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Customised switchgear solutions built to last Medium Voltage Power System Solution

INESING S.P.A. Power System Solution w w w . i n e s i n g . c o m

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INESING S.P.A Power System Solution Co.


The Company INESING has matured the experience, knowledge and professionalism at the highest

level, consolidating its presence in the market for the construction and installation of electrical systems.

Company has dedicated itself to design, supply and start-up complete industrial systems especially

oriented to the generation, transmission and distribution of electric power, is able to deliver

projects and products up to any needs.

INESING has structured its organization in order to respond to customers requirement as extremely

efficient and reliable partner.

INESING is also a wholesale store of switchgear & transformers, able to guarantee a fast and complete

service of installation.

Our headquarter in 6500 sqm (4.000 sqm Built up area and 3.200 sqm offices ) give us the possibility to

provide a wide and diverse variety of products.

INESING has realized different jobs in Europe, Middle East, Africa, Russia in the last 10 years, earning

a leadership role in the field of electric power distribution.

With a new and fast-growing business unit (named “Power System Solution – PSS”) INESING is offering

consultancies and specialized diagnostic services to Power Plants and T&D Utilities, on transformers,

generators, motors, cable and overhead lines. Both in Italy and abroad.

INESING has also another business unit called “Energy System Division” which coordinates projects as a

Global EPC Contractor for power plants (renewable and traditional energy) and substations.

The variety of the jobs and the international market in which INESING works allowed INESING to

achieve the most important certifications issued by recognized national and international entities.

INESING owns indeed the certificates ISO 9001-2008; ISO 14001 and OHSAS 18001 issued by Lloyd's

Register certification body.


Why INESING? We are easy to do business with.

At INESING we’re solely committed to serving the needs of our customers in the

industrial electrical industry. From concept design through to installation and after sales

service, we are confident we have the experience and expertise to exceed your

expectations and ensure you get the best result for your project. How?

Well, put simply, we’re easy to do business with. Combining Partnerships, Agility, Knowledge

and Scalability, INESING offer the European market quality, around-the-clock service that

forms the ultimate choice in our industry.

Partnerships:

When you choose INESING you gain a valuable

industry partner. You gain access to an exclusive

network of quality global suppliers who together with

Inesing’s 5+ branch and regional locations across

Europe and GCC, can achieve an engineered

solution for your medium voltage application.

Providing the perfect balance of knowledge and

experience, a partnership with INESING promises to last

the life of current and future projects, working together

with you to offer complete trust, assurance and peace of

mind.

If it’s Medium Voltage, partner with INESING S.P.A..

Agility:

At Inesing we understand your Medium Voltage

application needs and know that these needs can often

change throughout the life of a project. But with a

seamless combination of local and technical support and

a network of global suppliers, INESING have the agility

to provide real-time solutions that are backed by around

the clock service and support for not only the life of a

project but any future needs as well.

Don’t be caught waiting. Choose INESING and get

the very best in Medium Voltage solutions – day in,

day out, right where you need them.

Knowladge:

If your Medium Voltage application demands a specialist

team of trained project management, design and

engineering professionals, then INESING is the ultimate

choice. Bringing together over 10 years of electrical

industry experience, Inesing’s dedicated Medium Voltage

project team promises to deliver customiseable solutions

from concept design through to installation and project

management.

We know that you have a range needs and that these needs

can change but calling on our vast industry experience we

know how to meet them. When it comes to Medium Voltage,

look no further than INESING.

Scalability:

With all the scale of a large multi-national company,

INESING maintain a premium level of customer service

and attention to detail no matter how big or small your

Medium Voltage project.

Be it our 100+ expert staff, our 5+ branch and regional

locations, or our extensive network of global suppliers,

when you deal with INESING you will receive all of this

combined knowledge and expertise in an ‘easy to do

business with’ solutions with a local focus!

INESING MEDIUM VOLTAGE SWITCHGEAR OVERVIEW

Suitable for 3.3kV, 7.2kV, 12kV, 24kV, 36kV.

AIS up to 24kV and 25kA 1 sec

Modular air insulated switchgear design allows you to

create rational, economical and custom-made

combinations of medium-voltage Switchgears produced

under ABB license.

