ism/dou ismd series: 15 kv draw-out circuit breakers series

Phone: 1.866.551.8362 (604.540.6600) Website: www.tavrida-na.com

Office: 1105 Cliveden Ave, Delta, British Columbia, Canada

ISM/DOUSERIESISMD Series: 15 kV Draw-Out Circuit Breakers

The Tavrida ISMD series of draw out circuit breakers are compact, lightweight solutions for high frequency switching operations.

Utilizing the latest advancements in mag-netic actuator design and vacuum tech-nology, the ISMD requires virtually no maintenance. 30,000 full load close-open operations are achieved without any service required to the switching module.

Cable connection ensures reliable mating of the auxiliary circuits, designed to exceed IEC and ANSI requirements for racking.

The ISMD was designed from the ground up for compact metal clad switchgear where no maintenance and high reli-ability is paramount. The fast trip HD breaker element is a magnetic-actuator driven device, resulting in high switching frequency capability and fast breaking times.

The ISMD series is available to work with arc flash relays. In standard applica-tions the breaker can clear a fault in 2.2 cycles; with specific controls, this can be reduced to as low as one cycle to further enhance arc flash mitigation.



ISM/DOUSERIESISMD Series: Breaker Design

The ISMD series draw outs are built with the advanced Tavrida HD series breaker element. Driven by three magnetic actuators at the base (9), the HD breaker is capable of 30,000 close - open operations at full load.

Standing only 21“ high, and only 9“ deep, the HD series handle currents as high as 2000A continuous and 31.5kA interrupting. The exceptional shell-type design (1) insulates the phases from each other, while the direct linear connection of the interrupter to the actuators (6) delivers a break time of less than 3 cycles standard, with 1 cycle break for special applications.

The HD series simplify interlocking through an integrated manual trip lever at the rear that both blocks the unit electrically as well as mechanically (13). Six NO and six NC contacts (12) are built-in along with a cable connected visual position indicator (pictured below).

1. Support insulator

2. Upper terminal

3. Vacuum interrupter

4. Movable contact with bellows

5. Lower terminal

6. Pulling insulator

7. Actuator stator

8. Opening and contact pressure springs

9. Actuator coil

10. Armature

11. Synchronizing shaft

12. Auxiliary contacts

13. Interlocking shaft

14. Main contacts position indicator link

15. Frame

16. Fixing points

1

2

3

4

6

7

10

13

5

14

15

12

11

16

8

9



ISM/DOUSERIESISMD Series: CM1501 Control Modules

Tavrida circuit breakers are driven exclusively by magnetic actuators, and therefore require a specialized control module to provide trip and close functions.

The Tavrida CM1501 is the control module most commonly used with the ISMD series of draw out breakers.

In new switchgear applications, no trip or close coils are required for Tavrida breakers. Instead, dry contacts are wired to the close and trip inputs of the CM1501 control module, which in turn sends a pulse to the magnetic actuators to drive the breaker contacts.

The CM1501 module continously monitors the health of both the breaker and the control module itself, providing status indication through LED’s mounted on the front and through external signalling relays for remote indication. Any failure or loss of communication with either the position switch of the breaker or the magnetic actuators will block the close command, only allowing the breaker to be tripped until the fault is rectified. Anti-pumping duty is built into the control logic.

For retrofill applications utilizing the ISMD series, the compact size of the CM1501 allows easy integration into the existing low voltage compartment of the switchgear.



ISM/DOUSERIESProduct Specifications: ISMD 210mm Pole Center Series

ISM Type ISMD-114, 5/15 kV, 1200A and 2000A

Control Module Type CM1501

Rated data

Rated voltage (Ur) to 15 kV

Rated current (Ir) to 2000 A

Rated power frequency withstand voltage (Ud) 36 kV

Rated lightning impulse withstand voltage (peak) (Up) 95 kV

Rated short-circuit breaking current (Isc)29 kA @ 15 kV31.5 kA @ 5 kV

Rated peak withstand current (Ip, close and latch) to 82 kA

Rated short-time withstand current (Ik) to 31.5 kA

Rated duration of short circuit (tk) 4 s

Rated frequency (fr) 50/60 Hz

Switching performance

Mechanical life (CO-cycles) 30 000

Operating cycles, rated current (CO-cycles) 30 000

Operating cycles, rated–short circuit breaking current (O-operations) 50

Closing time 52 ms

Opening time, not more than 27 ms

Break time 1), not more than 37 ms

Rated operating sequence (CM/TEL...-12-01A) O-0.1s-CO-10s-CO

Standards

Design class with regard to severity of service conditions in accordance with IEC 60932 Class 1

