RVL
Overvoltage protection in railway networks
RVL is a voltage limiting device designed for
effective protection of personnel and
passengers against impermissible touch
and accessible voltages as well as for the
protection of equipment against lightning
and power surges.
The voltage limiter is installed between the
current return path and earthed structures
laying adjacent to the rails (catenary poles,
signaling
and
telecommunication
equipment, etc).
In case of overvoltage, RVL eliminates the
dangerous voltages to very low safe values.
Furthermore in case of faults (e.g.
accidental short-circuits with the contact
lines) RVL generates a durable conductive
path between the overloaded area and the
substation. This results to increased current
loads that are sensed at the substation,
allowing an efficient tripping of the safety
switch.
Overvoltage generated by lightning is
limited effectively by Raycap’s patented
surge suppression module (Strikesorb).
Over-voltages of longer duration are limited
by a thyristor that has a high-energy
capability.
Benefits
-
Ultra fast response time
-
Efficient & safe elimination of the dangerous
overvoltage to very low voltage values
-
Very low residual voltage ensured
Strikesorb surge protection technology
-
Temperature independent triggering voltage
in the range of - 40C et + 85C
-
Guaranteed reversibility for currents up to
1000 A with duration of 250 s
-
Combined
protection
for
passengers and equipment
-
High short circuit current withstanding and
high energy absorption capability
by
personnel,
RVL protects against impermissible touch
voltages in case of faults and in case of
operation by fulfilling both VLD-F and VLD-O
type requirements as it is described in
EN50122-1:2010. RVL fulfills the requirements
of the following related current standards:
RVL is powered by Strikesorb, Raycap’s next
generation surge suppression module
-
-
EN 50122-1:2010: Railway applications Fixed installations - Electrical safety, earthing
and the return circuit - Part 1: Protective
provisions against electric shock
EN 50123-5:2003: Railway applications Part 5: Surge arresters and low voltage
limiters for specific use in d.c. systems.
www.raycapsurgeprotection.com
RVL
Technical Specifications
RVL
Strikesorb
Electrical characteristics
Electrical characteristics
- Rated Voltage (Ur):
100VDC *
- Maximum sparkover voltage (Us):
120VDC *
- Long term withstand current
Iw-tp (with guaranteed reversibility): 1000ADC/250s
- Rated withstand peak current
half-sine wave:
26kA/10ms
- Rated withstand peak current
half-sine wave, (10 x 3 pulses):
10kA/50ms
- Nominal discharge current In (8/20μs): 20kA
- Maximum discharge current (8/20μs):
200kA
- High current impulse (4/10μs):
100kA
- Lightning current impulse withstand
(10/350μs) according to IEC 61643-1:
25 kA
* Other values available on request to meet special requirements.
Operating conditions:
www.raycapsurgeprotection.com
RVL-20110901-EN
- Temperature range: -40 °C to +85 °C
- Weight without accessories: 11,5 kg
- For indoor and outdoor use
(IP 67, UV resistant)