Compact Air insulated Switchgear (CAIS)

AIS metaleclosed fully withdrawable up to 24kV and 25kA 1s A family of air-insulated medium voltage switchgear solutions for

indoor installations.

Switchgear with withdrawable CB’s up to 36kV and 31,5kA 1s

Our new AIS withdrawable and extendible switchgear for indoor installation.

Withdrawable Switchgear – (WIS)

Modular Air Insulated Switchgear (AIS)


Applications: Power stations generate electrical power, with voltages up

to 500,000V, which is transmitted to transformer stations

and dispersion stations. These substations distribute

medium voltage above 1kV to 36kV and it is here that a

number of INESING Medium Voltage Switchgear cubicles

can be used. A medium-voltage grid starts from every

substation and supplies a large area with medium-voltage.

Wherever medium-voltage enters residential areas,

industrial production companies, mining sites, data

centres, rail, hospitals and more, there is a medium

voltage cubicle fulfilling four essential functions.

1.POWER SUPPLY: the network distributor’s grid is

branched off to allow switching.

2.SECURITY: the installation is secured with a load break

switch with HRC fuses, or by a load break switch with a

safety relay.

3.MEASUREMENT: the energy consumption is measured on

the high-voltage, or low-voltage side.

4.TRANSFORMATION: medium-voltage is transformed into

low-voltage (1,000V-400V-230V).

INFRASTRUCTURE

The Power Grid

CO-GENERATION MARKET GARDENING

CATERING INDUSTRY / SHOPPING CENTRE

RESIDENTIAL AREAS

INESING S.P.A.

Medium Voltage Switchgears

DISPERSION

COMMERCIAL BUILDINGS INCLUDING

HOSPITALS AND DATA CENTRES

PRODUCTION

INDUSTRY


INESING MEDIUM VOLTAGE SWITCHGEAR OVERVIEW

DESIGN PHILOSOPHY AND APPLICATIONS

User-friendliness, safety and care far the environment were

the main mativators in the selection of INESING Medium

Voltage Switchgear. INESING can provide “made-to-

measure” solutians far oll your medium-voltage needs.

INESING Medium Voltage Switchgear offers a wide range

of applications that can be used worldwide in many

industries. Cubicles can be used with distribution and

dispersion switchgear, electrical sub-stations and

medium-voltage engines, wind generators, cogeneration,

and much more.

The INESING Medium Voltage Switchgear range provides a

solution for oll your needs and demands as it can replace

obsolete installations, extend existing installations, and it is

also perfectly suited for brand new installations.

The INESING Medium Voltage Switchgear cubicles are a

madular concept based on the “building blocks” principle,

which means that cubicles are produced in series. As a

result these products meet the highest technical standards in

a rational and economically sound way. The combinatian of

cubicles is unlimited. Very camplex diagrams of distribution

and transformer switchgear can be campiled through this

extensive spectrum of possibilities.

Cubicles contain standard functional interlocks which allows for

effortless application and installation in most consumer work

spaces. As a result, capacity loss will be minimal. Additionally,

the cubicles have been fitted with a system for pressure release

which shields the user from the consequences of an internal

arc.

7 INESING S.P.A. Power System Solution

w w w . i n e s i n g . c o m

INTERNAL ARC MITIGATION OPTION WITH BUILT-IN ARC-KILLER

A short-circuit or another malfunction can create an

internal arc. An internal arc in a Medium Voltage cubicle

could severely damage the installation and possibly injure

the operator.

INESING Medium Voltage Switchgear cubicles are

designed to mitigate the creation of internal arcs and

therefore protect both the operator and the installation.

Through a strategic pressure release system, the internal

arc is restricted to the compartment where it originated and

it does not spread towards the operator or to other

compartments. The cubicles are specifically designed to

minimize the consequences of an internal arc. All provided

cubicles are fitted on the rear side with overpressure valves

pointing downward as a standard.

INESING Medium Voltage Switchgear cubicles have been

tested with these specifications at independent, and

accredited testing solutions (for exampleCESI - KEMA).

The load break switches have been tested according to

IEC standards and consequently, all INESING Medium

Voltage cubicles are internal arc resistant.

Protect your cubicles, infrastructure and your staff against the

consequences of an internal arc. The built-in Arc-Killer

extinguishes an arc in less than 50ms.

