Eaton RVAC - Page 29

Instruction Leaflet IL0102002E
Effective April 2018
Ring Main Unit Operation Instruction
29EATON CORPORATION www.eaton.com
RVAC-M Metering
cabinet
Equipped with normal current
transformer and voltage
transformer, for the convenience
of inspection by power sectors,
easy to be used with any other
cabinet, for the metering of
electrical power
1. Air insulation
2. Bus connection
3. Equipped with electromagnetic lock, to
prevent from entrance into live sections by
mistake
4. Optional ammeter, voltmeter, watt hour
meter, PT fuse and lightening arrestor
5. As per the requirements of power
companies
6. Several different schemes
RVAC-PT-I Voltage
transforming
cabinet-I
Type I is equipped with a voltage
transformer and connected directly
to the bus, to monitor the system
voltage and provide operating
power supply (the cabinet is gas
insulated).
1. Unexpandable on the left and right, nor
adding bushings
2. Termination head (for end cabinet)
3. Equipped with voltage presence display
and voltage transformer
RVAC-PT-II Voltage
transforming
cabinet-II
Type II is equipped with a
three-position load switch, with
optional load connecting or
breaking voltage transformer and
grounding, to monitor the system
voltage and provide operating
power supply
RVAC-V Circuit breaker
cabinet
Equipped with a vacuum circuit
breaker, connected in series with a
three-position disconnecting
switch, the circuit breaker placed
at the bus side, the disconnecting
switch at the incoming/outgoing
cable side, with optional regular
relay protection device.
1. Vacuum circuit breaker
2. Three-position disconnecting switch /
ground switch
3. Rated short circuit breaking current 20kA
4. Operating life: circuit breaker: 10,000
operations, disconnecting switch: 5,000
operations, ground switch: 2,000
operations
5. Voltage presence indication
6. Short circuit and ground fault indicator
7. Current transformer
8. Relay protection device
9. Optional forced latching device at the
incoming side
4. RVAC cabinet types (Continued)
RVAC series Primary scheme Type No.
Name
Function Others