Cooper McGraw-Edison VR-32 Installation and operating instructions

Contents
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Receiving, Installation and Maintenance . . . . . . . 1-1
Control Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Control Function Codes . . . . . . . . . . . . . . . . . . . . . 3-1
Control Advanced Features . . . . . . . . . . . . . . . . . . 4-1
Tap Changer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . 6-1
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
General
McGraw-Edison®VR-32 voltage regulators are
regulating auto-transformers. They regulate rated
voltage from 10% raise (boost) to 10% lower (buck) in 32
approximately 5/8percent steps.
McGraw-Edison regulators are supplied with the
following standard features:
• Dual-rated 55/65°C rise
• ADD-AMP™ capability
• Unit construction
• Sealed-tank construction
• Pressure relief device
• 17” minimum creep bushings with clamp-type
connectors
• MOV-type external series arrester
• Shunt arrester mounting bosses
• Two laser-etched nameplates
• Oil sight gauge
• Upper filter press connection
• Drain valve and oil-sampling device
• CE mark compliant control
• Control cable quick disconnect
The 65°C rise insulation system and the sealed-tank
construction allow for a bonus capacity 12% above the
55°C nominal rating without loss of normal insulation
life. The bonus capacity is stated on the nameplate
(such as 167/187 kVA for a nominal 167 kVA regulator).
All McGraw-Edison regulators are manufactured and
tested to ANSI standard C57.15.
Unit construction, which suspends the internal assembly
from the cover, allows for ease of inspection and
maintenance.
There are three types of step-voltage regulators: source-
side series winding (Type B), load-side series winding
(Type A), and series transformer. McGraw-Edison
regulators are usually equipped with an equalizer
winding. The nameplates located on the tank and control
box define the power circuit.
Voltage Regulators
McGraw-Edison®VR-32 Regulator and CL-5 Series
Control Installation, Operation and Maintenance
Instructions and Parts Replacement Information S225-10-10
October 2001 • Supersedes 12/00 • © 2001 Cooper Power Systems, Inc.
Printed in U.S.A.
These instructions do not claim to cover all details or variations in the equipment, procedure, or process described, nor to provide directions 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 representative.
Figure 1.
VR-32 Voltage Regulator with CL-5 Series Control
Service Information

McGraw-Edison VR-32 Regulator and CL-5 Series Control
2
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
equipment 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
installation 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,
related to specific tasks and procedures, are located
throughout the manual.
Hazard Statement Definitions
This manual may contain these 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 hazard-
ous 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.
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 INFORMATION
WARNING: Before installing, operating,
maintaining, 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.
WARNING: This equipment is not intended to
protect human life. Follow all locally approved
procedures and safety practices when installing or
operating this equipment. Failure to comply may
result in death, severe personal injury and equipment
damage.
DANGER: Hazardous voltage. Contact with
hazardous voltage will cause death or severe
personal injury. Follow all locally approved safety
procedures when working around high voltage lines
and equipment.
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 procedures. These instructions are
written for such personnel and are not a substitute for
adequate training and experience in safety pro-
cedures. Failure to properly select, install or maintain
this equipment can result in death, severe personal
injury, and equipment damage.

S225-10-10
3
Figure 2.
