GE Multilin DGPR User manual

GE
Grid Solutions
Instruction Manual
GE publication code: 1601-0410-A2
Multilin DGPR
1601-0410-A2
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Copyright © 2020 GE Multilin. All rights reserved.
Multilin DGPR Instruction Manual using schematic GPRP000002.
DGPR, EnerVista, Multilin, and GE Multilin are trademarks or registered trademarks of GE
Multilin or General Electric Company Corporation.
The contents of this manual are the property of GE Multilin. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-0410-A2 (September 2020)

MULTILIN DGPR – INSTRUCTION MANUAL iii
DGPR
Table of contents
1 INTRODUCTION Safety symbols and definitions ...................................................................................1
For further assistance ...................................................................................................1
2PRODUCT
DESCRIPTION
Product description........................................................................................................3
Order codes .....................................................................................................................5
Specifications..................................................................................................................5
3 INSTALLATION Unpack and inspect .......................................................................................................7
Dimensions......................................................................................................................9
Wiring .............................................................................................................................11
Difference between CT connections of DGP and DGPR ...........................................................15
CT inputs system side................................................................................................................................16
CT inputs neutral side................................................................................................................................17
Voltage inputs ............................................................................................................................................... 17
Digital inputs and outputs....................................................................................................................... 18
Inputs ................................................................................................................................................................18
Outputs............................................................................................................................................................. 19
Test switches ................................................................................................................................................. 20
Install hardware ...........................................................................................................21
Disconnect DGP............................................................................................................................................ 21
Mount the unit............................................................................................................................................... 21
Connect wires ............................................................................................................................................... 23
Activate G60 relay........................................................................................................26
Install software.............................................................................................................26
Connect G60 relay........................................................................................................26
Connect using RS232 port.......................................................................................................................26
Connect using Ethernet port..................................................................................................................28
Connect using RS485 port.......................................................................................................................28
IRIG-B..............................................................................................................................28
4 MAINTENANCE Repairs............................................................................................................................29
A MISCELLANEOUS Warranty ...................................................................................................................... 31

iv MULTILIN DGPR – INSTRUCTION MANUAL
TABLE OF CONTENTS
Revision history ........................................................................................................... 31
INDEX

MULTILIN DGPR – INSTRUCTION MANUAL 1
DGPR
Chapter 1: Introduction
Introduction
This chapter outlines safety and technical support information.
Safety symbols and definitions
Before attempting to install or use the device, review all safety indicators in this document
to help prevent injury, equipment damage, or downtime.
The following safety and equipment symbols are used in this document.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE
Indicates practices not related to personal injury.
For further assistance
For product support, contact the information and call center as follows:
GE Grid Solutions
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Worldwide telephone: [phone]
Europe/Middle East/Africa telephone: [phone]
North America toll-free: 1 800 547 8629
Fax: [phone]
Worldwide e-mail: [email protected]

2MULTILIN DGPR – INSTRUCTION MANUAL
FOR FURTHER ASSISTANCE CHAPTER 1: INTRODUCTION
Europe e-mail: [email protected]
Website: http://www.gegridsolutions.com/multilin

MULTILIN DGPR – INSTRUCTION MANUAL 3
DGPR
Chapter 2: Product description
Product description
This chapter outlines the product, order codes, and specifications.
Product description
The Multilin DGPR is a retrofit solution for the Digital Generator Protection (DGP) Relay. The
DGPR is a one-to-one replacement of a DGP relay and includes a G60 Generator Protection
System, which is part of the GE Universal Relay (UR) series of products.
The G60 is a microprocessor-based relay that measures generator conditions directly via
CT and VT inputs and via other sources of information, such as analog, communication,
and contact inputs. The G60 protects, controls, and monitors the operation of generators
driven by steam, gas, or hydraulic turbine.
One of the benefits of the DGPR is ease of wiring. Simply disconnect the wires from the
back of the DGP and connect them to the back of the DGPR.
Figure 1: DGP (left) replaced by DGPR (right)
The DGPR solution includes
• G60 relay with redundant power supply
• Five test switches for CT, VT, Trip, and DC circuit isolation on the front of the unit
• Eight 14-pin terminal blocks at the back of the unit to replicate DGP terminals
The DGPR is pre-wired for all connections between the G60, test switches, and terminal
blocks.