The INESING Medium Voltage Switchgear range includes

the Arc-Killer SV-25 and SV-53, a system for detecting and

extinguishing an internal arc. The Arc-Killer extinguishes

the arc by directing it to a metal earthed short circuit. The

arc is extinguished in less than 50ms.

Our modules are metal enclosed cubicles combined with a

shaft at the rear end. The shaft absorbs any gasses (in case

of an internal arc) that escape through the overpressure

valves. As a result, the expansion of hot gasses in a room

can be reduced to an absolute minimum. INESING Medium

Voltage Switchgear cubicles offer protection against an

internal arc classification IAC category B, FLR 25 kA 1 s.

(F=frontal, L=lateral, R=rear).

As a result, the operator is protected against the

consequences of an arc whether they stand in front of the

switchboard, next to it or behind it.

Without Arc-Killer With Arc-Killer

The patented SV-25 and SV-53 Arc-Killer takes safety to a new level. Not just the operator and the environment are

shielded from harm, but the super-swift arc extinguishing system allows cubicles to be back in operation very quickly

in case of an internal fault.

What’s more, the Arc-Killer’s improved security features place less strict demands on the installation room.

As such, the Arc-Killer couples security and operational safety with flexible room demands.


AIR INSULATED SWITCHGEAR (AIS)

A MODULAR CONCEPT COMBINING ALL MEDIUM-VOLTAGE FUNCTIONS.

Modular design allows you to create rational, economical and custom-made combinations of medium- voltage cubicles

with a rated voltage of up to 36kV.


COMPARTMENTS

SWITCHGEAR COMPARTMENT

In this compartment, the gas filled load break switch is

double sealed, which acts as the physical separation between

the busbar set and the cable compartment. The switch has

two functions: it connects or interrupts the electrical current

between the high voltage cables and the busbar.

BUSBAR COMPARTMENT

The busbar compartment is located in the upper part of

the cubicle and behind the low-voltage compartment. The

modular busbar set is manufactured from specially provided

electrolyte F25 copper of 60 x 10mm with n = 5mm (800A).

Standard as well as 1250A option is available.

Several cubicles are connected through the bar set

compartments. Hexagonal bolts connect the busbars

to the upper contact surfaces of the load break switch.

CABLE COMPARTMENT

The cable compartment is located behind the interlocked,

removable door of the cubicle. This part of the field receives the

cable(s) and contains the necessary equipment to connect the

cable(s). The earthing switch is installed below the load break

switch on the right side, ensuring a “visible earthing” when the

earthing switch is closed. In a cubicle, the cables are connected to

the contact points below the load break switch. The cables of the

cubicles are connected to the lower fuse base side. This type of

cubicle also has an additional auxiliary earthing switch to divert any

residual current. This type cubicle have the earthing switches

located in the cable compartment below. The removable door, the

sectional floor panels which house the necessary conductive rubber

for the cables, and the cable supports all simplify the cable

connection.

LOW-VOLTAGE COMPARTMENT

The drive mechanism that controls the load break switch and the

earthing switch is fitted with the synoptic diagram and is located

behind the front panel. Several accessories, such as the auxiliary

contacts, switch-on or switch-off coils, and minimum voltage relays

are also located in this compartment. Any control with the

necessary electrical switchgear, a control and clamp strip are also

installed in this compartment. The compartment is easily accessible

by removing the front panel.


SWITCHGEAR RANGE

TECHNICAL SPECIFICATIONS OF MODULES

Rated Voltage kV 12 12* 24

Impulse withstand voltage 1.2 / 50 μs

- To earth and between phases kV 75 95 125

- Over the insulated distance kV 85 110 145

Power frequency withstand voltage:

- To earth and between phases kV 28 38 50

- Over the insulated distance kV 32 45 60

Rated frequency

Rated current

Rated short-time current 1s.

Rated peak value of the current

Breaking capacity (Class E3)

- Mainly active load

- Closed loop

- Load cable charging

- Making current

- Earth fault

- Earth fault cable charging

Internal arc 1s.

