ABB VD4 - Applicability of VD4 Instructions Manual to VD4-36 Kv Cradle Retrofit Solution

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