Magrini - Instrument Transformers for SM6

Instrument transformers

SM6 Cubicles

Feasibility range and referenced types

Catalogue UAL pag. 1/45

INDEX

FIRST PART

CURRENT TRANSFORMER RECOMMENDATIONS FOR THE USE OF TABLES AND TECHNICALS NOTES

Page 5,6 an and 7

PANEL TYPE CRM

REFERENCED TYPES

STANDARD TYPES

ARJP1/N2 F

Page 8

ARJP2/N2 F

Page 12

ARJP1/N1 F and ARJP1/N2 F

Page 9 and 10


Page 13 and 14

PANELS TYPE 1250A DM1-A, DM1-D, DM1-W, DM1-Z, GBC-A, GBC-B

ARJP2/N2 F

Page 12

ARJP3/N2 F

Page 16


Page 9 and 10


Page 13 and 14

ARJP3 JP3/N1 F and ARJP3 JP3/N2 F and and ARJP3 JP3/N3 F

Page 17

REFERENCED TYPES

ARM1/N1 F

Page 19

STANDARD TYPES

ARM1/N1 F and ARM1/N2 F

Page 20

REFERENCED TYPES

STANDARD TYPES

PANEL TYPE QMC

pag. 2/45

PANEL TYPE IMC

REFERENCED TYPES

ARM2/N2 F

Page 22

STANDARD TYPES


Page 20


Page 23

PANELS TYPE DM1-A, DM1-D, DM1-W, DM2, GBC-A, GBC-B

REFERENCED TYPES

ARM3/N2 F

Page 25

STANDARD TYPES


Page 26

NOTA:

N1, N2 and N3 MEANS THE NUMBER OF SECONDARIES F MEANS THAT THERE IS NOT BASE PLATE

pag. 3/45

SECOND PART

VOLTAGE TRANSFORMERS TYPE PHASE-EARTH RECOMMENDATIONS FOR THE USE OF TABLES AND TECHNICALS NOTES

Page from 28 to 32

PANELS TYPE CM, DM1-A, DM1-D, DM2 REFERENCED TYPES

VRQ2n/S1 and VRQ2n/S2

Page 33

STANDARD TYPES

VRQ2n/S1, VRQ2n/S2 and VRQ2n/S3

Page 34


Page 36

PANEL TYPE CRM STANDARD TYPES

PANELS TYPE GBC-A, GBC-B REFERENCED TYPES

STANDARD TYPES

VRQ2n/S1 and VRQ2n/S2

Page 33

VRM3n/S2

Page 38


Page 34

VRM3n/S1 and VRM3n/S2

Page 39

VOLTAGE TRANSFORMERS TYPE PHASE-PHASE RECOMMENDATIONS FOR THE USE OF TABLES AND TECHNICALS NOTES

Page from 28 to 32

PANEL TYPE CRM STANDARD TYPES

VRC1/S1 F and VRC1/S2 F

Page 41

PANEL TYPE DM2, CM2, GBC-A, GBC-B REFERENCED TYPES

VRC2/S1 F

Page 43

STANDARD TYPES

VRC2/S1 F and VRC2/S2 F

Page 44

NOTA:

S1, S2 and S3 MEANS THE NUMBER OF SECONDARIES

pag. 4/45

FIRST PART CURRENT TRANSFORMERS

PREFERABLY USE the equipment selected and marked as REFERENCED

RECOMM ENDATI ONS F OR THE USE OF TH E F EASI BI LI TY AND COM PUTATI ON SUPPORTS

_______________ ¶

CHECK NEEDS AND NECESSARY INFORMATION ACCURATELY

·

USE EQUIPMENT MARKED AS REFERENCE

¸

CHECK READLY AVAILABLE FEASIBILITY SECTIONS DIRECTLY TO APPLY KEYS TO FEASI BI LI TY TABLES CORRECTL Y, PL EA SE SEE ON PAGE 6

¹

CONSULT IF FEASIBILITY RANGE IS NOT AVAILABLE OR FOR OTHERS CHARACTERISTICS

º

USE CONSULTATION AND ORDER CHARTS

pag. 5/45

KEYS TO THE VARIOUS TABLES TO DEFINE FEASIBILITY

1)

Define Ipn rated primary current Use primary gauges defined by standard (IEC): 10, 12,5, 20, 25, 30, 40, 50, 60 and 75 A and their decimal multiples.

2)

Define Ith rated short-time thermal current for 1 second Short-circuit current usually lasts 1 second. Should this value be different (equal to a lenght "t"), calculate the following:

Ith (for 1 sec.) = Ith x √t example:

3)

25 kA for 3 sec. >> 25 x √3 = 43,3 kA for 1 sec.

Calculate coefficient "K" The above reperesents the key to the various tables

Ith for 1 sec.

