Cooper Power Systems Kyle Type ME Series Technical specifications

Figure 1.
Kyle®Type ME electronic recloser control
These instructions do not claim to cover all details or variations in the equipment, procedure, or process described, nor to provide direction for
meeting every possible contingency during installation, operation, or maintenance. When additional information is desired to satisfy a problem not
covered sufficiently for the user’s purpose, please contact your Cooper Power Systems sales engineer.
April 2002 ●Supersedes 12/88
Reclosers
Type ME Electronic Recloser Control,
Form 3 and 3A
Maintenance Instructions - Basic
1
CONTENTS
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Periodic Field Inspection and Maintenance . . . . . . . 6
Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Circuit Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Plug-In Circuit Boards Function . . . . . . . . . . . . . . . .10
Battery Charging Board . . . . . . . . . . . . . . . . . . . .10
Phase Trip No. 1 Board . . . . . . . . . . . . . . . . . . . .11
Phase Trip No. 2 Board . . . . . . . . . . . . . . . . . . . .11
Ground Trip No. 1 and No. 2 Boards . . . . . . . . . .11
Output Board . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Diode Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Recloser-Reset Board . . . . . . . . . . . . . . . . . . . . .12
Closing Coil Control Fuse . . . . . . . . . . . . . . . . . . . . .12
Interchangeability of Boards Between Form 2,
Form 3 and Form 3A Electronic Controls . . . . . . . . .12
Troubleshooting andTesting . . . . . . . . . . . . . . . . . . .13
Detailed Circuit Checks . . . . . . . . . . . . . . . . . . . . . . .14
Input Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Internal dc Load Current Signal . . . . . . . . . . . . . .18
Internal Minimum Trip Signal .....................................19
Time-Current Characteristic Curves (TCC) ................20
Control-Recloser operation ........................................22
Major Control Damage ...............................................29
Battery Charging ........................................................31
Mechanical and Electrical Hardware ..........................35
Battery Maintenance ...........................................................35
Battery Specifications ......................................................35
Maintaining Battery Charge .............................................35
Field Testing a Battery .....................................................35
Shop Testing a Battery .....................................................36
Appendix I ...........................................................................37
Test Sheet ........................................................................37
Appendix II ..........................................................................38
List of Electronic Recloser Maintenance Manuals ...........38
Appendix III .........................................................................38
List of Electronic Control Accessory Manuals ..................38
Appendix IV .........................................................................38
Service Parts List .............................................................38
Appendix V ..........................................................................41
Form 2 Connection Diagram ............................................42
Form 3 Connection Diagram ............................................44
Form 3A Connection Diagram .........................................48
88936KMA
S280-75-2
Service Information

