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UniGear type ZS1Medium voltage, arc-proof, air-insulated,metal-clad switchboard

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8

10

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2

3

4

UNIGEAR TYPE ZS1

UNIGEAR TYPE ZS1 - DOUBLE LEVEL

UNIGEAR TYPES ZS1/ ZVC - COMBINATION

TECHNICAL DATA

4

IF BT R RM M IFD IFDM

UNIGEAR TYPE ZS1

UniGear is the new name for the well-establishedZS1 family of switchboards.Apart from still covering the previous fields of ap-plication, this new version of the product offers anunequalled range of new units and functions.Since its introduction in 1986, more than 50,000units have been put into service worldwide andtoday, thanks to its continual development, we arepleased to present the latest result of ABBs com-petence in the field of medium voltage metal-cladswitchboard technology.UniGear type ZS1 is now part of the ABB UNIqueair-insulated switchboard family.

Designed to offer

Flexible applications

Complete range of units and apparatus

Service continuity

Personnel safety

Simple maintenance

Efficient use of space

Easily built-up modular solutions

Full access from the front.

Typical units

IF Incoming/outgoing feeder

BT Bus tie

R Riser

RM Riser with measurement

M Measurement unit

IFD Direct incoming feeder

IFDM Direct incoming feeder with measurement

5

VD4

1

V-ContactVM1

HD4

Rated voltage

Rated insulation voltage

Rated power frequency withstand voltage

Rated lightning impulse withstand voltage

Rated frequency

Rated short-time withstand current

Peak current

Internal arc withstand current

Main busbar rated current

Branch connection rated current 1)

Branch connection rated current

with forced ventilation

24

24

50

125

50-60

25

63

25

2500

630

1250

1600

2000

2300

2500

17.5

17.5

38

95

50-60

40

100

40

4000

630

1250

1600

2000

2500

3150

3600

4000

12

12

28

75

50-60

50

125

40

50

4000

630

1250

1600

2000

2500

3150

3600

4000

7.2

7.2

20

60

50-60

50

125

40

50

4000

630

1250

1600

2000

2500

3150

3600

4000

kV

kV

kV 1min

kV

Hz

kA 3s

kA

kA 1s

kA 0.5s

A

A

A

1) All ratings are given for 40 C and 50 Hz.

Electrical characteristics

Apparatus range

The vacuum circuit breakers canalso be equipped with the mag-netic actuator operating mecha-nismThe switching, latching and re-lease functions are integrated in themagnetic actuatorAll the functions (release, operat-ing motion, energy storage and in-corporating in built watchdog func-tionality) are operated by the inte-grated electronic controllerEquipped with multi-voltagepower-supply a.c. and d.c.

Optimal solution for motor starters,power-factor correction capacitorbanks and transformer feeders upto 12 kVFitted with medium voltage fusesaccording to DIN and BS StandardsPossibility of integrating a single-phase voltage transformer to sup-ply the control circuitsAvailability of operating mechanismwith electrical or mechanical latch-ingEquipped with multi-voltage power-supply a.c. and d.c.

Circuit-breakers for all fields ofpower distribution applicationsPole in SF6 with autopuffer break-ing systemThe combination of compressionand self-blast techniques means thebest performances can be obtainedat all current valuesWithstanding of the insulation volt-age and breaking capacity up to30% of the rated breaking capacityeven at zero relative pressureThe poles can be fitted with gaspressure control device.

Circuit-breakers for all fields ofpower distribution applicationsVacuum interrupter with axial mag-netic flow breaking systemEven distribution of the meltingpoints over the whole surface of thecontacts means the best perform-ances can be obtained at all cur-rent valuesThe epoxy resin poles protect theinterrupters from any physical andelectrical damage.

