What is outdoor RMU?
Medium voltage (MV) metal enclosed ring main unit (RMU) suitable for outdoor conditions. The SafeLink CB is an outdoor RMU ideally suited for rural and urban distribution applications up to 13,8kV.
Where is ring main unit used?
Ring main unit is used in a secondary distribution system. It is basically used for an uninterrupted power supply. Alongside, it also protects your secondary side transformer from the occasional transient currents.
What is the difference between ring main unit and a switchgear?
Ring main unit is a compact, sealed and enclosed type of switchgear. These are utilized for medium voltage power distribution. Complete switchgear simply means, assembly of needed switching devices. It also includes a protection device and a metering device.
Why do we use ring main unit?
purpose of rmu is to make a ring of power supply network so that supply can be feed from 2nd source on failure of 1st source of power supply . operating function of RMU (RING MAIN UNIT ) switchgear are closing , opening and to do earth to the ckt. .the funtion of rmu are very easily to operate .
What is the use of ring main unit?
This unit is used in power distributing devices as a secondary and compact solution. Under the stern guidance of vendor’s adroit professionals, this unit is manufactured with the using high quality components. Moreover, this unit can be availed from us at industry leading prices.
Which is the IEC outdoor ring main unit?
IEC outdoor ring main unit SafeLink CB. Medium voltage (MV) metal enclosed ring main unit (RMU) suitable for outdoor conditions. The SafeLink CB is an outdoor RMU ideally suited for rural and urban distribution applications up to 13,8kV.
What kind of insulation does ABB use for safering air?
The SafeRing Air portfolio is based on dry air technology as insulation medium. Dry air insulation has a Global Warming Potential (GWP) of zero. For the eco-efficient switchgear portfolio, ABB has developed a new SF 6 -free load break switch based on a puffer interrupter technology.
Which is ring main unit safering air or dry air?
SafeRing Air is a ring main unit (RMU) for the secondary distribution network. The SafeRing Air portfolio is based on dry air technology as insulation medium. Dry air insulation has a Global Warming Potential (GWP) of zero.