2
TYPE ME ELECTRONIC RECLOSER CONTROL
The instructions in this manual are not intended as a
substitute for proper training or adequate experience in
the safe operation of the equipment described. Only
competent technicians who are familiar with this equip-
ment should install, operate, and service it.
A competent technician has these qualifications:
• Is thoroughly familiar with these instructions.
• Is trained in industry-accepted high- and low-voltage
safe operating practices and procedures.
• Is trained and authorized to energize, de-energize,
clear, and ground power distribution equipment.
• Is trained in the care and use of protective equipment
such as flash clothing, safety glasses, face shield,
hard hat, rubber gloves, hotstick, etc.
Following is important safety information. For safe instal-
lation and operation of this equipment, be sure to read
and understand all cautions and warnings.
Safety Instructions
Following are general caution and warning statements
that apply to this equipment. Additional statements, relat-
ed to specific tasks and procedures, are located through-
out the manual.
SAFETY INFORMATION
SAFETY FOR LIFE
Cooper Power Systems products meet or exceed all applicable industry standards relating to product safety. We actively
promote safe practices in the use and maintenance of our products through our service literature, instructional training
programs, and the continuous efforts of all Cooper Power Systems employees involved in product design, manufacture,
marketing, and service.
We strongly urge that you always follow all locally approved safety procedures and safety instructions when working
around high voltage lines and equipment and support our “Safety For Life” mission.
!
SAFETY
FOR LIFE
!
SAFETY
FOR LIFE
This manual may contain four types of hazard
statements:
DANGER: Indicates an imminently haz-
ardous situation which, if not avoided, will
result in death or serious injury.
WARNING: Indicates a potentially haz-
ardous situation which, if not avoided, could
result in death or serious injury.
CAUTION: Indicates a potentially hazardous
situation which, if not avoided, may result in
minor or moderate injury.
CAUTION: Indicates a potentially hazardous situ-
ation which, if not avoided, may result in equip-
ment damage only.
!
!
Hazard Statement Definitions
!
WARNING: This equipment is not intended to
protect human life. Follow all locally approved
procedures and safety practices when installing or oper-
ating this equipment. Failure to comply can result in
death, severe personal injury and equipment damage.
G102.1
!
DANGER: Hazardous voltage. Contact with
hazardous voltage will cause death or severe
personal injury. Follow all locally approved safety pro-
cedures when working around high and low voltage
lines and equipment. G103.3
!
WARNING: Before installing, operating, main-
taining, or testing this equipment, carefully read
and understand the contents of this manual. Improper
operation, handling or maintenance can result in death,
severe personal injury, and equipment damage. G101.0
!
WARNING: Power distribution equipment must
be selected for the intended application. It must
be installed and serviced by competent personnel who
have been trained and understand proper safety proce-
dures. These instructions are written for such personnel
and are not a substitute for adequate training and expe-
rience in safety procedures. Failure to properly select,
install, or maintain this equipment can result in death,
severe personal injury, and equipment damage. G122.2
!

S280-75-2
3
Figure 2.
Electronic control panel. 88937KMA
INTRODUCTION
Service Information S28O-75-2 covers basic maintenance
instructions for the Type ME electronic control. The manual
includes a general description of the control, its operating
principles and instructions for periodic inspection and testing.
Service parts lists along with ordering information are includ-
ed in Appendix IV.
An introduction to the Form 3A, Type ME, electronic control
is available on video cassette (KSPV3); in this program the
function of all standard operating and programming features
is explained.
The factory service department offers maintenance training
courses for Type ME controls. These classes, taught by ex-
perienced service technicians, are held at the factory’s in-house
training facility. For additional information, contact your sales engi-
neer.
DESCRIPTION
The Kyle Type ME electronic recloser control (Figure 1 ) is com-
prised of a number of programmable, solid-state electronic circuits
that perform the command functions involved in automatic recloser
operation. It is used to operate all Kyle electronically controlled
reclosers.
A swing-out front panel contains the programming and operating
elements of the control (Figure 2). The upper, black portion

4
Figure 3.
Tie board on back of front panel mounts the individual printed circuit boards.
Type ME Electronic Recloser Control
88938KMA
of the front panel contains the plug-in components and setting
knobs for programming automatic recloser operation. The
switches and indicators used for manual operation and service
are grouped on the bottom, light portion of the panel.
The front panel is backed by a printed-circuit tie board which
supports and interfaces the plug-in circuit boards with other
related circuit components (Figure 3). Program-altering,
remote control, indicating, and general convenience acces-
sories can be added to further expand and enhance the appli-
cation capabilities of the control.
Line current flowing through the recloser is sensed by three
internally mounted bushing-current transformers, one on each
phase. When the phase current, or the zero-sequence (ground)
current, exceeds its programmed minimum-trip value, the
electronic control initiates the programmed sequence of
recloser tripping and reclosing operations. If the fault is tempo-
rary, the control ceases to command recloser operations after
successful reclose, and the control resets to the start of its
operating sequence after a preset time delay. If the fault is
permanent, the control performs its complete programmed
sequence of recloser commands and locks out with the reclos-
er open. Once locked out, the control must be manually reset
to the start of its operating sequence which simultaneously
closes the recloser.
Factory-calibrated timing plugs establish the time-current
characteristics for both phase and ground tripping. Two sets of
individual timing curves provide dual timing for both phase and
ground.

