air+insulated+indoor+switchgear

8/8/2019 Air+Insulated+Indoor+Switchgear

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Air Insulated Indoor Switchgear

Cubicle VHA 36 with HPA circuit breaker for 36 kV and 24 kV


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2

2 ABB

Advantage ABB

120 years of technology and innovation

Unparalleled domain competence

A vast global experience

Total solution provider

Large installed base

Environment-friendly technologies

ABB is a global leader in Power and Automation technologies

that enable utility and industry customers to improve

performance while lowering environmental impact. The ABB

Group of companies operate in around 100 countries.

In India, ABB serves customers with the complete range ofpower and automation technologies. The company has a vast

installed base, extensive manufacturing facilities and a

countrywide marketing and service presence.

The Power Technologies division offers electric, gas and water

utilities as well as industrial and commercial customers a wide

range of products, systems and services for power generation,

transmission and distribution. ABBs turnkey solution

capabilities in the sector range from Electrical Balance of Plant

(EBOP) for power plants, bulk power transmission, substations

and complete electrification to utility automation and

distribution systems.

The product offering covers a wide spectrum of technologies

across the entire voltage range including indoor and outdoor

circuit breakers, air and gas insulated switchgear,

disconnectors, capacitor banks, reactive power

compensators, power transformers, distribution transformers,

instrument transformers, Compact Substations (CSS) and

Ring Main Units (RMU).

ABB a global technology leader Air insulated indoor switchgearCubicle type - VHA 36

Designed and type tested to meet

IEC 60298 & 60694 / IS: 13227

Fully compartmentalised construction with IP4X degree of

protection externally and IP2X between compartments

Independent exhaust vent for all compartments

Integral earthing switch (optional)

Breaker compartment

Cassette mounted breaker placed on elevated level with test

position of breaker behind closed door

Interlocks :- Racking in/out of breaker from test to service position and

vice-versa with cubicle door closed only

- To prevent racking in/out of breaker, when

breaker is in closed position

- To prevent door from opening when breaker is in

service position

Multiple guides for safe and enduring

alignment of fixed & moving power contacts

Live parts covered by automatic shutters when breaker is

racked out

Provision for padlocking of CB compartment door


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ABB 3

Metering compartment

Adequate space for protection and metering

equipment, control switches, lamps, etc.

Apparatus customised as per requirement

Cable & Current Transformer (CT)compartment

Potential Transformer (PT) compartment

Withdrawable line PT provided in the breaker panel

Removable fuses mounted on the PT

Safety shutters between PT and cable compartment close

automatically on PT withdrawal

Busbar compartment

Tubular conductors fixed on through bushings

Spacious busbar compartment for adequate

air clearance

Option for busbar insulation

Option for shrouds on joints

Slip-on CTs

Spacious compartment to accommodate

1 set of CTs and 2 runs of cables option of rear extension

for extra CTs/cables

Adequate height for cable termination

Access to cable terminals provided from rear of the panel


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4 ABB

Commitment to quality and sustainability

Description Unit Rating

Rated voltage kV 24 36

Rated frequency Hz 50

Rated busbar current A 630, 1250, 1600, 2000, 2500

Short time withstand current kA (3 secs) 26.3

kAp 100

Insulation levels kVrms/kVp 50/125 70/170

Width x Depth x Height mm 1216 x 2300 x 2500

Weight with circuit breaker (approx.) Kg 1500

Degree of protection

Enclosure IP4X IP4X

Within the switchgear IP2X IP2X

General arrangement drawing VHA 36

Dimensions in mm

ABB Indias manufacturing facilities conform to the highest quality standards and environment norms.

These products are manufactured at ABBs works in Nashik which has the following certifications.

ISO 9001 for quality standards

ISO 14001 for environment standards

ISO 18001 for occupational health and safety standards

Technical details


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ABB 5

Technical details

Description Unit Rating

Rated voltage kV 24 36

Insulation levels kVrms/kVp 50/125 70/170

Normal current (400C amb.) A 1250, 1600, 2000

Breaking capacity kA 26.3

Making capacity kAp 66

Short time withstand current kA 26.3 for 3 sec.

Gas pressure bar (abs) 3 - 3.5

Opening time ms 36 - 45

Arcing time ms 15

Total break time ms 60

Making time ms 75

Operating sequence - 0 - 3 min - CO - 3 min - CO

0 - 0.3 sec - CO - 3 min - CO

Weight (approx.) Kg 300

Salient features

Sulphur Hexafluoride (SF6) used as insulation and arc

interruption medium

Arc control and extinction achieved by puffer principle

Operationally safe and reliable across a wide range of

ambient temperatures (50 to 400C)

Capable of interrupting small magnetising and capacitive

currents

Features of operating mechanism:

O-C-O operation without recharging

Closing spring charged by motor in less than 15

seconds

Electrical anti-pumping

Provision for manual recharging

Synchronisation and fast auto-reclosure duty

Indoor switchgear, circuit breaker type HPA


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1VDS22001-YN/Re

v.A,2

005-07

ABB LimitedMedium Voltage Equipment

Street No. 17MIDC, SatpurNashik 422 007Tel: +91 253-2351095 98Fax: +91 253-2351260

Exports Marketing Office:ManejaVadodara 390 013Tel: +91 265-2638930Fax: +91 265-2638908

NBCC Tower4th FloorNo. 15, Bhikaji Cama PlaceNew Delhi 110 066Tel: +91 11 26186000Fax: +91 11 26197592/84035

4th FloorNo. 9Elgin RoadKolkata 700 020Tel: +91 33 22832906/8Fax: +91 33 22832990

ABB HouseDr. S B PathBallard EstateMumbai 400 038Tel: +91 22 56318231 39Fax: +91 22 56318276/77

Embassy Star, 1st FloorNo. 8, Palace RoadVasanth NagarBangalore 560 052Tel: +91 80 22949779Fax: +91 80 22949808

Century PlazaNo. 3C, 3D & 3F, 3rd Floor561 / 562, Anna SalaiTeynampet (Mount Road)Chennai 600 018Tel: +91 44 24340201Fax: +91 44 24340282

Vandana House1st FloorG E Road, RamkundRaipur 492 001Tel: +91 771 5060816-8Fax: +91 771 5053391www.abb.co.in

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