Congratulations on your purchase of the extech 380395 120v or 380396 220v high voltage. Propylene based systems for high voltage cable insulation applications article pdf available in journal of physics conference series 1831 august 2009 with 172 reads how we measure reads. Measure insulation resistance to 60g large 6000 count display with bargraph and backlight. Data collection is easy using the fluke connect wireless app. By injecting a known dc voltage lower than the voltage for dielectric testing and then measuring the current flowing, it is very simple to determine the value of the resistance. Extech 380363 digital high voltage insulation tester. It is commonly used in the industry for acceptance testing prior to energizing the cable and for maintenance testing programs. The 380395 is a high voltage digital insulation tester 110volt. As a safety feature, the insulation tester acts as an acdc voltmeter to measure the absence of voltage in networks up to. Pdf design of a highvoltage intelligent insulation. Design of a highvoltage intelligent insulation resistance tester.
High voltage testing 149 the high voltage is applied across the device under test by means of a transformer. It was a test instrument used by electricians called an insulation tester which is an ohmmeter with a high voltage internal battery. Rated 5 out of 5 by dr zod from fluke 1587c i have purchased fluke equipment in the past, so it was only natural to go to fluke again when i wanted an insulation tester. Tests voltages of 500volt, 1,000volt, 2,500volt, and 5,000volt. Testing of high voltage cables manual horizon power. Hipot test is the most common type of electrical safety test.
Rated insulation rms voltage v 600 basic insulation according to iec 624971 cat iii, pd2 application example rated insulation rms voltage u nm v 500 reinforced insulation according to iec 624971, cat iii, pd2 operating voltage v insulation according to ul 508, cat ii, pd2 between primary and ground clearance d ci mm 9. Large 6000 count display with bargraph and backlight. Shutter mechanism use the logarithmic bar graph display for analog measurements. Although insulation systems have evolved significantly since then, the need to test them never goes away. Earliest tests on insulation systems involved applying a dc voltage across the insulation and measuring the leakage, or resistive current, through it. In automotive engineering, high voltage is defined as voltage in range 30 to vac or 60 to 1500 vdc. Ac high voltage insulation testers high voltage insulation testers indicate breakdowns, grounds, and shorts. High voltage cable insulation resistance measuring using. We are offering a wide range of digital high voltage insulation tester dit5100 which is used for monitoring, analysis, detection, measurement and testing of various equipment on the basis of physical, electrical, chemical and other parameters. Be careful when working above 30v ac rms or 30v dc.
Discharge all circuit loads under test after measuring high voltage. Metriso prime highvoltage insulation tester for battery. The dielectric voltage withstand test is commonly known as the hipot test. This type of supply ranges from 5 kv to about 30 kv. The complete guide to electrical insulation testing. Buy extech 380363 digital high voltage insulation tester. Test sets are now available that will allow testing to be carried out at voltages up to 15 kv.
Designed to verify that the insulation of a product is adequate enough to withstand high voltage. High voltage insulation testers for the power industry. We are engaged in providing the most advanced quality range of electric high voltage tester which is highly compact and portable. Filter function reduces noise interference for obtaining stable measurement.
High voltage insulation testers kew 3125a insulation resistance up to 1t. The megger insulation tester is essentially a highrange resistance meter. Hvts7050 ac and dc hipot tester kharkovenergopribor. As a safety feature, the insulation tester acts as an acdc voltmeter to measure the absence of voltage in networks. This permits early detection of insulation weakness or failure that might otherwise show up only in the actual use. Highvoltage insulation tester for battery or hand crank generator operation features test voltages to 5000 v this instrument is suited for the nondestructive measurement of insulation resistance in electrical systems, at machines and transformers and in cables, as. The ir3455 is a 5range, 250v to 5000v digital insulation resistance tester offering up to 10t. When the insulation resistance test is completed, confirm the high pressure on the already tested object is discharged. Sep 19, 2018 high voltage cable insulation resistance measuring using megger. High voltage insulation tester 5kv insulation digital. The dielectric voltagewithstand test is commonly known as the hipot test. Suitable for analyzing the insulation characteristics of cables, transformers, motors, generators, high pressure switches, insulators, wiring installations, etc. Our complete product range of electric high voltage tester ensures smooth finish and it is dimensionally accurate in nature.
