Download Pole mounted Vacuum switch for electricity distribution networks

Vacuum Switch
Pole mounted Vacuum
switch for electricity distribution networks
The vacuum switch reduces downtime, breaks and
closes with full load. It reduces numbers of costumers
affected by faults in the grid and increases the profitability in the network.
VAI 150 is a pole mounted vacuum switch
designed for use in overhead line distribution networks. The vacuum switch reduces
downtime, breaks and closes with full
load. It reduces the number of costumers
affected by faults in the grid and increases
the profitability in the network.
Secure work can be performed during service, because of the visible open point and
thanks to the integrated air break switch.
MORE INTELLIGENCE AND FLEXIBLE
COMMUNICATION
By adding more intelligence, sectionalizing
and flexible communication to the vacuum
switch the opportunities for a more efficient handling of the interruptions in
the net increases. Data and measurement
of various values, such as phase current,
voltage, power, frequency, earth fault, time
stamp and history logging can be seen
directly from the SCADA system.
The vacuum switch acts quickly and cuts
the power from the point where the
vacuum switch is placed, this happens be-
fore the substation even had time to react
and cut, this means that fewer people are
effected by the power cut.
DESIGN
The vacuum switches are cast in epoxy
resin with a protective layer of silicone,
which makes the poles very solid and protects the switches from bump and external
impact of moisture and dust.
The switches are equipped with robust
cable connectors that ensures trouble-free
life span and high service quality.
Current is measured in two or three phases
through current transformers and can
be fitted with zero crossing CT to detect
extremely low earth currents.
INSTALLATION AND MAINTENANCE
The vacuum switch is easy to install and
is mainly made of stainless steel, it needs
minimum of maintenance because of its
surface that has good resistance against
corrosion.
•
Breaks and closes with full
load
•
Secure work with visible
open point
•
Reduce downtime
•
Reduce numbers of costumers affected by faults
•
Increased profitability
Solutions with Vacuum switch
DIFFERENT SOLUTIONS
VAI 150 - VACUUM SWITCH
•
Breaks and closes with full load
•
Reduce downtime
•
Reduce the number of affected
costumers
•
Increased profitability
•
Maintenance-free and environmental
friendly
•
Secure work with visible open point
•
Distinct indication for open/close
•
Indication for tension the spring
ACR 150 - PROTECTION RELAY
•
Functions for measurements and controlling of current, voltage, power and
frequency
•
Fault detection of phase and earth fault
•
Time stamp and log history
•
Automatic re-connection
•
Remote and local manoeuvring
•
Only a small part of the grid gets disconnected
•
Earth fault protection
•
Over current protection
VIS 150 - REMOTE CONTROLLING
•
Manoeuvre up to three VAI 150
•
Communicate with control system
(SCADA) via PlexCom radio or other
communication alternative
•
Self sectionalizing
•
Measure and calculate e.g. phase
current, phase voltage, phase angle,
phase power, reactive power, frequency and earth current with FRE
150 installed
•
Timestamp and log history
S P E C I F I C AT I O N VA I 15 0
VOLTAGE/CURRENT
Voltage: 12 kV (also available in 24 kV - VAI 160)
Current: 630 A
Short-circuit breaking current: 20 kA
Max breaking current: 20 kA
Max making current: 50 kA
Max peak current: 50 kA
Nominal resistance of power: 4 sec
Isolation: 42/49 kV
Nominal frequency: 50 Hz
Operating sequence: 0-0.3s-CO-180s-C
Short-circuit breaking current times: 30 times
DIMENSIONS
Vacuum switch + disconnector: H725 x L830 x W940 mm
Weight: 180 kg
ENVIRONMENTAL CLASSIFICATION
Temperature: -40°C to +40°C
Altitude: ≤ 1000 m
Air pollution: class IV
Intensity earthquake: ≤ degree 8
STANDARDS
IEC 56: High voltage circuit breakers
IEC62271-100: High voltage circuit breakers with control
device (GB 1984)
EXPERIENCE
AREAS
We have over 25 years of experience in digital
radio communication in areas as VA-applications
and network automation. Experienced employees
and development in radio technology, automation and communication.
Our units works as monitoring and control equipment in areas such as electricity distribution, oil &
gas industry, water and wastewater, district heating, train systems, and in several other areas.
Smart Grid Networks Sweden AB | Rombvägen 7 - SE-371 65 Lyckeby Sweden
Operator +46 455 600 100 | [email protected] | www.smartgridnetworks.net
PB-EN-2 © Smart Grid Networks Sweden AB
Manoeuvres: 10 000
Rated operating voltage: 24 VDC
Distance phases: 260 mm
Contact resistance switch/with disconnector: ≤60/120 μΩ
Manoeuvre: Switch - Manual/motor, Disconnector – Manual