Paris RER D - EPIC DC PULSING

This train has the best DC pulsing I have ever heard.

[@gabek3697]

I remember the first time I ever heard that sound. It is absolutely amazing!

[@zakimwantu___]

Z20500 is beautiful train and sound 😍!

[@zakimwantu___]

@Andrea Di Maggio 😂

[@GadgBoy313]

I must agree that is an absolutely beautiful DC pulsing motor sound.

[@FrecciaNeraM36]

I won't argue about it having the best pulsing sound but the Z20900 trains sound way nicer overall.

[@bardock1415]

@@FrecciaNeraM36 pas du tout, celui des 20900 est bien moins mélodieux 👎🏾

[@TouffmanJasonTGV]

@@bardock1415 non il est tres bien aussi

[@Revan-N7]

That's because you don't take this shitty train everyday

[@SM8150-AC]

​@@bardock1415si c'est un bon mélange des deux ça passe. On dirait du violon 🎻

[@kingofbehfist6730]

The DC pulsing sounds exactly like a musician playing the violin underneath the train

[@Dbiza]

Yes , me too .

[@fanfan54old]

I love this sound too, but when you're tired sometimes you don't want to hear this loud sound during all your trip, and you'd prefer something silent 😅

[@fanfan54old]

(I take the RER C and RER D, both lines have these trains)

[@haiderszn]

s a t i s f y i n g

[@qwertylello]

France, stop being so perfect. As an Italian I feel extremely jelly of your train system

[@AH-je3mk]

Hehe

[@AH-je3mk]

WE CAN do better

[@tubcitelis1213]

L'un des rares RER a avoir encore tous ses moteurs en fonctionnement

[@zakimwantu___]

Ouii

[@yekite4906]

pas comme le MI du RER B

[@HDTransport]

They sound soooo nice

[@faszikellemeszene]

This is the best in my opinion too. I could listen to it all day and not get bored.

[@siytaro8443]

If one time you had a chance to do an cab-ride in those EMU, JUST DO IT ! :D I worked on those machines, and their sisters called "Z5600" who can only work on DC part (south part) of the RER D (instead of the Z20500 which are AC/DC compatible). There 4 blocks of asynchronous motors per side edge, so there is 8 blocks of motors per EMU's. In french we call them "BM" for : Bloc Moteur which mean Motor block. If you want learn more about those fabulous RER, im here, feel free to ask me about.

[@bardock1415]

Fact

[@bardock1415]

@@siytaro8443 il y a 4 moteurs par bogie ? C'est ce qui fait ce son particulier

[@Lodai974]

@@bardock1415 no, the light purring is due to the engine, but the sound similar to the violins is due to the traction chain

[@SM8150-AC]

​@@bardock1415non, il y en a deux et pas quatre.

[@siytaro8443]

Something told me that you loved the sound of the Z20500 ! ^-^. An awesome sound, the best of the RER and Transilien networks ! I worked on those machines, when i was a the SNCF, the maintenance center is not far from where you were at the first station, cold "Villeneuve triage".

[@indra144]

called* not cold

[@laminobaybay2929]

Le monde a besoin de ce train

[@ratpetiledefrance444]

Le train préfèré

[@zakimwantu___]

Oe les Z20500 c'est les meilleurs c'est aussi mon train préféré leurs démarrages leurs sons leurs claquements etc... Une vrai légende😍🔥❤💯

[@Dbiza]

@@zakimwantu___ en + des z20900

[@tr_nt.]

This is such an epic train!

[@zakimwantu___]

Z20500 is the best train Is m'y favorite train Is leggendary!😍❤️🔥💯

[@ebtv445]

No matter how many times I've taken Z20500 EMU trains, I just can't get enough of that sound

[@thefrenchelevatorchannel]

Lyon metro cars also have a nice DC pulsing sound, are rubber-tyred, and one of the lines is unique in the world (rack system in a metro).

[@HDTransport]

I’ve been there many times and as much as it doesn’t sound as good as this, it still sounds absolutely amazing

[@AH-je3mk]

@@HDTransport yes i agree

[@ec8451]

It leaves a station at 35mph! Has some of the best acceleration I've ever seen!

[@jonalderson5571]

Reminds me of the San Francisco BART

[@zakimwantu___]

Z20500 Is the best train on the world!!!

[@Lodai974]

It must leave a platform 265m long in 25 s .... These are the construction standards for suburban trains since the Mi79..

