IEC 60051-9

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IEC 60051-9 -$72$ D$ EF C)% &? 14 @ AB$ Z' I2$ 1$ -2$ 1$ IM2F I1%< %-U /% < 75& &%2F$ 7^ N2 ! - &$ $0
IEC 60051-9:1995-01, Direct acting indicating analogue electrical measuring instruments and their accessories Part9:Recommended test methods Sub clause No. Clause Title Applicable Clauses 3.11 Variation due to battery voltage(for ohm meter only) 3.12 Variation due to unbalanced cuurents(for Watt & Var meter only) 3.13 Variations due to conductive support 3.14 Variations due to electrical field of external origin 3.16 Variation due to interaction between the different measuring elements of polyphase instruments 3.17 Variations due to auxiliary supply voltage 3.18 Variations due to auxiliary supply frequency 4.1 Limiting value of temperature 4.2 Overshoot 4.3 Response time 4.4 Overloads of short duration for instruments 4.6 Continuous overloads for instruments 4.8 Current circuit continuity after high current overload(for Ammeter only) 4.9 Deviation from zero 4.10 Effects of vibration and shock (for classes equal &greater than 1) 4.11 Drop-out difference frequency for synchroscope 4.13 Open circuit for synchroscope 4.14 Self-heating 4.15 Ohmmeter maximum current(for ohm meter only) 4.16 Voltage circuit(s) only energized(for Watt & Var meter only) 4.18 Range of mechanical zero adjustment 4.19 Permance of marking Back Email : t&d@nri.ac.ir
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IEC 60051-9

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