SID-2CM Microcomputer Synchronization Device SID-2CM generator line multiplexing microcomputer synchronization
device
Main Functions - Twelve channels for 1-12 units power generator or power lines
paralleling in a single device, with type and attribute distinction
- Configurable parameters: breaker time, allowable voltage
differential, over voltage protection value, allowable frequency
difference, frequency control coefficient, voltage control
coefficient, allowable power angle, incomer and busbar TV rated
voltage, shift busbar TV phase angle, low voltage lock values,
single or both sides no-voltage operation, synchroscope function,
control pulse width for same frequency, breaker name
- Ensures first zero phase differential seizure during differential
paralleling (generator to busbar or synchronous lines) for
impact-free paralleling
- Fast generator paralleling using fuzzy control theory to bring
frequency and voltage differentials within allowable ranges
- Automatic distinction between differential frequency and identical
frequency paralleling for synchronous lines
- Automatic self-testing during operation with error alarm and
display
- TV open-circuit alarm with synchronization and non-voltage closing
lockout
- Automatic acceleration control instruction during identical
frequency generator paralleling to prevent anti-power paralleling
- Display of breaker circuit closing time measurements and last eight
recorded values per channel
- Communication interfaces (RS-232, RS-485) for integration with DCS
systems
- Robust operation in harsh conditions through electromagnetic and
photoelectric insulation
- Automatic adaptation to 48V-220V AC or DC power supply
- Built-in testing modules for direct checking without additional
apparatus
- No-voltage closing from host computer instructions or front panel
operation
- Intelligent synchroscope functionality
Technical Specifications - TV secondary voltage: 100V or 100/√3V, or mixed line/phase voltage
configurations
- System-side TV voltage with settable phase angle at all parallel
points - no separate transformers required
- All digital inputs: normally open type connection points for
parallel point choice, remote reset, breaker auxiliary contacts
- Digital output: normally open contact of petty electromagnetic
relays, capacity 220V AC 5A or 220V DC 0.5A
- Dual communication ports: RS-232 and RS-485
- Power supply: 48-220V AC/DC, maximum power consumption 20W
- Insulation ratings:
- Weak current circuit to earth: 500V 50Hz for one minute
- Power current circuit to earth: 2000V 50Hz for one minute
- Between weak current and power current circuits: 1000V 50/60Hz for
one minute
- Operating environment:
- Temperature range: Operation 0 to +50°C; Transport/storage -20 to
+70°C
- Maximum humidity: 90%
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