[@Mystixccx]

Hi i know a lot of train driver there all said to me the Z20500 has the best acceleration in the world for the 0-100kph

[@just_call_me_karl]

This video literally made my day.

[@SproutyPottedPlant]

WHOooOa that sounds so epic!!!!

[@phox4186]

At 04:49 when I take those trains I love when it makes this sound, sort of kickdown when it's at full power

[@LauAM80]

5:13 Le bruit du hacheur capté par l'interphone !!! XD

[@TC_Z2N]

😂

[@nedstanley823]

Love that buzz. In San Diego there is a light rail system that has SD 100s they make a sound similar to this as they are DC drive.

[@miguelchss]

Stylé le demarage

[@ratpetiledefrance444]

J'aime trop le démarrage du train

[@zakimwantu___]

@@ratpetiledefrance444 pareil!

[@Dbiza]

La même chose 💓._.💓

[@SproutyPottedPlant]

Wish I was as brave and clever as you to travel to interesting places.

[@rodrigoesley]

I love the Chopper motor sound

[@lecheyenne62]

kzbin.info/www/bejne/hXS4hYZ3YsZ6mNU Z 20500 Train set. Line : RER D. And its an Asynchronous engine (8 in total ). Speed max: 140 km/h ( 87 MPH)

[@narunpardeshi4422]

sounds like a class 319 mixed with a trumpet

[@Lodai974]

Euh no. sound of the class 319 looks like sound of the Z5300 and Z6400 at Paris (scrapped for the first, almost for the second.) Z5300 sound kzbin.info/www/bejne/eZ_cnJ-LaKuDrac Z6400 sound kzbin.info/www/bejne/Z56whn-XasR9gbs

[@indra144]

@@Lodai974 well i guess class 319 has same motors with MI79

[@Lodai974]

@@indra144The motors ? no! Mi79 use "EHO" motor from alstom , not GEC. But probably they use same control system with chopper and thyristors. In video kzbin.info/www/bejne/Y3zEdpWCbqqWbKM we can heard the sound of the train and he is more close off the Z6400 series than Z20500 series.

[@nooxis2643]

@@Lodai974 actualy MI79 use TCO chopper/traction motor

[@Lodai974]

@@nooxis2643 i know !!! Thyristor/chopper and analogic command system. and TCO is Alstom now

[@Josefer927]

Imagine this train on TSW 2 ......🔥🔥

[@zakimwantu___]

Yesss!!

[@robertchasseur6535]

This name is Z20500 :D I love take it

[@treavongayle8403]

The traction motors sound almost like a Class 319

[@indra144]

MI79 has same motor with class 319

[@indra144]

@@zkd_345 i don't think so

[@zakimwantu___]

Z20500😍

[@passiontransporttravelling]

What application uses you to measure the speed ??

[@FM60260]

I've always heard people saying 319's have a nice DC pulse sound to them but I've only had one and it sounded boring and didn't seem to have any sound to it, the only DC pulsing units I've had have been the earlier T68's (not T68A's as I only managed to get one of them and they sound different).

[@indra144]

MI79 too.

[@thegroupofreptiles6823]

Are you sure you were sat in the motor coach? Only 1 carriage actually has motors which is the one with the pantograph on... 319s have a very distinctive 300hz switching frequency

[@newmsioworld2624]

I hope Amy adams will be arrived soon, Beno. ☺

[@infl]

I was just in Paris last week and we spent over €200 on tickets for that train system. Great design, so much better then what we have around Washington DC and way cheaper. And have you seen the metro train cars with large rubber wheels instead of solid metal trucks? Do you know what the design reasoning behind that is?

[@faszikellemeszene]

Well this is the reason why a DB Intercity Express train had a terrible accident in '98

[@faszikellemeszene]

Because it had some rubber on its wheels

[@infl]

The train cars I'm talking about have rubber tires like you would find on a large truck riding on wide metal rails and guiding rails on each side to keep it on the track, and they do not operate at high speed. Like the cars in Paris metro line 11

[@hotseventyfive]

I Forget I think that the reasoning is that the rubber tires are quieter and smoother

[@infl]

Could be... but if you have been on the 11 line you will know it's everything but quiet and smooth 😂

[@ignacioparra9351]

There is not a DC engine, there is a asynchronous engine, that is AC and trifasic, it's great ! the asynchronous engine can make a great acceleration

[@benolifts]