External Features of the VR-32 Voltage Regulator
MOV-TYPE SERIES
ARRESTER
UPPER FILTER PRESS
CONNECTION
SHUNT ARRESTER
MOUNTING BOSSES
(3 PER BUSHING)
REGULATOR LIFTING LUGS
LASER-ETCHED
NAMEPLATES (2)
(SECOND ON CONTROL
ENCLOSURE DOOR)
BALL-TYPE OIL
SIGHT GAUGE
PANEL-TYPE RADIATORS
CONDUCTOR
STABILIZING BOSS
HANDHOLE COVER
COVER
AUTOMATIC
PRESSURE RELIEF
DEVICE
CONTROL CABLE WITH
DISCONNECT PLUG
LOCKABLE CONTROL
ENCLOSURE
CONTROL
POSITION INDICATOR
JUNCTION BOX
GROUND BOSSES (2)
DRAIN VALVE & OIL
SAMPLING DEVICE
BOLT-DOWN PROVISIONS (4)
CLAMP-TYPE CONNECTORS
THREADED-STUD
BUSHING TERMINALS
BUSHINGS
INTERNAL ASSEMBLY
LIFTING EYES
POLE MOUNTING
BRACKETS

1-1
Cooper Power Systems
Receiving
Inspection
Prior to shipment, the regulator is thoroughly tested
and inspected at the factory. Immediately upon receipt of
the regulator shipment, before unloading, a thorough
inspection should be made for damage, evidence of
rough handling or shortages. The position indicator,
junction box, arrester, radiators and bushings should
all be inspected for evidence of damage. Should this
initial inspection reveal evidence of rough handling,
damage, or shortages, it should be noted on the bill
of lading and a claim should immediately be made
with the carrier. Also, notify Cooper Power Systems,
2300 Badger Drive, Waukesha, Wisconsin 53188,
attention Service Manager.
Unloading
When an overhead crane is used for unloading, the
regulator must be lifted by means of a sling and
spreader bar utilizing the tank-mounted lifting lugs
which are shown in Figure 2. Do not lift the entire
unit with the lifting eyes on the cover. The lifting
eyes are only to be used to untank the internal assembly
which is attached to the cover.
Storing
If the regulator is not to be placed into immediate
use, it can be stored with minimal precautions. Store
the unit where the possibility of mechanical damage
is minimized.
Installation
Pre-Installation Inspection
Before connecting the regulator to the line, make the
following inspection:
1. Check oil sight gauge. Look for visible signs
of oil leakage.
2. Examine series arrester for damage. If damaged,
install a new arrester of same voltage rating.
3. Inspect porcelain bushings for damage or leaking
seals. If there is a suspicion that moisture has
entered unit, remove handhole cover and inspect
for evidence of moisture such as rust or water
tracks in oil. If moisture has entered that tank, dry
regulator and filter oil before putting unit in service.
See Table 1-5, page 1-12, for values that oil should
meet. Be sure to properly replace handhole cover.
4. Check position indicator for damage. When
cleaning the faceplate, do NOT use solvent or fuel.
5. If regulator has been stored for some time,
test dielectric strength of oil according to
Table 1-5, page 1-12.
6. Regulator may be energized at rated voltage (with
caution) and an operational check (see page 1-10)
can be performed. (This procedure is optional.)
7. A high-potential test may be done to ensure
adequate electrical clearances to ground. (This
procedure is optional.)
Receiving, Installation
and Maintenance
WARNING: The cover may fracture if the
cover-mounted lifting eyes are used to lift the
entire unit. Lift the entire unit only with tank-mounted
lifting lugs.
Figure 1-1.
Regulating a single-phase circuit
SHUNT
ARRESTERS
SERIES
ARRESTER
DISCONNECTS
BYPASS SWITCH
Ø
N
SL
LOAD
SOURCE
S
L
Figure 1-2.
Regulating one phase of a three-phase, four-wire circuit
SHUNT
ARRESTERS
SERIES
ARRESTER
DISCONNECTS
BYPASS SWITCH
A
B
C
N
SL
LOAD
SOURCE
S
L
McGraw-Edison VR-32 Regulator and CL-5 Series Control
CAUTION: Do not subject tap changer to
temperatures above 150°F (66°C). To do so
may cause damage to the contact panels, resulting in
misalignment of the contacts.

1-2
Systems Connections
A regulator can regulate a single-phase circuit, or
one phase of a three-phase wye (star) or delta circuit.
Two regulators connected phase-to-phase in open-delta,
or three regulators connected phase-to-phase in closed-
delta, can regulate a three-phase, three-wire circuit.
When connected in wye, three regulators can regulate a
three-phase, four-wire multi-grounded wye circuit. Three
regulators should not be connected directly in wye on
three-phase, three-wire circuits because of the
probability of neutral shift, unless the neutral is
connected to the neutral of a wye-connected bank of
distribution transformers or to the substation transformer
secondary neutral. Typical connection diagrams are
illustrated in Figures 1-1 through 1-5.
