DECS-200MOUNTING PLATE SOLUTIONS

COMPACT DIGITAL PRE-PACKAGED AVR MOUNTING PLATE SOLUTIONS FOR SYNCHRONOUS MACHINES

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DECS-200 THE HEART OF YOUR SYSTEMWHEN RELIABILITY AND EASY SETTINGS ARE ESSENTIAL, YOU ARE LOOKING FOR DECS-200.

The DECS-200 is an excitation control system used to control the output voltage, vars or power factor of a synchronous generator by varying or controlling the amount of DC excitation applied to the generator’s exciter field. Suitable for virtually any size machine, the microprocessor-based DECS-200 is a total excitation control system in one enclosure. It contains all the functionality necessary to control, limit, and protect a generator from operating outside of the machine’s capability.

■ Microprocessor-based design ■ Up to 125Vdc output at 15Adc ■ 20 standard stability selections ■ PID Calculator ■ Paralleling compensation ■ Soft start build-up ■ Auto-tracking between operating modes ■ Minimum Excitation Limiter

■ Stator Current Limiter ■ Oscillography ■ Exciter Diode Monitoring (EDM) ■ Eight generator protection features ■ Front panel backlit LCD display ■ Side panel mounted RS-485 comm. port ■ True RMS sensing, single or three phase ■ 0.25% Voltage Regulation Accuracy ■ User customizable stability selection ■ U/F compensation or V/Hz Ratio Limiter ■ FCR Mode (Manual Mode) ■ Auto-tracking between 2 DECS-200 units ■ On and off-line Maximum Excitation Limiters ■ VAR and PF (Power Factor) Controllers ■ Sequence of Events Recording ■ Voltage Matching ■ Programmable output contacts ■ Front panel mounted RS-232 comm. port ■ Modbus protocol for RS-485 up to 1.2km ■ Setup from front panel HMI or by PC with free

BESTCOMSTM user-friendly setting software. ■ Meets C37.90.1-1989 for Surge Withstand and Fast

Transient ■ UL recognized, CSA certified, CE compliant, DNV

certified, GOST-R certified, Byelorussian certified ■ Two separate analog inputs for remote set point

control ■ Designed for applications ranging from 0 to 15 Amps ■ For applications up to 20 Amps, Basler DECS-200N

is available.

BASLER INTEGRATED SYSTEMSSAVE TIME AND GET THE MOST OUT OF YOUR INSTALLATIONWITH BASLER SOLUTIONS.

Ease, convenience, and performance are key for new installations and are essential when replacement of original aging excitation systems become necessary. DECS-200 solutions are of full-featured excitation systems equipped with all the functionality necessary to provide reliable operation of a synchronous machine. The DECS-200 AVR incorporates microprocessor technology and is the heart of Basler Electric pre-packaged excitation systems. Basler engineered quality solutions may be delivered on fully assembled mounting plates, ready for installation in your new or existing cubicle.

BASLER DECS-200MOUNTING PLATE SOLUTIONS

FULLY-EQUIPPEDSTANDARD SOLUTIONS

CUSTOM-DESIGNEDSOLUTIONS

24Vdc

POWER SUPPLY

SENSING CT

EITHER ON TERMINAL OR NEUTRAL SIDE

SENSING

VOLTAGE

TRANSFORMER

AC INPUT

POWER SUPPLY

VOLTAGE

MATCHING

INPUT

RS485

(MODBUS)

MANU

AL / A

UTOM

ATIC

MOD

ELO

WER

/ RA

ISE

SETP

OINT

STAR

T / S

TOP

EXCI

TATI

ONRE

SET

LOAD

PRE

POSI

TION

52G

(GEN

ERAT

OR C

IRCU

IT B

REAK

ER)

52L (

GRID

CIR

CUIT

BRE

AKER

)

DROO

P IN

HIBI

T (D

ECS)

ALAR

M RE

SET

(DEC

S)24

Vdc C

ONTR

OL V

OLTA

GE

52G

1A or 5A

BOOST CTs

(1or 2 CT)

85 to 264Vac

or90 to 350Vdc

POWER SUPPLYEXCITATION

CIRCUIT BREAKER

EXCITATION

CONTACTOR

DISCHARGE

RESISTOR

24Vdc

INTERNAL

POWER SUPPLY

FIELD FLASHING

CIRCUIT BREAKER

FIELD FLASHING

RESISTOR

FIELD FLASHING

CONTACTOR

CEX

CEX

UNDERVOLTAGE

DECS-200 (27)

OVERVOLTAGE

(OVR - 59)

BOOST

CONTACTOR

LOGIC

INTERFACE

AC/DC

DC

OUTPUT CONTACTS

OVERVOLTAGE (MOMENTARY)

PROGRAMMABLE

(DECS OUTPUT RELAY#3)

AVR FAIL “WATCHDOG ALARM”

UNDERVOLTAGE (MOMENTARY)

EXCITATION BREAKER TRIP

EXCITATION ON

EXCITATION BREAKER TRIP

27

ICRM-15

DECS-200

SINGLEDECS-200

DUAL DECS-200

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These types of solutions are also available with Basler DECS-200N.

