GE Multilin 565 User manual

565/575
FEEDER MANAGEMENT RELAY®
Instruction Manual
SoftwareRev:E2.73
ManualP/N:1601-0017-E6
Copyright 1996 GE Multilin
CANADA USA
215 Anderson Avenue, Markham, Ontario, L6E 1B3 9746 Whithorn Dr., Houston, Texas, 77095
Tel: [phone] Fax: [phone] Tel: [phone] Fax: [phone]

TABLE OF CONTENTS
i
SECTION 1: INTRODUCTION
Protection Requirements of Feeders ......................... 1-1
565 Relay Features.................................................... 1-1
Setpoint Programming ............................................... 1-1
Inputs ......................................................................... 1-1
Outputs ...................................................................... 1-1
Memory Features ....................................................... 1-1
Typical Applications.................................................... 1-1
Ordering Information .................................................. 1-1
SECTION 2: INSTALLATION
Unpacking the Unit..................................................... 2-1
Mounting the Relay .................................................... 2-1
Making Wiring Connections ....................................... 2-1
Power Supply Connections........................................ 2-1
Surge Ground Connection ......................................... 2-1
Current Transformers ................................................. 2-1
Voltage Transformers ................................................. 2-1
Breaker Status and Control Connections .................. 2-4
Aux 1 Contacts........................................................... 2-4
Aux 2 Contacts........................................................... 2-4
Aux 3 Contacts........................................................... 2-4
Aux 4 Contacts........................................................... 2-4
Programming Port ...................................................... 2-4
Communication Port .................................................. 2-4
MTM Port ................................................................... 2-4
Printer Port ................................................................. 2-4
Analog Output Terminals............................................ 2-5
Analog In Terminals ................................................... 2-5
External Switches 1 to 8 ............................................ 2-5
Access Terminals ....................................................... 2-5
Remote Trip/Close Terminals ..................................... 2-5
Removal of Cradle ..................................................... 2-5
Inserting Cradle.......................................................... 2-5
Metering Transducer Module ..................................... 2-5
Hi-Pot Testing............................................................. 2-6
SECTION 3: PROTECTION APPLICATION INFORMATION
Overcurrent Protection............................................... 3-1
Use of Standard Curves............................................. 3-1
Use of Custom Curve................................................. 3-1
SECTION 4: DISPLAY AND KEYBOARD
Display Modes ........................................................... 4-1
Actual Values Mode ................................................... 4-1
Setpoints Mode .......................................................... 4-1
Help Mode.................................................................. 4-2
SECTION 5: ACTUAL VALUES MODE
Default Message Selection ........................................ 5-1
Actual Values Message Abbreviations. ...................... 5-1
Summary of Actual Value Page Contents .................. 5-2
Actual Values. ............................................................ 5-3
SECTION 6: SETPOINTS MODE
Relay Selection .......................................................... 6-1
Setpoint Message Abbreviations ............................... 6-1
Summary of Setpoint Page Contents. ....................... 6-3
Factory Default Setpoints. ......................................... 6-4
Setpoints. ................................................................... 6-8
Installation of Security Feature: ............................... 6-10
Use of Access Code:................................................ 6-10
SECTION 7: FEATURE INFORMATION
Event Recording Information ..................................... 7-1
AEG MODICON MODBUS PROTOCOL ................... 7-6
Memory Map Information ......................................... 7-11
Metering Specification - 565 with MTM.................... 7-23
SECTION 8: RELAY TESTING
Primary Injection Testing ............................................ 8-1
Secondary Injection Testing ....................................... 8-1
Phase Current Input Function Check......................... 8-1
Phase Instantaneous Pickup and Trip Check ............ 8-1
Phase Overcurrent Curve Verification........................ 8-1
Ground Current Input Function Check ....................... 8-3
Ground Instantaneous Pickup and Trip Check .......... 8-3
Ground Curve Verification.......................................... 8-3
Voltage Input Function Check .................................... 8-4
Undervoltage Trip and Alarm Check .......................... 8-4
Overvoltage Trip and Alarm Check ............................ 8-4
Output Relay Functional Check ................................. 8-4
Analog Input Function Check..................................... 8-4
Analog Output Function Check .................................. 8-4
Power Loss Check ..................................................... 8-4
SECTION 9: TECHNICAL SPECIFICATIONS
Technical Specifications............................................. 9-1
APPENDIX A
Customer service .......................................................A-1
APPENDIX B
Troubleshooting guide. ..............................................B-1
APPENDIX C
Block Diagrams ..........................................................C-1
APPENDIX D
Curve: Normal Inverse ..............................................D-2
LIST OF FIGURES

