Catholic Workers (1875-1930)
El 8 de febrero de 1928 se nombra interinamente al director de la Banda Municipal de Música Alfredo Javaloyes López, con la gratificación mensual de
6. ESCUELA NOCTURNA Y DOMINICAL DE OBRERAS CATÓLICAS
5.3SYSTEM SETUP
This section shows the settings related to the system setup definition.
5.3.1 GENERAL SETTINGS
This section determines the settings of the element configuration regarding its connection to the power system.
Access to these settings using the EnerVista 650 Setup software is at Setpoint > System Setup > General settings.
The corresponding settings are shown on the table below:
Table 5–20: GENERAL SETTINGS
The system rated voltage is used as reference by the voltage restraint in the phase timed overcurrent element.
The Frequency reference marks the voltage channel to which the system Frequency is measured.
The auxiliary voltage setting can be selected between VN and VX.
VN means that all elements using neutral voltage will take the value directly from the fourth voltage input.
VX means that all elements using neutral voltage will take the value calculated from phase voltages.
5.3.2 FLEX CURVES
The relay incorporates 4 user curves called Flex Curve A, B, C and D. The points for these curves are defined by the user in “Setpoint>System Setup>Flex Curves” menu in EnerVista 650 Setup. User defined flex curves can be selected as an operation curve in all the time overcurrent functions in the relay.
In the flex curves menu there are 120 points to define a user curve. 40 points for reset (from 0 to 0.98 times the pickup value) and 80 for operate (from 1.03 to 20 times the pickup).
SETPOINT > SYSTEM SETUP > GENERAL SETTINGS
setting Description Name Default Value Step Range
Phase CT ratio Phase CT Ratio 1.0 0.1 [1.0 : 6000.0]
Ground CT ratio Ground CT Ratio 1.0 0.1 [1.0 : 6000.0]
Sensitive ground CT ratio Stv Ground CT Ratio 1.0 0.1 [1.0 : 6000.0]
Phase VT ratio Phase VT Ratio 1.0 0.1 [1.0 : 6000.0]
Phase VT connection Phase VT Connection WYE N/A [WYE – DELTA]
Rated voltage Nominal Voltage 100.0 0.1 [1.0 : 250.0]
Rated Frequency Nominal Frequency 50 Hz N/A [50-60]
Phase rotation Phase Rotation ABC N/A [ABC – ACB]
Frequency reference Frequency Reference VI N/A [VI-VII-VIII]
Auxiliary Voltage Auxiliary Voltage VX N/A [VX – VN]
Snapshot Event generation Snapshot Events DISABLED N/A [DISABLED – ENABLED]
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Table 5–21: FLEX CURVE SETTINGS
The definition of the curve points can be introduced directly in the Flex Curve settings menu. Alternatively they can be created using the graphical tool provided by pressing “Edit Curve” in the Flex curves menu in EnerVista 650 Setup.
In the user curve edit screen (see Figure 5–2:), a base curve can be selected, from the Standard Curves menu. This curve will be used as a template to create the user curve. Once the standard curve is viewed, it is possible to make the user curve (operate, reset or both) reconcile the standard curve, using the Flex curve > set flex curve from the standard curve, and then modifying any of the points by editing in the table the corresponding value.
The user can also view a different curve model to the one the FlexCurve has been adapted to, and compare both models to adopt the most appropriate values in each case. If once the user curve has been configured, the user wants to store the information, the “Flex Curve > Exit with Data” menu must be selected. If the results are not to be saved, the Exit without Data option must be selected. Now, calculated points must be saved in the Flex Curve using the “Store” option.
Figure 5–2: FLEXCURVES EDITION SETPOINT > SYSTEM SETUP > FLEX CURVES
FLEX CURVES A > FLEX CURVES B> FLEX CURVES C > FLEX CURVES D
setting Description Name Default Value Step Range
Values for reset points 0.00 pkp Time 0.00xPKP [RST] 0.000 0.001 s [0.000 : 65.535]
Values for reset points 0.05 pkp Time 0.05xPKP [RST] 0.000 0.001 s [0.000 : 65.535]
… … … … …
Values for reset points 0.97 pkp Time 0.97xPKP [RST] 0.000 0.001 s [0.000 : 65.535]
Values for reset points 0.98 pkp Time 0.98xPKP [RST] 0.000 0.001 s [0.000 : 65.535]
Values for operation points 1.03 pkp Time 1.03xPKP [OP] 0.000 0.001 s [0.000 : 65.535]
Values for operation points 1.05 pkp Time 1.05xPKP [OP] 0.000 0.001 s [0.000 : 65.535]
… … … … …
Values for operation points 19.50 pkp Time 19.50xPKP [OP] 0.000 0.001 s [0.000 : 65.535]
Values for operation points 20.00 pkp Time 20.00xPKP [OP] 0.000 0.001 s [0.000 : 65.535]
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5.3.3 BREAKER
There are two types of breaker settings:
Breaker settings: These settings correspond to the switchgear configured as a breaker in the F650; this switchgear is used in the recloser functions, breaker failure and synchronism.
