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Copyright 2008, L.C. Switchgear Ltd, produced by Dave Tanner
Resistor and Spark Gap Devices
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Resistor and Spark Gap Devices
Resistor & Spark Gap Enclosure
for Channel Tunnel Reinforcement
CPS Overvoltage Device
for EDF Energy
Resistor & Spark gap enclosure in a
Stainless Steel Cabinet
for Channel Tunnel Reinforcement
Resistor & Diode panel for
Channel Tunnel
Reinforcement
Return Current Isolator for use with the Resistor panels for Channel Tunnel Reinforcement
L.C. SWITCHGEAR LTD
Where there is 25kV overhead lines and 750V DC, the non-linear resistors provide a path back to source for currents flowing in short circuits of the 25kV AC overhead lines, while limiting the current which flows during the normal operation of the railway.
The spark gap device triggers to limit earth voltage to a safe level.
The resistors limit the running rail touch voltage to within safe levels.
This restricts the risk of stray d.c. currents.
Non Linear Ceramic Disc Resistor assemblies.
(This must be matched to system requirements)
These are often used in conjunction with Return Current Isolators.
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