Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [siemens]

Siemens AG is a German multinational engineering and electronics conglomerate company headquartered in Berlin and Munich. It is Europe's largest engineering company and maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the company's total sales, is its second-most profitable unit behind the industrial automation division.

Siemens AG is a German multinational engineering and electronics conglomerate company headquartered in Berlin and Munich. It is Europe's largest engineering company and maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the company's total sales, is its second-most profitable unit behind the industrial automation division.

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Why to use Siemens to measure high resistance?

I have a Fluke 87V and I can see lots of EEVBlog videos were Dave measure high resistance values, and instead of using the Ohms range, he goes to the Siemens range (nS actually). My question than is, why the multimeter shows this big values in…
mFeinstein
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Identifying exact type of transistor

I can not identify the exact model of this transistor. It reacts as a bipolar NPN Si transistor with EBC pin configuration (first image left to right,) not ECB! This seems to be made by Siemens. Package is TO92. Any idea? It's from old store,…
Peter MP
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Does anyone know what the heck this is?

I really hope I'm posting this in the right section. I was strolling down the street and looked up at this massive barrel object mounted to a utility pole. It's hard to tell from the pic, but it definitely has the brand Siemens stuck to its side.…
AfroJoe
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What is this SOIC-8 part from ST?

Marked "393" and "(ST)GZ439" or "6Z439" under conformal coat. Siemens DC/DC PSU section, near a UC3843B current-mode PWM controller, HF transformer, etc. Checked the ST TS393ID datasheet, that is a micropower dual CMOS voltage comparator. …
rdtsc
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LCD connector repair

Does any one know if it is o.k to run a soldering iron over the connector with the fine black traces on in the photograph attached(or below I am new to pic posting :D)? I have an office kitted out with Siemens optipoint handsets (410's and 500's…
Big_James
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GPRS data call using GSM/GPRS modem (Siemens TC35 and/or MC35)

I'm developing a data aquisition module, that amongst other things, it have to comunicate through GSM/GPRS module, since it will be a mobile application. I can connect to the module and send sms's with not much effort. Since I have to comunicate…
Sergio
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PCB Layout Mentor Graphics - basic question about transmission lines and components

I am currently doing a PCB Layout for an amplifier and would like to know if there is any way to add a transmission line to the Layout. As far as I noticed there is no corresponding symbol for such a transmission line, so it has to be implemented in…
MagicMan
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What do you mean by 240Y / 131 V network specification?

I was referring an industrial control panel guide for North American market for the network specifications. The specification mentioned a voltage rating 240Y/131V. I am curious, how would one get a phase voltage of 131V for 240V line to line, since…
DaSnipeKid
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ASi (AS-Interface), understanding power supply

Can somebody help me understand the ASi (AS-Interface) power supply? I think I understand how the data decoupling works (because of the induction voltage of the inductor). I don't understand the purpose of the capacitor and resistor in parallel…
Nik
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What kind of apparatus could this be?

I apologize in advance, if this isn't the right place to ask this. I want to find out, what kind of electronic device this is. The tape recorder is just on top of it, but I am talking about the device beneath it. It is integrated into a metal…
Andreas Hartmann
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Xpedition Designer DNP (no fit) components

Could somebody please let me know what the method is to mark a component as DNP (not to be fitted in production) in Xpedition Designer (schematic entry). I can't find it in the docs and I'm used to using Altium with its "Variant" system. cheers
BlueTwin
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I Need help to find what smd component is this?

This component is found on an electronic board of a Siemens Simatic S7-400 device. The printed nomenclature on the electronic board reads '6C F
EEIR
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CT Standards for HV Breakers (145 kV) - Siemens

I (young, new engineer) am researching the standard CT ratio for a Siemens HV circuit breaker for my senior engineer. He tells me they don't post their standards like other companies do and I am curious if there any standard besides the IEEE C57.113…
MoreThanMeetstheEye
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How do I configure a Siemens protection relay for ground/neutral protection with no neutral current transformer?

On a 35kV 3phase system, we have no neutral connection from the incoming delta/wye transformer. The wye is only connected to a high resistance ground system. We have a current transformer (CT) for each phase for overcurrent protection. The return…
ChrisMan183
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Contacts on Safety Relay

I'm trying to replace this Banner part (an E-Stop Safety Relay) with a Siemens part that will do the same thing. Originally, I had picked this replacement, but became concerned when looking at the datasheets, because the replacement candidate…
DJG
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