K= example:

4)

Ipn

Ipn = 100 A , Ith = 12,5 kA 1 sec. >> K = 12500 / 100 = 125

Finding position on the table Locate column "K" and stop on the line corresponding to a value higher than K. example:

5)

K calculate value = 125 >> ligne K = 150

Check feasibility A possible current transformer will feature the performances shown in the columns identified by boxes : For perotection secondary is true, only for choosing in the catalogue , the following formule:

VA x FL = constant example: 10VA 5P10 ( VA x FL= 10 x 10= 100 ) >> 5VA 5P20 ( VA x FL= 5 x 20= 100 )

Current transformer can now be ordered on our special order forms

order form contact us for other available features using the consultation forms

consultation form pag. 6/45

TECHNI CAL NOTES

Di agr ams of th e ter mi nals mar ki ngs accor ding to I EC standard. Current transformer featuring double ratio through primary coulping. types ARM 1, ARM 2, ARM 3 Burden values are the same for both ratios. P1

C1

C2

P2

SERIAL PRIMARY COUPLING

LOW RATIO

P1

C1

C2

P2

PARALLEL PRIMARY COUPLING

HIGH RATIO

Current transformer featuring double ratio through connection to secondary. types ARJP1, ARJP2, ARJP3 Burden values are different for each of the two ratios. P1

S1

S2

P2

P1

S3

1S1

CT with ONE SECONDARY WINDING S1-S2 LOW RATIO S1-S3 HIGH RATIO

P2

1S2

1S3

2S1

2S2

2S3

CT with TWO SECONDARY WINDINGS 1S1-1S2 2S1- 2S2 1S1-1S3 2S1- 2S3

LOW RATIO HIGH RATIO

WARNI NG ! The secondary open winding of a CT is dangereus! The unused secondary windings fo a CT must be short-circuited. pag. 7/45

REFERENCED CURRENT TRANSFORMERS Type ARJP1/N2 F Panels type SM6 ( CRM ) Dimensions

Drawing n° H 103441

Characteristics

Standard reference IEC 185 and NFC 42502 Rated highest voltage : 24 kV Rated continous thermal current 1,2 x In Frequency 50 and 60 Hz

A RJ P1 /N 2 F reference

Short-time current ratings ratio

number

secondaries 1st

2nd protection

I th

t

I dyn

measure

kA

sec.

kA

cl 0,5

peak

FS<10

r.m.s.

Second ary for mea su re 5A and secon dary for prot ection 5A 3735319

50/5-5

4

1

10

7,5 VA

5 VA 5P10

3735320

100/5-5

10

1

25

7,5 VA

5 VA 5P10

3735321

150/5-5

10

1

25

7,5 VA

5 VA 5P10

3735322

200/5-5

10

1

25

7,5 VA

5 VA 5P10

For others characteristics see next page

pag. 8/45

CURRENT TRANSFORMER

Type ARJP1/N1 F - ARJP1/N2 F Single Primary Ratio SR Panels type SM6 ( CRM, DM1-1250 A ) Drawing n° H 103441

Dimensions

Characteristics Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A.

Table of options: N° of secondaries for CT

1

2

STANDARDTYPE

ARJP1/N1 F

ARJP1/N2 F 1st measure secondary

Classe 0,5 Fs = 10 VA alternatively

5 7,5 10 15 20 20 30 30 30 30 30

"K"

Ipn

measure secondary

protection secondary

2nd protection secondary

K=Ith/Ipn

Rated primary

Cl. 0,5 Fs=10

Cl. 5P Fl=10

Cl. 5P Fl=10

Ith max

current [A]

VA

VA

VA

25 kA for 1s

SR

100

10 to 800

150

10 to 150

200

10 to 100

250

10 to 100

300

10 to 75

400

10 to 50

7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5

5

For others characteristics please contact us.

5 7,5 5 10 10 15 20 30 50

pag. 9/45

CURRENT TRANSFORMER Type ARJP1/N1 F Double Primary Ratio DR Panels type SM6 ( CRM, DM1-1250 A ) Dimensions


Characteristics

Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A. Double primary ratio through connection to secondary.

Value “ K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio . Values of outputs are gived for the smaller ratio, for the high ratio they are the double. Table of options: N° of secondaries for CT

1

ST ANDARD T YPE

A R J P 1 /N 1 F

alternatively

"K" K=I th/Ipn

Ith

max

Ip n

measure secondary


Rated

Cl ass 0,5

Cl ass 5P

primary

Fs = 10

Fl = 10

cur r ent [A]

VA

VA

25 kA for 1s

DR

100

10-20 to 400-800

150

10-20 to 150-300

200

10-20 to 100-200

250

10-20 to 100-200

300

10-20 to 75-150

400

10-20 to 50-100

7,5

10

15

20

30

50

5

7,5

10

15

20

30

50

D


pag. 10/45

H 103441

pag. 11/45

REFERENCED CURRENT TRANSFORMERS Type ARJP2/N2 F Dimensions


Characteristics


CELLULES SM6 ( CRM ) ARJP2/N2 F reference

Short-time current ratings

ratio

number

secondaries 1st

2nd protection

I th

t

I dyn

measure

kA

sec.

kA

cl 0,5

peak

FS<10

r.m.s.

TARIFF FRF

Second ary for measure 5A and secondary fo r pro tection 5A 3735325

50/5-5

10

1

25

7,5 VA

5VA5P10

5649

CELLULES SM6 ( DM1 1250 A, GBC-A 1250 A, GBC-B 1250 A ) ARJP2/N2 F reference


number

secondaries 1st

2nd protection

I th

t

I dyn

measure

kA

sec.

kA

cl 0,5

peak

FS<10

r.m.s.

Secondary fo r measure 5A and secondary f or p rotection 5A 3730519

600/5-5

25

1

62,5

20 VA

7,5 VA 5P20

3730520

750/5-5

25

1

62,5

20 VA

7,5 VA 5P20

Secondary fo r measure 1A and secondary f or p rotection 1A 3730523

600/1-1

25

1

62,5

20 VA

7,5 VA 5P20

3730524

750/1-1

25

1

62,5

20 VA

7,5 VA 5P20


pag. 12/45

CURRENT TRANSFORMER Type ARJP2/N1 F - ARJP2/N2 F Single Primary Ratio SR Panels type SM6 ( CRM, DM1-1250 A, GBCA 1250 A, GBCB 1250 A )


Dimensions

Characteristics Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A.

