These hipots provide continuously adjustable ac voltage used for a passfail, ac overvoltage withstand test on high voltage apparatus, like switchgear, circuit breakers, reclosers, vacuum bottles, hot sticks, bus duct, and any other apparatus needing an ac test voltage. Let our skilled technicians get your ac hipot test set back in operation quickly. The vlf 65e is a top performer from the latest generation of hvi vlf ac hipots using a aircooled, solid state design with microprocessor control. Then a single wire or network of connected points called a net is disconnected from 0v and connected to the ac source see figure 2.
However, it is a good practice to always ensure that a product is discharged, regardless of the test voltage or its nature, before it. The vlf34e is a top performer from the latest generation of hvi vlf ac hipots using a drytype, aircooled, solid state design with microprocessor control. Hipot tester 190711907219073 users manual for the outputted test voltage from zero rising to the specified value. Very low frequency vlf testing hipot testing california. Standard features of the vlf 30cm ac hipot sine wave output, 0. The instrument offers fully automatic testing sequences which allow the operator to effortlessly apply the correct testing standards without having to remember what those testing parameters are, thus avoiding possible over stressing of the cable system. Hvi vlf6022cm very low frequency ac hipot vlf test set. We help you to choose the equipment that you need, we expedite shipment, and follow up. High voltage vlf6022cm very low frequency ac hipot vlf test sets from 28kv 200kv with sine wave output hvi offers the most portable, affordable, and easiest to use vlf hipots available.
Vlf30cm ac hipot manufactured by high voltage, inc. The hipot 150 supplies a high voltage at a very low current. China vlf 30kv very low frequency cable ac hipot test set. The case is very rugged and provides room for cable and accessories. Smallest, lightest weight acvlf hipot available with the largest test. Service and maintenance user service to prevent electric shock do not remove the instrument cover. When using it, the capacitance of the sample should not exceed the rated capacity of the. The pft 503cm and pft503cmf are from our popular pft series of field portable ac hipot test sets. The numerous safety features protect the hipot testers from damage and provide the safest possible operational environment for the test technician.
Vlf ac hipot test set gdvlf80 hv hipot products made in china, china manufacturer. To prevent accidental injury or death, these safety procedures must be strictly observed when handling and using the test instrument. Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. A powerful vlf ac testing solution for medium voltage, 44, 69 and 115 kv class xlpe, pe, epr, rl and pilc cables, splices, transition joints and t joints. Hipot testers and electrical safety compliance test equipment. No regular maintenance required due to the absence of oilfilled devices the hipot testers require no regular maintenance. These tests are typically carried out on a frequency between 0.
The pft series operates from a standard 120v source and incorporates capacitve compensation which allows a 3kva test load to be tested with only 1kva of input power. On march 2019, engineer from hv hipot goes to india for conmissioning of 4500kva750kv ac resonant test system, which was imported a few years ago. Machine feature programmable microcontroller advanced digital frequency technology builtin printer portable ac hipot testing of cables and electrical apparatus is now easier than before udey vlf testers are suitable for testing cables, transformers, switchgear. Smallest, lightest weight acvlf hipot availabel with the largest test load ratings. The hipot 150 is a portable high voltage test set that is designed to locate faulty insulation on electrosurgical instruments and accessories. Vlf hipot testing has a lot of the same advantages as dc hipot testing, the equipment used is conveniently small, relatively lightweight, and yields very accurate information. Compared to traditional acdc hipot testing, vlf test methods are able to more easily determine the high voltage field of certain loads of high. Harmful space charges dose not generated during testing. High voltage vlf65e high performance portable vlf hipot. Model 4500d 500 va enhanced ac only hipot with ground. China vlf hipot tester, vlf hipot tester manufacturers. When using a dc hipot tester, the capacitors in the circuit could be highly charged and, therefore, a safedischarge device or setup is needed. The hipot test along with dielectric withstand tests ensures that the unit under test uut meets operator safety requirements and meets the standards set forth by ul, csa, iec, and other standard certifying bodies. Vlf tester, hipot tester, 2036 kv vlf test set manufacturer supplier in china, offering 30kv 0.
Vlf series of portable ac hipots manufactured by high voltage, inc. The mark consists of a mathematical sine wave through the center of which appear the words high voltage in capital letters and in smaller italicized capital letters justified to the left and below of high voltage the words vlf hipot instruments. Hvis ac hipots are among the smallest, lightest, and most economical available while delivering higher power ratings and enhanced features. High voltage pft 503cm portable ac hipot test sets the pft series of ac hipots are ideal for testing many types of substation apparatus, motorsgenerators, isophase bus, and other loads requiring an ac withstand test. Hipot 150 electrosurgery instrument insulation tester. Hvi vlf products provide sinusoidal ac voltage but at 0.
The portable vlf test system 27 kv of seba kmt can be used to test the cables in conjunction with the according local regulations for operating voltage levels up to 11 kv for new cables and 16 kv for aged cables at 3 uf cable capacity. The vlf ac hipot does not generate harmful voids in the insulation through treeing. High voltage vlf 34e hipot sales, rent, calibration. Vlf 30cm ac hipot manufactured by high voltage, inc. Standard features of the vlf30cm ac hipot sine wave output, 0. High voltage pft503cm portable ac hipot test sets the pft series of ac hipots are ideal for testing many types of substation apparatus, motorsgenerators, isophase bus. Vlf ac hipot series 100 kv vlf model also available some benefits of jupiter vlfac hipots. The high voltage model pft503cm is a 50 kv ac hipot tester that is housed in a single 75 lb enclosure. Standard features of the vlf series of ac hipots sine wave output, 0. A hipot produces voltages and currents that can cause harmful or fatal electric shock.