It is DC not asynchronous AC. Ac motors (both asynchronous and synchronous) could not be used on trains until AC pulsing was invented, or more precisely, not until transistor technology advanced enough for transistors to switch large enough supplies at fast enough frequencies to replicate AC waves. You can not use an AC motor connected straight to the mains for such large loads or for loads with such variation in speed. Asynchronous AC motors are only efficient when the frequency is close to the motor speed. An AC motor will never have great acceleration as the starting up is always very inefficient as the motor is not moving and the frequency is 50 hz. As for synchronous AC motors, these are impossible to use until VF was invented. Also the incoming supply is single phase. So you can not run a motor of single phase as there is no rotating magnetic field. The largest single phase motor you can have is 3.1KW. The largest AC motor you can have where the motor pulls from a standing start at 50hz (in other words, no VF drive) is 20KW. So it is impossible that this train has an AC motor, and it obviously does not have a VF drive because of the sound and age of it.

[@MissieFlowOfficiel]

As someone who has worked on these trains, I can confirm what +Ignacio Parra said, the Z 20500 use asynchronous AC motor. As a matter of fact they were one of the first train series in France who used them.

[@benolifts]

It doesn't sound like any AC pulsing I have ever heard. How does it work?

[@MissieFlowOfficiel]

Beno Like any AC asynchronous motor. If the power source distributes AC current (25kV AC 50 Hz in France), upon entering the train it's transformed into DC current (1,5kV DC), then it's chopped via transistors or thyristors (it was possible since the 1970's for the transistors and 1990's for the thyristors) and ondulated as an AC current before entering the motors.

[@nooxis2643]

@@benolifts it's an current source inverter with thyristor scr

[@collareddovepigeon5621]

The start of Motor SOUNDS LIKE AN ICE 3 MOTOR BUT HIGH PITCHED

[@tob19]

Can you go to Hamburg to review the DT4 train and it’s 3 series, one of which is a thyristor and has a lovely sound. The 2nd series dt4.3 to .4 has a GTO unique sound that I’ve never heard and the newest sets .5 and .6 use a normal Bombardier GTO drive. The thyristor drive is amazing however it is being phased out and trains are beginning to lose their hum at the start and just sound like the newer sets. I went there and it was amazing (U Bahn by the way)

[@thegroupofreptiles6823]

Why is it the chopper frequency changes in some units when starting? I know why this happens in AC units but not in DC PWM...

[@nooxis2643]

cause the auto-sequential current source inverter can't modulate the current, only the frequency output for the asynchronous motors by doing some sub chopping at the start so you need a chopper to modulate the current and at the time thyristors were still a bit hard to drive especially at low angles so you can avoid that by lowering the frequency. hence the fact that it changes three times in a row.. to give the exact current needed for the inverters

[@632TIGRE]

super video!!!

[@hari07vk]

Yes

[@Dbiza]

iLOOOOOOOOOOOOOOOOOOOOOVVVVVVVVVVEEEEEEEEEEEEEE Z20500 COOL TRAIN EMU BENO ÉOLE

[@gbehiesylvie9876]

Génial

[@QuarioQuario54321]

What’s the best AC though? Mine is Madrid Metro 9000 series

[@Dbiza]

QuarioQuario54321 Eng : AC or DC? Fra : courant alternatif ou courant continu ?

[@moms_smssi]

2:15 😮😮 Smartphone.

[@moms_smssi]

1:24 +1:27+3:19+3:50

[@ratpetiledefrance444]

Il chante bien ce train

[@emmareporter4324]

What was the Fastest Speed u saw on your phone

[@benolifts]

Top speed is 75 mph, but I think they have power to go faster.

[@emmareporter4324]

Beno ok

[@jh5325]

@@benolifts is it faster than tram 11 exprs

[@Lodai974]

@@jh5325 yes .they are suitable for 140kph(87mph)

[@larnacoeur75]

I know the capacity of theses motors, they can be much better I know. Very very powerfulls motors (and so much noises)

[@hesterclapp9717]

It sounds like a viola

[@williamhuang8309]

Class 319 but higher pitch

[@leviqrwsk]

Sounds like Taurus 1216 or 1116

[@Lodai974]

probably because of the frequency quadrants,The steps of the sound

[@BsBsBock]

Over engineering

[@paul04041988]

I prefer the British class 319's

[@SM8150-AC]

It does have same AC pulsing. But actually the 20500 have a 3-step frequency that change (200/300/600 Hz) not like British Rail Class 319's 300 Hz with a loud 100 Hz hum. Z 20500 have same loud 100 Hz hum but in 25 kV, not in 1.5 kV.