Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
In SR compensator the slope correcting capactor is connected in ______________ with saturated reactor.
series
parallel
series
In a Saturated Reactor (SR) compensator, a slope-correcting capacitor is connected in series with the saturated reactor to improve the V-I characteristics. This arrangement compensates for the inherent leakage reactance of the saturated reactor, effectively flattening the voltage-current characteristic curve.
In a Saturated Reactor (SR) compensator, a slope-correcting capacitor is connected in series with the saturated reactor to improve the V-I characteristics. This arrangement compensates for the inherent leakage reactance of the saturated reactor, effectively flattening the voltage-current characteristic curve.
XeqтАЛ=XLтАЛтИТXCтАЛ
VoutтАЛ=I├Ч(XLтАЛтИТXCтАЛ)
The saturated reactor by itself has a steep positive slope due to its leakage reactance. By placing a capacitor in series, the capacitive reactance provides a negative slope that offsets the inductive reactance of the reactor. This results in a nearly horizontal V-I characteristic, allowing the device to maintain constant terminal voltage under varying load conditions.
Used in static VAR compensation for voltage stabilization.
The capacitor cancels the effect of leakage inductance.
Improves the regulation of the saturated reactor.
Crucial for high-speed dynamic reactive power compensation.
Improved V-I regulation
Effective voltage stabilization
Self-regulating behavior
Risk of ferroresonance
Requires high-voltage capacitors
Limited operating frequency range
Power transmission line voltage control
Industrial furnace stabilization
Without the series capacitor, the SR would have an unavoidable slope, leading to poor voltage regulation as load current increases.
Option B is incorrect because a parallel connection would not provide the necessary reactive impedance cancellation required for slope correction.
A is correct тАФ The slope-correcting capacitor is connected in series with the saturated reactor to neutralize the leakage reactance slope.
Always remember that in power electronics, series compensation typically modifies impedance (slope/reactance), whereas parallel (shunt) compensation is primarily used for voltage magnitude control.