ABB VD4 Addendum Manual

18 VD4-36KV CRADLE RETROFIT SOLUTION SERVICE INSTRUCTION MANUAL
Table 2.2
Checking operation Time interval Criteria
1 Carry out five mechanical
opening/closing operations
1 year The circuit-breaker must operate normally without stopping in
intermediate positions.
2 Visual inspection of the poles
(parts in resin)
1 year or 5000 operations The parts in resin must be free of any accumulation of dust,
dirt, cracks, discharges or traces of surface discharges.
3 Visual inspection of the
operating mechanism and
transmission
1 year or 5000 operations The elements must be free of any deformation.
Screws, nuts, bolts, etc. must be tight.
4 Visual inspection of the
isolating contacts
5 years or 5000 operations The isolating contacts must be free of any deformation or
erosion.
Lubricate the contact elements with industrial Vaseline
grease.
5 Measuring the insulation
resistance
5 years or 5000 operations See table 2 1. point 1
6 Checking interlock operation 5 years The interlocks provided must operate correctly
—
Periodic checking

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