ABB VD4 Addendum Manual

15
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Installation
New components to be fixed/
mounted on existing VHA 36 Panel
—
Fig 15.1
1 Bottom plate assembly
2 Earth guide
3 LHS & RHS guide rails
4 Rear bottom plate
—
Fig 15.2
1 CB compartment top cover
(upper door) assembly
2 VD4-36kV circuit breaker
3 CB compartment main door
4 Bottom front door
4
1
2
3
1
2
3
4
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Fig 15.3
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Fig 15.4 - ABB VHA36 panels retrofitted with VD4-36kV cradle solution

ABB VD4 Specifications

General

Type	Vacuum Circuit Breaker
Rated Voltage	Up to 36 kV
Rated Short-Circuit Breaking Current	Up to 63 kA
Frequency	50/60 Hz
Standards	IEC 62271-100
Application	Medium voltage power distribution
Rated Short-Time Withstand Current	Up to 63 kA for 3 seconds
Mechanical Life	Up to 30, 000 operations
Installation	Fixed / Withdrawable
Operating Mechanism	Spring-operated
Rated Current	630 A / 800 A / 1250 A / 1600 A / 2000 A / 2500 A / 3150 A / 4000 A
Electrical Life	Up to 10, 000 operations at rated current
Control Voltage	24 V DC, 48 V DC, 110 V DC, 220 V DC, 110 V AC, 230 V AC