THYRISTOR DC DRIVES AND EXITERS TEP SERIES

Thyristor DC drives TEP series are intended for velocity, motor voltage (EMF) and other motion coordinates that are determined by automated object and technological process requirements adjustment.

TEP series contains DC motors thyristor exciters and thyristor exciters for large-scale synchronous motors with reactive power regulation.

Area of electric drives use: metallurgy, coal-mining, machinery, agricultural industry, paper making and other industry branches.

Conditional shorthand structure:

TEP–X1X1X1X1/X2X2X2–X3X4X5X6–X7X7X7–X8X8X8X8X9X9X10X11–X12X12X13X13X13X14

TEP – thyristor DC drive;

X1 – rated output current, A;

X2 – rated output voltage, V;

X3 – power supply commutation fulfillment:

0 – without reactor, without circuit breaker (block fulfillment),

1 – transformer,

2 – reactor,

3 – without reactor with circuit breaker;

4 – with reactor without circuit breaker;

X4 – operation modes fulfillment:

1 – irreversible;

2 – reversible with excitation current reverse,

3 – reversible with armature current reverse;

X5 – linear contactor presence fulfillment:

1 – with contactor,

2 – without contactor;

3 – reversible, with armature current reverse;

X6 – remote control panel existence fulfillment:

1 – with consol (delivers separately for drive operation),

2 – without consol;

X7 – main circuit function fulfillment:

J – for DC motor armature circuit supplying without integrated exciter,

I – power source,

VDP – DC motor exciter,

VGP – DC generator exciter,

VSD – synchronous motor exciter,

VSG – synchronous generator exciter;

X8 – existence fulfillment: motor excitation winding power supply devices (V), dynamic braking devices (D), electromagnetic brake power supply devices (M), speed-voltage generator excitation winding power supply devices (T).

For example, V, D, M, T: V – with motor excitation winding power supply device, D – with dynamic braking device, M – with electromagnetic brake power supply device, T – with speed-voltage generator excitation winding power supply device.

X9 – control system modification:

1 – motor current, voltage (EMF, velocity) single-zone regulation system,

2 – motor current, voltage (EMF, velocity) two-zone regulation system;

3 – motor roller position, current, voltage (EMF, velocity) regulation system,

4 – motor power, current, voltage (EMF, velocity) regulation system,

5 – wiring and unwiring mechanisms regulation system,

6 – 9 9 – other regulation and adaptation systems, supplied by customers request;

X10 – control system fulfillment:

A – analog,

P – digital, processor;

X11 – cooling type:

1 – natural air cooling;

2 – forced air cooling;

X12 – object oriented fulfillment modification:

0 –base,

1 – 99 – object-oriented;

X13 – climate fulfillment according to the GOST 15150;

X14 – placement category according to the GOST 15150.

Drives accept operation in prolonged and repeatedly-short-time modes with loads that are given in Table 1  

                                                                                                                                                Table 1

Mode

Load in per cent from rated current

Load duration, sec

1

100

Long-term

2

150

120

3

175

60

4

200

15

6

225

10

 

At 2-6 operation regimes mean square current value during cycle must not to overpass nominal value average time for more then 10 minutes. 

Minimum electric drive durability is 20 years.

Electric drive protection system provides:

-   protection against instantaneous current of limit value established for the given electric drive exceeding;

-   protection against thyristor emergency overvoltage;

-   protection against disappearing and unallowable reduction of drive excitation current;

-   protection against disappearing of power circuits voltage supplying and house voltage supplying;

-   protection against drive overload that exceed given value during definite time (see Tabl.1).

 

Electric drive signaling system provides:

-   electric drive work readiness signaling;

-   emergency converter disconnection signaling;

-   power circuit voltage and house voltage presence signaling.

 

Drives have output signal channels to object automation external system.

Additional nodes can be mounted: excitation winding power supply; electromagnetic brake power supply; dynamic braking device; speed-voltage generator excitation winding power supply.

Motor excitation winding integrated thyristor power supplies provide output voltage from 40 to 230V at load current to 16A (TAP50 – TAP200 fulfillment); 25A (TAP320 – TAP500 fulfillment); 50A (TAP800 – TAP1000 fulfillment).

For TAP1600, TAP2500 fulfillments motor exciter is delivered in the form of separately standing construct.

Construction and action principles

Drive’s power part is built on the base of three-phase bridge rectifier scheme. Reversible drives valve part is fulfilled on the base of parallel-opposition closing scheme and accommodated with reverse groups separate operation system.

Drive content includes: rectifier (rectified device with impulse-phase operational system); mains transformer or network reactor; line contactor; protection and signaling systems include faults indication; motor excitation winding power supply; automatic regulation and diagnostic systems.