WARNING: Connect the “S” bushing to the
source, the “L” bushing to the load, and the
“SL” bushing to neutral. To do otherwise may cause
excessively high or low voltage on the load side of the
regulator or cause severe damage to the regulator.
Figure 1-3.
Regulating a three-phase, three-wire circuit with
two regulators
SHUNT
ARRESTER
SERIES
ARRESTER
DISCONNECTS
BYPASS SWITCH
A
B
C
S
L
12
SL SL
LOAD
SOURCE
S
L
Figure 1-4.
Regulating a three-phase, four-wire, multi-grounded wye (star) circuit with three regulators
SERIES
ARRESTER
SHUNT
ARRESTER
DISCONNECTS
BYPASS SWITCH
BYPASS SWITCH
BYPASS SWITCH
A
B
C
N
123
SL SL SL
LOAD
SOURCE
S
L
S
L
S
L
Figure 1-5.
Regulating a three-phase, three-wire circuit with three regulators
NOTE: Individual switches are shown for the bypass and disconnect functions. However, a regulator-bypass-disconnect switch can be used in
each phase to perform the bypassing and disconnecting operations in sequence. Each of these switches replaces one bypass and two disconnect
switches shown in the diagrams.
SHUNT
ARRESTER
DISCONNECTS
BYPASS SWITCH
BYPASS SWITCH
BYPASS SWITCH
A
B
C
123
SL
LOAD
SOURCE
SL SL
S
L
S
L
S
L
SERIES
ARRESTER
S225-10-10

McGraw-Edison VR-32 Regulator and CL-5 Series Control
1-3
Mounting
A regulator can be mounted on a pole, crossarm
platform or elevating structure. Regulators are normally
provided with either pole mounting brackets or a
substation base according to the rating. An elevating
structure can be provided to simplify substation
installation of regulators requiring a specific live part-to-
ground clearance.
The regulator control can be mounted on the regulator
tank, or at a point remote from the unit. Rubber-covered
cable is available in 5 foot (1.52 m) incremental lengths
from 15 feet (4.57 m) to 45 feet (13.7 m) for intercon-
nection between the control and the regulator.
Placing a Regulator in Service
Regulators can be placed in service without interrupting
load continuity once bypass and disconnect switches are
installed.
Procedure A should be followed when one bypass
switch and two disconnect switches are used. Procedure
B should be followed when a regulator bypass-dis-
connect switch is used.
A ground pad tapped for 1/2 inch 13 NC thread is
provided on the side of the control cabinet.
When energizing the control from an external source,
use only a 120 V ac source, unless the control is set up
for 240 volts, indicated by a decal adjacent to the
terminals.
Figure 1-6.
Back panel
KNIFE
SWITCHES RCT
WARNING:Closing the bypass switch with
the tap changer in any position other than
neutral will short-circuit part of the series winding.
Before closing the bypass switch, the regulator must
be in neutral, the control switch set to OFF and the
motor circuit fuse removed.
WARNING: For the protection of personnel
from surges while operating the control, the
following control enclosure grounding procedures
should be followed:
If the enclosure is attached to the regulator tank or
is remote from the tank but only accessible with a
ladder, then the enclosure should be connected to
the regulator-to-ground rod conductor.
If the enclosure is accessible by personnel standing
on the ground, then the enclosure should be directly
connected to a ground mat and ground rod.
CAUTION: Only an ac power supply is
to be used to energize the control externally;
direct current (dc) to alternating current (ac) inverters
are not to be used due to excessive harmonics that
can be generated, resulting in damage to the front
panel.
CAUTION: Be mindful of polarity when using an
external source. Polarity reversal may result in
control damage.

S225-10-10
1-4
Procedure A: One Bypass Switch and
Two Disconnect Switches
1. Verify from regulator nameplate that control circuit
is connected for proper regulated system voltage.
