GEK-105593C
9
2.2. MONITORING AND REGISTERING FUNCTIONS.
2.2.1. MEASUREMENT
The SMOR system offers the following metering capabilities:
- Three-phase and ground current.
- Negative sequence current.
- Phase-to-phase voltages.
- Active and reactive power.
- Power factor.
- Frequency.
The RMS value for currents and voltages is calculated for each phase, and the phase-to-phase voltages are
calculated from the phase to ground voltages. The active and reactive power are also computed on these
values. The active and reactive power, and the power factor are only shown as three-phase values.
These measurements can be accessed locally on the liquid crystal display (LCD) on the front of the relay, or
via the GE-LOCAL communication software.
The SMOR unit has a demand register, as well as a maximeter register for current and active power. For the
demand register, the maximum and average RMS current are calculated over a selected period of 15, 30 or
60 minutes corresponding to the last 24, 48 or 96 hours respectively. The maximeter register computes the
maximum value for current and power for periods which are the same as those selected for the demand
register.
2.2.2. ASSOCIATED BREAKER STATUS
SMOR system monitors breaker status associated to the unit with a digital input (52/b). The breaker status
can be accessed using the local MMI or the communication software, which shows the breaker status in real
time through a visual simulation of the line.
2.2.3. LED INDICATORS.
An internal states matrix stores the digital information for all the units (inputs, pick-ups, alarms, etc). The
digital signals on this matrix are grouped in groups of 16 signals; there are 10 groups; It is a 10 x 16 matrix;
the final group corresponds to the 16 AND gates definable using the programmable logic of GE-INTRO
software.
The SMOR unit has a total of 17 LED indicators, one fixed bicolor assigned to the critical alarm function of
the unit and 16 red LED indicators, arranged in two columns of 8 LEDs. They can be configured using the
GE-INTRO configuration software to any of the user definable alarms (32 protection alarms and 16
communication alarms) assigned from among the protection and communication states. To define each
alarm, the user can use 16 inputs OR gates. All the inputs to an OR gate must belong to the same group in
the states matrix. Similarly, each LED can be configured to have memory in the absence of auxiliary power
supply (the status of the LED with memory is registered on the EEPROM memory). They can also be
configured to blink when turned on.
There is a test option for the LEDs, lighting them all up when the TARGET RESET button is pressed. When
this button is held down the LED indicators are reset.
The SMOR units are supplied from the manufacturer with the following default configuration of the LEDs:
Summary of Contents for SMOR-B GEK 105593C
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Page 89: ...GEK 105593C 84 FIGURE 1 PANEL DRILLING DIMENSIONS FOR 19 RACK MODELS 226B6086H10 ...
Page 91: ...GEK 105593C 86 FIGURE 3 INVERSE CHARACTERISTIC OPERATING CURVE 226B7414H1 ...
Page 92: ...GEK 105593C 87 FIGURE 4 VERY INVERSE CHARACTERISTIC OPERATING CURVE 226B7414H2 ...
Page 93: ...GEK 105593C 88 FIGURE 5 EXTREMELY INVERSE CHARACTERISTIC OPERATING CURVE 226B7414H3 ...
Page 94: ...GEK 105593C 89 FIGURE 6 RECLOSER PROGRAM FLOWCHART 226B2200H1 ...
Page 95: ...GEK 105593C 90 FIGURE 7 FRONT VIEW FOR 19 RACK MODELS 226B7412H9 ...
Page 96: ...GEK 105593C 91 FIGURE 8 FRONT VIEW FOR 1 2 RACK MODELS ...
Page 97: ...GEK 105593C 92 FIGURE 9 EXTERNAL CONNECTIONS FOR 19 MODELS 189C4101H1 ...
Page 100: ...GEK 105593C 95 FIGURE 13 REAR VIEW FOR 19 MODELS 226B7412H10 ...
Page 102: ...GEK 105593C 97 FIGURE 15 DIMENSIONS DIAGRAM FOR 19 MODELS 226B6086H10 ...
