Welcome to the official website of CNIACS Automation Technology Co., Ltd!
0
October 22, 2025 BY
IN Woodward

Woodward EGCP-3 DESCRIPTION

DESCRIPTION

EGCP-3 is available in standard configurations including:

DR—Distributed Resource:

• Single unit isolated

• Single unit parallel to mains

• Single unit ATS

LS—Load Share:

• Multiple unit isolated

• Multiple unit parallel to mains

MC—Master Controller:

• Mains tie breaker control

• Inter-bus tie breaker control

Features

• Complete generator system control package

• Automatic load demand sequencing of multiple units

• Three-phase synchronization

• Comprehensive system protection –engine, utility, and generator

• Revenue-grade power and energy metering

• Digital display of engine, generator, and system data

• Real kW and reactive kVAR load sharing and control

• Additional on board and distributed I/O available

• Easily adapts to exact application needs with GAP™ programming tools

• Advanced network communications

• DSLC™ compatible

• Built-in diagnosticsWoodward EGCP-3
October 22, 2025 BY
IN Woodward

Woodward EGCP-3 APPLICATIONS Generator System Control

APPLICATIONS

EGCP-3 is a powerful microprocessor based generator system control and

management package designed for the most demanding power generation applications.

EGCP-3 combines engine, generator, power system, switchgear, and utility monitoring,

protection, and control functions in a single, compact, and cost-effective package.

Perfect for medium- and large-sized generation systems, the EGCP-3 is designed 

for use in stand-alone, peaking, or utility paralleled systems.

Up to 16 EGCP-3 controls can be networked together to provide total system

control, including multiple utility and  inter-bus tie breakers.

DESCRIPTION

EGCP-3 is available in standard configurations including:

DR—Distributed Resource:

• Single unit isolated

• Single unit parallel to mains

• Single unit ATS

LS—Load Share:

• Multiple unit isolated

• Multiple unit parallel to mains

MC—Master Controller:

• Mains tie breaker control

• Inter-bus tie breaker control
October 22, 2025 BY
IN Woodward

Woodward EGCP‐3 LS and SPM‐D

Using the sequencing functionality of the EGCP‐3. the control is configured to

start an additional unit two seconds after the load on the master unit exceeds 75%.

When the load reduces to below 30%, the slave unit is removed from the system after 60 seconds.

The controls needs to be able to trade master/slave relationships,

so a switch is used to place one control in Auto and Run w/ Load (Master)

and the second unit in Auto (Slave). Both controls have the option to operate in either

mode—so if sequencing needs to be avoided, the operator can place both

controls in Auto and Run w/ Load, and both units will share the entire electrical load.

The closed transition to shore power was solved by sending a remote fault input to the EGCP‐3 when the

shore power breaker is closed onto the system. When coming into port, ship’s power is reduced before

synchronizing to shore power. This means that only one unit is online with low load. When shore power is

connected, the operator adjusts a switch from “Generators” to “Shore” power. Instigating this switch turns

on the SPM‐D and allows the unit to begin sending digital signals to the EGCP‐3 LS to synchronize the

ship’s power to shore power.

When the breaker is closed, the aux feedback is sent to a remote input on the EGCP‐3 that opens the

generator breaker and shuts the generator down. The system is then completely supplied by shore power.

When the ship switches back to Generators, the remote input is cleared and the unit coming online

synchronizes to the shore power, closes its breaker, and the shore power breaker is immediately opened.

The system is then on Generator power.
October 22, 2025 BY
IN Woodward

Woodward EGCP‐3 LS and SPM‐D Application

Application

The ship’s chief engineer required several modes of operation in order to

optimize the performance of the yacht’s electrical system.

During normal operation, the load on the ship can be supplied by one genset, but when seas are

rough and the ship’s stabilizers are running, there is a need for additional generation.

In this mode of operation, both gensets must run continuously.

Also, the ship needs to be connected to shore power when in port.

In order to eliminate a blackout on the ship during the power transfer,

and to reduce the amount of load generated to the shore power,

a scheme was developed to provide an automatic closed transition using a Woodward SPM‐D.

Using the sequencing functionality of the EGCP‐3. the control is configured to

start an additional unit two seconds after the load on the master unit exceeds 75%.

When the load reduces to below 30%, the slave unit is removed from the system after 60 seconds.

The controls needs to be able to trade master/slave relationships,

so a switch is used to place one control in Auto and Run w/ Load (Master)

and the second unit in Auto (Slave). Both controls have the option to operate in either

mode—so if sequencing needs to be avoided, the operator can place both

controls in Auto and Run w/ Load, and both units will share the entire electrical load.
October 22, 2025 BY
IN Woodward

Woodward Electrical System EGCP‐3 LS and SPM‐D

Electrical System

The Sea Jewel’s two Cat 3304 gensets are rated for 80 kW each. Each genset is

controlled by a Woodward EGCP‐3 LS and can connect to the ship electrical load via

its generator breaker. The load can also be supplied by shore power when in port.

To synchronize the boat to shore power, a Woodward SPM‐D delivers

synchronization signals to the two EGCP‐3 LS units and closes the breaker when

phase and frequency are matched.

