Satish Samineni

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A shipboard power system is a stiff, isolated power system. Power is generated locally, and distributed over short distances making the system vulnerable to transients. Power quality problems such as voltage sags, which arise due to a fault or a pulsed load, can cause interruptions of critical loads. This can be of a serious concern for the survivability of(More)
Shunt capacitor banks (SCBs) are used in the electrical industry for power factor correction and voltage support. Over the years, the purpose of SCBs has not changed, but as new dielectric materials came to market, the fusing practices for these banks changed from externally fused to internally fused, fuseless, and finally to unfused [1]. This paper gives a(More)
Capacitor banks are critical substation assets that play a vital role in providing reactive power support, thereby increasing the power system capacity. High-voltage capacitor banks are constructed as single-wye, double-wye, or H-bridge configurations and can be grounded or ungrounded. Capacitor banks consist of a number of single-phase capacitor units(More)
Because of stator winding construction, an insulation failure is more likely to result in a winding-to-ground fault than in a phase-to-phase fault. Other failures, such as a broken conductor or turn-to-turn fault, may not be detected until the fault develops into a winding-to-ground fault. Consequently, stator ground fault protection is one of the(More)
A number of generator issues are undetectable using the generator terminal voltage or current measurements. For example, a switching element failure in the exciter produces a characteristic harmonic signature in the field current. While some generator protective relays are capable of measuring the field current, the sampling rate may be insufficient to(More)
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