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we feed what you need

ECOSMART VCB LMedium Voltage Vacuum Circuit Breaker for Secondary

DistributionUp to 24kV 1250A 25KA

CATALOGUE 2014

VCB008

we feed what you need2

ECOSMART VCB L

PRESENTATION

SIXTY YEARS OF EXPERIENCE

The date of a firm’s foundation never truly reflects its whole history. At least such is the case with Tozzi electrical equipment, a company which started off as a family run concern at the start of last century and later became a fully-fledged business, sixty years ago in fact. Yet these different experiences have some significant features in common: innovation, company,spirit and technological challenge. Tozzi electrical equipment is a firm with experience both in technology and human relations, a firm which looks to the future of electric and electronic systems engineering, and this experience can be seen as much in the professionalism of the more than 100 employed at TOZZI ELECTRICAL EQUIPMENT factory.ECOSMART VCB L is the result of TOZZI ELECTRICAL EQUIPMENT continuous innovation and research oriented to the worldwide customers satisfaction. Among the markets changing needs the ECOSMART VCB L series provides reliable technical solutions offering long-term safety and user-friendly applications.Sustainability and environment care have been the TOZZI ELECTRICAL EQUIPMENT “inspirations” for this development.

Factory (Foggia, Italy)

Headquarters (Ravenna, Italy) Locations

IM0001

IM0003-0004

IM0002

IM0005

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ECOSMART VCB L

Reliability and safetyThey are the main concerns of ECOSMART VCB L series. Service continuity and long life performances are provided. People safety is a paramount. The ECOSMART VCB L series is fully developed and type tested according to the IEC standards 62271-100.

FlexibilityA large range of available accessories with different functions make the vacuum Circuit Breaker able to satisfy the most commonly electrical needs of the typical substations. The series brings to the market a versatile circuit breaker ready to cover the most various installation requirements and market segments.

Sustainability and Environment care The ECOSMART VCB L series development has been driven by the environment sustainability theme. The used materials for its production allow a real low environment impact during the product life and most important at the end of its life cycle. The ECOSMART VCB L series philosophy fully meets the environment exigencies. The ECOSMART VCB L production site and the environmental management system assumed by TOZZI ELECTRICAL EQUIPMENT is in accordance with the standards quality rules ISO 14001.

LER0008

M0033

IM0006


ECOSMART VCB L

VACUUM TECHNOLOGY

Long service life and high reliability are demanded to be able to distribute and use electric energy in a safe and secure way. The vacuum interrupters take advantages of vacuum thanks to its exceptional dielectric characteristics and capabilities as an interrupting medium. The vacuum interrupters has two main contacts, one fixed and one mobile. Both contacts are housed inside a sealed enclosure (vacuum bottle) that enable a high vacuum level to provide the insulating distance between the contacts. The high dielectric property of the vacuum allow the contact distance reduction. The above conditions plus the low opening speed demanded permit the use of an operating mechanism with low control energy. To ensure the vacuum conditions and so the safe operations, the enclosure must be perfectly sealed.

The current interruption is initiated by the separation of the contacts. This separation causes an electrical arc made up of a molten metal bridge (vaporization of the contact material).The contact material vaporization quickly condense and the arc disappear. The vacuum level is restored as well as the contacts insulating distance and the current interruption is completed.

ECOSMART VCB L

4 We feed what you need

VACUUM TECHNOLOGY

Long service life and high reliability are demanded to be able to distribute and use electric energy in a safe and secure way. The vacuum interrupters take advantages of vacuum thanks to its exceptional dielectric characteristics and capabilities as an interrupting medium. The vacuum interrupters has two main contacts, one fixed and one mobile. Both contacts are housed inside a sealed enclosure (vacuum bottle) that enable a high vacuum level to provide the insulating distance between the contacts. The high dielectric property of the vacuum allow the contact distance reduction. The above conditions plus the low opening speed demanded permit the use of an operating mechanism with low control energy. To ensure the vacuum conditions and so the safe operations, the enclosure must be perfectly sealed.