4MULTILIN DGPR – INSTRUCTION MANUAL
PRODUCT DESCRIPTION CHAPTER 2: PRODUCT DESCRIPTION
Figure 2: Front of DGPR
Figure 3: Back of DGPR
The following items are included in the DGPR package:
• DGPR unit
• DGPR instruction manual
• DGPR schematic drawing (GPRP000002)
• DGP settings as installed, converted and installed on G60 (optional item)
In addition to the DGP, the following devices and functionalities can be integrated in the
DGPR unit as optional features:
• Backup 21/78 (LPS-O)
• 50RE
• 50/62 BF
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CHAPTER 2: PRODUCT DESCRIPTION ORDER CODES
MULTILIN DGPR – INSTRUCTION MANUAL 5
Order codes
This section lists the order codes for the Multilin DGPR.
The G60 order code provided in the package is
G60-UA4-HKH-F8M-H6P-M8M-P6M-U6C-WRH
For more information, see the Order Codes section in the G60 instruction manual.
Order codes are subject to change without notice. See the ordering page at
https://store.gegridsolutions.com/ for the latest options.
Table 1 outlines order codes. As an example, with
DGPR-S-D1-RE0-BF0-GS1-DS0-RES0-BFS0-DWG0-GPM0-64S0, the D1 option means that a
Line Protection System (LPS-O) cover plate is included, while the GS1 options means that
DGP settings are to be converted to the G60 settings. That is, GE converts DGP settings and
uploads them to the G60. The LPS-O cover plate is mounted in the replacement of the LPS-
O unit when it is removed from the panel.
Table 1: DGPR order codes
Specifications
Specifications are subject to change without notice.
G60 CONTROL POWER
high range 125 to 250 V AC/DC 300 V = Max 10 mA
low range 24 to 48 V DC 300 V = Max 10 mA
CT INPUTS-SECONDARY RATING
_____/5A
_____/1A
DGPR – * – ** –** –** –** –*** –**** –**** –**** –**** –****
DGPR S Standard with G60
C Custom with G60 order code specified
21/78 (LPS-O) Integration D0 None
D1 3 RU cover plate for LPS-O
50RE Integration RE0 None
RE1 Cover plate for 50RE relay
50/62BF Integration BF0 None
BF1 Cover plate for 50/62 BF relay
DGP to G60 Setting
conversion
GS0 None
GS1 DGPR settings required, converted
from original DGP settings
21/78 to G60 Setting
conversion
DS0 None
DS1 21/78 as installed settings to be
integrated with G60 settings
50RE to G60 Setting
conversion
RES0 None
RES1 50RE as installed settings to be
integrated with G60 settings
50/62BF to G60 Setting
conversion
BFS0 None
BFS1 50/62 BF as installed settings to be
integrated with G60 settings
GPP Drawing update DWG0 None
DWG1 Generator protection panel (GPP) and
layout drawings update for DGPR
replacement
GPM-S Option GPM0 None
GPM1 GPM-S (GPMSG + GPMSB +
204-SD-43737 CT) to be included as
ship loose items
64S Settings 64S0 None
64S1 64S settings to be integrated with G60
settings

6MULTILIN DGPR – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION
CT MODULES WITH SENSITIVE GROUND
APPROVALS
Compliance Applicable council directive According to
CE Low voltage directive EN 60255-5
EN 60255-27
EMC directive IEC 60255-26
IEC/TS 61000-6-5
C-UL-US --- UL 508
C22.2 No. 14-13

MULTILIN DGPR – INSTRUCTION MANUAL 7
DGPR
Chapter 3: Installation
Instal lati on
This chapter outlines installation of hardware and software.
Unpack and inspect
Two people are required to unpack, lift, and place the unit.
1. Before removing the DGPR unit from the shipping carton, screw the installation tools
provided into threaded holes E and F on the front of the unit, as shown.
Figure 4: Screw installation tools into holes E and F
2. Lift and place the unit on a bench in a standing position. Do not lay the unit on the
back terminal blocks.
NOTICE
Laying the unit on the back terminal blocks can break the insulators.
3. Leave the installation tools inserted in the holes. They are required to mount the unit in
the rack.
AB
CD
EF
GH