SF6 circuit breakers

Vacuum contactorsVacuum circuit breakersMagnetic actuator

Vacuum circuit breakersSpring actuator

6

UNIGEAR TYPE ZS1 - DOUBLE LEVEL

Designed to offerNumerous alternative combinations of typicalunits, to adapt the switchboard suitably to theinstallation characteristics

Efficient use of space for switchboards withnumerous feeders

Strong reduction in the width of the switchboard(3040% in typical configurations)

Same service and maintenance procedures asthe single-level switchboard.

From ABBs experience in the use of double-levelswitchboards, UniGear is now enriched with thissolution too.UniGear is a single busbar system switchboard inthe double-level configuration. Each panel con-sists of two superimposed units which are com-pletely independent of each other.Each unit can be fitted with either circuit-breakersor contactors, as well as all the accessories avail-able for the traditional switchboard units. All thesignificant components are identical to those usedfor the single-level units.In its middle part, the panel is provided with acompartment to take the auxiliary instruments ofboth the units. A compartment for housing otherinstruments is available in the top part of thepanel.The double-level units can be coupled directlywith the single-level units, and there is the possi-bility of extension on both ends of the switchboard.The switchboard requires access from the rear forinstallation and maintenance procedures,whereas all the service operations are carried outfrom the front.

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2

IF BT R RM J JM

IF IF IF IF IF IF

Electrical characteristics

Rated voltage

Rated insulation voltage

Rated power frequency withstand volatge

Rated lightning impulse withstand voltage

Rated short time withstand current

Peak current

Internal arc withstand current

Main busbar rated currents

Branch connector rated currents

2nd level

1st level

IF Incoming/outgoing feeder

BT Bus tie

R Rise

RM Rise with measurement

J Joint unit

JM Joint unit with measurement

Typical units

kV

kV

kV 1 min

kV

kA 3 s

kA

kA 1 s

kA 0.5 s

A

A

7.2

7.2

20

60

...50

125

...40

50

1250...1600

630...1600

12

12

28

75

...50

125

...40

50

1250...1600

630...1600

17.5

17.5

38

95

...40

100

...40

1250...1600

630...1600

8

UNIGEAR TYPES ZS1/ZVC - COMBINATION

UniGear type ZVC has evolved from the in-novative ZVC design and has been fully har-monised into the UniGear platform.Each unit is equipped with a fused withdraw-able vacuum contactor. For feeders withhigh current, it is possible to fit the contactorwith two fuses in parallel for each of thephases.The extreme compactness of the switchgear(each unit is only 325 mm wide) is one of itsmain feature.The units can be coupled directly with themain switchboard and there is the possibilityof extension on both ends of the switch-board.Thanks to the compact dimensions of theunits and to the possibility of installing theswitchboard against the room walls, the foot-print is notably reduced, even when usingmore than one contactor for complex motorstarters.The use of medium voltage protection fuses greatlylimits the fault let-through energy, making it possi-ble to reduce the cross-section of the connectioncables to the motor. This characteristic helps tosafeguard the insulation levels and increase theelectrical life of the cables themselves and of themachine they are connected to.UniGear type ZVC is now a part of the ABB UNIqueair-insulated switchboard family.

Designed to offerWide range of combinations for every type ofmotor starterEfficient use of space for switchboards withnumerous contactor outgoing feedersDrastic reduction in the width of the switchboardand of the overall footprintSame service and maintenance procedures asthe UniGear type ZS1 switchboardFull access from the front.

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Optimal solution for motor starters, power-factor correctioncapacitor banks and transformer feeders up to 7.2 kV

Multi function circuit configuration: direct on line, star-delta,auto-transformer, reversing, with reactor

Fitted with medium voltage fuses according to BS Standards

Designed to be equipped with two medium voltage fuses inparallel for each phase to supply feeders with high ratedcurrents

Possibility of integrating a single-phase voltage transformerto supply the control circuits

Availability of operating mechanism controls with electricalor mechanical latching.