The current interruption is initiated by the separation of the contacts. This separation causes an electrical arc made up of a molten metal bridge (vaporization of the contact material) The contact material vaporization quickly condense and the arc disappear. The vacuum level is restored as well as the contacts insulating distance and the current interruption is completed.

VCB0009

VCB0010

VCB0009

VCB0010


ECOSMART VCB L

ECOSMART VCB L VACUUM CIRCUIT BREAKER STRENGHTS AND PECULIARITIES

The ECOSMART VCB L vacuum circuit breaker is characterized by highest level of technology used by TOZZI ELECTRICAL EQUIPMENT in manufacturing medium voltage equipments. The 40 years of experience at your service offers a comprehensive range, safe and easy to install with a compact dimensions, with limited maintenance with the aim to satisfy all the worldwide market requirements.

The major ECOSMART VCB L vacuum circuit breaker strengths are listed below:

Safety/Reliability:

• Long mechanical and electrical life.• High number of operations.• Limited Maintenance.• Easy check of the Circuit breaker wear conditions.• Interlock to avoid closing operations with circuit breaker

closed and spring charged.

Versatily:

• Flexible customization.• Large availability accessories range.• Versatility of application, the circuit breaker connections

can be either left or right using the same apparatus and turning just the copper terminals.

• Compact dimensions.• Circuit Breaker removal support always equipped with

wheels.

Environment care

• Manufacturing energy optimization thanks to the circuit breaker components material.

• No use of epoxy resin components.• Use of recyclable material with easy recovery and reuse at

the end of the product life.

VCB0005

VCB0011


ECOSMART VCB L

GENERAL DESCRIPTION

The vacuum circuit breaker type ECOSMART VCB L is manufactured adopting the technique of the separate poles. The poles are manufactured using polyester material that offer lightness and robustness at the same time. Inside each pole is placed the vacuum interrupter that, in this way, it is protected against pollution, humidity, shocks, condensation etc. The operating mechanism is mechanical with springs type with opening and closing operations independents from the operator. The operating mechanism can be operated manually or from remote through a gear motor, opening and closing coil. The operating mechanism closing spring can be charged through the spring charging lever or by the gear motor (supplied upon request). Opening and closing operations are carried out by the available push buttons or via the opening and closing coils actuated from remote.

The key lock, available with key free with circuit breaker in open position, is used to realize the interlock with the line switch disconnector.

The vacuum circuit breaker ECOSMART VCB L is suitable to house current sensors (assembled on the poles) and self-powered protection relay (assembled onboard of the operating mechanism). The vacuum circuit breaker lies on a support frame equipped with wheels to allow its removal from the panel.

The vacuum circuit breaker ECOSMART VCB L is suitable for the following applications:

• Public medium voltage secondary distribution. • Transformers substations.• Hospital.• Residential centers.• Power transformer protection.• Data center protection.• Industries.• Renewable energy plant.

It provides protection for cables, overhead lines, capacitor banks, transformer etc. It is suitable for installation inside the medium voltage panels of the ECOSMART MIX series type CBS, CBSB, CBSA, CBSAB, CB2SA.

VCB0012


ECOSMART VCB L

Main Characteristics

• Stored energy springs lateral operating mechanism (closing spring and opening spring) · Manual and electrical operations.

• Complete O-C-O cycle without reloading the springs.• Long mechanical and electrical life.• High number of operations.• Limited Maintenance.• Vacuum interrupters positioned inside the poles with protection against pollution, humidity, impacts,

condensation.• Flexible in customization.• Large availability accessories range.• Easy installation.• Application, upon request, of current sensors and self-powered protection relay.• Versatility of application, the circuit breaker connections can be either left or right using the same

apparatus and turning just the copper contacts.

ECOSMART VCB L


8. Poles with vacuum interrupters

1 Spring charging lever 2 Closing push buttons 3 Opening push buttons 4 Circuit breaker position 5 Springs status signalization 6 Operations counter 7 Key lock

Main Characteristics

• Stored energy springs lateral operating mechanism (closing spring and opening spring) • Manual and electrical operations • Complete O-C-O cycle without reloading the springs • Long mechanical and electrical life • High number of operations • Limited Maintenance • Vacuum interrupters positioned inside the poles with protection against pollution, humidity,

impacts, condensation • Flexible in customization • Large availability accessories range • Easy installation • Application, upon request, of current sensors and self-powered protection relay. • Versatility of application, the circuit breaker connections can be either left or right using the

same apparatus and turning just the copper contacts.

