NETA ETT Certified Level 3 Questions and Answers Graded A+

NETA ETT Certified Level 3 Questions and Answers Graded A+ A newly installed 4160V emergency generator has an insulation resistance value of 150 Megohms after one minute with an equipment temperature of 32 degrees C. Is this value acceptable per NETA standards? No NETA ATS-2017 Table 100.11 Know the NETA-ATS Insulation Resistance tables Which test method measures Hydrolyzable Flouride content in SF6 gas? ASTM D2284 [Standard Test Method for Acidity of Sulfur Hexafluoride] NETA ATS-2017 Table 100.13 Know the ASTM test names what what they test The operating speed of a protective relay is dependent on: * Spring Tension * Armature core air gap * Rate of flux built up This was originally a 'not question'. This list is not necessarily conclusive. It's simply the 'incorrect' answers to the 'not question'. According to IEEE C57.106, which test is recommended for routine acceptance of new, unprocessed oil from a supplier for use in circuit breakers? ASTM D877 [Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes] dielectric-breakdown-voltage/ Know IEEE C57 information. Know ASTM tests and definitions Meter Sockets and meter disconnect switches should generally be connected on what side of a service disconnecting means? The line side NFPA 70-2017 Article 230.82(3) C?sectionID=40.0 This was originally a True/False statement question. The answer stated that the load side is wrong. The reference above seems to imply that meter sockets and meter disconnect switches should generally be connected on the line side. Know NFPA 70 What size neutral resistor would be required to limit the fault current of a 13,800- 480Y/277V 1500kVA Transformer to 5A? 55.4 Know Ohm's Law. 277 V / 5A = 55.4 ohms I believe that since this is dealing with the neutral, Line-Neutral voltage (277 V) should be used in the formula. 5 A on the line will also be 5A on the windings since the transformer configuration is a Wye configuration. I also believe that the impedance of the transformer is negligible in this calculation since it isn't mentioned in the question and presumably would only limit the fault current further. Correcting the power factor of three-phase loads normally involves adding (capacitance, inductance) in (series, parallel) capacitance in parallel Typically, power factor is offset by increased inductance. Adding capacitance in parallel corrects this. The voltage induced into the armature of a DC motor is known as the: CEMF [counter-electromotive force] As a battery cell starts discharging, internal