INTRODUCTION
1-1
Protection Requirements of Feeders
Protection of three phase feeders is necessary to avoid
equipment damage and personnel injury during fault condi-
tions. The fact that continuous reliable power must be pro-
vided to the distribution network means that the feeder pro-
tection relay must protect the network and personnel and yet
not cause unnecessary loss of power or nuisance tripping.
The ideal Feeder Management Relay should at least monitor
phase current, ground current and voltage in the network,
provideindicationsif any of thesereach predetermined levels
and provide appropriate trip signals if fault conditions de-
velop.
The advent of current microprocessor technology has ena-
bled the development of feeder management relays which do
this task much better than conventional relays and provide
other desirable features. Measured values of phase current,
ground current and voltage can be displayed.
Entering setpoints to the microprocessor based Relay is
made easier by use of a keypad and a LCD display to guide
the user. A “help” menu is available at all times.
Relay Features
The Multilin Feeder Management Relay is designed to pro-
vide complete and accurate feeder protection under all oper-
ating conditions.The relay provides complete Time/Overcur-
rent phase and ground protection by monitoring feeder phase
currents and ground currents.These are sensed by current
transformers (CT’s).
Overcurrent phase and ground current trip setpoints are
programmed by a comprehensive selection of industry stand-
ard curve shapes including moderately inverse, normal in-
verse, very inverse, and extremely inverse. In addition to the
pre-selected curves there is also a programmable custom
curve. If none of the pre-selected curves are suitable for the
application, the user can enter his own data to form the
custom curve.
Setpoint Programming
The relay can have its setpoints programmed locally, from the
front panel. In this case the alphanumeric display guides the
user through the setup, step by step, giving clear English
language instructions.There is also a HELP key which can be
pressed at any time to get information and assistance about
the current programming step.
The status of the system is clearly displayed at all times by
LED indicators and more detailed information can be shown
on the display screen if requested through the keypad.
When an output relay is activated to cause a trip/alarm the
Relay will display the cause of the trip/alarm.
All setpoints are tamper-proof.This is achieved through the
use of a combination of a Access wire jumper at the back of
the relay and personalized codes. These codes allow even
the wire jumper to be overridden, for added security.
Inputs
The Relay has inputs which can be used for indication of
breaker status or external differential trips such as the indus-
try standard ’87T’.
One set of inputs is designated “Analog Select”, and can be
connected to four dry contacts of a programmable logic
controller (PLC). Selected outputs can be requested one by
one, through these inputs by the PLC. Information can be
requested on values such as individual phase currents and
the Relay will send the requested value through the analog
output terminals in either 0-1mA or 4-20mA format as re-
quired.
Outputs
Six electromechanical output relays are included in the 565/
575 Relay.These are named Trip, Close, Aux. 1, 2, 3, and 4.
These relays can be allocated various functions, by using the
flexibility of the software programming.
Actual value and Setpoint information is sent out through the
RS485 port on the rear of the relay.
** An RS232 printer driver
port is also available for printing out events from the event
recorder if an Option Card is installed. **
In addition, a front
panel RS232 programming port is provided.
Memory Features
In order to simplify fault analysis and thus improve system
reliability, several memory features have been built into the
Relay. The event recording feature provides a record of the
events leading to a trip so that the faulty feeder system
component can be located easily.
The memory feature provides a record of the cause of all
trips.This is extremely useful in determining preventive main-
tenance requirements and identifying problem areas.
Typical Applications
The Relay is ideally suited for primary protection of medium
and high voltage distribution systems.