Drives are fulfilled constructively in the form of one-side maintaining floor mounted framework cabinet. Placing cabinets by back side to each other and to the wall is acceptable. Protection against circuit’s over-voltages and during unloaded transformer disconnection over-voltages on AC supply input is set.

Depending of power drive cabinets have forced or natural air cooling.

 

1. Thyristor drives for armature circuits supplying

Drives are supplying from field buses 0,22; 0,4; 0,66; 6,3; 10 kV (frequency 50Hz, 60Hz) through matching transformers or current-limiting reactors.

Drive main dimensional parameters are given in Table2.     

                                                    Table2

Rated output voltage, V

Rated output current, А

Rated output power, kW

Dimensions LxBxH, mm

Weight, kg

Irreversible

Reversible

230

10

2,3

250x170x310

10

12

230

25

5,75

600x600x1870

230

260

230

50

11,5

600x600x1870

245

270

230

100

23

600x600x1870

285

315

230

200

46

600x600x1870

115

145

230

320

73,6

600x610x1940

145

175

230

500

115

600x610x1940

170

200

460

10

4,6

250x170x310

10

12

460

25

11,5

600x600x1870

200

230

460

50

23

600x600x1870

230

260

460

100

46

600x600x1870

250

280

460

200

92

600x600x1870

172

205

460

320

147,2

600x610x1940

220

250

460

500

230

600x610x1940

245

275

460

630

290

600x610x1940

245

275

460

800

368

1400x600x2155

365

405

460

1000

460

1400x600x2155

390

430

460

1600

736

1000x800x1950

475

505

660

2500

1650

1135x650x2260

500

530

825

2500

2062,5

1135x650x2260

500

530

825

3200

2640

1200x800x2200

600

700

825

4000

3300

1200x800x2200

670

770

825

5000

4125

1200x800x2200

770

870

 

Drives dimensions and weights for currents from 200A to 5000A that are given in Table2 are without power transformer and for currents from 1000A to 5000A – without shifting reactor.

 

2. DC motors thyristor exciters

Thyristor exciters are intended for DC motors excitation winding supplying.

Thyristor exciters contain includes: controlled rectifier – DC motor excitation winding supplying device (rectifier unit with impulse-phase operation system); income reactor (or transformer); field suppression component, measuring mechanisms for output current and voltage control; protection and signalization systems including faults indication, automatic regulation and diagnostic systems.

DC motor exciters parameters are given in Table3.

Table 3

Rated output current, А

Rectifier rated output voltage (on loads), V

Rated output power, kW

Dimensions LxBxH, mm

Electric drive weight, kg

25

220

5,75

600х600х1870

232

50

220

11,5

600х600х1870

248

100

220

23

600x600x1870

290

200

220

46

600x600x1870

125

320

220

73,6

600x610x1940

155

500

220

115

600x610x1940

190

630

220

145

600x610x1940

190

800

220

184

1400x600x2155

320

25

440

11,5

600х600х1870

202

50

440

23

600х600х1870

233

100

440

46

600x600x1870

255

200

440

92

600x600x1870

182

320

440

147,2

600x610x1940

230

500

440

230

600х610х1940

265

630

440

290

600х610х1940

265

800

440

368

1400х600х2155

340

1000

440

460

1400х600х2155

410

 

Drives dimensions and weights for currents from 200A to 1000A that are given in Table3 are without power transformer.

 

3. DC thyristor power sources

Thyristor power sources content includes: controlled rectifier, output current and voltage control devices; protection and signalization systems including faults indication, automatic regulation and diagnose systems.

4. Block fulfilled thyristor drives.

Producing plant establishes drives in block fulfillment. At the same time its content doesn’t have: income mains transformer (or reactor), income power breaker, line contactor. These drive elements can be supplied optionally and placed on the customer’s object.

Drive is executed constructively in the form of block.

 

 

Drives TEP series functional schemes are given on the Picture1.

 

      а)

 

   b)

 

CT – current transducer

Q1, Q2, Q3 – breakers

TB – thyristor bridge

T1 – house transformer

MPOS – microprocessor operational system

CP – control panel

RS – bypass

MEW – motor excitation winding

EMB – electromagnetic brake

T – mains transformer

L – protection reactor

VT – voltage transducer

Picture1. Electric drive TAP series functional schemes

a) irreversible, b) reversible.

FaLang translation system by Faboba

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Украина 69032, г. Запорожье, Южное шоссе, 9
 
PRIVAT JOINT STOCK COMPANY «ZAPOROZHYE PLANT OF ELECTRICAL APPARATUS» (PJSC «ZPEA»)"
Yuzhnoye shosse str.,9, Ukraine, 69032, Zaporozhye

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