VCB0004

1 Spring charging lever

2 Closing push buttons

3 Opening push buttons

4 Circuit breaker position

5 Springs status signalization

6 Operations counter

7 Key lock

8 Poles with vacuum interrupters

VCB0004


ECOSMART VCB L

The circuit breaker lies on a metal frame to which the operating mechanism and the three poles containing the vacuum interrupters are fixed.

The metallic frame is always equipped with wheels that allow the circuit breaker removal from the panel.

The operating force is transmitted from the operating mechanism to the poles and the vacuum interrupters via operating levers positioned inside the support frame.

ECOSMART VCB L


Poles

Medium voltage terminals Support frame

Wheels

The circuit breaker lies on a metal frame to which the operating mechanism and the three poles containing the vacuum interrupters are fixed.

The metallic frame is always equipped with wheels that allow the circuit breaker removal from the panel.

The operating force is transmitted from the operating mechanism to the poles and the vacuum interrupters via operating levers positioned inside the support frame

VCB0011

Poles

Medium voltage terminals

Support frame

Wheels


ECOSMART VCB L

ELECTRICAL CHARACTERISTICS

The ECOSMART VCB L vacuum circuit breaker comply with the following IEC standards;

• IEC 62271-100

Mechanical classes Class Notes

Vacumm circuit breaker M1 2000 mechanicals operations

Vacumm circuit breaker M2 10.000 mechanicals operations

T0008

VACUUM CIRCUIT BREAKER

Rated Voltage Ur (kV 12 24

Power frequency withstand voltage 50/60 Hz 1min. Ud (kV) 28 50

Rated lighting impulse withstand voltage Up (kV) 75 125

Rated Frequency fr (Hz) 50/60 50/60

Rated current Ir (A) 630/1250 630/1250

Rated breaking capacity Isc (kA) 16-25 16-25

Rated short time withstand current 1-3 seconds Ik (kA) 16-25 16-25

Operation sequence O - 0,3sec - CO - 3min - CO

Operating time (ms) 50 50

Arcing time (ms) 7/12 7/12

Total breaking time (ms) 57/62 57/62

Closing time (ms) 65 65

T0007


ECOSMART VCB L

OPERATING MECHANISM

The vacuum circuit breaker is equipped with a springs operating mechanism (closing spring and opening spring). It can be operated both manually and electrically. The operating mechanism closing spring can be charged through the spring charging lever or by the gear motor (supplied upon request).

Opening and closing operations are carried out by the available push buttons or via opening and closing coils actuated from remote.

The key lock, available with key free with circuit breaker in open position, is used to realize the interlock with the line switch disconnector.

The operating mechanism gives to the circuit breaker opening and closing cycles independent from the operator. It consists of:

• Closing spring to store the energy for closing operation.• Opening spring to store the energy for opening operation.• Manual lever for closing spring charging.• Mechanical push buttons.• Operations counter.• Spring status signal.• Accessories support plate where it is possible to have: - Opening circuit - Closing circuit - Opening circuit: by opening coil, minimum voltage coil, low energy coil - Closing circuit: by closing coil, motor gear, electronic control card with antipumping device.

The basic circuit breaker is equipped with opening coil auxiliary contacts (6no+6nc) and operations counter. All the other accessories can be supplied upon customer request. The low energy coil (mitop) has to be used only with the self-powered protection relay.

VCB0002

ECOSMART VCB L


Under voltage coil Opening coil Closing push buttons Opening push buttons Closing coil

Springs charging lever Gear Motor The vacuum circuit breaker can be operated both locally and from remote as follow:

Local operations (start position: circuit breaker open): • Grasp the charging lever • Charge the closing springs until the end of the stroke • Push the closing push buttons • The circuit breaker get closed and the opening spring is charged automatically • Push the opening push buttons • The circuit breaker get open with the closing and opening springs

discharged.