Vlf, or very low frequency testers, are used to conduct vlf withstand tests. Major brands available include hipotronics, high voltage inc and hv diagnostics. A hipot tester hi pot tester or hypot tester is used to perform electrical safety tests on electrical components and products. Vlf 34e is the latest generation of vlf ac hipots using an aircooled, solid state design with microprocessor control. Hvi offers the largest selection of models in the world, with ratings from 28kv 200kv with load ratings from 0. The vlf 34e is the choice for 5 to 15kv acceptance and 5 to 25kv maintenance testing per ieee 400. Features and specifications the vlf 30cm hipot test set provides true sine wave ac output voltage for the test of 15 kv class high voltage cables 0. Vitrek v7x series no other hipot tester can touch em for nearly 25 years, an obsessions has driven us to keep improving how hipot testers perform speed, accuracy, user safety and reliability have been our driving force. The vlf65e is a top performer from the latest generation of hvi vlf ac hipots using a aircooled, solid state design with microprocessor control. Fully automatic or manual cable test sequences true symmetrical sinusoidal, load independent, output waveform across the full load range. Vlf hipot instruments pts75 for saledc hipot testers. The vlf34e hipot is available for rent process measurement. The pft503cm and pft 503cmf are from our popular pft series of field portable ac hipot test sets.
Vlf test set manufacturer,supplier,exporter from delhi,india. High voltage vlf 65e high performance portable vlf hipot. In june, 2018, hv hipot engineer was invited to parth electricals for commissioning of gdvlf80 vlf ac hipot test. While many testing standards around the world have evolved to recommend the use of ac vlf very low frequency rather than dc for. The hva series of universal high voltage test instruments offer unrivalled power, performance and reliability for the majority of your ac vlf and dc high voltage testing applications. Safety, operation, and procedure instructions for the vlf. Vlf hipot instruments pft301cm ac hipot test set control. China vlf hipot tester manufacturers select 2020 high quality vlf hipot tester products in best price from certified chinese hipot tester manufacturers, electrical testing equipment suppliers, wholesalers and factory on.
A vlf hipot is just an ac output tester but with an output frequency of 0. Repair your broken vlf hipot instruments part we can repair your vlf hipot instruments pft301cm in our facility. Pft series ac hipots test medium and high voltage electrical apparatus. Step 2 print the rma form and put it in a box with the parts for. Vlf hipot instruments pts75 products for sale at test equipment center are thoroughly tested, and receive electrical and cosmetic reconditioning as needed prior to sale. The implication of dc hipot testing in the premature failure of extruded solid dielectric cables led to the development of ieee docuements ieee guide for field testing and evaluation of the insulation of shielded power cable systems and ieee 400. Changing the time for voltage falling this instrument contains fall function.
Features and specifications the vlf series of hipot test sets provide true sine wave ac output voltage for the test of high voltage cables and other capacitive loads. Rent first class test equipment without stress or hassle, or purchase used equipment at discounted pricing and with a 12 month warranty. The test voltages to be used vary depending upon whether the device or circuit is low or high voltage, a primary or control circuit and whether tested at the factory or in the field. High voltage vlf hipot instruments trademark high voltage. This function is to change the time required for the outputted test voltage from the specified value falling to zero. Hvi offers the largest selection of models in the world, with ratings from 28kv. Vlf hipot instruments pts75 products for sale at test equipment center are thoroughly tested, and receive electrical and cosmetic reconditioning as. Ac hipot testing ac high potential tests are conducted at voltages above the normal system voltage for a short time.
Test programming, data retrieval, and custom pc software are intuitive and easy to learn. While many testing standards around the world have evolved to recommend the. High voltage pft503cm portable ac hipot test sets the pft series of ac hipots are ideal for testing many types of substation apparatus, motorsgenerators, isophase bus, and other loads requiring an ac withstand test. Hvis ac hipots are among the smallest, lightest, and most economical available while delivering higher power ratings and enhanced. General information vlf means very low frequency and 0. Ac testing of cables and electrical apparatus is now easierthan ever if using our vlf high voltage tester. Very low frequency vlf ac hipots a vlf hipot is just an ac output tester but with an output frequency of 0.
It is still an ac voltage with sinusoidal polarity reversals every half cycle. A hipot test starts with all of the points in a cable held at 0v. The high voltage model pft 503cm is a 50 kv ac hipot tester that is housed in a single 75 lb enclosure. The high voltage pft 503cm portable ac hipot tester is ideal for a variety of field and general repair shop hv testing applications. Chromas obligation under this warranty is limited solely to repairing any such instrument. Step 1 click the green button above to add the part and complete the rma form. Vlf ac hipot test set gdvlf80 was successfully tested in india. A vlf hipot is an ac output high voltage instrument. In june, 2018, hv hipot engineer was invited to parth electricals for commissioning of gdvlf80 vlf ac hipot test set. Vlf hipot instruments pts75 75 kv dc portable hipot megohmmeter and other dc hipot testers above 25 kv for sale at test equipment center. The vlf hipot allows a much larger range of high voltage testing on the ac side of things up to 34kv ac.
Although, there remains one clear advantage to the vlf hipot testing method compared to the dc hipot testing method, the ieee standard does not caution that vlf hipot. China vlf 30kv very low frequency cable ac hipot test set, find details about china ac hipot test set, vlf hipot test set from vlf 30kv very low frequency cable ac hipot test set huazheng electric manufacturing baoding co. Features and specifications the vlf30cm hipot test set provides true sine wave ac output voltage for the test of 15 kv class high voltage cables 0. Model vlf90cm ac hipotburner vlf4022cm 090 kvac, with 0. However, it is a good practice to always ensure that a product is discharged, regardless of the test voltage or its nature, before it is handled.
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