PASS M00

- Single Bus Bar (SBB)
- Double Bus Bar (DBB)

Technology
The PASS family of switchgear modules takes advantage of a Hybrid technology solution: on the one side it uses reliable Air Insulated connections between modules; on the other side it encloses the bay functions in a single phase Gas Insulated housing, fully-comprehensive of:
- Circuit breakers
- Disconnector
- Earthing switches (fast or slow)
- Voltage transformers and Voltage sensors
- Current Transformers
- Bushings or Cable enclosures

Advantages
High customizability yet short delivery time, due to the modular design of PASS modules and the implementation of Just In Time - Assemble To Order production models.
High reliability, due to the use of standard components continually reduced in number
Few installation space requirements, due to the completeness of functions enclosed in one single PASS module.
Fast erection and commissioning, due to the fully-assembled configuration of the modules during transport.
Life cycle cost significantly lower than AIS or GIS technologies.

Design
The Circuit Breaker is activated by three single-phase or one three-phase self-blast type spring loaded drive.
The Disconnector and Earth switch are integrated in one single mechanism; the contacts are mounted on the corpus of the module and on its internal rotating shaft, which movement allows shifting between the possible configurations of the module.
The PASS M0 modules use one dedicated shaft and drive per three-phase Disconnector and Earth switch device.
The Gas insulated Bushings are made of an epoxy impregnated fiberglass tube and silicon rubber sheds, which are hydrophobic, don’t require maintenance and are resistant to mechanical stress.

Technical data