MaSzyna International > EU07 Simulator English forum
H-Maszyna Team (Hungarian team)
TZs:
Witam, welcome, dear friends of Maszyna!
Some things happened, some things are changed.
First: I leave abosolutely alone, so, H-Maszyna team no longer exist.
But I have developments, and I would by my suggestions on a new, own topic, if its no problem.
Second: already not like Hungarian railways. In the past few months I fell in love to Polish railways, the 3000V DC system, and especially to the EU07 locomotive.
I have two Polish development, one is sound upgrade/re-edit for EU07s. Maybe 1-2 day need for last tests.
But I have a question: the relay/contactor(?) samples, if when the main wheel reach notch 28, serial; and leave 29/back to notch 28, can be found in the "sounds" directory? Or these effects are in the code only? For me really miss the typical triple-click relay sound at reach full serial.:-)
Dodano: 20 Marca 2015, 18:32:46 Witam!
I've finished with the beta.
Whom do I send it for further testing?
And I will soon be my next project. At this time, have a little difficulty (I hate retouching).
Ra:
Well, I'm still impressed with this switch control harware:
And I wouldn't mind to simulate a 25kV loco from Hungary. However, it is not as easy to make it in a short time. Many things are already reworked for the 25kV, but perhaps not all. Also, I've made a copy of TD.SCN with polish signs mostly replaced by hungarian ones!
TZs:
I use a trick for "moving" signal plate. Plate's gizmo ~4m distance on Y axle from the stand. And the plate turn an indiscernible 1 degree left/right.
So, it's a very difficult thing, and there are many reasons.
Each Maszyna theme forum/topic in Hungary is sunk. Other railway sim themes be dying too.
I'm alone. I have n't textures, have n't photos for textures, and have n't technical help from the IRL railways for tests/realism (I'm not locomotive driver IRL). Railroad workers/engineers thought, all virtuality is a simple "game", a folly, not serious.
The state railway, MÁV made a difficult, unintelligible, expensive photographic regulation (accident prevention education, personal card). If it's have, on the site (examp.: a station), dispatcher or railway guard could deny the photographing.
New laws of photographing any public place maybe impossible (I have to ask every person, authorized to shoot, if they are included the picture, rework/retouching does n't matter).
And nobody want to work, maybe, Maszyna's world too difficult them.
So, for me not important, that locomotive I drive, is a PKP machine, or other railway machine. For me important the realism, the feeling. In these things Maszyna is the absolutely best (I'm tested airbrake realism in recent weeks - from result be later, so shortly: madness!).
And I view some movie on board Siódemka, and these inspired me. In my opinion, this is a fantastic engine, and have really nice noises. The resistor fan's howl, the nice, high pitch transmission (traction motor) sound, the relays clatter, the interest, quick managment of handles (main wheel, field handle). Durable, and strong (22,5% remaining field).
Dodano: 20 Marca 2015, 21:26:00 Ra:
Eeer, I'm read Your post again.
I can send to You the switches, but they are totally different geometry, like the current Polish switches. Exactly 6,14 degrees, length 33,1962m - for this, the max script need editing.
Unfortunately, they have not texture on ballast.
Oh, and 25kV. Yes I saw, and after a little fiz manipulating, a loco was able to run.
The biggest problem, I cannot understand for the AC system, some physical phenomenon(?) incomprehensible for me. Power factor (H: teljesítménytényező) - cos-fi (?), reactive power (meddő teljesítmény).
HTD:
http://www.electronics-tutorials.ws/accircuits/ac-waveform.html - some basics (nice illustrations)
http://en.wikipedia.org/wiki/Alternating_current - some basics (more formulas)
http://en.wikipedia.org/wiki/AC_power#Real.2C_reactive.2C_and_apparent_powers - about AC power
http://en.wikipedia.org/wiki/AC_motor - about motors
http://www.republiclocomotive.com/ac_traction_vs_dc_traction.html - AC traction vs DC traction
Power factor for AC is a coefficient determining roughly how much of available electrical power can be converted to other kinds of power, like mechanical or thermal. When you apply power to an engine the best theoretical power factor should be 1. It would mean the engine uses all available power to create torque. Practically it's hardly possible to maintain power factor this high due to motor coils inductance and other processes occurring in traction engines.
The total power multiplied by power factor is the active power.
Reactive power is total power minus the active power. It's the part of the total power which is "unusable" - motors cannot produce torque from reactive power. In real life circuits reactive power is relatively very small compared to active power. As reactive power means there is a current in the circuit, it's responsible for power losses: the current flows through resistance of the wires which causes heating. When the current from active power flows through the wires it causes the heating and losses too, but at least it can give us some torque.
TZs:
Thank You very much for the explanation, and links too! I read them all.
It was incomprehensible to me, why not called these concepts, as like efficiency or loss. But already understand, because reactive power not loss, only unappropriated power/energy.
Yet not 100% "clear", I think, a 2-3 times to be read those articles, are written in my language too.
Would like to ask, could You tell me from starting resistance engines? I couldn't find anything in details.
I would be interested, how switch off the resistors from the engine's traction circuit? For example at EU07, and example at "Bobina"?
I watched a film from a Bobina, there was a rotating device to the resistors/notches in the machine room (this similar, like a transformer tap-notch AC/DC locomotive). At EU07 (and their relatives) than i saw, relays, or contactors connected to resistors, and getting out them from the circuit, really fast. I guess (found a schematically illustration from Siódemka), have not separately resistors to all notch, so, combined them to higher (lower resistivity) notches, maybe other situations. On diagram, was about 30 resistors, but not all by traction/notches, bybasses (fields).
Tomorrow I will open a new thread, for my developments, questions from IRL Polish railway, suggestions, ideas (examp.: sample editing tricks) and many other.
Now, have a good night everyone!
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