8MULTILIN DGPR – INSTRUCTION MANUAL
UNPACK AND INSPECT CHAPTER 3: INSTALLATION
4. Check that the following items have been delivered:
– DGPR unit
–Lexancover
– Multilin DGPR Instruction Manual
– Schematic drawings
– Mounting instructions with installation tools and screws
– Certificate of Calibration
–TestReport
– EC Declaration of Conformity
5. Inspect the unit for physical damage.
6. Check the G60 and DGPR nameplates on the back of the unit, as shown in the figure,
to verify that the correct models have been delivered.
Figure 5: G60 and DGPR nameplates
7. For any issues, contact GE Grid Solutions as outlined in the For further assistance
section on page 1.
8. Obtain the G60 instruction manual from
https://www.gegridsolutions.com/multilin/manuals/index.htm
The warranty is included at the end of this instruction manual and on the GE Grid Solutions
website.
Any updates to the DGPR instruction manual are at
https://www.gegridsolutions.com/app/viewfiles.aspx?prod=pkgsol&type=3
Model and
serial numbers
688465A1.cdr

CHAPTER 3: INSTALLATION DIMENSIONS
MULTILIN DGPR – INSTRUCTION MANUAL 9
Dimensions
The DGPR dimensions are 14" (height) × 19" (width) × 14" (depth). The following figures show
the front, side, rear, and dimensions of the DGPR and G60.
Figure 6: Front view and dimensions
Figure 7: Right side view and dimensions
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10 MULTILIN DGPR – INSTRUCTION MANUAL
DIMENSIONS CHAPTER 3: INSTALLATION
Figure 8: Rear view
Figure 9: G60 rear view
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CHAPTER 3: INSTALLATION WIRING
MULTILIN DGPR – INSTRUCTION MANUAL 11
Wiring
Figure 10 is the DGPR G60 wiring diagram.
DGPR design (drawing GPRP000002) is the same as DGP, which means that field wires are
to be disconnected from the DGP and then connected to the same terminal blocks at the
back of DGPR, except for the power supply alarm connections. See DGPR drawing
GPRP000002 for details.
Figures 11 and 12 show DGPR AC and DC schematics.

12 MULTILIN DGPR – INSTRUCTION MANUAL
WIRING CHAPTER 3: INSTALLATION
Figure 10: DGPR G60 wiring diagram (drawing GPRP000002)
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CHAPTER 3: INSTALLATION WIRING
MULTILIN DGPR – INSTRUCTION MANUAL 13
Figure 11: DGPR AC schematic (drawing GPRP000002)
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14 MULTILIN DGPR – INSTRUCTION MANUAL
WIRING CHAPTER 3: INSTALLATION
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CHAPTER 3: INSTALLATION WIRING
MULTILIN DGPR – INSTRUCTION MANUAL 15
Difference between CT connections of DGP and DGPR
Although the DGPR is a retrofit solution for the DGP and the attempt was made to maintain
as much similarity as possible, there are some differences. Figure 13 shows the difference
in the CT connections.
Figure 13: Typical CT connections
DGPR and DGP use residual connections. DGP uses a hard-wire approach to sum all of the
current in INS or INR, while the 51N element in the DGPR is connected in the common
neutral connection of the current transformer, which is the most common connection
arrangement. On four-wire circuits, the fourth current transformer is connected in the
neutral circuit, shown with a dotted line in the Figure 14.
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16 MULTILIN DGPR – INSTRUCTION MANUAL
WIRING CHAPTER 3: INSTALLATION
Figure 14: DGP 50/51N element
The protection response to the residual current is
In = 3I_0 = Ia + Ib + Ic Eq. 1
For those models that uses Core Balance (Zero Sequence) CT only in the DGP relay, where
the conductor cables pass through the center hole of the core balance CT (Figure 15), the
GE application team can verify customer requirements and modify the default
configuration of the DGPR. This type of connection is considered a custom order.
Figure 15: Custom configuration
CT inputs system side
Figure 16 shows DGPR CT connections for the system side. BH1, BH3, and BH5 are for
current inputs, while BH2, BH4, and BH6 are for common return. BH7 and BH8 are used for
INS in the DGP, but they are not used in the DGPR.
Figure 16: DGPR CT connections system side (drawing GPRP000002)
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