Which device is used to manage reactive power to support voltage stability in a substation?

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Multiple Choice

Which device is used to manage reactive power to support voltage stability in a substation?

Managing reactive power is how voltage stability is kept as loads change. Capacitors and reactors provide this control by supplying or absorbing reactive power in a substation. Capacitors deliver reactive power to raise or support voltage, while reactors absorb reactive power to dampen voltage rises and help keep voltages within limits. They’re typically connected in shunt banks and switched in or out as needed by control systems to maintain stable voltages. Transformers adjust voltage levels but aren’t the devices used primarily for reactive-power management, circuit breakers are protective switches, and batteries can provide energy storage but aren’t the standard tool for reactive-power control in this context.

Managing reactive power is how voltage stability is kept as loads change. Capacitors and reactors provide this control by supplying or absorbing reactive power in a substation. Capacitors deliver reactive power to raise or support voltage, while reactors absorb reactive power to dampen voltage rises and help keep voltages within limits. They’re typically connected in shunt banks and switched in or out as needed by control systems to maintain stable voltages. Transformers adjust voltage levels but aren’t the devices used primarily for reactive-power management, circuit breakers are protective switches, and batteries can provide energy storage but aren’t the standard tool for reactive-power control in this context.

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