INTRODUCTION
1-2
Ordering Information
To order the Feeder Protection Relays you must specify it as
shown in Figure 1.1.
Many features of the Relay are field programmable. Those
Figure 1.1 Order Codes
listed in Figure 1.1 are not, and must be specified when
ordering.
Additional features may be available for special orders. Con-
tact GE MULTILIN for further details.

INSTALLATION
2-1
Unpacking the Unit
The shipping container should contain your Relay and this
manual. Inspect the unit and inform GE MULTILIN of any
damage.If re-shipment is required the original container and
packing should be used.
Mounting the Relay
The Relay is designed to be panel mounted. It should be
located so that the keypad is accessible with the door
opening from the right. The unit should be mounted so that
the display is easily visible. It is recommended that the relay
be mounted as far away as possible from heavy current
sources and strong magnetic fields.
The 4 mounting studs of the Relay are equipped with (1) #10
internal star lockwasher, (1) 10-32 threaded hex spacer
0.25" long, (1) #10 split lockwasher, and (1) 10-32 hex nut.
Remove only the split lockwasher and the 10-32 hex nut
before installing the Relay in the panel. Then use this split
lockwasher and hex nut to secure the Relay in the panel.
The dimensions of the unit and the necessary cutout dimen-
sions are shown in Figure 2.1.
To reduce the required space behind the mounting panel an
optional depth reducer is available.This reduces the depth to
6.25". It increases the width of the front panel to 15.33". For
mounting dimensions see Fig. 2.2.
Making Wiring Connections
All wiring connections to the Relay are made at the back of
the unit as shown in Figure 2.10. All terminals are also
identified in Table 2-1 with their functions.
Figure 2.5 shows the connections for a typical installation.
The actual connections made to the Relay will vary according
to the application. All contacts in the figure are shown in the
state they will have with control power applied to the unit.The
contacts are shown in the “non-active” state.
The relay can be removed from the outside case for the
purpose of checking and/or calibration. The wiring is to the
outside and remains intact.
WARNING
Extreme caution must be exercised when the chassis is
withdrawn from an in service unit as this exposes live
terminals.
Power Supply Connections
Depending upon the ordered power supply, the Relay is
designed to operate within one of the following voltage
ranges:
1. 90-260 VAC and 95-280 VDC
2. 20-60 VDC
No internal or external adjustments are required to use any
of the above supply voltages.
Power supply connections are made at terminals 63 and 64.
The relay is grounded by connecting terminal 62 directly to
the dedicated ground entering the switchgear enclosure.
Surge Ground Connection
For safety and optimum noise immunity due to transients, a
low impedance connection must be made between the surge
ground terminal and the switchgear ground. This must be a
separate, dedicated wire tied directly to the switchgear cop-
per bus strip (flat, braided wire is ideal).
CAUTION
FAILURE TO MAKE PROPER GROUND CONNECTIONS
MAY CAUSE DAMAGE TO THE RELAY.
Current Transformers
The three current transformers supply the Relay with cur-
rents proportional to the current in each of the phases of the
feeder being protected. They are connected to terminals 49
to 54 as shown in Figure 2.5.Observe correct polarity when
connecting the current transformers to the unit.
The CT terminal with the dot marked on it must be connected
to the terminal marked “:5/:1”. Each CT should have the
same physical orientation, with polarity connected as shown
in Figure 2.5.The sides of the CT which are not marked with
a polarity dot are connected together and grounded.
Residual ground sensing is provided by connecting the com-
mon terminals of the three CTs together through the ground
sensing input terminal 56 as shown in the wiring diagram,
Figure 2.5. These connections allow the relay to check the
vector sum of all three phase currents. If this is not zero, a
ground fault condition is sensed by the unit.
For typical CT wiring of the Relay with the optional Metering
Transducer Module (MTM) see Figure 2.7A and Figure 2.7B.
Voltage Transformers
Separate voltage transformers are needed for voltage sens-
ing and terminals 35 to 38 are used for this.The transformers
can be connected in either Wye or Open Delta configuration
as shown in Figure 2.6.