Breaker Maintenance: These settings correspond to the initialization of the (KI)2t counters, and the counting of the number of openings and closings of the switchgear configured as a breaker.
5.3.3.1 BREAKER SETTINGS (SETPOINT > SYSTEM SETUP > BREAKER > BREAKER SETTINGS)
Table 5–22: BREAKER SETTINGS
Breaker settings are as follows:
Number of switchgear: This is the Number of the Switchgear that is configured as a breaker. It is the reference for breaker failure (50BF), recloser (79) and synchronism (25) elements. The selected switchgear in the breaker settings must be previously configured at Setpoint > Relay Configuration > Switchgear. The relay allows to configure up to 16 switchgear elements, but the one configured as a breaker will be the reference for (KI)2t, openings and closings counters.
Maximum (KI)2t: This is the maximum set value for the square of the current multiplied by the breaker opening time. There is a separate counter for each phase, but the value stored as the maximum is a single value for the three phases.
(KI)2t Integration Time: This is the integration time taken as the base (fixed opening time) for the calculation of (KI)2t.
Maximum Openings: This is the maximum number of openings allowed in the relay, with a limit of 9999; once this value is exceeded, the relay will produce an alarm. When the limit 9999 is reached the maximum openings counter will start form zero.
Maximum Openings in 1 hour: This is the maximum number of openings allowed in the relay during one hour; once this value is exceeded, the corresponding alarm signal will be activated; this value is updated and reset after one hour.
Snapshot Events: This setting enables or disables the snapshot event generation for the breaker signals.
The interrupted current limit setting, fixes the Maximum breaker capacity (this value is set depending on the information provided by the breaker manufacturer); the relay incorporates a (KI)2t counter for each phase, when a breaker opening occurs, the counter increases its value (in primary values). If the flowing current is lower than the rated current, the relay will take the rated current value for its calculations. When the accumulated counter for each phase reaches or exceeds the set value, the corresponding alarm signal will be activated.
SETPOINT > SYSTEM SETUP > BREAKER > BREAKER SETTINGS
setting Description Name Default
Value
Step Range
Number of Switchgear selected as breaker Number of Switchgear 1 1 [1 : 16]
Maximum value of (KI)2t Maximum (KI)2t 9999.99 0.01(KA)2 s [0.00 : 9999.99]
(KI)2t integration time (KI)2t Integ. Time 0.03 0.01s [0.03 : 0.25]
Maximum number of openings Maximum Openings 9999 1 [0 : 9999]
Maximum Openings in one hour Max.Openings 1 hour 40 1 [1 : 60]
Snapshot Event generation Snapshot Events ENABLED N/A [DISABLED – ENABLED]
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The purpose of this function is to provide closer information of the current status of the breaker’s internal contacts. This is, in order to ensure appropriate breaker maintenance, and to decrease the risk of damage when the breaker has suffered severe operations during a long time. Once the breaker has been operated, and the preventive maintenance is in place, the accumulated I2t values and the number of operations are reset to zero.
5.3.3.2 BREAKER MAINTENANCE
To consider used breakers, the relay allows to set initial I2t values as well as an initial number of operations, in order to take into account previous breaker operations, as well as operations produced during testing. Breaker maintenance parameters can be set in the breaker maintenance menu.
BREAKER MAINTENANCE (Setpoint > System Setup > Breaker > Breaker Maintenance) Table 5–23: BREAKER MAINTENANCE SETTINGS
In this group of settings, the start values of the breaker Counters can be set.
These Counters allow the breaker Maintenance. They are used to accumulate the breaker aging produced by a trip or a breaker opening. In order to incorporate the breaker’s history, in case of used breakers, the system allows assigning an initial value to accumulated amperes, and to the number of opening and closing operations.
To supervise breaker aging, Σ(KI)2t accumulated values are calculated and stored for each phase in each opening. If the rated current is not exceeded, as in the case of a manual opening command, without fault current, the relay uses the rated current instead of the measured value.
