Communiquez avec les autres et partagez vos connaissances professionnelles

Inscrivez-vous ou connectez-vous pour rejoindre votre communauté professionnelle.

Suivre

While operating a diesel power plant in grid mode, if the grid voltage is much less that the expected what adverse impacts can it cause on generators?

user-image
Question ajoutée par SATISH MANJREKAR , Field Operations Manager , Al Khorayef
Date de publication: 2013/09/09
ashraf said ahmed mohmed yousef
par ashraf said ahmed mohmed yousef , فنى ممتاز , شركه كهرباء القاهرة

عمليات توليد الطاقه بواسطه البخار عند طغوط مرتفعه وحرارة عالية

hamdy salama
par hamdy salama , plant manager , KHARAFI COMPANIES GROUP

it wil icrease the capacitive lead to the generator tend to over heated to the generator winding /it couled be damaged ater time

Himadri Roy
par Himadri Roy , MANAGER ELECTRICAL , STEAG ENERGY SERVICES

When your DG set is parallel with Grid. And Grid Voltage is low, that means you need more excitation voltage.For that you need MRN2( Mains Decoupling Relay,with Under Voltage/Frequency,Over Volage/frequency) & MRG2( Vector Surge relay).If the vector angle between DG Voltage & Grid Voltage is more than7 Degree/more & your DG Set is in Outof-synchronism Condition but still connected with Grid.Dg rotor angle will increase,rotor will be heated/vibration occured,etc.You need to be Isolated if that type condition will occur.

GULAMMOHMED BHA
par GULAMMOHMED BHA , electrical engineer , British Petroleum J V Project with Petrofac-China Petrol.

Your generator will trip on reverse power.

Leonardo Banzali
par Leonardo Banzali , Electrical Maintenance-trainer , Sadara Chemical Company

Your operating Gen sets will be running in lower line voltage and in too much lagging power factor and if you will compensate on higher excitaton voltage, the more lagging power factor will come to your entire system and might affect your own station loads.

mahmoud mohamed metwaly
par mahmoud mohamed metwaly , LEAD TESTING AND COMMISSIONING ENGINEER , AL-BABTAIN CONTRACTING COMPANY

You should read about circulation current that will flow throw the machine..before its out of synchronism

 

More Questions Like This