NDLI: Assessment and control of ignition risk of HT induction motor for increased safety Ex ‘e’ as per Indian standard for explosive atmospheres

Content Provider	IEEE Xplore Digital Library
Author	Ahirwal, B. Chaterjee, T.K. Singh, A.K.
Copyright Year	2011
Description	Author affiliation: Flame & Explosion Laboratory, Central Institute of Mining and Fuel Research (CSIR), Dhanbad- 826 015, INDIA (Ahirwal, B.; Singh, A.K.) \|\| Electrical Engineering Department of Indian School of Mines, Dhanbad-826001, India (Chaterjee, T.K.)
Abstract	It is very difficult to manage ignition risk by operational procedures to ensure that there has not been a hazard gas release in the area prior to starting the motor or and stator sparking which may occur during running; this procedure may be less appropriate than an automatic interlock. As per Indian Standard rotor cage potential sparking and potential stator winding discharge of induction motor are to be considered for risk assessments of increased safety motor. Risk assessment is done based on construction, operation, protection, and environmental conditions of the motor and ignition risk factor are assigned based on its characteristics. The sum of assigned risk factors should not be more than 5. If it is greater than 5 the motor should be type tested where no incendive sparking should occur during ignition risk assessment test for Ex ‘e’ motor. The paper discuses about the control of ignition risk and assessment of risk factor. The paper also describes the ignition risk assessments test of HT (High Tension) Ex ‘e’ motor as per Indian Standard, conducted successfully first time in India by Central Institute of Mining and Fuel Research Institute (CIMFR), Dhanbad jointly with Bharat Heavy Electricals Limited, India.
Starting Page	1
Ending Page	5
File Size	139610
Page Count	5
File Format	PDF
ISBN	9781612846873
e-ISBN	9781612846866
DOI	10.1109/PSES.2011.6088251
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impulse Voltage Test Induction motors Stator windings Rotors Ignition Insulation System Ex e HT Motor Explosives High Voltage Test
Content Type	Text
Resource Type	Article

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