Proudly Madein the USA

NOW AVAILABLENOW AVAILABLE

TCI’s New KDR Optimized Drive Reactors Deliver Superior DesignAnd PerformanceCustomers demand quality and performance at a price that translates to “optimum value”. TCI,the drive industry’s leading provider of value added technology, is proud to introduce the KDRSeries of Optimized Drive Reactors. This is the latest addition to a family of reactor products witha reputation for increasing the value and improving the system performance of power inverters.This KDR product has been designed to provide the samerugged reliability you’ve come to expect from TCI productsin the smallest, lightest product package currently availablein the market. Product models, covering the completerange of impedance needs, are available for either the lineor load side of a PWM drive. Providing the optimumselection for your application, TCI’s KDR Optimized DriveReactors are your “Superior Design and Performance”solution.KDR Optimized Drive Reactors are warranted againstmanufacturer’s defect for the life of the drive with whichthey are installed.

Performance GuaranteeProperly sized for the application, a KDR reactor isguaranteed to eliminate any AC drive overvoltage trippingproblems. If a KDR reactor is installed and the trippingproblem remains, TCI will take back the reactor and payshipping both ways. (Offer valid for 60 days from date of shipment.)

Drawings/SpecificationsAutocad® compatible*.dxf drawings and Acrobat Reader® compatible*.pdf drawings of all KDROptimized Drive Reactors are available at www.transcoil.com or by contactingTCI at (800) 824-8282.

KDR At The Input Of The DriveKDR Optimized Drive Reactors applied to the line side of a PWM drive will greatly improve theoverall performance of the drive. The additional circuit inductance will reduce AC voltagewaveform line notching, DC bus overvoltage trips, inverter overvoltage, poor total power factor,and cross-talk.

Typical Problems, Superior Solutions With KDR Reactors:KDR On The Input to DC Drives• Voltage line notching, also known as commutation notching, originates in SCR phase-controlledrectifiers. As the transfer of current takes place, there is a brief period of time where two SCRsconnect during the switching process, causing a short between two of the AC lines. Additionalimpedance will reduce the depth and rounds the edges of the notches. This will eliminate drivecross-talk, interference, and equipment damage.KDR On The Input to AC Drives• Transient voltages, commonly caused by capacitor switching, or the switching of large loadblocks, can result in an overvoltage condition of the DC bus. This overvoltage condition willcause the drive to shut down in order to protect its components. These transients can sometimesbe very severe and too quick for the drive to shut down. The addition of a KDR Optimized DriveReactor can prevent drive shutdown and even protect components from possible damage.

UTILIT

Y

KDR DRIVE MOTORKDR

2

Use KDR Low “Z” Units For:These units can be used in any applications wheretraditionally either a 1.5% or 3% reactor would beapplied.Reduction of nuisance tripping caused by:• Transient voltages caused by capacitor switching• Line notching• DC bus overvoltage tripping• Inverter overcurrent and overvoltageAdditional benefits include:• Lowering injected percentage of harmonic current• Improving true power factor• Reducing cross-talk between drives

Use KDR High “Z” Units For:These units can be used in any rugged applicationwhere traditionally a 5% reactor would be applied.KDR High “Z” offers the same superior benefits asLow “Z” plus additional benefits which include:• Helping prevent drive component damage• Providing maximum harmonic mitigation without

adding capacitance• Further improving true power factor• Adding impedance to drives with or without DC

link chokes/reactors when more impedance is desireddue to a relatively stiff source.

KDR SelectionTCI has compiled tables for each drive manufacturer by voltage and HP with the proper KDR selection notedfor Low “Z” and High “Z” based on the manufacturer’s nameplate input current rating. These charts also includeconvenient crossover tables between the popular TCI KLR series of reactors as well as crossovers for many otherbrands of reactors.

• Input line distortion is caused by the non-linear characteristics of drives. The addition of a KDR OptimizedDrive Reactor will limit the inrush current to the rectifier, rounding the waveform, reducing the peak currents andlowering the harmonic current distortion. High peak currents may cause distortion of the voltage waveform. KDR’sreduction of those peak currents also reduces total harmonic voltage distortion at the point of common coupling.• Drive input currents rich in harmonics result in a decrease in total input power factor to the drive. The additionof a KDR Optimized Drive Reactor will reduce the RMS current through the reduction in harmonic content,thereby improving the total power factor.• Input voltage unbalance may prevent the drive from performing due to subsequent overcurrent conditionswhich cause the drive to cease operating. Tests have proven that the addition of a KDR Drive Reactor to the inputof every drive will help balance the drive input line currents.