Table of options: N° of secondaries for CT

1

2

STANDARD TYPE

ARJP2/N1 F

ARJP2/N2 F 1st measure secondary

Cl. 0,5 Fs=10 VA alternatively

5 7,5 10 15 20 20 30 30 30 30 30

" K"

Ipn

measure secondary



K=Ith/Ipn

Rated primary

Cl. 0,5 Fs=10

Cl. 5P Fl=10

Cl. 5P Fl=10

Ith max

current [A]

VA

VA

VA

25 kA for 1s

SR

100

10 to 800

150

10 to 150

200

10 to 100

250

10 to 100

300

10 to 75

400

10 to 50

500

10 to 50

7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5

5

5 7,5 5

10 10 15 20 30 50

Switch to the smaller type ARJP1


pag. 13/45

CURRENT TRANSFORMER Type ARJP2/N1 F - ARJP2/N2 F Double Primary Ratio DR Panels type SM6 ( CRM, DM1-1250 A, GBCA 1250 A, GBCB 1250 A ) Dimensions


Characteristics

Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A. Double primary ratio through connection to secondary.

Value “ K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio . Values of outputs are gived for the smaller ratio, for the high ratio they are the double. Table of options: N° of secondaries for CT

1

2

STANDARD TYPE

A RJ P2 /N 1 F

A RJ P2 /N 2 F 1st measure secondary

Cl. 0,5 Fs=10 VA alternatively

5

7,5 10 15 20 20 30 30 30 30 30

" K"

Ip n

measure secondary



K=Ith/Ipn

Rated primary

Cl. 0,5 Fs=10

Cl. 5P Fl=10

Cl. 5P Fl=10

Ith max

current [A]

VA

VA

VA

25 kA for 1s

DR

7,5 10 15 20 30 50

100

10-20 to 400-800

150

10-20 to 150-300

200

10-20 to 100-200

250

10-20 to 100-200

300

10-20 to 75-150

400

10-20 to 50-100

500

10-20 to 50-100

5

7,5 10 15 20 30 50

5

5

5

7,5

5

10 10 15 20 30 50

Switch to the smaller type ARJP1


pag. 14/45

H 103442

pag. 15/45

REFERENCED CURRENT TRANSFORMERS Type ARJP3/N2 F Panels type SM6 ( DM1 1250 A,GBC-A 1250 A, GBC-B 1250 A ) Dimensions


Characteristics


ARJP3/N2 F reference


number

secondaries 1st

2nd protection

I th

t

I dyn

measure

kA

sec.

kA

cl 0,5

peak

FS<10

r.m.s.

Secondary for measure 5A and secondary for protection 5A 3730521

1000/5-5

25

1

62,5

30VA

10VA5P20

3730522

1250/5-5

25

1

62,5

30VA

10VA5P20

Secondary for measure 1A and secondary for protection 1A 3730525

1000/1-1

25

1

62,5

30VA

10VA5P20

3730526

1250/1-1

25

1

62,5

30VA

10VA5P20


pag. 16/45

CURRENT TRANSFORMER Type ARJP3/N1 F - ARJP3/N2 F - ARJP3/N3 F Single and Double Primary Ratio Panels type SM6 ( DM1 - 1250 A, GBCA 1250 A, GBCB 1250 A )


Dimensions

Characteristics Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated short-circuit thermal current max: 25 kA for 1s Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A. Double primary ratio through connection to secondary.

Values of outputs are gived for the smaller ratio, for the high ratio they are the double. Table of options: N° of secondaries for CT

1

2

3

STANDARD TYPE

ARJP 3/N1 F

ARJP3/N2 F

ARJP3/N3 F 1st meas.sec.

Cl. 0,5 Fs=10 VA 5

alternatively

5

10 15 20 30

1st measure secondary

2nd pro. sec.

Class 0,5

Cl. 5P Fl=10

VA

VA

7,5 10 15 20 20 30 30 30 30 30

5

5

7,5 10 15

Ip n

measure secondary



3rd pro.sec.

Rated primary

Cl. 0,5 Fs=10

Cl. 5P Fl=10

Cl. 5P Fl=10

Cl. 5P Fl=15

current [A]

VA

VA

VA

VA

SR

7,5 10 15 20 30 50

5

7,5 10 15 20 30 50

5

5

5

7,5

5

10 10 15 20 30 50

5

5

7,5 10 15

1000 1200 1250 DR

500-1000 600-1200


pag. 17/45

H 103443

pag. 18/45

REFERENCED CURRENT TRANSFORMERS Type ARM1/N1 F Panels type SM6 ( QMC ) Dimensions


Characteristics Standard reference IEC 185 and NFC 42502 Rated highest voltage : 24 kV Rated continous thermal current 1,2 x In Frequency 50 and 60 Hz

ARM 1/N1 F

Short-time current ratings secondary

reference

ratio

number

I th

t

I dyn

measure or protection

kA

sec.

kA

(equivalence)

r.m.s.