2. Set power switch to OFF and control switch to OFF.
3. Knife switches on back panel should be set with V1
(potential switch) (and V6if present) closed (pushed
in), and C (CT shorting switch) open (pulled out).
See Figure 1-6.
4. Close source-load (SL) disconnect switch if
available.
5. Close source (S) disconnect switch.
6. Set power switch to INTERNAL and control switch
to MANUAL.
7. Lift raise-lower switch to operate tap changer two
or three steps, then depress raise-lower switch
to return tap changer to the neutral position.
(These steps verify that the mechanism is
functional.) When on neutral, neutral light will
glow continuously and position indicator will
point to zero.
8. With regulator in neutral position, set control switch
to OFF, set power switch to OFF, open V1knife
switch (and V6if present), and remove 6 A motor
fuse.
9. Close load (L) disconnect switch.
10. Open bypass switch. The regulator is now
energized.
11. Replace 6 A motor fuse, close V1knife switch and
set power switch to INTERNAL.
12. Go to Setting the Control for Service, following.
Procedure B: Regulator Bypass-
Disconnect Switch
1. Verify from regulator nameplate that control circuit
is connected for proper regulated system voltage.
2. Set control switch to MANUAL and power switch to
EXTERNAL.
3. Knife switches on back panel should be set with V1
(potential switch) (and V6if present) open (pulled
out), and C (CT shorting switch) closed (pushed in).
See Figure 1-6.
4. Apply 120 V (or other voltage as indicated by the
decal) to external source terminals, if available. If
not, proceed to Step 7, below.
5. Lift raise-lower switch to operate tap changer two or
three steps, then depress raise-lower switch to
return tap changer to neutral position. (These steps
verify that the mechanism is functional.) When on
neutral, neutral light will glow continuously and
position indicator will point to zero.
6. Remove the voltage from external source terminals.
7. With regulator in the neutral position, set control
switch to OFF, set power switch to OFF, and
remove 6 A motor fuse.
8. Close source-load (SL) disconnect switch. (Delta
applications only.)
9. Close regulator bypass-disconnect switch. The
regulator is now energized.
10. Replace 6 A motor fuse, close V1knife switch (and
V6if present), open C knife switch, and set power
switch to INTERNAL.
11. Go to Setting the Control for Service, following.
Setting the Control for Service
There are more than 50 parameters on the control which
are user-selectable. Many of these values pertain to the
operation of the advanced features that are not needed
for normal regulator operations. A full detailed
description of each of the features is given in the Control
Advanced Features section, along with set-up
instructions.
The control must be energized to perform the
programming. This can be accomplished by applying
120 V (or other voltage as indicated by the decal) to the
external source terminals and placing the power switch
in the external position. Alternately, the regulator may be
energized at line potential, and the power switch placed
in the internal position. When power is applied to the
control, all segments of the display will light, followed by
a PASS indication. If the FAIL message is encountered,
see Diagnostics, on page 2-5.
Accessing the Control
Before gaining access to change the control settings, the
proper security level must be activated. This is
accomplished by entering a security code at the
Function Code 99 location. Depress the following
keys on the keypad:
FUNCTION, 99, ENTER
12121, ENTER
The proper level of security to change operational
settings has now been activated.
All programming of the control is done through the
keypad or communication ports.
For quick set-up of Cooper Power Systems regulators,
see Table 1-1, page 1-5. For complete set-up, see
Table1-2, page 1-6 for a detailed checklist for control
programming. The only two parameters this checklist
does not address are voltage and current calibration,
Function Codes 47 and 48.

McGraw-Edison VR-32 Regulator and CL-5 Series Control
1-5
TABLE 1-1
Setting the Controls for Basic Operation
Security System
Keys to Depress F.C Display Description
FUNCTION, 99, ENTER 99 _ _ _ _ _
12121, ENTER Func _ _ The security system is now activated for changing operational settings
Set Voltage
Range: 100.0 - 135.0 (Factory Setting: 120.0)
Keys to Depress F.C Display Description
1 01 120.0 This is the set voltage as shipped from the factory
Change 01 _ _ _._c Enter the desired value. Example: 122.0
1220, ENTER 01 122.0 The set voltage is now 122.0 volts.
