“A Stitch in Time...”

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Megger MIT200 Series Need only basic 1 kV insulation and continuity testing, with economy a paramount consideration? No need to sacrifice! Megger offers the only top quality line of inexpensive testers on the market... the MIT200 Series. Though designed with economy in mind, these testers offer no loss of the quality and reliability that the name Megger implies. Furthermore, there has been no sacrifice of safety, which is a serious problem with inexpensive testers that have cut cost at the risk of arc flash and operator error. Megger MIT230 Four models are available, differing only in the test voltages offered: MIT200 is a 500 V model for standard applications; MIT210 is a 1 kV model where higher test voltage is in order; MIT220 offers two voltages, 250 and 500, for more sensitive applications where a 1 kV test is to be avoided; for full-spectrum applications, MIT230 offers all three voltages, 250, 500 and 1 kV. A STITCH IN TIME 65
Megger makes more than just insulation resistance testers Megger also makes high quality instruments for the following electrical testing applications: n Earth/Ground Testing n Relay Testing n Oil Testing n Circuit Breaker Testing n Power Quality Analysis n Low Resistance Testing n Battery Testing n Watthour Meter Testing n Transformer Testing n Cable Fault Testing n Power Factor Testing n Hi Pot Testing Megger manufactures electrical test and maintenance instruments for electric power, process manufacturing, building wiring, engineering services and communications. Visit our website for local assistance at www.BiddleMegger.com. MeterCenter - 2046 W. Peninsula Circle, Chandler, AZ 85248 (800) 230-6008 The 66 word A STITCH “Megger” IN is TIME a registered trademark. MEG-486/MIL/4M/Rev E/2/2006
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“A Stitch in Time...” US $9.95
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Contents Page WHAT IS “Good” in
Page 5 and 6:
Common sense tells us that the more
Page 7 and 8:
The generator can be hand-cranked o
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FACTORS AFFECTING INSULATION RESIST
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With a background now of how time a
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Figure 7-Typical behavior of insula
Page 15 and 16: Fig. 9 shows how a 60-second test w
Page 17 and 18: test Voltage vs. Equipment Rating C
Page 19 and 20: In summary, DC test sets are employ
Page 21 and 22: Figure 10-Typical drying curve wher
Page 23 and 24: Note that the resistance is almost
Page 25 and 26: The aforementioned statement assume
Page 27 and 28: SAFETY PRECAUTIONS Observe all rule
Page 29 and 30: 1. AC Motors & Starting Equipment F
Page 31 and 32: Connections at the main power board
Page 33 and 34: 7. Power Transformers Figure 19 Con
Page 35 and 36: Instructions for Use The untagged e
Page 37 and 38: Interpretation-Minimum Values Insul
Page 39 and 40: Minimum Values for Insulation Resis
Page 41 and 42: These standard minimum values (for
Page 43 and 44: Values of C at 20°C 60-Hertz 25-He
Page 45 and 46: 44 A STITCH IN TIME Values of Log 1
Page 47 and 48: To better understand the technique
Page 49 and 50: Step-Voltage Method In this method,
Page 51 and 52: You only need to keep the test volt
Page 53 and 54: There are also cases, such as found
Page 55 and 56: The highest accuracy is desired in
Page 57 and 58: Figure 33-Connections for testing i
Page 59 and 60: Figure 35-Step 1 Figure 36-Step 2 5
Page 61 and 62: Setting up a Maintenance program To
Page 63 and 64: Megger 5 kV & 10 kV Insulation Test
Page 65: Megger MIT300 Series The MIT300 Ser
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“A Stitch in Time...”

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