Two Rating Levels, Two Choices, One “Optimized” Answer...the new KDRChoose TCI’s new KDR Optimized Drive Reactors in two ratings versions, Low “Z” (low impedance) and High“Z” (high impedance). Input impedance can significantly improve drive performance; however, it should benoted that as impedance increases, the DC voltage on the VFD’s capacitors actually decreases. This decrease canbecome significant enough to cause either an undervoltage trip or excessive motor current in the VFD. The KDROptimized Drive Reactors have been designed to provide the best protection for both your drive and yourapplication.

800V

750V

700V

650V

600V10ms 15ms

700V

650V

600V10ms 15ms 20ms 25ms 30ms

DC BusVoltage

WITHOUT KDR

WITH KDR

85ms

0A

-500A75ms 80ms 85ms 90ms 95ms 100ms

500A

0A

-500A75ms 80ms

LineCurrent

WITHOUT KDR

WITH KDR

3

Watts LossThe watts loss shown above are based on the effects of increased losses in both the core steel laminations and wiredue to the presence of harmonic currents. Consideration of eddy currents in the watts loss calculation is important.The watt losses in the reactor core caused by eddy currents are proportional to the harmonic frequency squared.The harmonic current levels were derived from a typical 6 pulse converter as follows:

6

PARTNUMBER

NECMOTOR

HP

NECMOTOR

CURRENT

WATTSLOSS

MINIMUMCAB SIZE

STANDARDTERMS5

75

/ 60

0 V

OLT

S H

IGH

-Z

HEIGHT WIDTH DEPTH

WEIGHTDIMENSIONS

KDRA55HKDRA52HKDRA50HKDRA51HKDRA43HKDRA44HKDRA45HKDRB42HKDRB43HKDRB44HKDRD41HKDRC43HKDRE42HKDRF44HKDRF45HKDRH43HKDRH42HKDRI41HKDRG44HKDRG45HKDRJ41HKDRL46HKDRL47HKDRL48HKDRL49HKDRS47HKDRS46HKDRS49HKDRS48HKDRX44HKDRX41HKDRX42HKDRX43HKDRY41HKDRY42H

0.50.75

11.5235

7.51015202530405060751001251502002503003504004505006007008009001000110012501500

0.91.31.72.42.73.96.1911172227324152627799125144192242289336382412472576672768864960105612001440

913172624354861717310610714017216620525126838140646647249053960352166111941393159217911990218924882985

C1C1C1C1C1C1C1C2C2C2C2C2C2C3C3C4C4C4C4C4C5C5C5C5C5C5C5C5C5C7C7C7C7C7C7

TBTBTBTBTBTBTBTBTBTBTBTBTBTBTBTBTBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCB

4444444555

5.755.755.75

77999999

11.3811.3811.3811.3811.3811.3811.3811.3818.518.518.518.52020

4.184.184.184.184.184.184.18

666

7.27.27.2991111111111111515151515151515

18.2518.2518.2518.25

2121

3.753.753.753.753.753.753.75

444

4.255566667

7.5891111111113131313

12.512.512.512.51616

44444448881215163030454550656570110110110110165165175200280290375450475575

ENCLOSEDPART NUMBER

KDRA55HC1KDRA52HC1KDRA50HC1KDRA51HC1KDRA43HC1KDRA44HC1KDRA45HC1KDRB42HC2KDRB43HC2KDRB44HC2KDRD41HC2KDRC43HC2KDRE42HC2KDRF44HC3KDRF45HC3KDRH43HC4KDRH42HC4KDRI41HC4KDRG44HC4KDRG45HC4KDRJ41HC5KDRL46HC5KDRL47HC5KDRL48HC5KDRL49HC5KDRS47HC5KDRS46HC5KDRS49HC5KDRS48HC5KDRX44HC7KDRX41HC7KDRX42HC7KDRX43HC7KDRY41HC7KDRY42HC7

PARTNUMBER

NECMOTOR

HP

NECMOTOR

CURRENT

WATTSLOSS

MINIMUMCAB SIZE

STANDARDTERMS5

75

/ 60

0 V

OLT

S LO

W-Z

HEIGHT WIDTH DEPTH

WEIGHTDIMENSIONS

KDRA55LKDRA56LKDRA50LKDRA51LKDRA46LKDRA52LKDRA47LKDRA48LKDRA49LKDRB45LKDRB44LKDRB43LKDRD42LKDRC43LKDRC44LKDRF46LKDRF47LKDRF45LKDRH43LKDRH44LKDRI42LKDRG47LKDRG45LKDRJ45LKDRJ43LKDRJ44LKDRL45LKDRL42LKDRL43LKDRL44LKDRX41LKDRX42LKDRX43LKDRX44LKDRY41L