VCB0017 VCB0018

VCB0005


ECOSMART VCB L

The vacuum circuit breaker can be operated both locally and from remote as follow:

Local operations (start position: circuit breaker open):

• Grasp the charging lever.• Charge the closing springs until the end of the stroke. • Push the closing push buttons. • The circuit breaker get closed and the opening spring is

charged automatically. • Push the opening push buttons. • The circuit breaker get open with the closing and opening

springs discharged.

ECOSMART VCB L


Under voltage coil Opening coil Closing push buttons Opening push buttons Closing coil

Springs charging lever Gear Motor The vacuum circuit breaker can be operated both locally and from remote as follow:

Local operations (start position: circuit breaker open): • Grasp the charging lever • Charge the closing springs until the end of the stroke • Push the closing push buttons • The circuit breaker get closed and the opening spring is charged automatically • Push the opening push buttons • The circuit breaker get open with the closing and opening springs

discharged.

VCB0017 VCB0018

VCB0005

Springs charging lever Gear Motor

Under voltage coil

Opening coil

Closing push buttons

Opening push buttons

Closing coil

VCB0017 VCB0018

VCB0005


ECOSMART VCB L

ECOSMART VCB L



Remote operations (start position: circuit breaker open): • The closing spring are charged via the gear motor. • Actuate the closing coil • The circuit breaker get closed and the opening spring is

charged automatically • The closing spring is charged by the motor immediately after

the circuit breaker closing. • Actuate the opening coil • The circuit breaker get open with the closing spring charged

and ready for a new closing operation.

ACCESSORIES

Auxiliary accessories are available for the ECOSMART VCB L circuit breaker. All these components enable a high customization level to satisfy the customer’s demand and the most various installation exigencies.

Some of the available accessories are always supplied as standard application. Some others have to be required as are optional. (See table) The selection of the accessories must match with the assembling compatibility that is evidenced by the below wiring diagrams.

Accessories table

Basic SolutionUpon request

T0019

Optional accessories must be selected following the assembling compatibility

Under voltage coil

YU

Low energy coil YLE (mitop)

Auxiliary contacts 6no+6nc

Key lockPush

buttons lock

Mechanical operations

counter

Vacuum Circuit Breaker

Opening coil YO

Second opening coil

YO

Closing coil YC Motor gear

Motor gear electronic

card

VCB0006

Remote operations (start position: circuit breaker open):

• The closing spring are charged via the gear motor.• Actuate the closing coil.• The circuit breaker get closed and the opening spring is

charged automatically.• The closing spring is charged by the motor immediately

after the circuit breaker closing.• Actuate the opening coil.• The circuit breaker get open with the closing spring charged

and ready for a new closing operation.


ACCESSORIES

Auxiliary accessories are available for the ECOSMART VCB L circuit breaker. All these components enable a high customization level to satisfy the customer’s demand and the most various installation exigencies.

Some of the available accessories are always supplied as standard application. Some others have to be required as are optional. (See table) The selection of the accessories must match with the assembling compatibility that is evidenced by the below wiring diagrams.

Accessories table

Vacuum Circuit

Breaker

Opening

coil YO

Second

opening

coil YO

Closing

coil YC

Motor

gear

Motor

gear

electronic

card

Under

voltage

coil YU

Low

energy

coil YLE

(mitop)