Conclusions

The commissioning of the Sea Jewel was a success, and operation of an EGCP‐3 and SPM‐D illustrated the

adaptability of Woodward controls to any application. By applying the EGCP‐3 LS units to the control of

the Cat gensets and the SPM‐D for synchronizing the shore power, the Sea Jewel now has a reliable

system to begin their chartering business this summer. Woodward would like to thank Sea Jewel Ltd and

Governor Control Systems fortheir time and energy on this project and congratulates them on a great

control system.
October 22, 2025 BY
IN Woodward

Woodward EGCP‐3 LS and SPM‐D

Sea Jewel is a 160 ft (49 m) yacht that uses two Caterpillar 3304 gensets for electric

power. The ship’s original control system needed repair but had been discontinued;

additionally Lloyd’s registration was required to comply with new insurance

guidelines. So Sea Jewel Ltd contacted Governor Control Systems Inc. (GCS) to

purchase, install, and commission two Woodward EGCP‐3 LS units to control these

two Cat gensets. The EGCP‐3 LS combines engine, generator, power system,

switchgear, bus and generator monitoring, protection, and control functions in a

single, compact, and cost‐effective package. Woodward representatives were

present to help in the commissioning.

Electrical System

The Sea Jewel’s two Cat 3304 gensets are rated for 80 kW each. Each genset is

controlled by a Woodward EGCP‐3 LS and can connect to the ship electrical load via

its generator breaker. The load can also be supplied by shore power when in port.

To synchronize the boat to shore power, a Woodward SPM‐D delivers

synchronization signals to the two EGCP‐3 LS units and closes the breaker when

phase and frequency are matched.
October 22, 2025 BY
IN ABB

ABB REC 670 Current protection Bay control IED

Current protection

Instantaneous phase overcurrent protection (PIOC, 50)

The instantaneous three phase overcurrent function has a low transient overreach and short tripping

time to allow use as a high set short-circuit protection function, with the reach limited to less than

typical eighty percent of the power line at minimum source impedance.

Four step phase overcurrent protection (POCM, 51_67)

The four step phase overcurrent function has an inverse or definite time delay independent for each

step separately.

The single input overcurrent function has a low transient overreach and short tripping times to

allow use as a high set short circuit protection function, with the reach limited to less than typical

eighty percent of the power line at minimum source impedance. The function can be configured

to measure the residual current from the three phase current inputs or the current from a separate

current input.

Four step residual overcurrent protection (PEFM, 51N/67N)

The four step single input overcurrent function has an inverse or definite time delay independent for

each step separately.

All IEC and ANSI time delayed characteristics are available together with an optional user

defined characteristic.
October 22, 2025 BY
IN ABB

ABB REC 670 Differential protection Bay control IED

Functionality

Differential protection

High impedance differential protection(PDIF, 87)

The high impedance differential protection can be used when the involved CT cores have same turn

ratio and similar magnetizing characteristic. It utilizes an external summation of the phases and neu

tral current and a series resistor and a voltage dependent resistor externally to the relay.

The function can be set to be directional or non-directional independently for each of the steps.

Instantaneous residual overcurrent protection (PIOC, 50N)

The single input overcurrent function has a low transient overreach and short tripping times to

allow use as a high set short circuit protection function, with the reach limited to less than typical

eighty percent of the power line at minimum source impedance. The function can be configured

to measure the residual current from the three phase current inputs or the current from a separate

current input.

Four step residual overcurrent protection (PEFM, 51N/67N)

The four step single input overcurrent function has an inverse or definite time delay independent for

each step separately.

All IEC and ANSI time delayed characteristics are available together with an optional user

defined characteristic.
October 22, 2025 BY
IN ABB

ABB REC 670 protection functions Bay control IED

A number of protection functions are available for flexibility in use for different station types and

busbar arrangements. The auto-reclose for single-, two-, and/or three-phase reclose includes priority

circuits for multi-breaker arrangements. It co-oper ates with the synchrocheck function with quick or

delayed reclosing. Several breaker failure functions are included to provide a breaker failure

function independent from the protection IEDs,also for a complete one- and a half breaker diameter.

High set instantaneous phase and earth overcur rent, 4 step directional or un-directional delayed

phase and earth overcurrent, thermal overload and two step under and overvoltage functions are

examples of the available functions allowing user to fulfill any application requirement.

Disturbance recording and fault locator are avail able to allow independent post-fault analysis after

primary disturbances with a single failure in the protection system.

6 x 32 dual directional channels for intertrip and binary signals transfer is available in the commu

nication between selected IEDs inside the station or in a near-by station.

The advanced logic capability, where the user logic is prepared with a graphical tool, allows spe

cial applications such as automatic opening of disconnectors in multi-breaker arrangements, closing

of breaker rings, load transfer logics etc. The graphical configuration tool ensures simple and

fast testing and commissioning.
October 22, 2025 BY
IN ABB

ABB REC 670 Bay control IED Application

Application

The REC 670 IED is used for the control, protection and monitoring of different types of bays in

power networks. The IED is especially suitable for applications in distributed control systems with

high demands on reliability. The IED can be used up to the highest voltage levels. It is suitable for

the control of all apparatuses in any type of switchgear arrangements.

The control is performed from remote(SCADA/Station) through the communication bus

or locally from a graphical HMI on the front of the IED showing the single line diagram.

Different control configurations can be used, e.g. one control IED can be used per bay or one IED can be

common for several bays. Interlocking modules are available for all common types of switchgear

arrangements. The control is based on the select-execute principle to give highest possible

reliability. A synchrocheck function is available to interlock breaker closing.

The advanced logic capability, where the user logic is prepared with a graphical tool, allows spe

cial applications such as automatic opening of disconnectors in multi-breaker arrangements, closing

of breaker rings, load transfer logics etc. The graphical configuration tool ensures simple and

fast testing and commissioning.

Serial data communication is via optical connections to ensure immunity against disturbances.

The wide application flexibility makes this product an excellent choice for both new installations and

the refurbishment of existing installations.

Menu

Search for products

Back to Top
Product has been added to your cart