0.50.75

11.5235

7.51015202530405060751001251502002503003504004505006007008009001000110012501500

0.91.31.72.42.73.96.1911172227324152627799125144192242289336382412472576672768864960105612001440

69.3121922

23.334.742.943.866.271.276.710610912318119419426125334239437447446347358771683695510751194131314931791

C1C1C1C1C1C1C1C1C1C1C1C1C2C2C2C3C3C4C4C4C4C4C4C5C5C5C5C5C5C5C7C7C7C7C7

TBTBTBTBTBTBTBTBTBTBTBTBTBTBTBTBTBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCBCB

444444444555

5.755.755.75

77799999999

11.3811.3811.3811.3818.518.518.518.520

4.184.184.184.184.184.184.184.184.18

666

7.27.27.2999111111111111111115151515

18.2518.2518.2518.25

21

3.753.753.753.753.753.753.753.753.75

444

4.25556667778899911111111

12.512.512.512.516

KDRA55LC1KDRA56LC1KDRA50LC1KDRA51LC1KDRA46LC1KDRA52LC1KDRA47LC1KDRA48LC1KDRA49LC1KDRB45LC1KDRB44LC1KDRB43LC1KDRD42LC2KDRC43LC2KDRC44LC2KDRF46LC3KDRF47LC3KDRF45LC4KDRH43LC4KDRH44LC4KDRI42LC4KDRG47LC4KDRG45LC4KDRJ45LC5KDRJ43LC5KDRJ44LC5KDRL45LC5KDRL42LC5KDRL43LC5KDRL44LC5KDRX41LC7KDRX42LC7KDRX43LC7KDRX44LC7KDRY41LC7

ENCLOSEDPART NUMBER

4444444458881215153030304545506565707070110150270275280290315325465

Harmonic CurrentDistortion

5th 17%7th 11%11th 4.5%

ENCLOSURES

KDR

Watt loss will vary due to fundamental frequency, carrier frequency and other system characteristics. KDR Drive Reactors complywith the thermal and altitude standards set forth by NEMA’s Standard ST20-1992.

PARTNUMBER

NECMOTOR

HP

NECMOTOR

CURRENT

MINIMUMCAB SIZE

STANDARDTERMS

575 V

OLT

S O

UTP

UT

HEIGHT WIDTH DEPTH

WEIGHTDIMENSIONS

KDRA31PKDRA35PKDRA33PKDRA34PKDRA36PKDRD31PKDRD32PKDRD35PKDRD33PKDRD34PKDRC31PKDRF31PKDRF32PKDRF33PKDRH31PKDRI31PKDRI32PKDRG31PKDRJ31PKDRJ32PKDRL31PKDRL35PKDRL32P

235

7.5101520253040506075100125150200250300350400450500

2.73.96.1911172227324152627799125144192242289336382412472

C1C1C1C1C1C2C2C2C2C2C2C3C3C4C4C4C4C4C5C5C5C5C5

TBTBTBTBTBTBTBTBTBTBTBTBTBCBCBCBCBCBCBCBCBCBCB

44444

5.755.755.755.755.755.75

777999999

11.3811.3811.38

4.184.184.184.184.187.27.27.27.27.27.2999111111111111

14.514.514.5

3.753.753.753.753.754.254.254.254.254.25

5666777899

9.319.319.31

44455101010121215252530405045607070858595

KDRA31PC1KDRA35PC1KDRA33PC1KDRA34PC1KDRA36PC1KDRD31PC2KDRD32PC2KDRD35PC2KDRD33PC2KDRD34PC2KDRC31PC2KDRF31PC3KDRF32PC3KDRF33PC4KDRH31PC4KDRI31PC4KDRI32PC4KDRG31PC4KDRJ31PC5KDRJ32PC5KDRL31PC5KDRL35PC5KDRL32PC5

NEMA 1ENCLOSED

PART NUMBER

KDR Optimized Drive Reactors may be used at the output of AC-PWM variable frequency drives where the motor lead lengthsare less than 100 feet. The addition of a KDR unit to the output of a drive will dampen overshoot peak voltage, reduce motorheating and audible noise, helping to extend the life of the motor. The units will also help prevent inverter instantaneousovercurrent trips because they provide needed inductance when the load on an inverter has an abnormally high capacitance.The 100 foot guideline has been recommended because as motor leads become longer, the resonant frequency is lowered, andthe magnitude and duration of the voltage spikes increases. The addition of a reactor on lead lengths exceeding 100 feet maybe ineffective and potentially detrimental to system performance.For lead lengths exceeding 100 feet, TCI offers KLC/KLCUL Output Filters and KMG MotorGuard High Performance OutputFilters for long lead motor protection needs.