peak

Second ary for measure 5A and secondary fo r prot ection 5A 3731048

10/5

0,8

1

2

10 VA cl.0,5 Fs<10 or 5 VA 5P15

3731069

15/5

1,2

1

3

10 VA cl.0,5 Fs<10 or 5 VA 5P15

3731070

20/5

1,6

1

4

10 VA cl.0,5 Fs<10 or 5 VA 5P15

3731071

25/5

2

1

5

10 VA cl.0,5 Fs<10 or 5 VA 5P15

3731073

50/5

4

1

10

10 VA cl.0,5 Fs<10 or 5 VA 5P15

3731563

100/5

8

1

20

10 VA cl.0,5 Fs<10 or 5 VA 5P15

3731565

200/5

12,5

1

31,5

10 VA cl.0,5 Fs<10 or 5 VA 5P15

DELIVER Y QUANTITY

11 working days EXW min. n° 1 piece, max. n° 15 pieces For others characteristics see next page

pag. 19/45

CURRENT TRANSFORMER Type ARM1/N1 F - ARM1/N2 F Single and Double Primary Ratio Panels type SM6 ( QMC, IMC ) Dimensions


Characteristics

Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A. Double primary ratio through primary coupling.

Value “ K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio . Table of options: N° of secondaries for CT

1

2

STANDARDTYPE

ARM1/N1 F

ARM1/N2 F 1stmeasure secondary

Cl.0,5Fs=10 VA alternatively

5 7,5 10 15 20 20 30 30 30 30 30

"K"

Ipn

measuresecond.

protectionsecond.

2ndprotectionsecondary

K=Ith/Ipn

Ratedprimary

Cl. 0,5Fs=10

Cl. 5PFl=10

Cl. 5PFl=10

Ith max

current [A]

VA

VA

VA

25kAfor1s

SR

DR

100

10to 800

10-20to400-800

150

10to150

10-20to150-300

200

10to100

10-20to100-200

250

10to100

10-20to100-200

300

10to75

10-20to 75-150

400

10to50

10-20to 50-100

7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5 5 5 7,5 5 10 10 15 20 30 50


pag. 20/45

H 103003

pag. 21/45

REFERENCED CURRENT TRANSFORMERS Type ARM2/N2 F Panels type SM6 ( IMC ) Dimensions


Characteristics


A R M 2/N 2 F reference

ratio

number

Short-time current ratings

secondaries 1st

2nd

I th

t

I dyn

measure

protection

kA

sec.

kA

cl 0,5

5P

peak

FS<10

10

r.m.s.

S e c o n d a r y f o r m e a s u r e 5A a n d s e c o n d a r y f o r p r o t e c t i o n 5 A 3731576

50/5-5

12,5

1

31,5

7,5 VA

10 VA

3731577

75/5-5

16

1

40

7,5 VA

10 VA

3731578

100/5-5

25

0,8

62,5

7,5 VA

10 VA

3731579

150/5-5

25

1

62,5

7,5 VA

10 VA

3731580

200/5-5

25

1

62,5

7,5 VA

10 VA

3731582

300/5-5

25

1

62,5

7,5 VA

10 VA

3731583

400/5-5

25

1

62,5

7,5 VA

10 VA

3731584

500/5-5

25

1

62,5

7,5 VA

10 VA

3731585

600/5-5

25

1

62,5

7,5 VA

10 VA

DELIVER Y 11 workings days EXW QUANTITY min. n° 1 piece, max. n° 15 pieces pag. 22/45


CURRENT TRANSFORMER Type ARM2/N1 F - ARM2/N2 F Single and Double Primary Ratio Panels type SM6 ( IMC ) Dimensions


Characteristics

Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A. Double primary ratio through primary coupling.

Value “ K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio . Table of options: N° ofsecondariesforCT

1

2

STANDARDTYPE

ARM2/N1 F

ARM2/N2 F 1st measure secondary

Cl 0,5Fs=10 VA alternatively

5 7,5 10 15 20 20 30 30 30 30 30

"K"

Ipn

measuresecond

protectionsecond.

2ndprotectionsecondary

K=Ith/Ipn

Ratedprimary

Cl. 0,5Fs=10

Cl. 5PFl=10

Cl. 5PFl=10

Ith max

current [A]

VA

VA

VA

25kAfor1s

SR

DR

7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5

100

10to 800 10-20to 400-800

150

10to300 10-20to300-600

200

10to300 10-20to300-600

250

10to200 10-20to200-400

300

10to150 10-20to150-300

400

10to100 10-20to100-200

500

10to 50 10-20 to 100-200

5

5 7,5 5 10 10 15 20 30 50

SwitchtothesmallertypeARM1


pag. 23/45

H 103004

pag. 24/45

REFERENCED CURRENT TRANSFORMERS Type ARM3/N2 F Panel type SM6 ( DM1, DM2, GBC-A, GBC-B ) Dimensions


Characteristics

Standard reference IEC 185 and NFC 42502 Rated highest voltage : 24 kV Rated continous thermal current 1,2 x In Frequency 50 and 60 Hz Double primary ratio through primary coupling.