Bandwith
Range: 1.0 - 6.0 (Factory Setting: 2.0)
Keys to Depress F.C. Display Description
2 02 2.0 This is the bandwith as shipped from the factory
Change 02 _._c Enter the desired value. Example: 3.0
30, ENTER 02 3.0 The bandwidth is now 3.0 volts
Time Delay
Range: 5 - 180 (Factory Setting: 30)
Keys to Depress F.C. Display Description
3 03 30 This is the time delay as shipped from the factory
Change 03 _ _ _c Enter the desired value. Example: 45
45, ENTER 03 45 The time delay is now 45 seconds
Line Drop Compensation, Resistance
Range: -96.0 - +96.0 (Factory Setting: 0.0)
Keys to Depress F.C. Display Description
4 04 0.0 This is the resistive compensation as shipped from the factory
Change 04 _ _._c Enter the desired value. Example: 5.0
50, ENTER 04 5.0 The resistive compensation is now 5.0 volts
Line Drop Compensation, Reactance
Range: -96.0 - +96.0 (Factory Setting: 0.0)
Keys to Depress F.C. Display Description
5 05 0.0 This is the reactive compensation as shipped from the factory
Change 05 _ _._c Enter the desired value. Example: 3.0
30, ENTER 05 3.0 The reactive compensation is now 3.0 volts
Regulator Configuration
Range: 0 - 2 (Factory Setting: 0 [Wye or Star])
Keys to Depress F.C. Display Description
FUNCTION, 41, ENTER 41 0 This is the regulator configuration as shipped from the factory
Change 41 _c Enter the desired value. Example: 1
1, ENTER 41 1 The regulator configuration is now Delta Lag
Control Operating Modes
Range: 0 - 2 (Factory Setting: 0 [Sequential])
Keys to Depress F.C. Display Description
FUNCTION, 42, ENTER 42 0 This is the control operating mode as shipped from the factory
Change 42 _c Enter the desired value. Example: 1
1, ENTER 42 1 The control operating mode is now Time Integrating
System Line Voltage
Range: 1200 - 36000 (Factory Setting: Regulator Rated Voltage)
Keys to Depress F.C. Display Description
FUNCTION, 43, ENTER 43 7620 This is the system line voltage for a 7620 volt regulator as shipped from the factory
Change 43 _ _ _ _ _c Enter the desired value. Example: 7200
7200, ENTER 43 1 The system line voltage is now 7200 volts
Overall Potential Transformer Ratio
Range: 10 - 300 (Factory Setting: PT ratio for Regulator Rated Voltage)
Keys to Depress F.C. Display Description
FUNCTION, 44, ENTER 44 63.5 This is the overall PT ratio for a 7620 volt regulator as shipped from the factory
Change 44 _ _ _._c Enter the desired value. Example: 60.0
600, ENTER 44 60.0 The system line voltage is now 7200 volts
Calendar Clock
Range: 10 - 300 (Factory Default Setting XX)
Keys to Depress F.C. Display Description
FUNCTION, 50, ENTER 50 1.01 This is the default value for the date.
Scroll up 50 x.xx This is the present time (hour/minute).
Scroll up 50 1d 90 This is the default value for the year, 1990.
Change 50 1 _ _c Enter the desired value for Year. Example: 2000
00, ENTER 50 1 0 The Year is now 2000.
Scroll up 50 2 1 This is the default value for the month, January.
Change 50 2 _ _c Enter the desired value for Month. Example: October
10, ENTER 50 2 10 The month is now October.
Scroll up 50 3 1 This is the default value for the Day 1.
Change 50 3 _ _c Enter the desired value for the Day. Example 24.
24, ENTER 50 3 24 The Day is now 24.
Scroll up 50 4 xx This is the present value for the Hour, xx.
Change 50 4 _ _c Enter the desired value for Hour. Example: 2:00 P.M.
14, ENTER 50 4 14 The Hour is now 14. Military Time.
