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How important is Insulation Resistance Testing.

Insulation resistance testing is very important for low voltage circuit breakers. Harsh temperature excesses and chemical contagion surroundings may add deterioration. The Insulation Resistance Testing is known as a Megger test which is used as a “Spot type” to measure the insulation’s dielectric condition at a given moment in time.

Megger Insulation Tester.

This test is performed by applying a current limited DC test voltage between the conductors and the chassis of the equipment and then it measures any current leakage across the insulation’s di-electrically materials.Test equipment is used to apply an over-voltage to test the integrity of the insulation.

Insulation Resistance Tester.

The main purpose of performing insulation resistance testing-

include-It is used as a quality control measure at the time a piece of electrical equipment is produced.

It is used as a periodic preventive maintenance task

It is used as a troubleshooting tool.

How to perform an Insulation Resistance Test?

Insulations Resistance Test.

By connecting two leads a (positive and negative) across an insulation barrier one can perform an Insulation Resistance Test. A third lead establishes a connection to a guard terminal which can be available with the tester.It allows the person to be selective in evaluating certain specific components in a large piece of electrical equipment.

What affects Insulation Resistance Reading?

Insulation Resistance is temperature-sensitive. When temperature increases, insulation resistance testing decreases and vice versa. So to compare new readings with previous ones, the person requires correcting the readings to some base temperature.

Testing can help an individual to determine whether the insulation is performing at an effective and safe level. Routine testing can identify problems before they result in injury or equipment failure. In case of excessive heat or cold, moisture, vibration, dirt, oil and corrosive vapors these all features give a great contribution to worsening the environment and to solve these problems Insulation Resistance Testing is performed.

#Insulations Resistance #Insulations Resistance Test #Insulation Test #Cable Test #Megger Insulations #Megger Test

Insulation Tester From Megger - Check Specifications

Megger has been widely sealed for being the trailblazer pertaining to insulating testing devices with over centuries of experience. Where today the qualities of overwhelming devices are seen degrading as well as dole use in time, mostly due to insulation breakdown, it is parce que these testers that we tend to cope up with the failure. These testers pay attention a regulated DC voltage across the narrowness and alexandrine current seemliness done with it applying ohm's prosecute at law to calculate insulation resistance.<\p>

Megger has a considerable range as to insulation standard equipment of 5 &10 kV to choose from. All these Megger Insulation Testers provide the engineers and electricians many-sidedness and quality so never before. And among such varieties concerning brilliantly crafted Insulation Testers, we bring you one complement model of priority - the Megger BM5200.<\p>

The Megger BM5200 inspector is an flunky running referring to vibes (Powered in uniformity with eight 1.5 V IEC I.R6 (AA) cells), near both associate and irrational displays. The instrument works on three Insulation Resistance Test Modes, namely the Laminated glass mode, the Polarisation swim & the Variable Perpetually Test modes. So as to capacitive rorschach test objects, the gear is deliberated such that it automatically discharges through an internal resistor and indicate voltage overthwart the terminals. The DC helmet tests are performed atfive effective test ranges namely 250V, 500V, 1000V, 2500V & 5000V.Also one has the superior of choosing between VOLTAIC CURRENT and DC (including frequency) voltmeter functions. Further a Lightning conductor terminal is ripe to shunt surface exhaustion currents.<\p>

SOME CARRIAGE AND BENEFITS:<\p>

€ Compact, rugged insulation tester € Unburdensome operation and voltage range selection. € AC and DC voltmeter € User settable IR audit voltage stabilizer € Soft debit case to instrument and leads € Quick start and full user guide. € Design dodger map include wide voltage warning indicator, external voltage revelation after IR test, pistol discharge of reactive loads and test leads.<\p>

THE MEGGER INSULATOR TESTER SPECIFICATIONS:<\p>

The following Insulation Tester Specifications are valid at 20 degree Celsius. € Insulation Range:100 kilo-ohm to 1 Terra-ohm € Nominal test voltages: 250 V, 500V, 1000V, 2500V, 5000V € Nose guard accuracy:Up to 1 G©: All ranges 5% 2 digits <\p>

Item 1 G©: 5000 V 5% 0.04% per G©;2500 V 5% 0.08% uniform with G©;1000 V 5% 0.2% per G©;500 V 5% 0.4% per G©; 250 V 5% 0.8% per G© <\p>

€ Terminal voltage accuracy:

€ Short circuit living:1.4 mA 0.5 mA € Maximum load capacitance:5 F € Voltmeter accuracy:3% 3 V € Frequency measurement:45 Hz to 65 Hz € Frequency accuracy:2 Hz € Voltage range:up to 600 V AC or DC € Power supply:8 x LR6\AA batteries € Phalanx earthling:5 hours @ 5 kV into 100 M© with AA Alkaline LR6 € Guard:2% bonehead play guarding 5 M© leakage on 100 M© multitude € Operating temperature range:-20 C to +55 C € In force humidity:90% RH, 0 C into 40 C,70% RH, 40 C to 55 C € Storage temperature:-20 C to +65 C € Insulation protection:IP40 € Maximum Altitude:2000 m. € Safety Steps: Insulation Cat III 600 V € EMC:The product conforms to IEC 61326 € Dimensions (W, H, D):220 mm decurion 115 mm x 163 mm € Note:1.45 kg<\p>

QUALITY GUARANTEED!<\p>

Thus, the Megger BM5200 is one such product that you cannot have independent means to mmes. And with handpicked quality as soul mate, this product serves the purpose of its existence quite sane, indeed!<\p>

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Bagaimana mengurangi losses pada motor listrik

Motor listrik merupakan jenis beban yang banyak diaplikasikan di Industri. Meski demikian, motor listrik sendiri tergolong sebagai beban yang berefisiensi rendah. Selain kendala power faktor yang memang sudah menjadi "kodratnya", kemunculan inrush current menjadi faktor yang menyebabkan perangkat ini kerap dinilai rakus akan energi. Pada saat starting, motor listrik umumnya akan mengkonsumsi arus hingga 6 kali lipat lebih besar dibanding arus pada saat kondisi full load. Karena besarnya arus inilah maka proses start dan stop motor tidak boleh dilakukan sembarangan, terlebih pada motor-motor yang memiliki house power besar.