5. USER INTERFACE PANEL
5.1. Construction
Panel consists of 8 sections as below; y Operation section
y Local control section y Menu control section y Other control section y Fault indication section y Voltage elements section
y Reclosing Sequence status section y System diagnostic section
y Battery status section y User LED section y Other status section
5.1.1. Operation Section
OPEN
Pressing OPEN push-button sends a trip signal to the Recloser.
CLOSE
Pressing CLOSE push-button sends a close signal to the Recloser.
Units operating with firmware version 2.18 or later have a feature of Close Time Delay. The Close Time Delay allows a delay of 0.00 to 600.00 seconds after pressing the close push-button before closing the recloser.
POSITION LED
Indicates the position of the Recloser. Position indicator is based on the Recloser 52a contacts.
5.1.2. Local Control Section
All indicators show status of Control function. The indicators are continuously ON when the control function is enable and the indicators are continuously OFF when control function is DISABLE. The push-button toggles Enable/Disable
PROTECTION ENABLED
All Protection elements are enabled
GROUND ENABLED
Ground Protection elements are disabled
SEF ENABLED
SEF Protection elements are disabled
RECLOSE ENABLED
Reclose function is enabled
CONTROL LOCKED
Front panel function is unlocked
REMOTE ENABLED
Remote control is disabled
ALTERNATE SETTINGS
Alternate setting is disable Primary Setting is enable
LOOP CONTROL ENABLED
Loop control function is enabled
LOOP CONTROL AUTO RESTORE
Auto restoration function of is enabled
HOT LINE TAG
Hot Line Tag function is disabled
Figure 5-3. Local Control Section
Protection Enabled
When illuminated, all protection elements are enabled. The enabled protection condition can be disabled by pressing the Protection Enabled push button on the front panel.
NOTE : If “PROTECTION ENABLED” is ON, all protection elements are operating, however, Ground Overcurrent Protection Element and Sensitive Earth Fault Protection Element are individually set for enable or disable on front panel by LED ON/OFF button.
Ground Enabled
LED is ON and OFF by pressing a button. “PROTECTION ENABLED” LED is ON and GROUND ENABLED LED is ON, Ground Overcurrent Protection element operates. However, Even if “GROUND ENABLED” is ON and “PROTECTION ENABLED” LED is OFF, Ground protection does not operate. If “GROUND ENABLED” is OFF, “PROTECTION ENABLED” is ON, ground protection does not operate.
SEF Enabled
LED is ON and OFF by pressing a button. “PROTECTION ENABLED” LED is ON and SEF ENABLED LED is ON, sensitive earth fault protection element operates. However, Even if “SEF ENABLED” is ON and “PROTECTION ENABLED” LED is OFF, sensitive earth fault protection does not operate. If “SEF ENABLED” is OFF, “PROTECTION ENABLED” is ON, sensitive earth fault protection does not operate.
Reclose Enabled
When Reclose Enable LED is on, the reclose(79) element is enabled. The enabled reclose element can be disabled by pressing the Recloser Enabled push-button on the front panel.
Control Locked
When Control Locked LED is on, all functions in operation section and all functions in Local control section are locked. These can be unlocked by pressing the Control Locked push-button on the front panel
NOTE : Even though Control Locked function is locked, OPEN, Lamp Test, Battery Load Test and menu control section can be normally operated.
Remote Enabled
When Remote Enabled LED is on, all remote control functions (e.g. SCADA system) are enabled. This can be disabled by pressing the Remote Enabled push-button on the front panel. SCADA control refers to supported communications protocol such as DNP3.0
Alternate Enabled
When Alternate Enabled LED is on, the Alternate setting is activated. When Alternate Enabled LED is off, the primary setting is activated. Activated group on display, is applied to ‘GROUP Setting’.
Loop Control Enabled
When Loop Control Enabled LED is on, loop control function is enabled. SEC, MID can be selected on CLOSE status and TIE can be selected on OPEN status.
Loop Control Auto Restore
When Loop Control Auto Restore LED is on, auto restoration function is enabled. Auto restoration function is, after loop control operation, Auto Ret’ T” timer operates till timeout, and restores the preset values.
Hot Line Tag
When Hot Line Tag LED is on, the Hot Line Tag function is enabled.
5.1.3. Menu Control Section
ETR300-R has 20×4 LCD(Liquid Cristal Display) display.
LCD DISPLAY
4x20 Characters display
CONTROL KEYS [▲] [▼] [◀] [▶]
Arrow keys are used for the moving between the menu window and the changing of the setting value
[▲] (METER) : Up arrow key is used to move to the meter menu, operable in menu starting mode [▼] (AWAKE) : Down arrow key is used for panel awake from sleep mode
[◀] (EVENT) : Left arrow key is used to move to the event menu, operable in menu starting mode [▶] (SET) : Right arrow key is used to move to the setting menu, operable in menu starting mode [FUN] : To move to main menu when present mode is in starting mode
[ESC] : To cancel for data input mode or return the display to the previous level [ENT] : To select sub menu or data input
Figure 5-4. Menu Control Section
[FUN] Key
Press [FUN] key to enter Main menu for displaying information or changing settings. [FUN] key is also used to display a help message in setting change mode and to cancel the help message display.
