8bk80 modified

Prepared by: PTD-M/BD

8BK80 PANELS


8BK80

8BK80 air-insulated, metal-cladMedium Voltage Switchgear

Prepared by: PTD-M/BDNote: Special Execution on request

Up to 3150A

3.6 kV

Up to 4000A

10kV

40kVp

26.3/31.5/44kA

66/80/110kAp

26.3/31.5/44kA

Nominal Current of Feeders

Rated Continuous Current of Busbar

Rated Power freq withstand voltage

Rated Lightning Impulse withstand Voltage

Rated Short Circuit Breaking Current

Rated Short Circuit Making Current

Rated Short time withstand Current (3sec)

12/ 38/ 95 kV BIL available on request

Product Rating

7.2kV

20kV

60kVp

26.3/31.5/44kA

26.3/31.5/44kA

66/80/110kAp

Up to 3150A

Up to 4000A

12kV

28kV

75kVp

26.3/31.5/44kA

26.3/31.5/44kA

66/80/110kAp

Up to 3150A

Up to 4000A


Circuit Breaker

Siemens Make Vacuum Interrupter

Tulip contacts- Better current

carrying capacity

Improved contact arm design

Enclosed pole- increased reliability

Sealed for life gear box ensures

reliability of mechanism


•Mechanism kinematics and interrupter force designed to ensure smooth operation

•Tested for Mechanical endurance of 10,000 operations (M2 class)

•Mechanical de-latching for spring charging motor ensures motor protection even under cut off switch failure

•Low arc energy with Vacuum technology means less erosion of contact & longer life

•Constant dielectric strength for a long period of time

Vacuum Circuit Breaker


Use of maintenance-free Siemens Vacuum Circuit Breaker

on withdrawable truck means low life cycle costs.

Vacuum Circuit Breaker


CB Chamber

All operations behind closed doors

Ramp for floor leveling

Truck type design – No CB handling

trolley

VCB truck earthing even in test

condition

Tested for 1,000 insertion &

withdrawals of CB truck as against 25

specified in IEC


CB chamber

Busbar chamber shutter: Gravity

operated

Cable chamber shutter: Spring

operated

Padlocking of shutters

Independently lockable shutters

Guide rails for better alignment


Busbar chamber

Better heat dissipation due to hollow,

triangular main busbar & round feeder

connections

Easy assembly of busbars at site

Design w/o sharp edges: reduced

electrical stress

Design facilitating more cooling air

Patented design of busbars with

increased capacity for heat dissipation

Reduced no. of joints: better thermal

capacity* Sleeving & BB shrouds optional


Alternative 1:-

Panel standard depth of 1750mm containing:

a) 1 set of CT

b) 2 runs of cable termination

More equipments in the standard cable chamberMore equipments in the standard cable chamber Reducing the depth of typical Incomer panels thus saving vast Reducing the depth of typical Incomer panels thus saving vast spacespace Cable chamber with three different alternatives/configurationCable chamber with three different alternatives/configuration

Alternative 2:-


a) 2 sets of CTs

b) earth switch

c) draw out PT from rear*

d) 2 runs of cable termination

Cable chamber

Withdrawable PT on VCB trolley also available


Cable chamber

Alternative 3:-


a) 2 sets of CTs

b) Earth Switch

c) 3 runs of cable termination

Alternative 4:-


a) 2 sets of CTs

b) Up to 4 runs of cable termination


End terminations eliminated by direct cable termination on C.T: less overheating problems

First set of C.T is sliding: Easy removal for maintenance

Both secondaries of C.Ts can be accessed easily

Cable chamber

No need to disconnect the cable for removal of first set of CT


•For additional equipments/cables rear boxes of different sizes

are available: enhanced flexibility

•Full Height rear boxes are provided for the utter most safety of

the operator

•Cable size up to 630sqmm for three core and 1000 sqmm for

single core cable can be accommodated

•LV Box Height adjustable as per customer requirement

•Easy accessibility of both the CTs in case of two CTs for ease in

maintenance

Customer Benefits from cable chamber


7.2 kV 12 kV

Available executions

3.6 kV

Note: Special Execution on request

Circuit breaker panel

Metering panel

Bus-Coupler +Adaptor

Cabling panel

Incoming/Outgoing in same panel


8BK80: Benefits

1. Peace of Mind.

2. Saves Lives.

3. Increases Productivity.

4. Saves Money.


8BK80: Benefit no.1

Peace of Mind


Fully Type tested product

Di-electric tests

Temperature rise test

Short time withstand

Short circuit test & test duty

Double earth fault test

Mechanical endurance test

Ingress Protection Test

Cable charging

Capacitor Switching

STC/Making/Mechanical Operation of

Earthing switch

Internal Arc: 12kV 31.5kA for 0.1sec

Fulfilling all the mandatory type tests requirements of new IEC 62271-200/100

Both on main circuit and auxiliary circuit

STC test on main circuit, earth circuit and on sliding contact of earth circuit

Product is tested for solidly as well non-solidly earthed system

Separately tested for all three chambers


Peace of Mind: How?