Scroll up 50 5 xx This is the present value for the Minutes. Example: xx.
Change 50 5 _ _c Enter the desired value for Minutes. Example: 30.
30, ENTER 50 5 30 The Minutes is now 30.
Scroll up 50 6 xx This is the present value for the Seconds, xx.
Change 50 6 _ _c Enter the desired value for Seconds. Example 45.
45, ENTER 50 6 45 The Seconds is now 45.

S225-10-10
1-6
TABLE 1-2
CL-5 Series Control Programming Checklist
Step Activity/Question Function Factory Owner Check Next
Code Set Set Step
A Power up control or run Self Test (FC 91). Pass = B; Fail = Refer to page 2-5
B Access Security Level 3. 99 32123 C
Set Voltage 1 120
Bandwidth 2 2
C Set the Forward Power Flow Control Settings -- Time Delay 3 30
LDC Resistance 4 0
LDC Reactance 5 0 D
D Verify position indicator is in sync with tap changer by stepping
through the neutral position. E
E Is the Control Tap Position in sync with the position indicator? 12P No = F; Yes = G
F Set the Control Tap Position. 12P G
G Is Source Side Voltage Calculation required? 39 0 No = J; Yes = H
H Activate Source Side Calculation. 39 1 I
I Set Type of Regulator. (A and Series Transformer =1; B=2) 39-1 Nameplate value J
J Change Control I.D.? 40 Control Serial No. No = L; Yes = K
K Set Control I.D. 40 L
L Is regulator bank configuration closed or open delta? No = O; Yes = M
M Refer to Determination of Leading or Lagging, page 1-7. N
N Set Regulator Configuration. 41 0 O
O Change Operating Mode? (Factory set for sequential) 42 0 No = Q; Yes = P
P Set Operating Mode. 42 Q
Q Set System Line Voltage. 43 Rated Voltage R
R Set Overall P.T. Ratio. (from Nameplate) 44 Rated P.T.Ratio S
S Verify C.T. Primary Rating. (from Nameplate) 45 Rated C.T. Primary T
T Change Demand Time Interval? 46 15 No = V; Yes = U
USet Demand Time Interval. 46 V
V Change Tap Changer selection? 49 Nameplate value No = X; Yes = W
W Set Tap Changer selection. 49 Nameplate value X
X Are date and time correct? 50 No = Y; Yes = Z
Year 50-1
Month 50-2
Y Set the required date and time by way of subfunctions- Day 50-3
Hour 50-4
Minute 50-5
Second 50-6 Z
Z Should control be set up to react to a reverse power flow condition? No = AA; Yes = BA (Table 1-3)
AA Verify Reverse Sensing Mode is set on Locked Forward (0). 56 0 AB
AB Verify the baud rate of Local Channel #1 (Data Reader) is set for 4800. 60 4 AC
AC Set up Remote Communications Channel #2? No = AE; Yes = AD
64
65
AD Set Remote Communications Function Codes as desired. 66
67
68-1
68-2 AE
AE Verify the Blocking Status is normal. 69 0 AF
AF Is Voltage Reduction required? 70 0 No = AH; Yes = AG
70
72
AG Set Voltage Reduction Function Codes as desired. 73
74
75
76
77 AH
AH Is Soft Add-Amp required? 79* 0 No = AJ; Yes = AI
AI Activate Soft Add-Amp. 79* 1
Set Add-Amp Raise Limit. 79-1*
Set Add-Amp Lower Limit. 79-2* AJ
AJ Is Voltage Limiter required? 80 0 No = AL; Yes = AK
80
AK Set Voltage Limiter Function Codes as desired. 81
82 AL
85*
85-1
AL Set Profile Recorder Parameters. 85-2
85-3
85-4
85-5* AM
AM Is Security Override required? 92 0 No = AO; Yes = AN
AN Set Security Override. 92 1 AO
AO Change Security Codes? No = AQ; Yes = AP
96 1234
AP Set Security Codes as desired. 97 12121
98 32123 AQ
AQ Reset Metering & Tap Position. 38 AR
AR Take Data Reader reading (optional). AS
AS Press DISPLAY OFF key to return to Base Security Level. AT
AT CONTROL IS NOW FULLY PROGRAMMED.