Short-time current ratings secondaries serial couplin parallel couplin 1st 2nd rati I th t I dyn I th t I dy measure protectio kA sec. kA kA sec. kA cl 0,5 r.m.s. peak r.m.s. peak FS<10 Secondary for measure 5A and secondary for protection 5A 10-20/5-1 5 1 12,5 10 1 25 7,5 VA 1VA 10P30 20-40/5-1 12,5 0,8 31,5 25 0,8 62,5 7,5 VA 1VA 10P30 25-50/5-1 12,5 0,8 31,5 25 0,8 62,5 7,5 VA 1VA 10P30 50-100/5-1 12,5 1 31,5 25 1 62,5 7,5 VA 1VA 10P30 75-150/5-1 12,5 1 31,5 25 1 62,5 7,5 VA 1VA 10P30 100-200/5-1 12,5 1 31,5 25 1 62,5 7,5 VA 1VA 10P30 200-400/5-1 12,5 1 31,5 25 1 62,5 7,5 VA 1VA 10P30 300-600/5-1 25 1 62,5 50 1 125 7,5 VA 1VA 10P30 Secondary for measure 5A and secondary for protection 5A 10-20/5-5 5 1 12,5 10 1 25 7,5 VA 5 VA 5P10 15-30/5-5 8 1 20 16 1 40 7,5 VA 5 VA 5P10 20-40/5-5 12,5 0,8 31,5 25 0,8 62,5 7,5 VA 5 VA 5P10 25-50/5-5 12,5 1 31,5 25 1 62,5 7,5 VA 5 VA 5P10 25-50/5-5 12,5 0,8 31,5 25 0,8 62,5 15 VA 5 VA 5P10 50-100/5-5 21 1 52,5 42 1 105 7,5 VA 5 VA 5P15 50-100/5-5 14,5 1 36,5 29 1 72,5 30 VA 5 VA 5P15 equivalence 30 VA 7,5 VA 5P10 75-150/5-5 25 1 62,5 25 1 62,5 7,5 VA 5 VA 5P15 75-150/5-5 16 1 40 32 1 80 30 VA 5 VA 5P15 30 VA 7,5 VA 5P10 equivalence 100-200/5-5 25 1 62,5 25 1 62,5 7,5 VA 5 VA 5P15 20 2 62,5 20 2 62,5 " " equivalence 100-200/5-5 16 1 40 32 1 80 30 VA 7,5 VA 5P15 equivalence 30 VA 15 VA 5P10 200-400/5-5 25 1 62,5 25 1 62,5 7,5 VA 5 VA 5P15 equivalence 20 2 62,5 20 2 62,5 " " 200-400/5-5 25 1 62,5 25 1 62,5 30 VA 7,5 VA 5P15 30 VA 15 VA 5P10 equivalence 300-600/5-5 25 1 62,5 25 1 62,5 7,5 VA 5 VA 5P15 20 2 62,5 20 2 62,5 " " equivalence 300-600/5-5 25 1 62,5 25 1 62,5 30 VA 7,5 VA 5P15 equivalence 30 VA 15 VA 5P10

ARM3/N2 F reference number

3731074 3731078 3731080 3731082 3731084 3731086 3731088 3731703 3731090 3731092 3731094 3731096 3731097 3731098 3731099 3731100 3731101 3731102 3731103 3731104 3731105 3731708 3730426

For others characteristics please contact us

pag. 25/45

CURRENT TRANSFORMER Type ARM3/N1 F - ARM3/N2 F Single and Double Primary Ratio Panels type SM6 ( DM1, DM2, GBC-A, GBC-B ) Dimensions


Characteristics

Standard reference IEC 185 Rated highest voltage : 7,2 - 12 - 17,5 - 24 KV Rated continous thermal current 1,2 x In Frequency 50 or 60 Hz Rated secondary current standard 5 or 1 A Double primary ratio through primary coupling.

Value “ K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio . Table of options: N° of secondaries for CT

1

2

STANDARDTYPE

ARM3/N1 F

ARM3/N2 F 1st measure secondary

Cl 0,5 Fs=10 VA alternatively

5 7,5 10 15 20 20 30 30 30 30 30

"K"

Ipn

measure second

protection second


K=Ith/Ipn

Rated primary

Cl 0,5 Fs=10

Cl 5P Fl=10

Cl 5P Fl=10

Ith max

current [A]

VA

VA

VA

25 kA for 1s

SR

DR

100

10to 800 10-20to 400-800

150

10to 300 10-20 to300-600

200

10to 300 10-20 to300-600

250

10to 200 10-20 to200-400

300

10to 150 10-20 to150-300

400

10to 100 10-20 to100-200

500

10 to 50

7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5

5

5 7,5 5

10 10 15 20 30 50

10-20 to 100-200


pag. 26/45

H 103005

pag. 27/45

SECOND PART VOLTAGE TRANSFORMERS

PREFERABLY USE the equipment selected and marked as REFERENCED

RECOM M ENDATI ONS FOR TH E USE OF TH E F EASI BI LI TY AND COM PUTATI ON SUPPORTS

_______________ ¶

CHECK NEEDS AND NECESSARY INFORMATION ACCURATELY

·

USE EQUIPMENT MARKED AS REFERENCE

¸

CHECK READLY AVAILABLE FEASIBILITY SECTIONS

DIRECTLY TO APPLY KEYS TO F EASI BI LI TY TABL ES CORRECTL Y, PLE ASE SEE ON PAGE 29

¹

CONSULT IF FEASIBILITY RANGE IS NOT AVAILABLE OR FOR OTHERS CHARACTERISTICS

º

USE CONSULTATION AND ORDER CHARTS

pag. 28/45

KEY S TO THE VARIOUS TABLES TO DEFINE FEASIBILITY 1)

Define Up rated primary voltage

According to the system voltage (U) and the type of transformer's connections: between phase and ground (Up = U / √ 3) or betwwee phases (Up = U) . Guaranteed transformer accuracy is between 0,8 Un and 1,2 Un. Make use of this feature to choose standard voltage values. example:

2)

At 6600: √3 V voltage, guaranteed accuracy ranges between 5300: √3 to 7900: √3. Consequentely, when a 6900: √3 voltage transformer is required, a standard value of 6600:√3 can be used.

