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Digital On-load Tap-Changer Voltage ControllerDigital On load Tap Changer Voltage ControllerTAPCON® 250
Reinhausen Manufacturing Inc.
Humboldt TN USAHumboldt, TN USA
Contents
• History of MR Automatic Voltage Regulation• History of MR Automatic Voltage Regulation
• Foundation of Today’s TAPCON® series• Foundation of Today’s TAPCON® series
The latest TAPCON® Technology• The latest TAPCON® Technology TAPCON® 250
• Control Methods for Transformersincl. samples
August 2009 Page 2
p
History Generations up to TAPCON® 230
MK 201982
MK 301988
VC 1001997
TAPCON®2302002
MK 101972
August 2009 Page 3
History Generations up to TAPCON® 240
TAPCON® 2402002
VC 100EVC 100E1998
MK 30E1988
MK 20E1983
August 2009 Page 4
TAPCON® Technology
Voltage ControlTAPCON® 240
Voltage ControlTAPCON® 230
August 2009 Page 5
TAPCON® 240 TAPCON 230
TAPCON® 250 The Latest TAPCON® - Technology
TAPCON® 250
• The TAPCON® specifically forUS end-users
• Interchangeable into today’sspecific schemesspecific schemes
• Size allows easy retrofitl tisolutions
August 2009 Page 6
TAPCON® 250 Latest Technology
Features
• Informative 128x128 dotgraphic display
• LED’s and contacts forstatus and conditions
• simple and clear menus tosimple and clear menus tonavigate
• NORMSET for easy parameterizationparameterization
• TAPCON®-trol System Visualization Software
August 2009 Page 7
TAPCON® 250 Latest Technology
Features
• Line Drop Compensation byR and X compensation Z tiZ compensation
• Several Paralleling Methods in one device without additional hardware
circulating currentM t F llMaster - Follower
• Four different levels for
August 2009 Page 8
voltage regulation
TAPCON® 250 Latest Technology
Features
• Reverse Power Operation
• Operations Counter
• Tap Position Knowledge by• Tap Position Knowledge by current loop method
T P iti Li it• Tap Position Limits
• Tap Position Record
August 2009 Page 9
TAPCON® 250 Latest Technology
Inputs
Voltage InputMeasuring Potential Transformer 120VAC auxiliary Power Supply 12V DC
Current Input 0.2 A
Four Programmable Command InputsSettable for Alternate Voltage Levels 2, 3, or 4, Auto Tapchange Inhibit, Parallel Group 1 or 2, Master/Follower, Quicktap, or Remote Voltage Level Activation
Auto/Manual and Remote/Local Activation Inputs
August 2009 Page 10
Operation Count Input
TAPCON® 250 Latest Technology
Outputs
• Isolated Form C Contacts Showing Modes or Status
MANUAL/AUTOUser programmable alarmsStatus Alarm...
• Tap Position (analog)
August 2009 Page 11
TAPCON® 250 Latest Technology
Analog Interface
• Direct tap positionknowledge
• Choice of tap position input: 0 … 1 mA0 … 20 mA4 20 A4 … 20 mApotentiometer
• Choice of tap position output:p p p0 … 1 mA4 … 20 mA
Analog Interface ( AI )
August 2009 Page 12
g ( )
TAPCON® 250 Latest Technology
Communications
• Choice of communication ports:
RS232 RS485RS232, RS485,fiber opticalRJ45 (modem or Ethernet)
• Choice of communication protocols :
DNP3.0MODBUS ASCII & RTU
Communications Interface ( CI )
MODBUS ASCII & RTUon demand:
e.g. IEC60870 –103,104
August 2009 Page 13
Communications Interface ( CI )
TAPCON® 250 Latest Technology
TAPCON® 250
• MR has placed the TAPCON® series technology into this versatile gypackage
• The adaptability to retrofit into existing installations with the leading edge technology
August 2009 Page 14
TAPCON® 250 Control Methods for Transformers
• Overview of different Control Schemes
• Circulating Current Analog Paralleling
• Circulating Current Digital Paralleling
August 2009 Page 15
TAPCON® 250 Configurations
Single Installation
XPA I XPA I
Analog Paralleling acc. to ANSI C57.12.10
Digital Parallelingvia CAN bus
August 2009 Page 16
TAPCON® 250 Configurations
Retrofit with Adapter Panel TAPCON® 250-67Single Installation
• Standard installation forstand alone power transformers
ith l d t hwith on-load tap-changer
• Features• FeaturesTap Position Detection
Communications
Installation in the motor drive MD II
Adaptation to existing installationsFour Programmable Inputs
Visualization via TAPCON®trol System
August 2009 Page 17
motor drive MD II
(included)
TAPCON® 250 Circulating Current Analog Paralleling