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SINGLE DECS-200STANDARD MOUNTING PLATEYOUR FULLY-EQUIPPED SOLUTION.

SIN

GLE

LIN

E D

IAG

RA

M

Specific features: ■ Over Voltage Protection Relay (BE3-59T) with setting 110 to 150V

■ Universal Boost Circuit

■ Inrush Current Reduction Module (ICRM)

■ Field-Flashing Circuit

■ Current Sensing 1 or 5A

■ Wide range of control power supply

■ Shipping dimensions: 830 x 250 x 420mm ■ Net weight: 25kg | Shipping weight: 30kg

MECHANICAL DRAWING

24Vd

cPO

WER

SUP

PLY

SENS

ING

CTEI

THER

ON

TERM

INAL

OR

NEUT

RAL S

IDE

SENS

ING

VOLT

AGE

TRAN

SFOR

MER

AC IN

PUT

POW

ER S

UPPL

Y

VOLT

AGE

MATC

HING

INPU

TRS

485

(MOD

BUS)

MANUAL / AUTOMATIC MODE

LOWER / RAISE SETPOINT

START / STOP EXCITATION

RESET LOAD PREPOSITION52G (GENERATOR CIRCUIT BREAKER)

52L (GRID CIRCUIT BREAKER)

DROOP INHIBIT (DECS)

ALARM RESET (DECS)

24Vdc CONTROL VOLTAGE

GRID

52L

52G

1A or

5A

BOOS

T CT

s(1

or 2

CT)

85 to

264V

acor 90

to 35

0Vdc

POW

ER S

UPPL

Y

EXCI

TATI

ONCI

RCUI

T BR

EAKE

R

EXCI

TATI

ONCO

NTAC

TOR

DISC

HARG

ERE

SIST

OR

24Vd

cIN

TERN

ALPO

WER

SUP

PLY

FIEL

D FL

ASHI

NGCI

RCUI

T BR

EAKE

R

FIEL

D FL

ASHI

NGRE

SIST

OR

FIEL

D FL

ASHI

NGCO

NTAC

TOR

CEX

CEX

UNDE

RVOL

TAGE

DECS

-200

(27)

OVER

VOLT

AGE

(OVR

- 59

)

BOOS

TCO

NTAC

TOR

LOGI

C IN

TERF

ACE

AC/D

C DC

OUTP

UT C

ONTA

CTS

OVER

VOLT

AGE

(MOM

ENTA

RY)

PROG

RAMM

ABLE

(D

ECS

OUTP

UT R

ELAY

#3)

AVR

FAIL

“WAT

CHDO

G AL

ARM”

UNDE

RVOL

TAGE

(MOM

ENTA

RY)

EXCI

TATI

ON B

REAK

ER T

RIP

EXCI

TATI

ON O

N

EXCI

TATI

ON B

REAK

ER T

RIP

27

ICRM

-15

DEC

S-20

0

G

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page 7

SIN

GLE

LIN

E D

IAG

RA

M

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DUAL DECS-200STANDARD MOUNTING PLATEWHEN DOWNTIME IS NOT AN OPTION.

Specific features: ■ Dual Digital Excitation Control System 125V 15A with automatic

tracking between both controllers and provides transfer from master to back-up

■ Over Voltage protection Relay (BE3-59T) with setting 110 to 150V

■ Universal Boost Circuit | Field-Flashing Circuit

■ Inrush Current Reduction Module (ICRM)

■ Full Bumpless Transfer and Redundancy

■ Current Sensing 1 or 5A | 3 values of shunt available (5, 15 or 30A)

■ Over Excitation protection Relay (BE3-74SH)

■ Wide range of control power supply

■ Shipping dimensions: 830 x 820 x 450mm ■ Net weight: 39kg | Shipping weight: 60kg

MECHANICAL DRAWING

MANUAL / AUTOMATIC MODE

LOWER / RAISE SETPOINT

START / STOP EXCITATION

MASTER AVR

LOAD PREPOSITION52G (GENERATOR CIRCUIT BREAKER)