INSTALLATION
2-2
Figure 2.1 Mounting Details

INSTALLATION
2-3
Figure 2.2 Mounting Arrangement with Relay Collar

INSTALLATION
2-4
Breaker Status and Control Connections
The Feeder breaker status indications are given to the Relay
from the auxiliary 52a/52b contacts on the breaker. The
connections are made to terminals 9 and 10 for the Breaker
open indication (52b) and at terminals 11 and 10, for breaker
closed (52a) as shown in Figure 2.5.The breaker status input
connections must be made.
Aux 1 Contacts
The contacts of the Aux 1 are 43 N.O., 59 common, 46 N.C.
This relay function is programmable.
Aux 2 Contacts
The contacts of Aux 2 are 44 N.O., 60 common, 47 N.C.This
relay function is programmable.
Aux 3 Contacts
The contacts of Aux 3 are 45 N.C., 61 common, 48 N.O.This
relay is hot coil failsafe and monitors control power loss, and
trip coil supervision. It is not programmable.
Aux 4 Contacts
The contacts of Aux 4 are 30 N.O., 31 common, 32 N.C.This
relay activates on a Breaker Discrepancy function if enabled.
** Available only with Option Card **.
Block Tap Changer ( 575 only )
The contacts of the Block Tap Changer are 16 N.O., 15
common, and 26 N.C.This relay operates to block operation
of an external transformer tap changer. It also acts as “Auto
Reclosure in Progress” indicator.
Programming Port
A programming port (RS232 type) is supplied on the front
panel of the relay. This port can be connected to a computer
which then can be used to store setpoints in and read
measured values from the relay.
This port has priority over the communication port on the
rear. If the relay senses the DTR line being pulled high, all
communications at the rear are suspended.
The connection to a computer is made via a standard
modem type cable and is shown in figure 2.3.
Communication Port
Up to 32 relays can be daisy-chained together and con-
nected to a computer or a programmable controller using the
RS485 type communication port in the rear. A shielded
twisted pair should be used and proper polarity has to be
observed. ie.positive to terminal 65, negative to terminal 66,
while the shield is connected to terminal 67.
After each 565/575 Relay is assigned a unique address, the
master device (computer) can read measured values or
store setpoints. The address is assigned via the keypad on
the front panel. See also Programming Port information
above.
MTM Port
The MTM port, terminals 67, 68, and 69, is required when
connecting the separate MTM Metering Transducer Module
to the 565/575 Relay.The MTM receives current and voltage
inputs and calculates KW, KVAR, PF and transmits the
information to the 565/575 Relay.The connections are made
by means of a shielded twisted pair of length no greater than
50 ft. MTM port polarity must be observed.ie. positive to 68,
negative to 69, and the shield to 67.
** Available only with
Option Card **.
Printer Port
The printer port can be used to connect a printer to record
event recording output.This is a 1200 baud serial output with
even parity and requires the printer to accept serial data.The
word length is eleven bits with the data frame constructed as
follows: there is a start bit
(Low) , eight data bits (LSB to
MSB),
an even parity bit, and a stop bit (High). The connec-
tion is made at the rear of the relay via a 9 pin D-type null
modem connector. The pinout is as follows:
Figure 2.3 Computer Interface Cable for RelayCom
Package

