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Digital EPG speed governor
The new digital EPG controller works with solenoid-type electric actuators, such as the Woodward 512, 524, 1712 and 1724 EPG actuators, to provide precise speed control of diesel or gas engines.
Control parameters are configured via the built-in push buttons and display, or with a computer through the on-board RS-232 interface. The PID settings can be configured individually to optimize control.
Available in 12 or 24 Vdc models, the Digital EPG control allows for digital raise/lower and analog setpoint inputs and includes overspeed protection and two relay outputs.
The ESDR 4T unit offers three-phase current differential protection for generators, motors and transformers in unit connection.
Current transformers at both sides of the protection object(s) measure the individual conductor currents.
Any two-phases of three-phase short circuits and ground leakages are recognized by the ESDR 4T as fault currents.
The ESDR 4T affords design simplification of the switchgear cabinet, facilitates the commissioning, ensures the operation of the system is user friendly and increases the availability of the system.
For isolated power units, the new GCP-11 panel provides complete engine and generator control, as well as control logic for one power circuit breaker. The GCP-11 unit provides engine start-stop control, and also protects the engine and generator for speed, temperature, pressure, voltage, current, frequency, overload or other faults. The control includes a total of 12 digital inputs, 2 engine signal inputs, 1 magnetic pickup input, and 9 configurable relay outputs.
The unit's front panel displays generator and engine data, alarm and control LEDs, a user keypad, and a block diagram of the power system. The unit also can be connected directly to an external modem via a serial interface.
For emergency and stand-by power applications, the GCP-12 panel incorporates the features of the GCP-11, plus automatic mains failure operation and control logic for two power circuit breakers.
In addition to the engine protection features, the GCP-12 monitors both the generator and the utility for voltage, frequency.
The control includes a total of 12 digital inputs, 2 engine signal inputs, 1 magnetic pickup input, and 8 configurable relay outputs.
The GCP-20 is also designed for emergency and stand-by power applications, but controls the speed governor and voltage regulator to provide no-break transfer to and from the utility.
The GCP-20 monitors the generator and the utility and protects for voltage, current, frequency, active and reverse power, load imbalance, and overload faults. The engine is monitored for speed, temperature and pressure.
The control includes a total of 14 digital inputs, 4 engine signal inputs, 1 magnetic pickup input, and 4 configurable relay outputs. Additional inputs, remote control and analog speed/voltage bias signals are available as options.
The GCP-21 incorporates control and synchronizing logic for one circuit breaker and is well suited for isolated and mains parallel operation in stand-by, combined heat and power, and peak shaving applications.
Additional protection features include phase shift and reduced power faults.
The GCP-21 control includes a total of 14 digital inputs, 4 engine signal inputs, 1 magnetic pickup input, and 4 configurable relay outputs. Options include additional inputs and outputs, remote control capabilities, and analog speed/voltage bias signals.
The GCP-22 adds control logic for two circuit breakers, providing mains failure detection and transfer switch control. It also includes no-break transfer and soft load functions.
The most powerful of the new generator control panels - the GCP-31 and GCP-32 units - are similar in function to the GCP-21 and GCP-22 controls, but add load sharing and kVAR sharing capabilities for multiple-unit operation. They also incorporate a synchroscope on the front panel.
Standard I/O include 16 digital inputs, 7 engine or generator signal inputs, 1 magnetic pickup input, and 7 configurable relay outputs Available options include additional input/output, remote control, remote power set, and analog speed/voltage bias capabilities. A real-time clock and event recorder is also available.
MFR-1 multi-function relays provide monitoring and protection for a wide range of power generation and distribution applications. Each of the five available models protects for the designated faults, monitors and displays the generator or utility a.c. signals, includes one ANSI 74 alarm relay and 3 output relays, and is easily configured via the RS-232 interface.
The MFR-13/GP provides generator protection for over- and under-voltage, over- and under-frequency, and voltage asymmetry, plus reverse power, reduced power, overload, load imbalance, loss of excitation, cos phi, and independent overcurrent time protection.
MFR-15/SYN provides similar protection as the MFR-13/GP, but adds synchronization control across one circuit breaker, active power and cos phi control, load and VAR sharing, external setpoint control, and three configurable analog outputs.
MFR-12/CP provides generator protection for independent overcurrent time, inverse time current, and calculated ground faults.
MFR-11/MP provides utility protection for over- and under-voltage, over- and under-frequency, and voltage asymmetry faults.
MFR-11/G59 includes the utility protection features of the MFR-11/MP, and adds protection for phase/vector shift and df/dt faults.