Easy rack-in / rack-out of switching devicethrough ramps and truck


89290

42821

111

4213

5 32

416

311

479

245

86

22

10

3814

6

> 35000 8BK80 Panels in service worldwide

NepalBhutanSri-LankaBangladeshMaldivesMauritiusOmanQatarKuwaitJordan

KenyaZambiaEthiopiaTanzania

Brunei

A true international switchgear

Peace of Mind: How?


Well Documented Quality Systems and Procedures

Peace of Mind: How?


Peace of Mind 1.1 Factory assembled, fully type tested switchgear as per IEC 62271-200.

1.2 Testing of VCB inside the panel.

1.3 Preventive mechanical interlocks.

1.4 Siemens Vacuum switching technology.

Benefit Features

Peace of Mind: How?


Peace of Mind 1.5 More tolerant to floor levelling.

1.6 Quality management according toISO 9001-2000

1.7 Design based on global best practise sharing and experience.

1.8 Routine Testing on 100% manufactured panels

1.9 Siemens Guarantee.

Benefit Features

Peace of Mind: How?


8BK80: Benefit no.2

Saves Lives


Forecast: Saves Lives

How much: Even one life!

How soon: As soon as you energize Siemens 8BK80 switchgear


All operations behind closedDoor!

1. All switching operations including emergency manual

operations.

2. Operation of Earthing Switch.

3. Rack-in / rack-out operation of VCB truck.

4. Emergency manual charging of VCB operating mechanism.

Operator safety:

Saves Lives: How?


Front door interlocks as per IEC 62271-200

1. Racking of VCB truck from Test to Service position not possible until the front door is closed and locked.

2. Front door cannot be closed and locked until the LV control plug is securely connected.

3. Front door cannot be opened until the VCB is switched OFF and racked out in Test position.

Operator safety:

Saves Lives: How?


Partition class: PM

1. Earthed metallic shutters and partitions ensure partition class PM.

2. Class PM ensures no electric field in the opened compartment and no electrical field change in the adjacent compartments.

3. Thus partition class PM ensures safe maintenance when the switching device chamber is opened while keeping the bus bars as well as cables under charged conditions.

8BK80: Safest Switchgear

Saves Lives: How?


Classification of the 8BK80 according to IEC 62271-200

Construction and design

Partition class PM (metallic)

Loss of service continuity category LSC2B

Compartment accessibility (standard)

– Bus bar compartment Tool-based

– Switching-device compartment Interlock-based

– Low-voltage compartment Tool-based

– Connection compartment Tool-based

Saves Lives: How?


Compartmentalisation features

Metal enclosed switchgear – Designs acc. to Part 200

Access control Ÿinterlock-controlledŸprocedure-basedŸtool-based

Accessible compartment

Loss of service continuity LSC 1 LSC 2A LSC 2B

Non- accessible compartment

Partition class PM (metal) PI (non-metal)

Insulation medium ŸAmbient airŸFluid (gas or liquid)

Internal Arc Classification

Compartmentalisation features

Metal enclosed switchgear – Designs acc. to Part 200

Access control Ÿinterlock-controlledŸprocedure-basedŸtool-based

Accessible compartment

Loss of service continuity LSC 1 LSC 2A LSC 2B

Non- accessible compartment

Partition class PM (metal) PI (non-metal)

Insulation medium ŸAmbient airŸFluid (gas or liquid)

Internal Arc Classification IAC A FLR …kV…kA for …sec

Maintainability

Service continuity

Operator’s safety

Purpose

Classification based on purpose

Classification As per IEC 62271-200


Internal arc classification

Classification IAC

Accessibility Type A

– Front Accessible

– Rear Accessible

– Lateral Accessible

Test current kA 31.5

Test duration s 0.1

Classification of the 8BK80 according to IEC 62271-200

Tested separately for each compartment i.e. BB, CB and cable compartment

Saves Lives: How?


• Safety of operating personnel ensured by tests for

verifying the internal arc classification.

• Internal arc tests in accordance with IEC 62271-200,

Annex A.

• The switchgear complies with criteria 1 to 5 specified in

the mentioned standards for the basic version up to 31.5

kA (IAC 31.5 kA 0.1 sec. AFLR).

Internal arc classification

Saves Lives: How?


Class A–Criterion 1

Correctly secured doors and covers do not open. Deformations are accepted conditionally.