INSTALLATION
2-5
2 = transmit data to printer
3 = receive data from printer
4 = Clear To Send from printer
5 = signal ground.
Seeyourprinter manualforconnectionsattheprinter. ** Avail-
able only with the Option Card installed **
Analog Output Terminals
Terminals 17 and 18 provide a single output that can be
programmed as 4-20 mA or 0-1 mA to correspond from zero
to full scale.
Using the analog select terminals 19-22, and 71, outputs can
be selected by placing a binary code on inputs A-D.This code
can be PLC controlled for changing the output selection.This
allows monitoring and plotting measured values such as
phase current, using a single analog input channel of a
programmable controller.
If a single output parameter is desired, this is achieved through
setpoint programming without external connections to inputs A-D.
Analog In Terminals
The 565/575 Relay is designed to accept an input from
standard 4 to 20 mA source such as a MultilinTS3 Tempera-
ture Monitor. This input can be used to provide status or trip
signals related to the level of the input, a transformer winding
temperature, for example. The setup of the trip, alarm or
status indications are done during the software programming
in the Setpoints mode.
The input terminals are positive 24, and negative 23.
External Switches 1 to 8
The 565/575 Relay can accept switch inputs from eight
external switches, through terminals 1 to 8. The function of
switches 1 to 8 is user definable.They can be programmed to
perform functions such as preventing certain feeder breaker
trips or introducing a time delayed alarm.These features are
assigned to the switches in the Configuration page of Set-
points mode.
CAUTION
External Switch inputs should be connected to dry circuits
only to prevent damage to the relay.
No external voltage should be applied to these terminals as
the contacts are energized internally from the 565/575 and
opto-coupled to the sensing circuitry. Switches should be
isolated from each other for correct operation.The maximum
input impedance to these external switches is 2 kΩ.
AccessTerminals
Terminals 33 and 34 can be connected to a keyswitch.The
565/575 Relay setpoints cannot be changed unless this
keyswitch is closed (ie. 33 and 34 are connected together).
This prevents unauthorized personnel from tampering with
the setpoints once they are set up. This function can be
defeated using the Security feature. Refer to Setpoint Pro-
gramming.
RemoteTrip/Close Terminals
When terminals 39 and 40 are “open”, the 565/575 relay is
operating in Local Mode. If this is the case, terminals 26, 27,
and 28 will have no effect upon either the Close (terminals 42
and 58) or Trip (terminals 25, 57, and 41) output relays.
When terminals 39 and 40 are “closed”, the 565/575 relay is
operating in Remote Mode. Now if terminals 27 and 28 are
shorted, the Close output relay becomes energized and if
terminals 26 and 27 are shorted, the Trip output relay be-
comes energized. Note that each relay will be picked up for
as long as the appropriate switch input remains closed.
This operation is completely independent of software and is
strictly under hardware control.
Removal of Cradle
To remove the cradle from the case, open the door and
unscrew the locking screw fasteners.The cradle can now be
removed simply by pulling on the front handle. Caution
should be taken when the cradle is removed as this exposes
live terminals in the case.
Inserting Cradle
To insert the cradle, align the aluminum guides on the sides
of the cradle with those inside the case and slide the cradle
into place. Ease in with constant pressure. Once inserted,
the yellow guideline should be visible. The locking screw
fasteners can now be screwed in and tightened. NOTE: The
locking screw fasteners should be locked at all times while
the cradle is inserted to ensure that proper connection to the
rear terminals is maintained.
CAUTION
Do not press on the LCD display when removing or install-
ing the unit.

INSTALLATION
2-6
Metering Transducer Module
The Metering Transducer Module is an optional unit which
gives the 565/575 additional functionality. The mounting ar-
rangement is shown in Figure 2.9 and the typical wiring for
PT’s and CT’s is shown in Figure 2.7A and Figure 2.7B.
Additional analog outputs can be wired as shown in Figure
2.8A and Figure 2.8B.
Hi-Pot Testing
The Relay has been tested at the factory for 1 second at
1800 VAC in order to verify its dielectric strength. Hi-pot
testing to verify the wiring into the gearmust be done with the
inner relay cradle removed from the outer case. JMP1 must
be removed before Hi-pot testing.This jumper can be located
by viewing Figure 2.4.
Hi-pot testing should only be performed on the terminals
mentioned in the enclosed table of this addendum. With
these points in mind, here are the necessary steps for Hi-
potting a 565/575 Relay when wired into the gear.
Figure 2.4 Removal of Hi-Pot Screw
1. Remove the 565/575 Relay inner chassis from the outer
case. Failure to remove the relay from the outer case can
cause failure of the relay.
2. Remove jumper JMP1 from the outer case’s rear
motherboard. Please see Figure 2.4 for this jumper’s
location.
3. Hi-pot the following terminals with respect to surge ground
for 1 second at 1800 VAC:
#16
#29, #30, #31, #32
#42, #43, #44, #45, #46, #47, #48
#58, #59, #60, #61, #62, #63, #64
4. Ensure that jumper JMP1 is properly inserted after Hi-pot.
This should be on the two right most pins of the group of
three pins. If not, the unit will not be properly grounded.
5. Install the relay’s inner chassis into the outer case.

