A Method for Measuring Transient Switching Overvoltage Case study: Electricity network of Imam Khomeini Airport City

Subject Areas : Communication

Mojtaba  Rabiei ¹ (Department of Electrical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran)
Seyed Mohammad Hassan  Hosseini ² (Department of Electrical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran)

Received: 2019-01-20 Accepted : 2019-04-29 Published : 2019-09-01

Keywords: Transient overvoltage, EMTP simulation, transient overvoltage measurement,

Abstract :

Transient voltage increase in electricity networks is of great importance due to security of devices and insulation considerations. One of the factors which results in transient voltage increase is connection switching. This overvoltage cannot be measured and recorded via usual measurement devices. In this study, possibility of using power quality analyzer for recording and measuring transient overvoltages is studied. To this end, switching in a 20KV electricity network in Imam Khomeini airport city is simulated using EMTP-RV. Then, real switching is performed and overvoltage is measured by power analyzer. Then, these two methods are compared.