Parallel Controlacc. ANSI C57.12.10 scheme
Within the TAPCON®- family
Parallel Assistant ModulesParallel Assistant Modules
TAPCON® 250 -- TAPCON® 250 (or other TAPCON® s)(or other TAPCON® s)
Together with existing installationsParallel Balancing ModulesParallel Balancing Modules
TAPCON® 250 -- e.g. Beckwith M 2001
August 2009 Page 18
ANSI-schemeCAN-bus
TAPCON® 250 Circulating Current Analog ParallelingRequirements•Similar (practically identical Z%
•Solid high-side bus (no separate sources)
•Comparable step voltages and ranges (but some differences may be tolerable)tolerable)
•Provisions for LDC
•Same winding ratios
•Same MVA rating (ratio correcting CTs may be used)
August 2009 Page 19
TAPCON® 250 Circulating Current Analog Paralleling
AC Current Relay
OLTC ControlParalleling OLTC Control
TAPCON® 250
gAssistant
XPA I(incl. AC Relay)
August 2009 Page 20
CAN bus
TAPCON® 250 Circulating Current Analog Paralleling
Paralleling Assistant XPA-I
• Easy adaption for paralleling via• CAN bus to Digital Voltage• Controllers of the TAPCON®
family
• Simplified installations less wiring time and reduced failures
• Cost savings CAN bus
Analog
August 2009 Page 21
TAPCON® 250 TAPCON® 250 Circulating CurrentAnalog Paralleling
August 2009 Page 22
TAPCON® 250 Digital Paralleling
Parallel Control with CAN bus
TAPCON® 250
Digital Paralleling with TAPCON® 250
includes:
• easy parallel operationof up to 16 transformers
• Group Paralleling
TAPCON® 250
• several parallelingmethods
Circulating CurrentMaster - Follower
TAPCON® 250
aste o o e
• simplifiedcommissioning
• remarkable saving
TAPCON® 230
August 2009 Page 23
gof costs
TAPCON® 240 / 260
TAPCON® 250 Digital Paralleling
AC Current Relay
OLTC VoltageControl
Parallel Balancing
ModuleModule
August 2009 Page 24
TAPCON® 250 Digital Paralleling
Transf. 1
LINE
AC AC
Transf. 2
7
1ACT
5
PBM3
52-2b
52-2a
24a
52-1b 24b
52-1aAC
7 5
AC
1PBM
3ACT
9
8
34
90 Relayw Plate
PT1 5
6
24b 34
522b521b 24b8
96
90 Relayw Plate
5PT
1
10
22 4
64
24a
10
2
4
4
6
2
52-1 52-2CAN Bus
August 2009 Page 25
LOAD24
LOAD
TAPCON® 250 Circulating REACTIVE CurrentDigital Paralleling Versus Analog Scheme
Analog Limitations•CT circuitry wired between transformers
Digital Comparison•No CT circuitry between transformerstransformers
•Similar (practically identical) Z%
•Solid high-side bus
transformers
•Z% can be different
•Separated high-side bus okaySolid high side bus
•Comparable step voltages and ranges
Separated high side bus okay
•Different step voltages and tap ranges are okay
•Provisions for LDC
•Same winding ratios
S (
•LDC doesn’t require adjustment
•Different winding ratios okay
ff (C•Same MVA rating (ratio correcting CTs may be used)
•No visual indication of correct
•Different MVA ratings okay (CT is sized according to rating)
•Controller guided commissioning
August 2009 Page 26
settingsg g
TAPCON® 250 Digital Paralleling
TAPCON® 250
Transf. 1TAPCON
LINE
TAPCON
Transf. 2Transf. 1
LINE
Transf. 2
... the Difference in Paralleling !
+12VDCPT
21
5
TAPCON90 Relay6
43P24a
CAN-Bus
21
5
PT
TAPCON90 Relay
6
+12VDC
9
8
7
1
34
90 Relayw Plate
ACT
PT1 5
6
5
PBM3
24b 34
52-2b
52-2a
24a
52-1b 24b
52-1aAC
8
9
7
6
5
AC
1PBM
3ACT
90 Relayw Plate
5PT
1
52-1
Tap PositionInput Option
52-2
Tap PositionInput Option
10
2
52-1
2 4
64
24
24a
10
2
4
52-2
4
6
2
Only onecontroller needsindication for two
LOAD24
LOADLOAD24
LOAD
Traditional Analogue Scheme TAPCON® 250 with CAN bus
paralleledtransformers
August 2009 Page 27
TAPCON® 250 Digital Master-Follower Scheme
Overview•Older analog methods required relay logic
•Master-Follower actually the most common method used in rest of world
•Only the master regulates
All t ll d iti iti k l d•All controllers need positive position knowledge
•Perfect and actually preferred for applications where each transformer naturally carries the load evenly on the same tap position.
•Same Z%
•Same Vector Groups
•Same # of Taps
•Same step voltage
August 2009 Page 28
TAPCON® 250 Digital Paralleling
fewer components .fewer problems..less work...less work...
```more benefits .more reliability ..more cost savings ...
... TAPCON® 250
August 2009 Page 29
www.tapcon250.com
March 2007 Page 30
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