An innovative method to conduct temperature rise test on medium voltage switchgear assembly based on IEC standards in a power grid

Abstract

Modern civilization is characterised by a high need for electrical energy. The importance of electricity in daily life has grown to the point that it is desirable to safeguard the power system from damage during fault situations and to ensure maximum supply continuity, which necessitates the use of switchgear. Testing of any electrical equipment indicates the extent to which the equipment is able to comply with a customer's requirements. In this paper temperature rise test on a medium voltage switchgear assembly is considered. In this research, sub-clause 6.5.2 of IEC standard 62271-1 is followed to conduct temperature rise test on a medium voltage switchgear assembly. The test is conducted on two modes, first following the existing method of testing and second by an innovative method of testing. The temperature rise test is conducted on a 12 kV, 50 kA, 3150 A single busbar switchgear assembly and the readings are measured, analysed and compared between the two methods. It is concluded that the temperature rise recorded following the innovative method is more accurate compared to the existing method, as an increase in the recorded temperature rise is seen in all the thermocouple locations as the heat dissipation to the ambient is reduced.

Rancang Bangun Sistem Monitoring Suhu dan Kelembapan serta Kendali Dua Heater pada Kubikel 20 kV Berbasis Sistem Informasi Geografis

“…Menurut standart IEC 62271-1 serta datasheet kubikel merek Schneider, bahwa suhu yang aman pada saat kondisi normal adalah sebesar 35℃ dengan nilai suhu maksimal yang diizinkan sebesar 40℃. Sedangkan untuk nilai rata-rata kelembaban relatif selama 24 jam tidak melebihi 95% dan nilai dalam jangka satu bulan tidak melebihi 90 % [10].…”