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Syncrocloser - Model M-5625 -Digital Synchronizing System
Integrated Synchronizing System for Generator and Intertie Synchronizing. Facilitates standardization for generator and system intertie sync check applications. Assure safe and accurate connection of a generator to the power network. Provides accuracy and independent controls; no additional instrumentation is required for field setting. Breaker closing times are field programmable. Local and remote serial communications (MODBUS protocol) capability for monitoring and control functions.
The M-5625 Syncrocloser Digital Synchronizing System is suitable for the automatic synchronizing of a generator to the electric power network. The system provides speed and voltage "jogs" to bring a generator to proper conditions of matching voltage and frequency, prior to safely and accurately closing a breaker into a bus energized by an electric power network.
The Digital Synchronizing System is intended for three general classes of application:
- Initial connection of a generator to a power network
- Closure of a network breaker where there is a possibility of a split of the system into two isolated networks having different frequencies
- Breaker closure applications with a static phase angle
- Automatic Synchronizing
- The system can also be used for manual synchronizing application.
When the M-3410A relay is connected with Line-Line voltage input, the following functions are available (refer to the Specification for wiring connections).
- SyncCheck with Phase Angle, DV and DF with dead line/dead bus options (25)
- Reconnect enable (79) for intertie application
- Phase undervoltage (27) detection
- Dual-setpoint, single or three phase, directional power monitoring that can be selected as over power or under power (32) detection (requires current transformer input)
- Negative sequence overvoltage (47) detection
- Phase overcurrent (51) detection (requires current transformer input)
- Phase overvoltage (59) detection
- VT fuse-loss detection and blocking (60FL)
- Four-step over/under frequency (81) detection
If a line-neutral is applied to the single VT input of the M-3410A only the Synch-Check (25) Function is viable. The (51) Function may also be active for this voltage configuration if current input is connected as well.
- Selectable Anti-Motoring and Anti-Pump
- Adjustable Jog Durations, proportional to error, for Voltage and Speed Controls
- Time Between Jogs adjustments bring the generator to a matched condition in minimum time and eliminate overshoot and hunting by accounting for inertial and control lags
- Kicker Pulse brings phase angle around through zero if speed is matched but synchronism has not yet occurred. Adjustable pulse duration compensates for the sensitivity of the governor.
- One Auto-sync output, two SyncCheck outputs, one self-test output, two enable inputs, and two control/status inputs
- Oscillographic recording (COMTRADE file format)
- Time-stamped sequence of events recording for 32 events
- Metering of Voltage, Delta Voltage, Frequency, Delta Frequency, Phase Angle, Current and Sync Scope indication
- One RS-232 port (COM1) on front and one RS-232 or 485 port (COM2) on rear
- M-3810A IPScom For WindowsTM Communications Software
- MODBUS protocol
- Supports both 50 and 60 Hz applications
- Accepts 1A or 5 A rated CT inputs
- Continuous Self-Diagnostics
Optional Features
- M-3801D IPSplot PLUS Oscillograph Analysis Software
- Horizontal and Vertical panel mount versions available
- Standard 19" Rack Mount Available