Defining the rated insulation level

Rated insulation level must be the one immediatly above assigned voltage. To this regard the IEC standard advises : · Rated lightning-impulse voltage · Rated power-frequency voltage · Highest voltage for equipment ( Um) which result in: U = 3 - 3,3 - 5 - 5,5 - 6 - 6,6 kV

Rated Insulation level

>> 7,2/20 (see note) / 60 kV

U = 10 - 11 kV


>> 12/28 (see note) / 75 kV

U = 13,8 - 15 kV


>> 17,5/38 (see note) / 95 kV

U = 20 - 22 kV


>> 24/50 (see note) /125 kV

NOTE:

The power frequency dielectric test, according to IEC standards is performed using the value calculated using this formula:

5 x Up

with maximum value of the relative isolation degree.

exemples: U = 22 kV TT phase-earth >> insulation level 24 / 50 / 125 kV >> Up=U / √3=22 / √3=12,7 kV and 5 x 12,7 = 63,5 kV therefore the level is 24 / 50 / 125 kV U = 3,3 kV TT phase-ground >> insulation level 7,2 / 20 / 60 kV >> Up=U / √3=3,3 / √3=1,9 kV and 5 x 1,9 = 10 kV therefore the level is 7,2 / 10 / 60 kV 3)

Define Us rated secondary voltage

Standard values are 100 and 110 divided √3, for star-connected measure and protection coils, and 100 et 110 divided 3 for open triangle connected residual voltage. 4)

Define the Frequency

Values are 50 or 60 Hz

F

Reversal not possible in case of error pag. 29/45

5)

Rated voltage factor

This is the factor multiplying primary voltage Up to define the hihest voltage for equipment Um.

6)

1,9 for 8 hours

for phase-ground voltage transformers

1,2 continuous

for phase-phase voltage transformers

Finding position on the table

Locate the column corresponding to the number of secondary coil windings and to the type of output (either simultaneous or not). Please refer to technical notes on this topic.

7)

Check feasibility

The performances marked by boxes :

are possible.

Voltage transformer can now be ordered on our special order forms

order form contact us for other available features using the consultation forms

consultation form

pag. 30/45

TECH NI CAL NOTES Di agr ams of the ter min al mar ki ngs accor ding to I EC standards Phase-ground voltage transformers with: A (P1)

N (P2)

a (1S1)

n (1S2)

A

(P1)

N

a

n

(1S1)

one secondary (measure or protection)

A

da

(1S2) (2S1)

(P2)

A

dn

1a

(2S2)

(1S1)

two secondaries (one measure and one residual voltage) non simultaneous output

(P1)

N

1a

2n 2a

2n da

(1S1)

(1S2) (2S1)

(2S2) (3S1)

(P1)

(P2)

N

1n

2a

2n

(1S2) (2S1)

(2S2)

two secondaries (two measure and/or protection) simultaneous output A (P1)

N

a1 (1S1)

dn

(P2)

a2

(1S3)

n

(P2)

(1S2)

(3S2)

three secondaries (two measure and/or protection and one for residual voltage) simultaneous output for the fir st two and non simu ltaneous for the thir d

double primary ratio (by connection to secondary) LOW RATIO a1 - n HIGH RATIO a2 - n

Phase-phase voltage transformers: A

B

a

b

one secondary (measure or protection)

A

a1

B

a2

b

double primary ratio (by connection to secondary) a1 - b LOW RATIO a2 - b HIGH RATIO pag. 31/45

TECH NI CAL NOTES Output The output is simultaneous when two secondary windings are used for measure or for protection. The output is not simultaneous only when there is a winding for the residual voltage besides a secondary one for measure or protection. The winding for residual voltage has an open-triangle connection. During normal service, voltage is null at the triangle terminals, therefore the output of this winding is null. When out of order, current at the triangle terminals activates the resistance and/or the relays. When out of order, the accuracy of the secondary measure or protection coil winding is not guaranteed. The following is a typical connection of phase-ground voltage transformers:

A

A

A

N

N

N

n

n

n

Primary winding Measure or protection secondary winding Secondary winding for residual voltage

a

a

a

da

da

da

dn

dn

dn

Open triangle formed by windings for residual voltage. Here is the connection of the resistance and/or of the voltage relay.

I solated N (P2) ter min al. Standard manifacturing of phasee-ground voltage transformers features the N (P2) terminal in the terminal box isolated from earth by 3 kV. Transformers are always delivered with this terminal connected to the earth terminal by a strip. In some cases this N (P2) terminal cannot be located in the terminal box. In a ny case, it is connected to the ground inside the transformer. These cases include the following: VT with three secondary windings. + VT with two secondary windings and double primary ratio. +

pag. 32/45

REFERENCED VOLTAGE TRANSFORMERS Type VRQ2n/S1 - VRQ2n/S2 Panels type SM6 ( CM, DM1, DM2, GBC-A, GBC-B ) Description

Voltage transformer for phase-ground connection with terminal P2 (N) isolated from earth 3 kV.