10

UL TYPE 1 ENCLOSURES

11

UL TYPE 3R ENCLOSURES

OPEN ULPART

NUMBER

NECMOTOR

HP

OPENUL

WEIGHT

UL TYPE 1Enclosed Part

Number HEIGHT x WIDTH x DEPTH

DIMENSIONS

KDRULA31PKDRULA35PKDRULA33PKDRULA34PKDRULA36PKDRULD31PKDRULD32PKDRULD35PKDRULD33PKDRULD34PKDRULC31PKDRULF31PKDRULF32PKDRULF33PKDRULH31PKDRULI31PKDRULI32PKDRULG31PKDRULJ31PKDRULJ32PKDRULL31PKDRULL35PKDRULL32P

235

7.5101520253040506075100125150200250300350400450500

44445101010121215252533435651697579104109109

KDRULA31PE01KDRULA35PE01KDRULA33PE01KDRULA34PE01KDRULA36PE01KDRULD31PE01KDRULD32PE01KDRULD35PE01KDRULD33PE01KDRULD34PE01KDRULC31PE01KDRULF31PE01KDRULF32PE01KDRULF33PE01KDRULH31PE01KDRULI31PE01KDRULI32PE01KDRULG31PE01KDRULJ31PE01KDRULJ32PE01KDRULL31PE01KDRULL35PE01KDRULL32PE01

12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 12.25 X 12.50 X 6.75 19.13 X 15.43 X 15.43 19.13 X 15.43 X 15.43 19.13 X 15.43 X 15.43 19.13 X 15.43 X 15.43 19.13 X 15.43 X 15.43 22.12 X 20.43 X 24.37 22.12 X 20.43 X 24.37 22.12 X 20.43 X 24.37 22.12 X 20.43 X 24.37 22.12 X 20.43 X 24.37 22.12 X 20.43 X 24.37 22.12 X 20.43 X 24.37

ULTYPE 1WEIGHT

14.5014.5014.5015.5015.5020.5020.5020.5022.5022.5025.50

6767677786111131136136151151161

UL TYPE 3REnclosed Part

NumberKDRULA31PE3RKDRULA35PE3RKDRULA33PE3RKDRULA34PE3RKDRULA36PE3RKDRULD31PE3RKDRULD32PE3RKDRULD35PE3RKDRULD33PE3RKDRULD34PE3RKDRULC31PE3RKDRULF31PE3RKDRULF32PE3RKDRULF33PE3RKDRULH31PE3RKDRULI31PE3RKDRULI32PE3RKDRULG31PE3RKDRULJ31PE3RKDRULJ32PE3RKDRULL31PE3RKDRULL35PE3RKDRULL32PE3R

11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 11.50 X 10.00 X 12.00 19.18 X 15.62 X 19.50 19.18 X 15.62 X 19.50 19.18 X 15.62 X 19.50 19.18 X 15.62 X 19.50 19.18 X 15.62 X 19.50 22.15 X 20.62 X 28.50 22.15 X 20.62 X 28.50 22.15 X 20.62 X 28.50 22.15 X 20.62 X 28.50 22.15 X 20.62 X 28.50 22.15 X 20.62 X 28.50 22.15 X 20.62 X 28.50

HEIGHT x WIDTH x DEPTH

DIMENSIONS UL TYPE3R

WEIGHT

19191920202525252727306363677795120140145150165165165

575 V

OLT

S O

UTP

UT

7878 North 86th Street, Milwaukee, WI 53224PHONE 1-800-824-8282 FAX (414) 357-4484

WEB www.transcoil.com

• Universal mounting Footprint• 3 Phase, 600V Class• UL and CUL Recognized; UL or CUL Listing Available• CE Marked• High Performance• Compact Design• Available in Low Impedance (Low Z) and High

Impedance (High Z)• Available in 240, 480 and 575 VAC• Patented High Quality Bobbin Construction

(Units 85 amps and below)• Distributed Gap Technology• NEMA 1 enclosures available• Input and Output Specified• 40 Degrees C Ambient Temperature• Minimum 95%L at 110% Load• Minimum 80%L at 150% Load• Tolerate 200% rated I for a minimum of 3 minutes

REV.04-01-05

• Universal mounting Footprint• 3 Phase, 600V Class• UL and CUL Recognized; UL or CUL Listing Available• CE Marked• High Performance• Compact Design• Available in Low Impedance (Low Z) and High

Impedance (High Z)• Available in 240, 480 and 575 VAC• Patented High Quality Bobbin Construction

(Units 85 amps and below)• Distributed Gap Technology• NEMA 1 enclosures available• Input and Output Specified• 40 Degrees C Ambient Temperature• Minimum 95%L at 110% Load• Minimum 80%L at 150% Load• Tolerate 200% rated I for a minimum of 3 minutes