- Sensors
- Temperature monitor TW 50/60
- Temperature monitor TW 03 S – Type 8432
- Electronic temperature monitor – Type 8433
- PT100 thermo sensor – Type 8433
- Electronic thermostat – Type 8434
- PT100 thermosensor – Type 8434
- Electronic thermostat in cable form – Type 8434
- PT100 thermosensor 2-wire and 3-wire cable connection – Type 8434
- Non-contact magnetic switch – Type 8441
- Current sensor – Type 8442
- Non-contact overhead wire contact TLC 4 – Type 8474
- Precipitation sensor – Type 8921
- Precipitation sensor – Type 8921
- Potential monitoring/-protection
- Mobile adjustment and test device – Type 8204
- Potential monitoring devices
- Display unit – Type 8540
- Voltage Monitors
- Voltage Signal Relays
- Potential Protection Devices
- for floating grounds with voltage monitoring – Type 8900
- for floating grounds with voltage monitoring – Type 8900
- for floating grounds with current control – Type 8901
- with low voltage limiter, surge arrester current monitoring and remote clearing function – Type 8901
- with SIEMENS low voltage limiter and surge arrester – Type 8901
- for open earthing with current monitoring and remote clearing – Type 8901
- for floating grounds with current control and LED indicator – Type 8901
- Voltage fuse – Type 8961
- Voltage Limiting Device – Type 8962
- Over Voltage Protector Type PSNP – Type 8963
- R/C combination – Type 8970
- Earthing device – Type 8971
- Special relays
- Switching amplifier
- Temperature monitoring – Type 8435-PT100
- Evaluation unit – Type KAG2
- Evaluation unit – Type 8480
- Evaluation unit – Type KAV1
- Switching amplifier – Type 8582
- Switching amplifier – Type 8582DCW
- Isolating switching amplifier – Type 8583
- Switching amplifier – Type 8586
- Mobile Test Device for non-contact overhead contact line switch
- Cable Monitoring Devices
- Points Heating Systems
- Current Monitoring/-supply
- Cabinets
- Accessories
- Individual Solutions
Description
The type 8597 electronic pulse relay is used as a connecting relay (interface) between the power supply for railway track systems and trolley buses operating with DC and voltages up to max. 1000 V at the control side and the associated signalling or control unit.
A typical application situation for this relay is use as a signal relay with actuation (actuation relay) via a contact wire contact.
The relay outputs one output pulse per switching-on contact. The duration of the output pulse is thus limited to a maximum of 500 ms, regardless of the duration of the input pulse. The connection between the duration of the input pulse and the duration of the output pulse, depending on the control voltage, can be seen in the attached graph. In practice, this means that contact can be made with certainty, almost regardless of the length of the contact wire contact and the speed (contact duration) at which the contact wire is travelled.
The large operating voltage range (= control voltage) means that the electronic pulse relay can be guaranteed to work as well when used as a normal switching relay (wiper relay). The effect of voltage drop-outs can be excluded within certain limits, regardless of the timing period.
A zero-potential changeover contact is provided as output at the relay.
Application of the input voltage (control voltage) is also shown after the end of the output pule period by an LED. In order to ensure maximum electric strength and to exclude environmental influences, the entire switching section of the relay is encapsulated.
Function
The type 8597 electronic pulse relay is a relay with an electronically clocked power supply (control voltage).
The latest electronic components provide the wide range of operating voltages while drawing the least possible amount of current. This guarantees a high level of safety and stability of the individual parameters and of the entire relay.
The special electronic switching also permits optimal adaptation to handle special application problems. (Please enquire.)
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