Various types of locomotive split camera start relay
Promulgator
：xiaoyanta Time：2022-04-14
Oil flow relay:
The oil flow relay is an accessory of the main transformer, used to monitor the working condition of the oil circulation cooling system, and send a warning signal to the driver when the oil flow stops or is abnormal. Model: TJV2
Wind speed relay:
The wind speed relay is installed in the air duct of each ventilation system to reflect whether the working state of the ventilation system is normal to ensure that the ventilation system has a certain air volume. Model: TJL1-7/10
Contact rated voltage: DC 110V
Contact rated current: 3A
Number of contacts: 1 normally open
Wind speed setting value: 7m/s±10%
Electromagnetic Relay:
TJL1 series electromagnetic relays are used as the grounding protection of the main circuit on the locomotive, the overcurrent protection of the traction motor under the traction condition and the overcurrent protection of the braking resistor under the braking condition.
Ground Relay:
Model: TJL1
Contact rated voltage: 110V
Contact rated current: 5A
Number of contacts: 1 normally open, 1 normally closed (bridge double breakpoint)
Setting value: 18V
Current relay:
Model: TJL1
Contact rated voltage: 110V
Contact rated current: 5A
Number of contacts: 2 normally open (bridge double breakpoints)
Setting value: Traction overload: 780A±5%
Brake overload: 460A±5%
Electronic time relay:
TXJT-702 electronic time relay is used to set the locomotive without turning on the fan when the locomotive is at a low level, performing shunting operations and quickly starting the locomotive during the process of starting the fan. According to the delay time, it is divided into 25S and 7S.
Hack the camera start relay:
The split camera on the electric locomotive needs to be connected to a starting resistor when starting. When the split camera is started, the starting resistor must be cut off in time to ensure the safety of the split camera startup system components. Undoubtedly, it is not allowed to cut off the starting resistor too early or too late. The split camera starting relay is the part that undertakes this important task. It can handle the connection and cutting of the starting resistor in time during the starting process of the split camera. .