Delta-connected (Line-to-line)
Regulators
Determination of Leading or Lagging
For a regulator to operate properly when connected
phase to phase, it is necessary for the control to be
programmed with the correct regulator configuration in
Function Code 41. It must be determined whether it is
connected “leading” or “lagging”. The control aids the
operator in making this determination.
1. Regulator must be installed.
2. Power switch must be set to Internal.
3. V1knife switch (and V6, if present) must be closed.
4. Knife switch C must be open. Current must be
flowing.
5. Control (Auto/Remote-Off-Manual) switch may be in
any position.
6. For regulator #1, set Function Code 41 to 1 (Delta
Lag) and record the Power Factor, Function
Code 13.
7. For the same regulator set Function Code 41 to 2
(Delta Lead) and record the Power Factor.
8. Repeat steps 6 and 7 for each regulator in the
bank.
For each regulator, one of the two power factor values
will be reasonable and the other will be unreasonable.
Set the Regulator Configuration (FC 41) to the value
which produced the reasonable power factor.
For one regulator: Set Function Code 41 to the value
which produced the reasonable power factor.
For two regulators in open delta: See the example in
Table 1-4. In an open delta connection one of the
regulators will always be leading and the other lagging.
The reasonable power factor for each regulator should
be very close to the typical power factor of the system. In
this example, regulator #1 is the lagging unit and
regulator #2 is the leading unit.
For three regulators in closed delta: In closed delta,
all three regulators are either leading or lagging,
depending on how they are connected relative to
generator phase rotation.
Step Activity/Question Function Factory Owner Check Next
Code Set Set Step
BA Is voltage regulation required on the source and load side of regulator? No = BC; Yes = BB
BB Is dispersed generation available on load side of regulator? No = BH; Yes = BI
BC Is voltage regulation required on the source side of regulator during a No = BD; Yes = BJ
reversal of power flow?
BD Is the load side of regulator dedicated to a Co-generation facility? No = BE; Yes = BK
BE Is Tap to Neutral required for excursions below a reverse power No = BF; Yes = BL
threshold?
BF Set Reverse Sensing Mode to Reverse Idle. 56 2 BG
BG Is source side metering required during a reversal of power flow? No = BQ; Yes = BN
BH Set Reverse Sensing Mode to Bi-directional. 56 3 BM, BN & BO
BI Set Reverse Sensing Mode to Reactive Bi-directional 56 6 BM, BN & BO
BJ Set Reverse Sensing Mode to Lock Reverse. 56 1 BM & BO
BK Set Reverse Sensing Mode to Co-Generation. 56 5 BM, BN & BO
BL Set Reverse Sensing Mode to Neutral Idle. 56 4 BM & BO
Set Voltage 51 120
Bandwidth 52 2
BM Set the Reverse Power Flow Control Settings - Time Delay 53 30
LDC Resistance 54 0
LDC Reactance 55 0 BR
BN Set Reverse Power Threshold (%) 57 2 BR
BO Does regulator have an internal or external source side sensing voltage? No = BP; Yes = BR
BP Activate Source Side Calculation. 39 1 BQ
BQ Set Type of Regulator. (A and Series Transformer =1; B=2) 39-1
Nameplate value BR
BR REQUIRED REVERSE MODE IS PROGRAMMED. See Table 1.2 - AB
TABLE 1-3
CL-5 Series Control Programming Checklist for Reverse Power Flow Detection and Operation
McGraw-Edison VR-32 Regulator and CL-5 Series Control
1-7
TABLE 1-4
Sample Power Factor Values for Regulators Connected in
Open Delta Configuration
Configuration Recorded Power Factor (FC 13)
(FC 41)
Set to This Reg. #1 Reg. #2
Value
1
(Delta Lag) 0.94* -0.77
2
(Delta Lead) 0.17 0.93*
*Reasonable power factor values.