Dimensions


Characteristics Standard reference IEC 186 and NFC 42501 Rated voltage factor: 1,9 for 8 hours Thermal burden: 250 VA

Rated output and accuracy class

Reference number

Ratio

3731726

10000: r.3 / 100: r.3 100: r.3 15000: r.3 / 100: r.3 100: r.3 20000: r.3 / 100: r.3 100: r.3 11000: r.3 / 110: r.3 110: 3 13800: r.3 / 110: r.3 110: 3 15000: r.3 / 100: r.3 100: 3 20000: r.3 / 100: r.3 100: 3 22000: r.3 / 110: r.3 110: 3 15000:r.3-20000:r.3 / 100: r.3

3735116 3731729 3735497 3736230 3735153 3735154 3736231 3735155

Rated insulation level

30 VA cl 0,5 12 kV 30 VA cl 0,5 30 VA cl 0,5 17,5 kV 30 VA cl 0,5 30 VA cl 0,5 24 kV 30 VA cl 0,5 30 - 50 VA cl 0,5 12 kV 30 VA 3P 30 - 50 VA cl 0,5 17.5 kV 30 VA 3P 30 - 50 VA cl 0,5 17.5 kV 30 VA 3P 30 - 50 VA cl 0,5 24 kV 30 VA 3P 30 - 50 VA cl 0,5 24 kV 30 VA 3P 30 - 50 VA cl 0,5 24 kV

Output

Frequency

simultaneous

50 and 60 Hz

simultaneous

50 and 60 Hz

simultaneous

50 and 60 Hz

non simultaneous 50 and 60 Hz non simultaneous 50 and 60 Hz non simultaneous 50 and 60 Hz non simultaneous 50 and 60 Hz non simultaneous 50 and 60 Hz ______


50 and 60 Hz

pag. 33/45

VOLTAGE TRANSFORMERS

Type VRQ2n/S1 - VRQ2n/S2 - VRQ2n/S3 Panels type SM6 ( CM, DM1, DM2, GBC, GBCA, GBCB ) Description Voltage transformer for phase-ground connection with terminal P2 (N) isolated from earth 3 kV ( except for the type with three secondaries) Dimensions Drawing n° H 103002 Characteristics Standard reference IEC 186 Standard primary voltage Up: 3-3,3-5-5,5-6-6,6 10-11 Rated insulation level : 7,2 kV 12 kV Rated secondary voltage Us: 100: r.3 100 : 3 Frequency 50 or 60 Hz Rated voltage factor: 1,9 for 8 hours Thermal burden: 250 VA

13,8-15 17,5 kV 110: r.3

20-22 24 kV 110 : 3

:r3 kV V

Table of options. TYPE

VRQ2n/S1

VRQ2n/S2

VRQ2n/S3

N° of secondaries for VT

1

2

3

Measure

1st Measure

1st Measure

1st and 2nd Measure

or

2nd Protection

or Protection

or Protection

Protection

or Measure

2nd residual

3rd residual

voltage

voltage

Application

100: r.3

100: r.3 - 100: r.3

100: r.3 - 100:3

100: r.3 or 110: r.3

or

or

or

and

110: r.3

110: r.3 - 110: r.3

110: r.3 - 110:3

100:3 or 110:3

-------

Simultaneous

Non simultaneous

Simultaneous

Secondary voltage Output

Non simultaneous

3rd

Class

-------

-------

-------

secondary

Output

-------

-------

-------

2nd

Class

-------

0,5 or 1

3P

secondary

Output

-------

1st

Class

secondary

Output

0,2

3P 50

0,2

0,5

0,2

75

0,5 or 1

10 15 20 15 30 50 50 50 75 50 50 75

0,5

50

10

0,5

15 20 30 30 50 75 10 15 20 15 30 50 15 20 30 30 50 75


20

30

0,5 10

20

30

pag. 34/45

H 103002

pag. 35/45

VOLTAGE TRANSFORMER

Type VRQ3n/S1 - VRQ3n/S2 - VRQ3n/S3 Panels type SM6 ( CRM ) Description Voltage transformer for phase-ground connection with terminal P2 (N) isolated from earth 3 kV ( except for the type with three secondaries) Dimensions Drawing n° H 102617 Characteristics Standard reference IEC 186 Standard primary voltage Up: 3 - 3,3 - 5 - 5,5 - 6 - 6,6 Rated insulation level : 7,2 kV Rated secondary voltage Us: 100: r.3 100 : 3 Frequency 50 or 60 Hz Rated voltage factor: 1,9 for 8 hours Thermal burden: 250 VA

10 - 11 12 kV 110: r.3

13,8 - 15 17,5 kV 110 : 3

:r3 kV V


VRQ3n/S1

VRQ3n/S2

VRQ3n/S3


1

2

3

Measure

1st Measure

1st Measure

1st and 2nd Measure

or

2nd Protection

or Protection

or Protection

Protection

or Measure

2nd residual

3rd residual

voltage

voltage

Application

100: r.3

100: r.3 - 100: r.3

100: r.3 - 100:3

100: r.3 or 110: r.3

or

or

or

and

110: r.3

110: r.3 - 110: r.3

110: r.3 - 110:3

100:3 or 110:3

-------

Simultaneous

Nonsimultaneous

Simultaneous


Non simultaneous

3rd

Class

-------

-------

-------

secondary

Output

-------

-------

-------

2nd

Class

-------

0,5 ou 1

3P

secondary

Output

-------

1st

Class

secondary

Output

0,2

3P 50

0,2

0,5

0,2

75

0,5 ou 1

10 15 20 15 30 50 50 50 75 50 50 75

0,5

50

10

0,5

15 20 30 30 50 75 10 15 20 15 30 50 15 20 30 30 50 75


20

30

0,5 10

20

30

pag. 36/45

H 102617

pag. 37/45

REFERENCED VOLTAGE TRANSFORMERS

Type VRM3n/S2 Panels type SM6 ( GBC-A, GBC-B ) Description

Voltage transformer for phase-ground connection with place for primary fuse and terminal P2 (N) isolated from earth 3 kV. Dimensions