S280-75-2
5
Figure 4.
Typical operating sequence of an electronically controlled recloser under permanent fault conditions.
Figure 5.
Typical operating sequence of an electronically controlled recloser under temporary fault conditions.
OPERATION
Since the understanding of the terminology and the operat-
ing sequences of an electronically controlled recloser is
important to the rest of this maintenance manual, examples
of typical operating sequences of an electronically controlled
recloser under permanent fault (Figure 4) and temporary
fault (Figure 5) conditions are given. The definition of the
terms and callouts used in Figures 4 and 5 are:
•Minimum Trip—Minimum trip is usually set at greater
than 2 times (200%) the maximum expected load current
to help prevent nuisance tripping on inrush currents, while
still being sensitive to low level faults.
•Over-Current—Any current that exceeds the minimum-
trip level of the control.
•Permanent Fault—Any over-current condition that per-
sists through the operating sequence of the control.
•Temporary Fault—Any over-current condition that does
not persist through the operating sequence of the control.
•Home Position—Position of sequence relay immediately after a
reset operation of the control. Reset operation can be either
manual, by moving the Manual Control Switch to “CLOSE”, or
automatic, after a temporary fault.
•Lockout—Sequence-relay position when over-current is not
cleared before the operating sequences of the control are
exceeded; control and recloser are tripped and held open until
manually reset with the Manual Control Switch, or remotely with
one of the remote close accessories.
•TCC—Time-Current-Characteristic-Curve.
•Reclose Interval—Time-delay interval for each reclosing opera-
tion within the operating sequence of the control.
•Fault Level Current—Any current that exceeds the minimum-
trip level of the control.
•Normal Load—Any current below the minimum-trip level of the
control.

6
Figure 6.
Functional block diagram ofType ME control.
Type ME Electronic Recloser Control
A functional block diagram of the control operation is shown
in Figure 6. Line current conditions are continuously monitored
by the three bushing-type current transformers in the recloser.
output from these transformers is fed to the trip network in the
control, which includes: the minimum-trip resistors, isolation
transformers, and rectifier circuits.
If current remains above the minimum-trip level, the tripping
—reclosing sequence of fast and delayed operations is repeat-
ed as programmed to lockout.
When current above the selected minimum-trip level is
detected in one or more phases, the following chain of events
will occur for an operating sequence of two-fast and two-
delayed operations:
The overcurrent signal is integrated with time on the charac-
teristic curve of the timing plug in Socket 1 to produce the sig-
nal which energizes the trip circuit. Energizing the trip circuit
connects the battery to the trip solenoid, tripping the recloser.
Simultaneously, the sequence relay advances to energize the
first reclosing interval-delay plug. Upon expiration of this
reclosing interval delay, a closing signal, from the control, clos-
es the recloser, and the sequence relay sets up the circuitry for
the second fast trip operation.
If the overcurrent is cleared before the operating sequence
reaches lockout, the reset-delay circuit starts timing when the
recloser closes into the unfaulted line. When the reset-delay
plug times out, the sequence relay is reset to the start or
“HOME” position and the control is ready for another two-fast,
two-delayed trip-operating sequence. However, should the
fault restart before the reset plug times out, the control will
continue its operating sequence, where it left off last, and the
reset-delay timing will be erased.
Ground-fault sensing and tripping operations occur exactly
the same as phase-fault sensing and tripping, except that
zero-sequence (ground) current is sensed instead of phase
current. The ground-fault circuitry includes its own minimum-
trip resistor, fast and delayed trip-timing plugs, and number of
fast operations setting. Reclose and reset intervals and opera-
tions to lockout are common for both phase-trip and ground-
trip modes of operation.
PERlODIC FIELD INSPECTlON
AND MAINTENANCE
Periodic inspection of the ME control should include these proce-
dures:
1. Remove control from service (if connected to an in service
recloser):
A. Switch Ground Trip Block switch to “BLOCK”.
B. Disconnect control cable from control.
2. Check the outer surface of the control cabinet for paint
scratches. Touch up any paint scratches to maintain the cabi-
net condition.
3. If the second entrance hole in the bottom of the cabinet is not
used, be sure that the hole plug is secure in the bottom of the
housing to maintain its weatherproof design.
4. Inspect the gasketing. Check the control interior for any mois-
ture or foreign matter. Repair or correct if necessary.
5. Check that the timing plugs, reset and reclosing interval
delays, and minimum-trip resistors are firmly in their sockets
(Figure 2).
6. Swing open the front panel. Check to see that all leads to tie-
board terminals are secure (Figure 7).
CAUTION: Shorting battery positive to battery
negative at the battery test terminals will cause per-
manent damage to the control. The control will be inoper-
ative and possible misoperation (unintentional operation)
of the recloser may result.
!
CAUTION: In order to prevent possible, misoper-
ation (unintentional operation) of the recloser, the
control must be removed from service prior to performing
any maintenance, testing or programming changes.
!
WARNING: High voltage. Contact with high volt-
age will cause serious personal injury or death.
Follow all locally approved safety procedures when work-
ing around high voltage lines and equipment.
!

