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Normally, double star ungrounded neutral capacitor banks with series parallel capacitor units are used in 33KV system of electrical power substations of different utilities. Before going to the detail protection scheme of double star ungrounded 3-phase capacitor bank, we may recall the connection configuration of a double star ungrounded capacitor bank. Connection Diagram of Double … Read more
In substations, we always see some reactors connected in series with the capacitor bank. First, the capacitor bank is connected to the system bay through a circuit breaker and an isolator. After the capacitor bank, a reactor is connected in series with each branch of every phase of the capacitor. Understanding the Inrush Current Now, … Read more
Why do we use capacitor banks in the system? Generally, these capacitor banks are connected in 33 kV systems. Normally, in a 33 kV system, we use a double star ungrounded capacitor bank. Before discussing the actual connection configuration of a double star ungrounded capacitor bank, let us recall the benefits of a capacitor bank in a … Read more