Drawing n° H 103559 Characteristics

Standard reference IEC 186 and NFC 42501 Rated voltage factor: 1,9 for 8 hours Thermal burden: 250 VA

Reference number 3736232 3736233 3736234

Ratio

Rated output an d accu racy class

10000: r.3 / 100: r.3 30 - 50 VA cl 0,5 / 100: 3 50 VA 3P 15000: r.3 / 100: r.3 30 - 50 VA cl 0,5 / 100: 3 50 VA 3P 20000: r.3 / 100: r.3 30 - 50 VA cl 0,5 / 100: 3 50 VA 3P

DELIVER Y QUANTITY

Rated insulation level

Output

Frequency

12 kV

non simultaneous 50 and 60 Hz

17.5 kV


24 kV


11 working days EXW min. n° 1 piece, max. n° 9 pieces For others characteristics see next page

pag. 38/45


Type VRM3n/S1 - VRM3n/S2 Panels type SM6 ( GBC, GBCA, GBCB ) Description Voltage transformer for phase-ground connection with place for primary fuse and terminal P2 (N) isolated from earth 3 kV. Dimensions Drawing n° H 103559 Characteristics Standard reference IEC 186 Standard primary voltage Up: Rated insulation level : Rated secondary voltage Us: Frequency 50 or 60 Hz Rated voltage factor: 1,9 for 8 hours Thermal burden: 250 VA

3-3,3-5-5,5-6-6,6 10-11 7,2 kV 12 kV 100: r.3 100 : 3

13,8-15 17,5 kV 110: r.3

20-22 :r3 kV 24 kV 110 : 3 V


VRM3n /S1

VRM3n /S2


1

2

Measure

1st Measure

1st Measure

or

2nd Protection

or Protection

Protection

or Measure

2nd residual

Application

voltage


100: r.3

100: r.3 - 100: r.3

100: r.3 - 100:3

or

or

or

110: r.3

110: r.3 - 110: r.3

110: r.3 - 110:3

-------

Simultaneous

Non simultaneous

0,5 or 1

3P

2nd

Class

-------

secondary

Output

-------

1st

Class

secondary

Output

0,2

10 15 20 15 30 50 50 50 75 50 50 75

0,5

0,2

0,5

0,2

0,5

15 20 30 30 50 75 10 15 20 15 30 50 15 20 30 30 50 75


pag. 39/45

H 103559

pag. 40/45


Type VRC1/S1 F - VRC1/S2 F Panels type SM6 ( CRM ) Description

Voltage transformer for phase-phase connection Dimensions


Standard reference IEC 186 Standard primary voltage Up: 3-3,3-5-5,5-6-6,6 10-11 Rated insulation level : 7,2 kV 12 kV Rated secondary voltage Us: 100 - 110 V Frequency 50 or 60 Hz Rated voltage factor: 1,2 continuous Thermal burden: 300 VA

13,8-15 17,5 kV

kV

Table of options: TYPE

VRC1/S1 F

VRC1/S2 F


1

2

Measure

1st Measure

or

or Protection

Protection 100

2nd Protection 100 - 100

or

or

110

110 - 110

----------

Simultaneous

Application


2nd

Class

----------

0,5 or 1

secondary

Output

----------

15

1st

Class

secondary

Output

0,2 25

0,5 50

50

75

25

0,5 or 1 30

0,2 100

15


50

100

0,5 25

30

50

100

pag. 41/45

H 105439

pag. 42/45

REFERENCED VOLTAGE TRANSFORMERS

Type VRC2/S1 F Panels type SM6 ( CM2, DM2, GBC, GBCA ) Description



Standard reference IEC 186 Rated voltage factor: 1,2 continuous Thermal burden: 500 VA

Ref er en c e n u m b er

Rat i o

Rat ed o u t p u t an d ac c u r ac y c l as s

Rat e d i n s u l at i o n l ev el

Fr eq u en c y

3731905

10000 / 100

50 VA cl 0,5

12 kV

50 and 60 Hz

3731904

15000 / 100

50 VA cl 0,5

17.5 kV

50 and 60 Hz

3731435

20000 / 100

50 VA cl 0,5

24 kV

50 and 60 Hz


pag. 43/45


Type VRC2/S1 F - VRC2/S2 F Panels type SM6 ( CM2, DM2, GBC-A, GBC-B ) Description



Standard reference IEC 186 Standard primary voltage Up: 3-3,3-5-5,5-6-6,6 10-11 Rated insulation level : 7,2 kV 12 kV Rated secondary voltage Us: 100 - 110 V Frequency 50 or 60 Hz Rated voltage factor: 1,2 continuous Thermal burden: 500 VA

13,8-15 17,5 kV

20-22 24 kV

kV

Table of options:

TYPE

VRC2/S1 F

VRC2/S2 F


1

2

Measure

1st Measure

or

or Protection

Protection 100

2nd Protection 100 - 100

or

or

110

110 - 110

----------

Simultaneous

Application


2nd

Class

----------

0,5or 1

secondary

Output

----------

25

1st

Class

secondary

Output

0,2 50

0,5 75

75

100

50

0,5or 1 30

0,2 120

25

50

100

0,5 50

30


50

100

pag. 44/45

Magrini - Instrument Transformers for SM6

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