
Setting equipment time of system
clock..
Setting software version of device.
Referring to displaying
version in device.
Note: 1、Both ratio parameters of phase CT and zero sequence CT are value. For instance: aiming
to 500A/5A CT, setting value 100 is achieved via 500 divided by 5.
2、Parameter of data displaying mode is valid only in run menu, data in other menus such
as value, event, calibration displays in secondary value manner.
3、Inherent action time is defined time-delay which from coil of circuit breaker powered
on until its corresponding contacts open, setting value is usually set 50ms in default. Real action
time of device is equalized value that setting value of function time minus inherent action time of
breaker.
6.2Value parameters
Value parameters contain control parameters of functions introduced in chapter 4. Please set
correctly.
No.
1
2
Value name
Setting instruction
Functions
Surge current blocking
To set value with two choices “switching on” Surge current
On/Off
blocking
or “switching off”.
(for short：Inrush. On/off）
function
Setting value of surge current
(for short：
To set percentage value with scope: 0~100%.
blocking
Inrush.)
(for short：Inrush. Value）
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Manual of intelligent （self-powered）integral protection device ST260E
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
11
Switching Return event
(for short：
Return Event On/off）
To set value with two choices “switching on”
or “switching off”.
Return even
Interphase Instantaneous
To set value with two choices “switching on”
On/Off
or “switching off”.
(for short：I>. On/off）
Interphase
Current value of
instantaneous
To set current value with scope: 0~50A.
(for short：
instantaneous
I>.）
(for short：I>. Current）
Time-delay value of
instantaneous
To set time-delay value, with scope: 0~600s.
(for short：I>. delay）
Limited instantaneous On/Off To set value with two choices “switching on”
(for short：I>>. On/off）
or “switching off”.
Interphase
limited
Current of limited
instantaneous
To set current value with scope: 0~50A.
instantaneous
(for short：
(for short：I>>. Current）
I>>.）
Time-delay of limited
To set time-delay value, with scope: 0~600s.
instantaneous
(for short：I>>. Delay）
Selecting curve of interphase To set curve with five choices “definite” or
“Normally inverse” or “Very inverse” or
overcurrent
(for short：I>>>. Curve）
“extremely inverse” or “exit”.
Phase to
Current of overcurrent
phase
To set current value, with scope: 0~50A.
function
overcurrent
(for short：I>>>. Current）
protection
Time-delay of interphase
(short for：
To set time-delay value, with scope: 0~600s.
overcurrent function
I>>>.）
(for short：I>>>. Delay）
Time multiplier of interphase
To set time-multiplier value, with scope:
overcurrent
0.05~20.
(for short：I>>>.Time MUL）
Zero sequence overcurrent
To set value with two choices “switching on”
1 ON/OFF
Zero sequence
or “switching off”.
(for short：I0>. On/off）
overcurrent 1
Current of zero sequence
protection
overcurrent 1
To set current value, with scope: 0~5A.
(for short：
(for short：I0>. Current）
I0>>>.）
Time-delay of zero sequence
overcurrent 1
To set time-delay value, with scope: 0~600s.
(for short：I0>. Delay）
To set curve with five choices “definite” or
Selecting curve of zero
Zero sequence
“ Normally inverse ” or “ Very inverse ” or
sequence overcurrent 2
overcurrent 2
(for short：I0>>. Curve） “extremely inverse” or “exit”.
protection
Current of zero sequence
(for short：
To set current value, with scope: 0~5A.
overcurrent 2
I0>>>.）
(for short：I0>>. Current）
Manual of intelligent (self-powered) protection device ST260E
19
20
Time-delay of zero sequence
overcurrent 2
To set time-delay value, with scope: 0~600s.
(for short：I0>>. Delay）
Time multiplier of zero
To set time multiple value, with scope:
sequence overcurrent 2
0.05~20.
(for short：I0>>. Time MUL）
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Manual of intelligent （self-powered）integral protection device ST260E
7. Operation of human machine interface (HMI)
Operation mode of HMI is realized via two approaches. One is using HMI which contains
indicators, light-tough board of button and large LCD screen; the other one is adopting
debugging assistance software in background to realize interaction operation. We only introduce
HMI operation here.
In below half section of front panel, there are four light–touch buttons contain “ENT”
button, “↑/+”button, “↓/-”button and “→”button.
“ENT” button is used to entering submenu or exiting from main menu.
“↑/+”button is used to move cursor one bit up or plus one for modifying parameter.
“↓/-”button is used to move cursor one bit down or minus one for modifying parameter.
“→”button is used to move cursor one bit towards right.