Insulation resistance measurement is based on ohms law. The megger insulation tester is essentially a high range resistance meter. Measures insulation resistances up to 1 t ohm simpsons model 505 high voltage insulation tester is capable of measuring insulation resistances from 10 kilohms to 1 teraohm with eight selectable test voltages up to 5000 v. Design of a high voltage intelligent insulation resistance tester. Megger the complete guide to electrical insulation testing.
By means of cascading, the size of the transformer and the insulation bushing. Hde brings a rich history of innovation, reliability and customer focus and will allow greenlee to offer a more complete product solution to power utility and electrical professionals. Do not use the insulation resistance tester if it is damaged or if metal parts are exposed. Use them to apply a high voltage test at various steps in the manufacture or repair of electrical products. High voltage cable insulation resistance measuring using megger. Autodischarge function and voltage output warning function.
Kyoritsu kew 3125a high voltage insulation tester duration. Complete with test leads, 8 x c batteries, 120volt ac adaptor, and heavy duty carrying case. Use them to apply a highvoltage test at various steps in the manufacture or repair of electrical products. Sep 10, 2008 insulation testing is often seen as the third core test and is usually preceded by an earth bond and a flash test. Testing at higher voltages can yield additional and more useful information about the condition of the test objects insulation, but using a voltage thats too high for a particular test object to withstand can seriously damage it. Testing at higher voltages can yield additional and more useful information about the condition of the test objects insulation, but using a voltage thats too high for a particular test.
Dc insulation tests are performed at 250 v, 500 v, v, 2500 v and 5000 v. Also, check the meter for cracks or missing plastic. Low voltage winding to ground threephase transformer the following 5 tests and corresponding wiring diagrams will completely test a threephase transformer. High performance insulation testers from the originators. Their utilities are very much beneficial for various industries and considering this fact. I would highly recommend it to anyone who is looking for a high quality tester. For good insulation, the resistance usually reads in the megohm range. A vlf hipot is an ac output tester with an output frequency of 0. Digital high voltage insulation tester with polarization.
This allows the user to prevent damage caused by attempting to measure insulation resistance while voltage is present. High voltage insulation tester 3125 kyoritsu pdf catalogs. The accelerating voltage for a television cathode ray tube may be described as extrahigh voltage or extrahigh tension eht, compared to other voltage supplies within the equipment. Applications are roughly classified into lowvoltage, highvoltage and ultra. The insulation resistance is indicated by the number of dots that appear onscreen. High voltage tester hv1 high voltage tester manufacturer. Performed by stressing the insulation of the product far beyond what it would encounter during normal use. Low voltage winding to high voltage winding and ground c. Kew 3125ahigh voltage insulation testersproductskyoritsu. Ensure that the test leads are firmly connected to the insulation resistance testers input terminals. The megger mit30 is a portable 30kv insulation tester that has been developed to undertake tests on ust. High performance features include bargraph, builtin memory, leak current and voltage testing, and dar and pi calculation capabilities to help shorten work time associated with field insulation testing.
Digital high voltage insulation tester kew 3128 microprocessor controlled high voltage insulation resistance tester with diagnostic functions. The r5002 performs a spot insulation test by applying a regulated and stabilized voltage to measure the amount of flowing current and then calculates resistance in order to evaluate insulation integrity. High performance features include bargraph, builtin memory, leak. High voltage insulation testers for the power industry low voltage insulation testers for the electrical contractor insulation resistance testers above 2. Hioki insulation resistance testers or megohmmeters feature allinone designs including builtin rugged cases and test lead storage compartments. If a very high voltage is required, the transformer is usually build up in stages by cascading.
