ABB VD4 Addendum Manual

5
The VD4-36kV cradle retrofit solution makes use
of fixed version of VD4 type circuit breaker.
For this reason, most of the information
contained in the VD4 instruction manual
(1VYN400990-051 Rev 00) are effective also for
this retrofit solution.
Following versions of fixed VD4 circuit breakers
are used with the VD4-36kV cradle retrofit
solution.
CB Type Ur (kV) Ir (A) Isc (kA)
VD4
36.12.32
36 1250 31.5
VD4
36.20.32
36 2000 31.5
In details, with reference to the VD4 installation
manual, the following sections are in common for
specifically VD4 circuit breakers .
Please refer to the VD4 instruction manual:
• Section 3 - Storage
• Section 5 - Description:
- Section 5.1 - General
- Section 5.2 - Reference standard
- Section 5.3 - EL operating mechanism
- Section 5.4 - Fixed circuit breaker
- Section 5.4.1 - General characteristics of
fixed circuit-breakers(36Kv)
- Section 5.4.2 - Type of circuit breakers
available in fixed version
- Section 5.6 - Characteristics of the
electrical accessories
(excluding locking magnet on truck-RL2)
• Section 6 - Instructions for operating the
circuit breaker
• Section 7 - Installation:
- 7.1 - General
- 7.2 - Installation and operating conditions
- 7.3 - Preliminary operations
• Section 9 - Maintenance
• Section 10 - Application of the X-ray emission
standards
• Section 11 - Spare parts & accessories
• Section 13 - Overall dimensions -Fixed circuit
breaker
• Section 14 -Product quality and
environmental protection
The specific information regarding the VD4-36kV
cradle retrofit solution is explained in this
addendum.
—
Applicability of VD4 instructions manual
to VD4-36kV cradle retrofit 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