When Line feeder without electricity power, pressing a round button at bottom of front
panel, then powered by high energy lithium battery self-carried, device will start up and enter
debugging status, users can make operation of checking, setting and etc. If it takes 20 seconds
without pressing round button for the second time, device will auto cut off battery power.
LCD screen adopts hierarchical displaying manner, main function menus includes Monitor,
System, Value, Event, Calibration and Output. Let us introduce different menu respectively.
7.1Monitor menu
As device is powered on, LCD screen entering monitor menu automatically. Real time AC
quantity and binary input state are displayed at the top six rows of screen. If position of breakers
or stored energy signal is defined for binary input in system menu, then corresponding icon will
be shown at the first row of HMI; if switching on reclosing function, reclosing charging state
icon will be displayed, as charging battery at the first row.
As shown in fig.7.1, displaying data in screen will be renewed once per second. This menu
includes four screens to display data, one screen data roll out automatically per ten seconds, as
well as exchanging data between two screens via “↑/+”button and “↓/-”button.
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Manual of intelligent (self-powered) protection device ST260E
Fig.7.1 Monitor menu
Fig.7.2 Main menu
7.2Mian menu
In monitor menu, pressing “ENT” button can enter main menu shown in Fig.7.2.
Main menu includes six items as monitor, System, value, event, calibration, output menu.
Selecting menu in demand by shifting “↑/+”button and “↓/-”button, and cursor background color
is black, then pressing “ENT” button to enter submenu pointed by cursor.
7.3System menu
Fig.7.3 Browsing/modification menu
Fig.7.4 input password
Fig.7.5 system menu
Entering system menu from main menu, fistly, LCD will display choice: “browse”and
“modify”. If “browse” is chosen, system data is shown directly, customer only browse
parameters here; if “modify” is selected, setting parameters can be operate, firstly, inputting
password correctly, then entering modifying state of system menu.
In “browse” or “modify” selection interface, firstly, shifting selection by “↑/+”button and
“↓/-”button, secondly, confirming selection via pressing “ENT” button. In interface of inputing
password, firstly, entering modification state and choosing bit to modify, then, writing bit of
value in demand by
“↑/+”button and “↓/-”button, finally, confirming new password via
pressing “ENT” button. If you write error bit when inputing password, device will pop up “error”
message, and then return main menu automatically
At modification state of system men, firstly, selecting parameter modifying in demand by
“↑/+”button and “↓/-”button, then entering modification state via “→”button, and choosing bit
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Manual of intelligent （self-powered）integral protection device ST260E
to input, finnally writing bit of value via “↑/+”button and “↓/-”button. After inputting value,
cursor could be remove to selection state of parameters via “→”button, then chosing next
parametes in demand, finally, confirming all modification operation by pressing “ENT” button to
save parameters and exit system menu.
7.4Value menu
Fig.7.6 Value menu
Fig.7.7 Event menu
Both operation process of value ans system menus are same: fistly choosing “browse” or
“modify”, then inputing password, finally entering display state fixedvalue.
Protection type of observing fixed value is diaplyed on top row.
Order number /total number of fixed value obseved on bottom row state.
All voltage and current setting value are described by secondary value.
7.5Event menu
Entering event recond menu shown as fig,7.7.
Device record and display the latest 100 event record. Each even record contains time
stamper with millisecond accuracy and te The maximum number of event record is 100. Each
record carries timestamp with accurarcy of millisecond and two sreen data to display, event tye
and occusion time stamper will be displayed in the first screen; AC quantities of event will be
displyed in the second screen,
. Checking each data via “↑/+”button and “↓/-”button and Checking different screen data of
each record via“→”button.
All voltage and current value in even menu are described by secondary value.
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Manual of intelligent (self-powered) protection device ST260E
7.6Calibration menu
Fig.7.8 Calibration menu
Fig.7.9 Output menu
In order to eliminate each AC input channel difference caused by unconsistent of hardware,
device set calibration menu, to adjust channel balance using software. Operation process of
calibration is same with system.
Various correctly calibration parameters have been input before deliverying products from
manufactory. Do not enter this menu randomtly, to avoid making error modification operation,
unless device sent fault signal or douting inaccuracy of channel menasurement. If you entered
calibration menu by mistake, please press “ENT” button directly to return main menu.
Note: Aiming to avoid error action, when modifying parameters in device, device will exit
all protection functions automatically while HMI entering on modifying state of any kind of
parameters. So after finishing modification, device should return to main menu or monitor
menu to ensure switching on protection functons timely.
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Manual of intelligent （self-powered）integral protection device ST260E
8. Manual version
Version
Old
New
1.06
1.07
17
Software
Date
Modification
2020-02-14
To fix bug of old software V1.0025.
version
V1.0026