The MFR Serie 1 is a family of microprocessor based protective relays that offer multiple protective features in a single package.
The MFR Series 1 use a new digital procedure to mesure rms values which enables a high measuring accuracy while being insensitive to harmonics, transients or disturbing pulses.
The MFR-12 is an over current protection relay with definite time tripping characteristics (three steps).
Typical MFR-12 applications are selective overload and short circuit protection for electrical machines, lines and networks.
The MFR-12 can also be used for load dependant connexion and disconnection of consumers and generators.
The MFR-12 simplifies the design of the switchgear cabinet, facilitates the commissioning, ensures the operation of the systems is user friendly and increases the availability of the overall system.
The MFR Serie 1 is a family of microprocessor based protective relays that offer multiple protective features in a single package.
Using a new digital procedure to measure rms values enabling a high measure accuracy, the MFR Series 1 is insensitive to harmonics, transients or disturbing pulses.
The MFR-13 is a complete generator protection device packaged into one compact relay. Typical applications are generators and switchgear equipment that require independent protection architecture.
The MFR-13 simplifies the design of the switchgear cabinet, facilitates the commissionning, ensures the operation of the system is user friendly and increases the overall system availability.
The MFR Serie 1 is a family of microprocessor based protective relays that offer multiple protective features in a single package.
The MFR Series 1 use a new digital procedure to mesure rms values which enables a high measuring accuracy, the MFR Series 1 is insensitive to harmonics, transients or disturbing pulses.
The MFR-15 products include a synchronizer and a load (kW) and power factor controller via Discrete Outputs.
The MFR-15/SY is for single unit applications while the MFR-15/SYN has kW load sharing capability for multiple unit applications.
Application of the MFR-15 allows for simplifying the design of the switchgear cabinet, facilitates the commissioning, ensures the operation of the systems is user friendly and increases the availability of the overall system.
Based on microprocessor technology, Woodward's MFR-2 protective relay incorporates functions and features for genset control in isolated or parallel utility operation-applicable to generators and switchgear equipement that require independent protection architecture.
The MFR-2 digitally measures rms values ensuring measurement accuracy-maintaining integrity against harmonics, transients or disturbing pulses.
Automatic Mains Failure recognition gives the MFR-2 complete generator protection in addition to frequency, voltage, active power and reactive power control allowing load sharing between as many as eight units.
The MFR-2 simplifies the design of the switchgear cabinet, facilitates the commissioning, ensures the operation of the systems is user friendly and increases the availability of the overall system.
The new SPM-D digital synchronizer incorporates control logic for one circuit breaker, display of a.c. data on front panel, a user keypad, a built-in synchroscope, and easy configuration via an RS-232 port.
Also available is built-in utility protection for over- and under-current, over- and under-frequency, phase shift; generator protection for over- and under-voltage, over- and under-frequency; and generator protection for reverse or reduce power and overload.
The new digital EPG controller works with solenoid-type electric actuators, such as the Woodward 512, 524, 1712 and 1724 EPG actuators, to provide precise speed control of diesel or gas engines.
The ESDR 4T unit offers three-phase current differential protection for generators, motors and transformers in unit connection.
For isolated power units, the new GCP-11 panel provides complete engine and generator control, as well as control logic for one power circuit breaker. The GCP-11 unit provides engine start-stop control, and also protects the engine and generator for speed, temperature, pressure, voltage, current, frequency, overload or other faults. The control includes a total of 12 digital inputs, 2 engine signal inputs, 1 magnetic pickup input, and 9 configurable relay outputs.
The GCP-20 is also designed for emergency and stand-by power applications, but controls the speed governor and voltage regulator to provide no-break transfer to and from the utility.
The most powerful of the new generator control panels - the GCP-31 and GCP-32 units - are similar in function to the GCP-21 and GCP-22 controls, but add load sharing and kVAR sharing capabilities for multiple-unit operation. They also incorporate a synchroscope on the front panel.
MFR-1 multi-function relays provide monitoring and protection for a wide range of power generation and distribution applications. Each of the five available models protects for the designated faults, monitors and displays the generator or utility a.c. signals, includes one ANSI 74 alarm relay and 3 output relays, and is easily configured via the RS-232 interface.
Based on microprocessor technology, Woodward's MFR-2 protective relay incorporates functions and features for genset control in isolated or parallel utility operation-applicable to generators and switchgear equipement that require independent protection architecture.
The new SPM-D digital synchronizer incorporates control logic for one circuit breaker, display of a.c. data on front panel, a user keypad, a built-in synchroscope, and easy configuration via an RS-232 port.
