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  • Users: Alms88
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  1. Alms88

    Load sharing

    In power system we power transfer is depend power angle between sending and receiving and and power angle adjusted by fuel control to synch gen . How is load sharing done between to parrallel ups? Or two solar inverters? What principle they use to achieve this load sharing between inverter...
  2. Alms88

    Ev charger and battery

    I am designing and going to assembled EV charger . All component I am going to buy Planning to build 350kw charger with 12x30kw modules. Can somebody tell me or share some details How much kw typical EV battery can handle for fast charging? Ex. 50kwh battery can handle 150kw charging or...
  3. Alms88

    Battery watt-hour

    I found a battery PLX12-360 It says 360W per cell....12v How do convert this to common Ah ? In some document I saw 90Ah per battery no calculations How do you calculate this watt to aH? Please mention detail calculation Thanks in advance
  4. Alms88

    Service factor duration

    How long can motor stay in full Service factor? Everybody says for shirt time .. But short time means ? How many minutes or seconds? If you motor 40kw and service factor 1.15 How do you set the thermal overload without RTD Thanks in advance
  5. Alms88

    comtrade file for protection simulation

    any body know how to creat comtrade fies from ETAP i have modeled network, i want to run fault and generate comtrade files to be used in omicron transplay
  6. Alms88

    Opzv battery leak

    What are the possible cause of leaking of opzv batteries I have battery bank with opzv 200 powersafe enersys.
  7. Alms88

    LV Breaker TCC

    Does Same rating MCCB from different OEM will have same trip curve For example OeM A : 80amps , thermal magnetic, 25ka ice,0.69ui Other parameters Oem B :80amps , thermal magnetic, 25ka ice,0.69ui Will the curves of this OEMs identical ???? My doubt is actually? Does thermal curves of...
  8. Alms88

    MCCB trip curves

    Hi is there any online or free tools that can generate the trip curves of different manufactuere MCCBs?? i want to compare some trip curves in a single sheet , for example, i choose , manufactuere, then breaker model , then it display curves, then i choose second breaker like this,? i cant...
  9. Alms88

    Diesel Gen AVR

    Hi Why there is no setting available in Diesel generator(any oem) (in my case size is 2000kva 415) AVR (any OEM) related to Capability curve of alternator , ???
  10. Alms88

    Modbus tcp redundancy path

    Hi I have PLC which has to transfer some reading via modbus TCP IP to remote scada, In my PLC I have only 1 RJ45 , But Scada guy wants 2 ethernet cables from me one as failover redundancy. How can I do this with switch ?? Can someone suggest a switch model and technology required for this...
  11. Alms88

    4 WIRE MODBUS RS 485

    Can make daisy chain loop with 4 wire rs 485?
  12. Alms88

    4 wire modbus RTU

    Hi Can someone help? Is 4 wire rs 485 and rs 422 same???? I mean rs 422 alternative name for 4 wire rs 485????? Can I connect a 4 wire rs 485 modbus slave to rs422 master port ???? Thanks in advance
  13. Alms88

    Soft starter cable sizing thump rule

    What is the simple thump rule to calculate cable size for DOL starter and soft starters Motor is 315Kw, 568 FLA, LRa= 3000amps Soft starter will be voltage ramp from 65% to 100% 10 seconds Thanks
  14. Alms88

    Urgent/415V soft starter in lv side of step up Transformer

    I am in very urgent situation to start a 3.3kv motor , I have 1500kva source 415V to 3.3KV step up transformer 3.3kv 425kw motor. I cant buy 3.3kv soft starter now .. I have 415V , 2000amps soft starter , Can I install the soft starter in 415V side of step up transformer and control the...

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