Degree of protection

Mechanical durability c/o

Standards

Certificates

25 25

kA 63 63

A 800/1250** 800/1250**

800 800

A 18 18

kÂ 63 63

A 100 100

30 30

kA 16 16

IP4X

1000

IEC 62271-100, IEC 62271-1, 62271-102,

-103, -105, 62271-200

and IEC 61243-5

KEMA / CESI

50/60 50/60 50/60

A 8 0 0 / 1 2 5 0 * * 8 0 0 / 1 2 5 0 * * 6 3 0

Notes: * Utilities Specifications

** According to IEC 62271-103, Class E1


WITHDRAWABLE SWITCHGEAR (WIS)

A family of air-insulated fully withdrawable medium voltage switchgear solutions for indoor installations.

WIS modular design allows you to create rational, economical and custom-made combinations of medium voltage cubicles (up to 36kV).


TYPE TESTS WIS switchgear solutions are all fully type tested according to

IEC 62271-200:

• Short time and peak withstand current

• Temperature rise and main circuit impedance

• Dielectric test on main and auxiliary circuits

• Making and breaking capacity of the circuit breaker within

the panel

• Earthing switch making capacity

• Mechanical operations

• Internal arc fault (IAC classified: AFLR, 31.5A/1s)

Availability and partitionWIS switchgears are designed in compliance to availability

classes LSC2B and partition class PM according to

IEC 62271-200.

The switchgear compartments do not need any tools for

opening. Interlocks allow access only when the corresponding

high voltage parts are dead and earthed. Metallic shutters and

partitions segregate the compartments from each other. When a

compartment is opened all other panels in the installation and

all cable termination compartments (including that in the panel

concerned) remain in operation..

Internal arc fault test, 31.5kA/1s


COMPARTMENTS

SWITCHGEAR COMPARTMENT

In this compartment, the withdrawable magnetic driven vacuum

circuit breaker switch, acts as the physical separation between

the busbar set and the cable compartment. The switch has two

functions: it connects or interrupts the electrical current between

the high voltage cables and the busbar.

BUSBAR COMPARTMENT

The busbar compartment is located in the back side of the

cubicle and behind the low-voltage compartment. The modular

busbar set is manufactured from specially provided electrolyte

F25 copper. Several cubicles are connected through the bar

set compartments. Hexagonal bolts connect the busbars to

the upper contact surfaces of the fixed contacts in the

insulators.

CABLE COMPARTMENT

The cable compartment is located behind the interlocked,

removable door of the WIS cubicle. This part accepts the

cable(s) and contains the necessary equipment to connect the

cable(s). The earthing switch is installed below the circuit

breaker switch on the back side, ensuring a “visible earthing”

when the earthing switch is closed. The door and the sectional

floor panels, which house the necessary conductive rubber for

the cables, and the cable supports, all simplify the cable

connection.

LOW-VOLTAGE COMPARTMENT

The protection relays that controls the circuit breaker and

accessories, such as the auxiliary contacts, and minimum

voltage relays, are also located in this compartment. The

compartment can be accessed very easily by opening the

compartment door.


WITHDRAWABLE CIRCUIT BREAKER WITH OPTIONAL EARTHING SWITCH

Application

Incoming/outgoing feeder with optional earthing switch.

Specifications & Dimensions

Rated current A 630 - 1250 16002000

Height mm 2200 2200

Height with arc venting shields mm 2500 2600

Height with gas exhaust duct mm 2600 2600

Width mm 650/800 800

Depth mm 1260 1260

Possible Configurations


INCOMING FEEDER CONNECTION PANEL

Application

Incoming cable connecting metering with optional earth switch, CT’s and VT’s.

Specifications & Dimensions

Rated current A 630 - 1250 16002000

Height mm 2200 2200

Height with arc venting shields mm 2500 2600

Height with gas exhaust duct mm 2600 2600

Width mm 650/800 800

Depth mm 1260 1260

Possible Configurations


... BRINGS POWER

ALL OVER THE WORLD…

INESING FACTORY –ITALY Via dell’Industria,18/B24040Casirate D’Adda (BG) Tel/Fax: +39 0363 326548

Email: [email protected]

INESING INTERNATIONAL – QATAR Suhaim Bin Hamad St., Al Sadd

P.O.Box 6255 Doha - Qatar Tel/Fax. +974 444 777 38

mailto:[email protected]

cmust edomiu oltcahggear sol ns built to lastti€¦ · voltage cubicles are internal arc...

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