52L (GRID CIRCUIT BREAKER)

DROOP INHIBIT (DECS)

ALARM RESET (DECS)

BACK-UP AVR RESET

AC/D

C DC

24Vd

cPO

WER

SUPP

LY

85 to

264V

acor

90 to

350V

dcPO

WER

SUP

PLY

BOOS

TPO

WER

SUPP

LY(C

Ts)

BOOS

TCO

N-TA

CTOR

24Vd

cIN

TERN

ALPO

WER

SUP

PLY

DISC

HARG

ERE

SIST

OR

SHUN

T

BUILD

-UP

CEX

KB KB

CEX

KM

EXCI

TATI

ONCI

RCUI

T BR

EAKE

R

EXCI

TATI

ONCO

NTAC

TOR

AC IN

PUT

POW

ER S

UPPL

Y

SENS

ING

TRAN

SFOR

MER

3x10

0Vto

3x12

0V

1A or

5A

SENS

ING

CTEI

THER

ON

TERM

INAL

OR

NEUT

RAL S

IDE

VOLT

AGE

MATC

HING

INPU

TRS

485

(MOD

BUS)

OVER

VOLT

AGE

RELA

Y (5

9)

OVER

EXCI

TATI

ONRE

LAY

(1st

step -

76)

OVER

EXCI

TATI

ONRE

LAY

(2nd

step

- 76

)

OUTP

UT C

ONTA

CTS

UNDE

RVOL

TAGE

(MOM

ENTA

RY)

PROG

RAMM

ABLE

(D

ECS

OUTP

UT R

ELAY

#3)

AVR

FAIL

(BAC

K-UP

) “W

ATCH

DOG

ALAR

M”

EXCI

TATI

ON B

REAK

ER T

RIP

EXCI

TATI

ON O

N

EXCI

TATI

ON B

REAK

ER T

RIP

24Vd

c BRE

AKER

TRI

P

OVER

EXCI

TATI

ON (1

st LE

VEL)

OVER

EXCI

TATI

ON (2

nd LE

VEL)

PROG

RAMM

ABLE

(D

ECS

OUTP

UT R

ELAY

#2)

MAST

ER AV

R SE

LECT

ED

BACK

-UP

AVR

SELE

CTED

LOGI

C IN

TERF

ACE

DEC

S-20

0M

AST

ER

DEC

S-20

0B

AC

K-U

P

52L

52G

GRID

ICRM

-15

G

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RELIABILITY, FLEXIBILITY, EASE OF OPERATIONBasler DECS-200 standard and customized solutions are designed to help you get the most out of your installation. We know that downtime is not an option and that is the reason why we decided to include an Inrush Current Reduction Module on our standard solutions to avoid any problems during power-up.Basler goes even further in ensuring that our solutions will fulfill your expectations. Our dedicated field service team can help you through commissioning, provide you with on-site training, and answer all your technical questions rapidly.

Inrush Current Reduction Module: ICRM

Applications where a PWM-type voltage regulator is powered by a PMG or a Station Bus, it is highly recommended to install an Inrush Current Reduction Module to minimize the amount of inrush current flow.

The ICRM (included on all MP-DECS-200 standard mounting plates) prevents damage to a protected voltage regulator during power-up by limiting inrush current to a safe level. Without inrush protection, the inrush current is limited only by the level of the power

Commissioning and technical support

Our team of field service technicians and engineers is available worldwide to help you through commissioning.

At Basler Electric, we understand what an emergency means to you. For that reason we structured our response capability to ensure that you get the answers you need within 48 hours.

■ Worldwide commissioning

■ Worldwide technical support

■ 24/7 hotline

■ On-site training

■ Hands-on training in our factory

source impedance. The lower is the impedance; the greater is the risk of damaging the regulator from excessive inrush current.

Devices with a pulse-width modulated (PWM) power stage are especially vulnerable to high inrush current due to a large amount of capacitance inherent to the design. Shunt-powered voltage regulators as well as those that use SCR-type power stages do not usually require the protection of an ICRM.

BESTCOMSTM software is provided free of charge with our products.Among its features are:

■ Easy file creation

■ Reduced learning curve

■ Additional logic elements

■ Settings optimization via PC

■ PID stability program

Download BESTCOMSTM at www.basler.com and explore its capabilities.

BESTCOMS Configuration window

BESTCOMSTM,USER-FRIENDLY INTERFACETRY OUR FREE INTUITIVE SOFTWARE AND WE ARE SURE YOU WILL ADOPT IT.

