why corona ring is used in out door switchyard lightning
arrestor
Answers were Sorted based on User's Feedback
Answer / sunil guru
corona is the function of partial discharge of air near the surface of the conductor due to high voltage (in kv) and high voltage above rated is possible only due to switching over voltage or lightning over voltage so the corona ring is provided near switch yard lightning arrestor
Is This Answer Correct ? | 15 Yes | 6 No |
Answer / hardik bhesaniya
Corona is a effect of Extra High Voltage either due to switching over voltage or sue to lightning over voltage. The role of the corona ring is to distribute the electric field gradient and lower its maximum values below the corona threshold, preventing corona discharge.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / prashant singh
because corona is generated in out side, it meanse through
out the atmospheare, so we use corona ring in out door
switchyard. if we will know abought the corona so we can
give easily of this question.
Is This Answer Correct ? | 2 Yes | 25 No |
what is transient earth voltage
-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
What device is use for metering current at lt consumer end..??
what is the disadvantage of leading power factor...why can't we use it (pf=0) for a long period of time?
What are the difference between CT/PT operated Meter and RRAMR Meter for HT/LT application?
A 230 v dc series motor is connected to 230 V ac supply, then
wat's the procedure to take short circuit current for cable selection
What is dynamo?How it works and what is the function of dynamo in a DG.
1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?
i have DEEE certificate in vinyaka misson unive rsity. is a INGNO if possible get the electrical C licences in Tamil nadu?
how to introduce yourself
What is the difference between rated and per unit in transformer?