S280-75-2
7
Figure 7.
View of a Form 3A tie board (back if front panel. Notations in parenthesis after callout refer to the circuit points on the tie board dia-
gram illustrated in Figure 57.
88939KMA
7. Check battery voltage. Three battery test terminals in the
lower right corner of the panel (Figure 2) are used to check
battery voltage, quiescent drain, and charging rate. Refer
to the “Battery Maintenance” instructions in this manual.
The left-hand pair of terminals (V) are connected directly
across the battery output to check battery voltage. The red
terminal (far left) is positive (+). The output voltage of a fully
charged battery will normally be 26-28-volts. If lower, refer
to the “Detailed Circuit check—Battery Charging” and/or
“Battery Maintenance” section of this manual.
If necessary, recharge the battery, as detailed in the
“Battery Maintenance” section.
8. Make sure circuit boards are secure in their receptacles.
Examine wiring between transformers and tie boards to see if
connections are in order. Close front panel and secure firmly
with fasteners.

8
Figure 8.
Detailed block diagram ofType ME control in lockout position. Letters in circles (A,B, etc.) refer to control cable receptacle connec-
tion pins and to test points referred to in the "Troubleshooting andTesting" section.
Type ME Electronic Recloser Control
9. Check control battery charging rate before returning the
control/recloser to service; see the “Battery Maintenance”
section for details on charging rate testing.
NOTE: The servicing procedures outlined in this manual are for a
standard Type ME Form 3 and Form 3A control and do not include
the operational checks of any of the accessories that may be
attached. In some cases the accessories may modify the standard
operating characteristics of the Type ME control. Refer to catalog
bulletin 280-75 for accessories furnished and/or Accessory opera-
tion, Testing, and Installation manuals listed in Appendix lll of this
manual.
10. Return control to service:
A. Check battery to ensure that it is properly connected.
B. Move Manual Control Switch to match position of reclos-
er (open or closed).
C. Reconnect control cable to control.
D. Switch Ground Trip Block switch to “NORMAL”.
SERVICING
Circuit Logic
Line current conditions are monitored continuously by three
bushing-current transformers in the recloser, one on each
phase. The current transformers are connected to the control-
phase matching transformers in a typical “WYE” to “WYE” con-
figuration. Zero-sequence current is derived from the vector sum
of the phase currents and fed to a fourth ground matching trans-
former.
The minimum-trip resistors calibrate the overall recloser trip
current by diverting a portion of the recloser current from the
control matching transformers.
The four matching transformers isolate the various signals
from each other and deliver an ac voltage proportional to the
recloser-line current to the phase-trip No.1 end ground-trip No.
1 boards.