Vacuum contactor Direct on line starter

Electrical characteristics

Contactor withelectrical latching

Contactor withmechanical latching

Single-phase controlsupply voltagetransformer

kV

kV

kV 1 min

kV

kA 3 s

kA

kA 1 s

kA 0.5 s

A

A

3.6

3.6

16

40

...50

125

...40

50

1250...4000

400

7.2

7.2

20

60

...50

125

...40

50

1250...4000

400

Rated voltage

Rated insulation voltage

Rated power frequency withstand volatge

Rated lightning impulse withstand voltage

Rated short time withstand current

Peak current

Internal arc withstand current

Main busbar rated currents

Branch connector rated currents

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4TECHNICAL DATA

(*) The double level units arealways equipped with gasduct.

UniGear type ZS1

UniGear type ZS1double level

UniGear type ZVC

Rated voltage

Rated short time withstand current

Branch connector rated currents

Height

Height with gas duct

Depth

Width

Rated voltage

Rated short time withstand current

Branch connector rated currents

Height

Height with gas duct

Depth

Width

Rated voltage

Rated short time withstand current

Branch connector rated currents

Height

Height with gas duct

Depth

Width

Rated voltage

Rated short time withstand current

Branch connector rated currents

Height with gas duct (*)

Depth

Width

Rated voltage

Rated short time withstand current

Branch connector rated currents

Height with gas duct (*)

Depth

Width

Rated voltage

Rated short time withstand current

Branch connector rated currents

Height

Height with gas duct

Depth

Width

kV

kA

A

mm

mm

mm

mm

kV

kA

A

mm

mm

mm

mm

kV

kA

A

mm

mm

mm

mm

kV

kA

A

mm

mm

mm

kV

kA

A

mm

mm

mm

kV

kA

A

mm

mm

mm

mm

...50

1250...2000

2200

2675

1400

800

...40

1250...2000

2200

2675

1400

800

...25

1600...2500

2325

2775

1615/1665

1000

...50

2500

2200

2675

1400/1780

1000

...40

2500

2200

2675

1400/1780

1000

...50

3150...4000

2200

2675

1400/1780

1000

...40

3150...4000

2200

2675

1400/1780

1000

...31.5

...1000

2698

1976

750

...31.5

...1000

2698

1976

750

...50

1250...1600

2698

1976

900

...40

1250...1600

2698

1976

900

...7.2

...50

...400

2200

2675

1125

325

...12

17.5

...31.5

...1250

2200

2650

1400

650

...31.5

...1250

2200

2675

1400

650

...25

...1250

2325

2775

1665

800

24

...12

17.5

1615/

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Basic Structure of Incoming or Outgoing Feeder Panel up to 2500A

FRONT VIEW SECTIONAL SIDE VIEW

2200

2100

CABLE COMPARTMENTE

VT

CB

CT

E S

CT

BU

SB

AR

CO

MPA

RT

ME

NT

1780

CB

CO

MP

AR

TM

EN

T

LV C

OM

PA

RT

ME

NT

R

Y

B

1000

FUSE

*

* The optional upper CTs may reduce the standard RATED CURRENTS indicated in page 5.

Basic Structure of Incoming Feeder Panel for 3150A - 4000A1)

CT* BUSB

AR

CO

MPA

RT

ME

NT

R

Y

B

CB

CO

MP

AR

TM

EN

T

LV C

OM

PA

RT

ME

NT

CT

E SCB

CABLE COMPARTMENT E

650/800/1000 1400

2200

2100

FRONT VIEW SECTIONAL SIDE VIEW

1) I>3150A is with forced cooling.

ABB Electrical Industries Co. Ltd.P.O. Box 251 Riyadh 11383Kingdom of Saudi ArabiaTel.: +966 (1) 265 3030Fax: +966 (1) 265 1211www.abb.com.sa

Al-KhobarP.O. Box 2873 Al-Khobar 31952Kingdom of Saudi ArabiaTel.: +966 (3) 882 9394Fax: +966 (3) 882 4603

JeddahP.O. Box 12539 Jeddah 21483Kingdom of Saudi ArabiaTel.: +966 (2) 669 6909Fax: +966 (2) 669 4310

abbISO 14001

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