–Criterion 2No fragmentation of enclosures occurs within the time specified for test. Projections of small parts up to 60 g are accepted.

–Criterion 3Arcing does not cause holes in the accessible sides up to a height of 2 m.

–Criterion 4Indicators do not ignite due to the effect of hot gases. Ignition caused by glowing particles rather than hot gases is allowed. Ignitions as a result of paint or sticker burning are also excluded.

–Criterion 5The enclosure remains connected to its earthing point.

8BK80: Complies with All Criterion for Internal Arc

IEC 62271-200 Definitions of the classification criteria


Successfully Internal Arc Tested - If this failure happened in your 8BK80, no one would even be hurt.

Saves Lives: How?


Vacuum Circuit Breaker means no explosion is possible.

Saves Lives: How?


Which interrupter would you prefer?

Vacuum interrupters: no seals and gaskets &hence no vacuum loss.

Saves Lives: How?


1. Arc medium free from toxic by-products2. Does not explode.3. Environment friendly and compatible.

Saves Lives: How?


Saves Lives 1.1 All operations behind closed front door.

1.2 Front door interlocks with VCB.

1.3 Partition class PM.

1.4 Internal Arc Classification switchgear: IAC A FLR 31.5kA for 0.1sec

Benefit Features

Saves Lives: How?


Saves Lives 1.5 Siemens vacuum switching technology.

1.6 Secured earthing of switching device in Service and Test position.

Benefit Features

Saves Lives: How?


8BK80: Benefit no.3

Increased Productivity


Loss of Service Continuity category LSC2B-PMMaintenance in switching device compartment

possible without de-energising the corresponding cable connections and bus bars.

Metallic and earthed shutters and partitions. Safe to touch

Increased Productivity: How?


Use of maintenance-free Siemens Vacuum Circuit Breakermeans no interruption in power supply.



IncreasesProductivity

1.1 LSC2B-PM Switchgear.

1.2 Use of Vacuum switching technology.

Benefit Features



8BK80: Benefit no.4

Saves Money


Effect On Floor Space

C.B Chamber

CableChamber

Cutout for Power Cable

C.B Chamber

CableChamber


C.B Chamber

CableChamber


C.BChamber


CableChamber

C.BChamber


CableChamber

C.BChamber


CableChamber

I/C OG1 OG2 I/C OG1 OG2

Saving in space of

1.44sqm for

3 panels

2 Sets Of CTD/O PT3 Runs of Cab

1Sets Of CT2 Runs of Cab

1 Sets Of CT2 Runs of Cab 2 Sets Of CT

D/O PT3 Runs of Cab

1 Sets Of CT2 Runs of Cab

1 Sets Of CT2 Runs of Cab

Presently 600 mm rear box

Saves Money: How?


Use of maintenance-free Siemens Vacuum Circuit Breakeron withdrawable truck means

low maintenance costs.

Saves Money: How?


Use of maintenance-free Siemens Vacuum Circuit Breakermeans less life cycle cost.

Saves Money: How?


Vacuum remainsconstant over time

A vacuum is a non-deteriorating extinguishing medium; no maintenance is required.

Saves Money: How?


Oxidization-free contactsin vacuum

Oxidized contacts require maintenance.

Saves Money: How?


OilOil

SF6SF6

VacuumVacuum

Breaking Current, kABreaking Current, kA

Low arc energy with vacuum technology; Very less erosion of contacts.

Saves Money: How?


Faster Installation: Foundation Plan

C.BChamber


CableChamber

1750

162

1030

400800

476

388

Only three fixing holes are required for mounting of the panel

Saves Money: How?


Switchgear installation, operation and maintenance without any special tools and tackles means

low life cycle cost.

Saves Money: How?


Reliable After Sales Service- Reduced downtime

Saves Money: How?


Saves Money 1.1 Siemens Vacuum Technology: Less maintenance cost.

1.2 Faster Installation: Less installation cost.

1.3 Less total life cycle cost.

1.4 Use of recyclable material: saves money and environment

1.5 More equipment in same depth: reduced dimensions of room means less construction cost

Benefit Features

Saves Money: How?


8BK80: Benefits’ summary

1. Peace of Mind.

2. Saves Lives.

3. Increases Productivity.

4. Saves Money.


•Less Maintenance •Less Space

•Less Civil Work

Less Installation Time

•Energized Busbars during Maintenance

•Faster Maintenance

Safest switchgear

AIS for the 21st CENTURY

8BK80

Customer Benefits: Summary


One word says it all!

SIEMENS

35 Years of Experience in Vacuum Technology


THANK YOU

8bk80 modified

Documents

standard cable chamber

cable termination page

ptdmbd product rating3

cable termination alternative

current rated short

vast space cable chamber

current rated short

better alignment page