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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