S280-75-2
9
Figure 9.
Diagram of Form 3A tie board showing plug-in circuit board location. Form 3 tie boards are similar (see Figure 18), except some of
the terminals are missing or in a slightly different location.
From this point, phase- and ground-trip signals are very
similar, and only phase signals will be described.
The phase-trip No. 1 board circuitry, consisting of a three-
phase full-wave rectifier, which converts the ac input signal
from three phase to a single do signal. The do signal is
applied to the phase-trip No. 2 board which measures the do
level, and determines whether a fault current exists at the
recloser.
If the load current conditions are in the fault region, the mini-
mum-trip portion of the phase-trip No. 2 board switches on, allow-
ing the time-current curve circuits to start their programmed time
delay. The time-current curves are driven by the same do voltage
output of the phase-trip No. 1 board, and as a result higher fault-
current levels will result in a shorter time delay before tripping.

10
Figure 10.
Battery-charging board,
Type ME Electronic Recloser Control
82027aKMA 88940KMA
After the timing plugs have completed their cycle, the output
board is triggered. The output board applies a 24-Vdc signal to
the recloser trip coil, the control counter, and the control
sequence relay. The output board is switched off when the
recloser “a” contact de-energize the circuitry, including the
sequence relay. The sequence-relay rotary contacts then
advance to the next position in the tripping and reclosing cycle.
The recloser “b” contacts then close, connecting battery
power to the reclose intervals of the control which provides a
time delay for reclosing the recloser. The rotary close solenoid
is then energized through the recloser “b” contacts, the control
fuse, and the reclose portion of the control circuitry. This
mechanically closes the closing contactor in the recloser—
allowing the closing solenoid to be energized.
After closing the recloser “b” contact opens, this removes do
power from the entire closing circuit.
The automatic reset portion of the Form 3A control is ener-
gized by the sequence relay and the recloser “a” contact; if a
fault does not exist on either phase or ground trip, reset timing
is initiated (unless connected to time after first trip). If a fault
exists on either phase or ground, the reset timing is erased
and is blocked for the duration of the fault. For Form 3, reset
timing begins after the first tripping operation. Should the reset
time-delay operate before the recloser has locked open, the
sequence relay will return to the starting position and a new
sequence of operations will begin.
NOTE: F3 controls can be updated, with the addition of the KA304ME,
to duplicate the automatic reset mode of a F3A control.
The Form 3A control battery is charged by the ac input
(120-or 240-Vac) to the control. The ac input is applied through
a current limiting resistor and isolating transformer to the bat-
tery charging board. The battery charging board converts the
input to dc and supplies charging current to the control battery.
on Form 3 controls, the battery is charged by bushing current
transformers on the recloser unless equipped with an ac
charging accessory. on motor operated reclosers, the ac sup-
ply to the motor also supplies power to the Form 3 battery
charger.
Plug-in Circuit Boards - Function
The ME control contains a total of eight plug-in circuit boards on
which are assembled the bulk of its operating circuits. The
boards and their function will be discussed individually in the
order they appear on the tie board, starting with the bottom
board.
BATTERY-CHARGING BOARD
The lowest board in the rack is the battery-charging board
(Figure 10). Prior to serial number 50070 controls were equipped
with a fixed rate potential charging board (MEA 388-1 ) as stan-
dard equipment. After serial number 50070 a temperature regu-
lated battery-charging board (MEA 1172) has been supplied as
standard. !
The fixed rate charging board consists of a full-wave bridge
rectifier, a capacitor, a reference zener diode and some resis-
tors. The resistors control the charging rate into the battery, from
the zener supply voltage.
The temperature regulated battery-charging board also makes
use of a full-wave bridge rectifier, a capacitor, and a zener diode
(used to regulate voltage). In addition a temperature sensitive
thermistor is added to regulate the bias over a pair of transistors.
These transistors are used in the circuit output to regulate the
charging rate, in response to temperature. Several resistors are
used in the transistor bias circuit; and one resistor is used to limit
the maximum charging rate. A diode is placed in the output to
protect the circuit from reverse bias. ‘
Energy for either battery-charging board comes from the 120-
or 240-Vac source,through current limiting resistance and a
potential transformer.
CAUTION: Do not replace a MEA 388-1 board
with a MEA 1172, or vice-versa. A MEA 388-1
board will be damaged if replaced ffor a MEA 1172. A
MEA 1172 will not provide adequate charging current if
replaced for a MEA 388-1
!