VFD I/O CONFIGURATION DETAILS | DI, DO, AI, AO CONFIGURATION | HOW TO CHECK POWER | CONTROL WIRING

[@maniraj4595]

Vera level anna

[@tamilselvan8784]

Super bro well

[@vickytwentythree]

Sir need Alternator protection please??

[@electricnmore3398]

Ok

[@vickytwentythree]

U working in powerplant??

[@electricnmore3398]

Yes

[@farukpatel3049]

explanation good but im from gujrat so launguge not undastand

[@prakashksp2918]

Transformer oil name:
Naphatnenic based oil flash point high or low?
Paraffinic based oil flash point high or low?

[@prakashksp2918]

Intha profile kku match job unga company la vacancy irukka please help me sir
Diploma in Electrical and Electronics Engineer(DEEE) Electrical "C" License Competency Certificate,TNLB With six Year experience I have Been Working in the Utility Maintenance of substation & Operation maintenance at Lucas tvs under Voltech engineering
My roles and responsibilities are
33kv/11kv(5800kva).and 11kv/433v (1000kva) transformer Operation and Maintenance.
* 380v/11kv(1250kva) 1.2Mwp Solar step up transformer Operation and
Maintenance
* 33kv sf6s,11kv vcb,415vAcb&ocb switchgears Operation and Maintenance
* Operation and Maintenance of 1000 KVA Captacitive Diesel Generator sets
* 1000kw Inverter operation and maintenance
* 5800kva Demand control, Day ? to - day Electrical Breakdown attend and
Preventive Maintenance
* Installation of 11KV / 433 Volts, 1000 KVA, Transformers in LTVS, Padi.
* Installation and commissioning of Lighting system in shop floor & Peripherals and
utility equipments like Compressor, Pumps and Cooling towers.
* winding test and continuity testing
* Monitoring electrical parameter of the solar plant
* Pump and Blower maintenance.
* Earth bit maintenance and checking earth pit resistance value
* Energy saving activities implementation saved 1500Kwh Energy per day.
* All types of relay testing like Voltage Relay, Current Relay, Earth Relay

[@prakashksp2918]

Dear sir:
1.under voltage realy (uv)
Uv voltage value-Voltage%-tripping milli second
2.over voltage realy (ov)
Uv voltage value-Voltage%-tripping milli second
3.over current realy (oc)
Oc current value-current%-tripping milli second
1.IDMT realy ( inverse definite minimum time)
Oc current value-current%-tripping milli second
2. Instantaneous realy
Oc current value-current%-tripping milli second
3. definite Time realy
Oc current value-current%-tripping milli second
4.Earth fault realy ( E/F)
Fault current value-current%-tripping milli second
1.Ref realy ( Restricted earth fault)
Fault current value-current%-tripping milli second
2.Sef realy ( sensitive earth fault)
Fault current value-current%-tripping milli second
5. Differential realy
Different current value-current%-tripping milli second
6.buchholz realy (Buc)
Minimum pressure valve alarm- Maximum
pressure valve trip
7.pressor realise value (Prv)
Minimum pressure valve alarm- Maximum
pressure valve trip
8.Winding temperature (Wti?
Minimum temp alarm- maximum temp trip
9.oil temperature (Oti)
Minimum temp alarm- maximum temp trip
10. Magnetic oil Gage (Mog)

[@electricnmore3398]

1) 1.under voltage realy (uv)
Uv voltage value-Voltage%-tripping milli second
0.9 times, 1 to 3 sec
2.over voltage realy (ov)
OV voltage value-Voltage%-tripping milli second
1.1times, 1to2sec
3.over current realy (oc)
Oc current value-current%-tripping milli second
1.IDMT realy ( inverse definite minimum time)
Oc current value-current%-tripping milli second
1.1times, 150msec
2. Instantaneous realy
Oc current value-current%-tripping milli second
1.5 to 3 times, 100mSec
3. definite Time realy
Oc current value-current%-tripping milli second
1.5 times, 200mSec
4.Earth fault realy ( E/F)
Fault current value-current%-tripping milli second
1.Ref realy ( Restricted earth fault)
Fault current value-current%-tripping milli second
0.1times, 50 to 100mSec
2.Sef realy ( sensitive earth fault)
Fault current value-current%-tripping milli second
0.1 to 0.15times, 50 to 100 mSec
5. Differential realy
Different current value-current%-tripping milli second
0.05times, 50mSec
6.buchholz realy (Buc)
Minimum pressure valve alarm- Maximum
pressure valve trip
see my video for transformer protection
7.pressor realise value (Prv)
Minimum pressure valve alarm- Maximum
pressure valve trip
see my video for transformer protection
8.Winding temperature (Wti?
Minimum temp alarm- maximum temp trip
80 alarm, 95 trip
9.oil temperature (Oti)
Minimum temp alarm- maximum temp trip
90 alarm, 110 trip
10. Magnetic oil Gage (Mog)
mog for only alram circuit
this all are approximate value defend up on the application may be changed