INSTALLATION
2-7
Table 2-1 - Terminal Identification
Terminal Function
1 Ext. Switch #1 "+"
2 Ext. Switch #2 "+"
3 Ext. Switch #3 "+"
4 Ext. Switch #4 "+"
5 Ext. Switch #5 "+"
6 Ext. Switch #6 "+"
7 Ext. Switch #7 "+"
8 Ext. Switch #8 "+"
9 Breaker Open (52b) "+"
10 Breaker Common "–"
11 Breaker Closed (52a) "+"
12 Reclosure Enable "+"
13 Reclosure Common "–"
14 Reclosure Disable "+"
15 Block TC Common
16 Block TC N.O.
17 Analog Out "-"
18 Analog Out "+"
19 Analog Select A
20 Analog Select B
21 Analog Select C
22 Analog Select D
23 Analog In "-"
24 Analog In "+"
25 Trip Relay N.C.
26 Remote Trip "+"
27 Remote Common "-"
28 Remote Close "+"
29 Block TC N.C.
575 only
30 ** Aux 4 Relay N.O.
31 ** Aux 4 Relay Common
32 ** Aux 4 Relay N.C.
33 ** Access Switch "+"
34 ** Access Switch "-"
35 Voltage Input V1
36 Voltage Input V2
37 Voltage Input V3
38 Voltage Input Vn
39 43 Remote "+"
40 43 Remote "-"
41 Trip Relay N.O.
42 Close Relay Contact 1
43 Aux 1 Relay N.O.
44 Aux 2 Relay N.O.
45 Aux 3 Relay N.C.
46 Aux 1 Relay N.C.
47 Aux 2 Relay N.C.
48 Aux 3 Relay N.O.
49 Phase 1 Common
50 Phase 1 Input :5/:1
51 Phase 2 Common
52 Phase 2 Input :5/:1
53 Phase 3 Common
54 Phase 3 Input :5/:1
55 Ground Current Common
56 Ground Current Input :5/:1
57 Trip Relay Common
58 Close Relay Contact 2
59 Aux 1 Relay Common
60 Aux 2 Relay Common
61 Aux 3 Relay Common
62 Control Voltage GND
63 Supply Voltage "+"
64 Supply Voltage "-"
65 RS485 Port "+"
66 RS485 Port "-"
67 MTM/RS485 Shield
68 ** MTM RS485 "+"
69 ** MTM RS485 "-"
70 IRIG-B
575 only
71 Analog Select Common
72 Ext. Switch Common
** 565 requires Option Card
Terminal Function
}
575 only

INSTALLATION
2-8
Figure 2.5 565 Relay Typical Wiring

INSTALLATION
2-9
Figure 2.6 Voltage Sensing Wire

INSTALLATION
2-10
Figure 2.7A 565 with MTM CT and Open Delta VT Typical Wiring

INSTALLATION
2-11
Figure 2.7B 565 with MTM CT and Wye VT Typical Wiring

INSTALLATION
2-12
Figure 2.8A Open Delta VT and CT MTM Typical Wiring

INSTALLATION
2-13
Figure 2.8B Wye VT and CT MTM Typical Wiring

INSTALLATION
2-14
Figure 2.9 MTM Mounting Dimensions

INSTALLATION
2-15
Figure 2.10 565 Rear Panel Layout