Auxiliary

contacts

6no+6nc

Key

lock

Push

buttons

lock

Mechanical

operations

counter

Basic Solution • • • •

Upon request • • • • • • •

Optional accessories must be selected following the assembling compatibility

T0019

VCB0006


ECOSMART VCB L

ECOSMART VCB L


Gear motor Coil

Low energy coil

Motor Control Key lock Card

Auxiliary contacts

Operations counter

EM0056

EM0049

EM0057

EM0058

EM0051

EM0059

EM0139

ECOSMART VCB L


Gear motor Coil

Low energy coil


Auxiliary contacts

Operations counter

EM0056

EM0049

EM0057

EM0058

EM0051

EM0059

EM0139

Gear motor Coil

EM0056

ECOSMART VCB L


Gear motor Coil

Low energy coil


Auxiliary contacts

Operations counter

EM0056

EM0049

EM0057

EM0058

EM0051

EM0059

EM0139

Low energy coil

EM0057

ECOSMART VCB L


Gear motor Coil

Low energy coil


Auxiliary contacts

Operations counter

EM0056

EM0049

EM0057

EM0058

EM0051

EM0059

EM0139

Key lock

EM0139

ECOSMART VCB L


Gear motor Coil

Low energy coil


Auxiliary contacts

Operations counter

EM0056

EM0049

EM0057

EM0058

EM0051

EM0059

EM0139

Operations counter

EM0058

ECOSMART VCB L


Gear motor Coil

Low energy coil


Auxiliary contacts

Operations counter

EM0056

EM0049

EM0057

EM0058

EM0051

EM0059

EM0139

Motor Control Card

EM0049

Auxiliary contacts

EM0059

EM0051

ECOSMART VCB L


Gear motor Coil

Low energy coil


Auxiliary contacts

Operations counter

EM0056

EM0049

EM0057

EM0058

EM0051

EM0059

EM0139


ECOSMART VCB L

PROTECTION AND CONTROL

VCB0012

VCB0015

ECOSMART VCB L



Current sensor Current sensors are available for assembling on each vacuum circuit breaker pole. The current sensors are wired up to the self-powered protection relay assembled onboard of the circuit breaker operating mechanism. The circuit breaker is suitable also for other types of protection relays.(Powered protection relay)

ECOSMART VCB L VACUUM CIRCUIT BREAKER MEDIUM VOLTAGE CONNECTION

The ECOSMART VCB L vacuum circuit breaker is equipped with tinned copper terminals. The round terminals allow the easy circuit breaker connections inside the panel. The terminals are already prepared with drilled holes to facilitate the installation activities. Upper connection terminals Lower connection terminals

VCB0012

VCB0015

ECOSMART VCB L



Current sensor Current sensors are available for assembling on each vacuum circuit breaker pole. The current sensors are wired up to the self-powered protection relay assembled onboard of the circuit breaker operating mechanism. The circuit breaker is suitable also for other types of protection relays.(Powered protection relay)


The ECOSMART VCB L vacuum circuit breaker is equipped with tinned copper terminals. The round terminals allow the easy circuit breaker connections inside the panel. The terminals are already prepared with drilled holes to facilitate the installation activities. Upper connection terminals Lower connection terminals

VCB0012

VCB0015

Current sensor

Current sensors are available for assembling on each vacuum circuit breaker pole. The current sensors are wired up to the self-powered protection relay assembled onboard of the circuit breaker operating mechanism. The circuit breaker is suitable also for other types of protection relays. (Powered protection relay).

The ECOSMART VCB L vacuum circuit breaker is equipped with tinned copper terminals. The round terminals allow the easy circuit breaker connections inside the panel. The terminals are already prepared with drilled holes to facilitate the installation activities.

Upper connection terminals

Lower connection terminals



ECOSMART VCB L

CIRCUIT BREAKER DIMENSIONS

VCB L cubicle positioning

VCB0048

VCB0047 VCB0146


ECOSMART VCB L

EC

OS

MA

RT

VC

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SV

CB

L000

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Standards, designs and specification are susceptible of modification.Please ask for the confirmation of the information given by this catalogue

www.tozziindustries.com

Headquarters: Via Zuccherificio 10, 48123 Mezzano, Ravenna ItalyPhone +39 0544 525011Fax +39 0544 [email protected]

Commercial Department: Via Kennedy 20097 S. Donato Milanese, Milano ItalyPhone +39 02 51621243Fax +39 02 [email protected]

Factory: SS 16 Zona Ind.le Incoronata,71122, Foggia ItalyPhone +39 0881 811411Fax +39 0881 [email protected]

ecosmart vcb l - admin.abc.smadmin.abc.sm/cms/media/www... · tozzi electrical equipment is a firm...

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