With Basler-designed graphical user interface BESTCOMSTM forget about complicated settings and updates. By providing you with an intuitive point-and-click software, we make sure you stay in control of your installation. The capabilities of this software make the configuration, and monitoring of your DECS-200 fast and efficient.

BESTCOMS Metering window

Create a settings scheme

Save it as a file

Upload it to the product at your convenience

1

2

3

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RETROFIT SOLUTIONS FOR MINIMUM DOWNTIMEIMPROVE YOUR DECS-125-15 OPERATION PERFORMANCE WITH A DECS-200 RETROFIT SOLUTION.

DECS-125-15 has proven its efficiency and reliability through thousands of applications operating around the world. Basler Electric has designed a new mounting plate using the latest technology to replace your obsolete DECS-125-15. Our target: save you time and money. The installation of your retrofit mounting plate does not require electrical or mechanical modifications since it has the same connections (including droop and cross-current compensation on the same input) and footprint as the previous one. Plug it and play: you are done.

Increase generator efficiency and availability.Improved control modes and additional protective and limiting functions of the DECS-200 retrofit mounting plate increase generator efficiency and availability.

Control modes.

If a loss of sensing condition is detected, the DECS-200 mounting plate will act as a back-up source of regulation until repairs can be made. The DECS-125-15 provided this type of field current regulation only during test and commissioning. Moreover, the DECS-200 solution allows for minimum voltage variation on the generator output when switching between modes thanks to its ability to track the active mode by all non-active ones.

Protective and limiting functions.

Added protective features provide a reliable protection back-up source to your existing relaying scheme and contribute to the preservation of your generator’s integrity.

Extra limiting functions enable easier field commissioning by eliminating the need to modify generator limiters’ settings and protects the generator stator from overheating.

Enhance interaction between your system and your control room.Front side panel RS232 and side-mounted RS485 ports allow for enhanced communication capabilities on a DECS-200 retrofit mounting plate.

Benefit from fast and easy user setup via your PC with Basler’s software, BESTCOMSTM. As a part of it, Basler provides a PID selection software that will help you obtain maximum generator response and performance while achieving utmost stability through the input of basic generator parameters and the reception of pre-calculated PID values.

DECS-125-15 DECS-200Generator over-voltage Generator over-voltageLoss of sensing Loss of sensingInternal power stage over temperature Watchdog

Generator under-voltageField over-voltage and currentExciter diode monitoringLoss of field

Standard protective features.

FOR MORE OPTIONSGET A CUSTOM DESIGNCUSTOMIZED DECS-200 MOUNTING PLATES.

Basler Electric takes pride in providing their partners with solutions completely adapted to their needs. Should you have some specific requirements regarding the design of your mounting-plate, our engineers will take care of it. Basler Electric manufactures solutions for virtually all types of applications and environmental conditions. Ask for a customized solution and get Basler service as a bonus.

EXAMPLES OF PROPOSED OPTIONSTransducers PLC for added features and integrationAdaptation of sensing voltage Additional protective relaysFull dual sensing circuit Local / Remote control facilitiesFull dual power input Synchronization equipmentFull redundant AVR transfer Communication through ModbusFull dual control power Boost circuit supplied from batterySpecific connecting plugs Boost circuit supplied from CTs (with output limit adjustment control)

Specific terminals (spring or screw) Black startSpecific wiring (halogen free, flame retardant, cross section) Customized shape

Specific logic (more logic or information) Customized sizeFull control for alarms and faults Power system stabilization equipmentNegative forcing with DECS-200N Contact Basler for more options

Not only will the new system allow you to monitor all generator parameters, but it will also provide remote control of the excitation system set points.

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MP-382 designed for marine applications. Shape and size customization.

BASLER DESIGNS CUSTOMIZED SOLUTIONS FOR:

OEM’sTurnkey contractorsSystem integratorsMarine specialistsPower plantsIndustryOil and gas applications

LOCAL PRESENCE GLOBAL REACH

Suzhou, P.R. ChinaTel.: +86 512 8227 2888chinainfo@basler.com

Wasselonne, FranceTel.: +33 3 88 87 10 10franceinfo@basler.com

Highland, Illinois USAWorldwide Headquarters

Tel.: +1 618 654 2341info@basler.com

SingaporeTel.: +65 68 44 6445

singaporeinfo@basler.com

FOR MORE INFORMATION, CONTACT US OR VISIT OUR WEBSITE www.basler.com

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