[ESC] Key
The ESC key can be used to cancel data input mode and return to the previous menu.
[ENT] Key
ENT key is used to select a menu by using Up and Down arrow key. Enter key is also used to accept a new setting by using Up or down arrow key.
[◀] [▶] Key
Use the left and right arrow keys to move cursor when you are in the data input mode and when you change display message.
[▲] [▼] Key
Use Up and Down arrow keys to move through the various menus and to decrease or increase value when you are in the data input mode.
5.1.4. Other Control Section
BATT’ CHECK
Push-button for battery load test. Battery alarm setting, refer to TD menu.
TRIP TEST
Push-button for trip test. By pressing this butoon, fault simulation is activated like 1500A of fault current flow in phase A, B, C. Protection function is operated according to the user setting .
FI RESET
Reset fault indication/Lamp test
Figure 5-5. Menu Control Section
5.1.5. Fault Indication Section
On fault detection, protection elements and phase are displayed which detects more than overcurrent set level.
y Phase Time Over-current Elements – Fast/Delay y Phase High Current Trip Elements
y Phase Definite Time High Current Lockout Elements y Ground Time Over-Current Elements – Fast/Delay y Ground High Current Trip Elements
y Ground Definite Time High Current Lockout Elements y Sensitive Earth Time Over-Current Elements
y Negative Sequence Time Over-Current Elements - Fast/Delay
y Negative Sequence High Current Trip Elements
y Negative Definite Time High Current Lockout Elements y Phase, Ground, Sensitive Earth and Negative Directional
Control
TRIP TYPE
y 51 FAST/DELAY : Shows delay trip
y 50 INSTANTANEOUS : Shows high current trip y 50 HIGH CURRENT : Shows high current lockout
FAULT INDICATION
y A, B, C FAULT : Indicates an over-current fault has occurred on one of the phase lines y GROUND : Indicates an over-current fault has occurred on the neutral line
y SEF : Indicates a sensitive earth fault has occurred on the neutral line
5.1.6. Voltage Elements Section
Indicates that voltage pickup element is operated. y Two Under voltage Elements
y Two Over voltage Elements y Synchronism Element y Under frequency Element y Hot Line Elements
A Phase Unbalance : A phase angle difference detected
B Phase Unbalance: B phase angle difference detected
C Phase Unbalance: C phase angle difference detected
ABC/RST LIVE : Source and load side live line status
Figure 5-7. Voltage Elements Section
VA/VR, VB/VS, VC/VT : Each phase Phase Open/Loss Status
5.1.7. Reclosing Sequence Status Section
Indicates the current status of programmed sequence procedure.
79 RESET : Sequence shows resetting
79 CYCLE : Sequence shows running
79 LOCKOUT : Sequence shows lockout
Figure 5-8. Sequence Status Section
VA / VR VB / VS VC / VT B Phase Unbalance A Phase Unbalance C Phase Unbalance ABC / RST LIVE
5.1.8. System Diagnostic Section
Indicates Diagnostic status of the ETR300-R. RUN LED(green) indicates the ETR300-R has successfully passed its internal diagnostic test. DIAG/ERROR LED(Red) indicates the ETR300-R has failed its internal diagnostic test. RX/TX LED(Red) shows Communication status of ETR300-R.
RUN
Status of ETR300-R systems shows normal
DIAG/ERROR
Status of ETR300-R systems shows warning
RX
Shows the data receiving status for remote communication.
Figure 5-9. System Diagnostic Section
TX
Shows the data transferring status for remote communication.
NOTE : RUN LED is blinking when system functional status is normal
5.1.9. Battery Status Section
Indicates the system power status of the ETR300-R. AC SUPPLY indicates the ETR300-R has external power source. CHARGER LED shows ETR300-R charging status, BATTERY LED shows ETR300-R battery status.
AC SUPPLY
Status of supplying the external AC power.
CHARGER
If Charger LED is On, charger is normal status. Charging voltage is always monitored, refer to TD menu for detail.
BATTERY
If Battery LED is On, battery is normal status.
To check the battery, do battery load test and check LED status.
5.1.10. User LED Section
Status of PLC logic which is set by a user is displayed. PLC logic is set in ‘ETR300-R interface software’. Factory default setting is as follows.
Figure 5-11. User LED Section
Table 5-1. Default User LED Function
LED No Name Descrpition
L1 MLOCK L1 becomes ON when handle is locked.
L2 GASLOW +
GASHIGH
L2 becomes ON when gas pressure is low or high.
L3 DSPLINK L3 becomes ON when dsp bord linked.
L4 CPULINK L4 becomes ON when communication bord linked.
5.1.11. Other Status Section
REVER POWER
When reverse current flows, REVERSE POWER LED becomes On. Reverse power is determined by 3-phase power factor.
CLPU ON
In the Cold Load Duration, CLPU ON LED becomes On.