General Description - ABB SafeRing Installation And Operating Instructions Manual

SafeRing / SafePlus
SF 6 insulated ring main unit and compact switchgear
Installation and operating instructions
SafeRing 3 - way unit CCV
SafePlus 5 + 1 module with external busbar
SafePlus 14 modules
ABB / PTMV

1. GENERAL DESCRIPTION

SafeRing is a SF insulated ring main unit and SafePlus is a
6
compact switchgear for applications in medium voltage
distribution networks. SafeRing can be supplied as a 2, 3 or 4-
way standard configurations with additional equipment
according to customer specification. DF, CCF, CCC, CCCF,
CCFF, DV, CCV, CCCC, CCCV, CCVV.
SafePlus has a unique flexibility due to its extendibility and the
possible combination of fully modular and semi modular
configurations. Be - SL - Sv - M - C - De - D - F - V.
SafeRing and SafePlus offers a sealed stainless steel tank
which contains all the live components and switching functions.
The transformer is protected either by a switch fuse
combination or a vacuum circuit-breaker.
The units/ modules are delivered from the factory ready for
installation.
Routine tests are carried out on all units/ modules before
dispatch.
No special tools are required for installing the equipment.
Available modules are :
C - Cable switch
F - Switch fuse disconnector
D- Direct cable connection
De - Direct cable connection with earthing
V - Vacuum circuit breaker
SL - Busbar sectionalizer, load break switch
Busrise needed when SL on right side of SF6 tank
Sv - Busbar sectionalizer, vacuum circuit breaker
Sv always together with busrise (total width=650 mm)
Be - Busbar earthing
M - Metering cubicle
SafeRing / SafePlus with switch fuse combination in
compliance with IEC 60420.
With this unit the transformer will be protected by current-limiting
HV fuses in combination with a load break switch. The load
break switch is equipped with a stored spring energy
mechanism which can be tripped by the fuse striker pin.
SafeRing / SafePlus with vacuum circuit-breaker in
compliance with IEC 60056
With this unit the transformer will be protected by a vacuum
circuit breaker combined with relays and current transformers.
The standard relays are based on digital technology and do not
require an external power supply.
Further information can be found in the product catalogue for
SafeRing NOPOWSR 5974 GB and for SafePlus NOPOWSP
6004 GB.
3
NOPOWSR 5976 GB