Electric Earth

[cptalextsang 0]

Hello there,

 

Today as I was driving the ChS4 KVR locomotive on the Kiev-Shevchenko route, I had an unfamiliar problem: an indicator light which showed "земля", which I believe it means earthing. The locomotive still went normally until I had to switch it off when passing н/в. As I switched the main power on and raised the pantograph up again, the ammeter jumped so high that the pantograph burnt off, and the Block 851 system came on. I resetted the 851 and tried using the front pantograph but no luck, as the ammeter readings showed high numbers again. Afterwards, the main power cut off, and I was unable to start the locomotive again.

 

May I know what the problem was and how I should fix it? Thank you very much for your help!

 

Alex

[sflit 9]

Hi Alex,

When passing the н/в there's no need to turn the CHS4KVR locomotive off. Just power off. That is enough. Pantograph must stay upright. If your speed is faster than 70 it is prohibited to raise them. No wonder you broke it. So passing the н/в only main control switch to 0. Compressors and fans - on.

Земля starts flashing because of the higher voltage. Usually when you are at the 28-the position or over, driving for some time. Lower the voltage with the main switch down, 3-4 positions, and push the tiny little button above the block 850. I try not to go over position 27.