FIELD: surge protection of railway signaling devices.
SUBSTANCE: proposed device has protection stages series-connected to line conductors and isolated by low-induction resistors. Each stage has parallel-connected varistor and capacitor. Series-connected in line conductors at input of first stage are limiting inductances in the form of transformers with gas-filled arresters inserted in their secondary windings whose center taps are grounded. Voltage limiter is connected at output of last stage in parallel with capacitor.
EFFECT: enhanced effectiveness of protective gear, enlarged range of protected equipment.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PROTECTING RAILWAY SIGNALING AND COMMUNICATION EQUIPMENT | 2003 |
|
RU2264017C2 |
| EQUIPMENT SURGE PROTECTIVE DEVICE | 2001 |
|
RU2190916C1 |
| DEVICE FOR FERRORESONANCE PROCESS SUPPRESSION | 2007 |
|
RU2339141C1 |
| SURGE VOLTAGE PROTECTIVE GEAR FOR TWO-WIRE COMMUNICATION LINE | 1993 |
|
RU2050663C1 |
| DIRECT CURRENT LOAD POWER SUPPLY METHOD AND DEVICES FOR REALISATION THEREOF | 2007 |
|
RU2360346C2 |
| DEVICE FOR EQUIPMENT OVERVOLTAGE PROTECTION | 2007 |
|
RU2337449C1 |
| DEVICE TO PROTECT EQUIPMENT AGAINST PULSE OVERLOADS | 2011 |
|
RU2459333C1 |
| DEVICE FOR CONNECTING HIGH FREQUENCY COMMUNICATION CHANNELS AND ELECTRIC TRANSMISSION LINE | 2004 |
|
RU2273955C1 |
| CIRCUIT DESIGN OF SPARK GAP TRIGGERING CIRCUIT IN OVERVOLTAGE PROTECTION DEVICE TERMINAL WITH ASYMMETRIC ELEMENT | 2014 |
|
RU2667895C2 |
| DEVICE FOR PROTECTING PYROCARTRIDGE FROM FALSE TRIGGERING DURING PULSE SURGES | 2007 |
|
RU2348093C2 |