International testing standards IEC 62271-100 , GB 1984-2003, ANSI C37.54

Mechanical vibration withstand capability according to IEC 60271, IEC 60068 Class 4M4

Other data

Resistance of main circuit < 22 µOhm

Pole center distance 210 mm

Type of driving mechanism Monostable magnetic actuator

Design, switching capacity of auxiliary contacts

Number of available auxiliary contacts 5 NO + 6 NC (Contact position)3 NO + 3 NC (TOC, Test position)

3NO + 3NC (TOC, Connected position)

Rated power frequency test voltage, auxiliary circuits 2 kV

Maximum current for 125 V DC, ohmic load 0.5 A

Maximum current for 125 V DC, inductive load (t=20 ms) 0.03 A

Maximum current for 250 V DC, ohmic load 0.25 A

Maximum current for 250 V DC, inductive load (t=20 ms) 0.03 A

Maximum current for 125 V AC, ohmic load 5 A

Maximum current for 125 V AC, inductive load (cosj =0,3) 5 A

Maximum current for 250 V AC, ohmic load 5 A

Maximum current for 250 V AC, inductive load (cosj =0,3) 5 A

1) HD series breakers can be de-rated to 25kA, with applicable control module, for applications that require 1 cycle (16ms) break time. Contact Tavrida Electric NA or your local Tavrida representative for further details.



ISM/DOUSERIESProduct Specifications: ISMD-15-29/1200-114 Drawings

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

AA

BB

CC

DD

EE

FF

Item

ref

Qua

ntity

Des

igne

d by

Chec

ked

byAp

prov

ed b

y -

date

File

nam

eD

ate

Scal

e

Title

/Nam

e,de

sign

atio

n,m

ater

ial,d

imen

sion

etc

Artic

le N

o./R

efer

ence

Editi

onSh

eet

I N

D U

S T

R I

A L

G

R O

U P

TAVR

IDA

ELEC

TRIC

5TEC

.000

.005

2009

-4-2

41:

5

Circ

uit

Brea

ker

Com

part

men

t5T

EC.0

00.0

050

1/1

Kevi

n H

anR

obin

Den

gLe

o Zh

ang

19.02 (483)7.87

(200

)7.87

(20

0)7.87

(200

)

28.98

(736

)

1.97 (50)9.25 (235)9.25 (235)9.25 (235)

5.1 (129.5)2.78 (70.5)

2.76

(70

)7.09

(180)

7.09

(180)

7.09

(180)

27.17

(690

)

28.58

(726

)

37.64

(956

)

0.79 (20)

14.49 (368)8.07 (205)

31.5 (800)

4.25 (108)4.53 (115)

25.94

(659

)

31.34

(796

)

8.27 (210)8.27 (210)

Not

es:

1.Al

l dim

ensi

ons

in in

ches

(m

m).

2.A～

P fo

r fit

ting.

AB

CD

EF

GH

I(J)

K(L)

M(N

)O

(P)



ISM/DOUSERIESProduct Specifications: ISMD-15-29/2000-114 Drawings

1 1

2 2

3 3

4 4

5 5

6 6

7 7

8 8

AA

BB

CC

DD

EE

FF

Item

ref

Qua

ntity

Des

igne

d by

Chec

ked

byAp

prov

ed b

y -

date

File

nam

eD

ate

Scal

e

Title

/Nam

e,de

sign

atio

n,m

ater

ial,d

imen

sion

etc

Artic

le N

o./R

efer

ence

Editi

onSh

eet

I N

D U

S T

R I

A L

G

R O

U P

TAVR

IDA

ELEC

TRIC

5TEC

.000

.006

2009

-4-2

41:

5

Circ

uit

Brea

ker

Com

part

men

t5T

EC.0

00.0

060

1/1

Kevi

n H

anR

obin

Den

gLe

o Zh

ang

28.98

(736

)

21.26 (540)

7.87

(20

0)7.87

(20

0)7.87

(20

0)

1.97 (50)8.86 (225)8.86 (225)8.86 (225)8.86 (225)

0.79 (20)

27.17

(690

)

2.76

(70

)7.09

(180)

7.09

(180)

7.09

(180)

28.58

(726

)

39.72

(100

9)

5.1 (129.5)3.46 (88)

15.28 (388)

12.2 (310)

39.37 (1000)

25.94

(659

)

31.34

(796

)

4.25 (108)4.72 (120)8.27 (210) 8.27 (210)

Not

es:

1.Al

l dem

ensi

ons

in in

ches

(m

m).

2.A ～

P fr

o fit

ting.

AB

CD

EF

GH

IJ

K(L)

M(N

)O

(P)

Q(R

)

ism/dou ismd series: 15 kv draw-out circuit breakers series

Documents