Remote operation lets you spend as little time as possible in potentially hazardous zones. The highvoltage insulation tester has been designed according to the safety standards of en610101, en610102030, cat iii v, cat iv 600v and pollution 2. Accumulation of moisture avoid any accumulation of moisture on the tester, on the measurement cables or. If it doesnt, check the circuits to be tested with a voltage tester to make sure they are not live. Understanding insulation resistance testing pdf 0712 technical assistance 800 34391. Users manual digital high voltage insulation tester model 380375. If you are testing insulation resistance to ground, place. Place the test leads in the proper input terminals. I have been extremely happy with the construction, durability, and ease of use. Reed instruments digital high voltage insulation testerr5002.
Low voltage insulation testers for the electrical contractor. Pdf design of a highvoltage intelligent insulation resistance tester. High voltage insulation tester for battery or hand crank generator operation features test voltages to 5000 v this instrument is suited for the nondestructive measurement of insulation resistance in electrical systems, at machines and transformers and in cables, as well as within the electrical equipment. The accelerating voltage for a television cathode ray tube may be described as extra high voltage or extra high tension eht, compared to other voltage supplies within the equipment. This high voltage insulation tester is capable or testing voltages up to 5000volt and measures insulation resistance up to 60g. Indication of output voltage and discharge voltage. The insulation test measures the resistance of a products insulation protection by applying a dc voltage between phase and neutral to the earth conductor for class i equipment and between phase and neutral to the outer case for class ii equipment. Large digital display with bar graph indication and with led back light polarization index measurement pi, dielectric absorption ratiodar. In principle, the value of the insulation resistance is very high but not infinite, so by. A guide to diagnostic insulation testing above 1 kv euro index.
Simpson 505 high voltage insulation tester instruction manual. This device has four voltage test ranges up to 5kv and measures insulation resistance to 250g this professional meter, with proper care, will provide years of. These product range also comprises of oil test sets and circuit breaker timer. Insulation resistance testing is a nondestructive test procedure.
Reed instruments digital high voltage insulation tester. Do not replace the batteries with the tester in a wet environment. Pdf propylene based systems for high voltage cable. Apart from this, our product range is madeup by making use of. Simpsons model 505 high voltage insulation tester is capable of measuring insulation resistances from 10 kilohms to 1 teraohm with eight selectable test voltages up to 5000 v. Kew 3126 digital high voltage insulation tester shortcircuit current up to 5ma wide range measurements from 500v to 5000v and up to 1t. Large display with bar graph indication and backlight. Safety standard iec 610101 cat iii 600v insulation resistance.
Do not touch the test probes or the device under test during voltage testing. Place the positive and negative probes of the megger on the two conductors or terminals between which you are testing the insulation resistance. High voltage winding to low voltage winding and ground b. Talk to avo about your training requirements and we can customize a course to individual skill levels, application, test standards, equipment. Greenlee is excited to expand the test and measurement portfolio with the hde high voltage line. Talk to avo about your training requirements and we can customize a course to individual skill levels, application, test. This meter provides four insulation resistance test ranges plus continuity, ac dc voltage, polarization index and dielectric absorption ratio measurements. As the insulation resistance measure usually requires a high voltage dc power supply as a test signal source for handheld 1 introduction tester, the resulting. Shortcircuit current up to 5ma microprocessor controlled. Extech instruments high voltage digital insulation tester. High voltage insulation hitester compact 5kv performance field measuring instruments 3455 cat iv 600v phone. Users guide digital high voltage insulation tester instrumart. Metriso prime highvoltage insulation tester for battery or.
The megger insulation tester is a small, portable instrument that gives you a direct reading of insulation resistance in ohms or megohms. The fluke 1555 insulation resistance tester offers digital insulation testing up to 10 kv, making it ideal for testing high voltage equipment including switchgear, motors, generators and cables. The test measures the insulation resistance between the phases andor between phase and ground. Model 3125high voltage insulation testersproductskyoritsu.
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