(KI)2t value is accumulated and maintained in independent Counters for each phase. Counters can be accessed through the local HMI as well as through the EnerVista 650 Setup software. The element incorporates a setting to select the integration time ((KI)2t Integ. Time).
The signals associated to the opened or closed status of the breaker can be monitored at “Actual > Status > Breaker”
Table 5–24: BREAKER STATUS
The signals associated to breaker maintenance can be monitored at “Actual > Status > Records Status > Breaker Maintenance”, and they are as follows:
Table 5–25: BREAKER MAINTENANCE STATUS
SETPOINT > SYSTEM SETUP > BREAKER > BREAKER MAINTENANCE
setting Description Name Default Value Step Range
(KI)2t Counter Phase A (KI)2t BKR Ph A Cnt 0.00 0.01 (KA)2 s [0.00 : 9999.99]
(KI)2t Counter Phase B (KI)2t BKR Ph B Cnt 0.00 0.01 (KA)2 s [0.00 : 9999.99]
(KI)2t Counter Phase C (KI)2t BKR Ph C Cnt 0.00 0.01 (KA)2 s [0.00 : 9999.99]
Openings counter BKR Openings Cnt 0 1 [0 : 9999]
Closings counter BKR Closings Cnt 0 1 [0 : 9999]
BREAKER STATUS DESCRIPTION
BREAKER OPEN Breaker in open position.
BREAKER CLOSED Breaker in close position BREAKER UNDEFINED Breaker undefined
BREAKER MAINTENANCE DESCRIPTION
(KI)2t PHASE A ALARM This signal activates when the set value for phase A is exceeded.
(KI)2t PHASE B ALARM This signal activates when the set value for phase B is exceeded.
(KI)2t PHASE C ALARM This signal activates when the set value for phase C is exceeded.
BKR OPENINGS ALARM Relay total Number of Openings alarm
BKR OPEN 1 HOUR ALRM Relay total Number of Openings in one hour alarm
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5.3.4 SWITCHGEAR
There is the possibility to enable or disable the generation of internal signals for the different elements (protection, control, inputs and outputs, switchgear) available in the device.
The configuration of snapshot events for each switchgear (enable or disable) can be selected at Setpoint > System Setup
> Switchgear.
Table 5–26: SWITCHGEAR SETTINGS BREAKER MAINTENANCE DESCRIPTION
RESET (KI)2t COUNTERS (KI)2t Counters reset signal. This signal is configured at Setpoint > Relay Configuration > Protection Elements, and it is used for resetting the (KI)2t counter through the corresponding signal, command, digital input, etc.
RESET BKR COUNTERS Reset signal for the Opening and Closing Counters. This signal is configured at Setpoint > Relay Configuration > Protection Elements, and it is used for resetting the breaker Opening and closing counters.
BREAKER OPENINGS Number of Breaker openings BREAKER CLOSINGS Number of Breaker closings
(KI)2t PHASE A Accumulated (KI)2t value for phase A ((KI)2t Counter for Phase A) (KI)2t PHASE B Accumulated (KI)2t value for phase B ((KI)2t Counter for Phase B) (KI)2t PHASE C Accumulated (KI)2t value for phase C ((KI)2t Counter for Phase C)
BKR OPENING TIME Maximum breaker Opening time. This signal is configured at Setpoint > Relay Configuration
>Switchgear in the number of switchgear corresponding to the breaker selection
BKR CLOSING TIME Maximum breaker Closing time. This signal is configured at Setpoint > Relay Configuration
>Switchgear in the number of switchgear corresponding to the breaker selection
SETPOINT > SYSTEM SETUP > SWITCHGEAR
setting Description Name Default
Value
Step Range
Snapshot Event generation for switchgear #1 Snapshot Events SWGR 1 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #2 Snapshot Events SWGR 2 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #3 Snapshot Events SWGR 3 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #4 Snapshot Events SWGR 4 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #5 Snapshot Events SWGR 5 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #6 Snapshot Events SWGR 6 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #7 Snapshot Events SWGR 7 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #8 Snapshot Events SWGR 8 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #9 Snapshot Events SWGR 9 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #10 Snapshot Events SWGR 10 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #11 Snapshot Events SWGR 11 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #12 Snapshot Events SWGR 12 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #13 Snapshot Events SWGR 13 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #14 Snapshot Events SWGR 14 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #15 Snapshot Events SWGR 15 DISABLED N/A [DISABLED – ENABLED]
Snapshot Event generation for switchgear #16 Snapshot Events SWGR 16 DISABLED N/A [DISABLED – ENABLED]