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KvTester 80kV 5ma Portable DC Hipot Test Set
KvTester 80kV 5ma Portable DC Hipot Test Set Specification Data
specification technic parameter | 40/4 | 60/2 | 60/5 | 120/2 | 120/3 | 120/10 | 200/2 | 220/2.5 | 200/10 | 300/2 | 300/3 |
Rated voltage（KV） | 40 | 60 | 60 | 120 | 120 | 120 | 200 | 220 | 200 | 300 | 300 |
Rated current（mA） | 4 | 2 | 5 | 2 | 3 | 10 | 2 | 2.5 | 10 | 2 | 3 |
Rated power（W） | 160 | 120 | 300 | 240 | 360 | 1200 | 400 | 550 | 2000 | 600 | 900 |
Voltage meter precision | number on voltage meter ±（1.0 %reading±0.2KV） | ||||||||||
Current meter precision | number on current meter ±（1.0 %reading±0.2KV） | ||||||||||
Ripple coefficient | ≤0.5％ | ||||||||||
Voltage stabilization | stochastic wave ,≤1％ when power wave±10% | ||||||||||
Overloading ability | overstep 10% of rated voltage when loading nothing for ten minutes; the biggest charge current can be 1.5 times of rated current | ||||||||||
power | single-phase alternating current power of 50HZ 220V±10％ | ||||||||||
working | incontinuous use | ||||||||||
The time should be no more than 30 minutes when continuously use it | |||||||||||
Work condition | temperature：-10～40℃ | ||||||||||
relative humidity：≤85％ when room temperature is 25℃ | |||||||||||
height above sea level：below1500 meters | |||||||||||
capacitance | capacitance of the tested res is absoluteness | ||||||||||
Can be charged with 1.5 times of rated current | |||||||||||
configuration | electric insulated Voltage Multiplier is made of epoxy FRP(Fiberglass-Reinforced Plastics) | ||||||||||
Air insulated、without leak | |||||||||||
characteristic of Control box | One button for high precision of 0.75UDC--1mA（precision≤1.0％）is suit to do zinc oxide lightning arrester test | ||||||||||
overvoltage protection use dialing code set,be clear at a glance | |||||||||||
International standard box withTwo kind of using way(can be take out from the box for using) makes it easy to use. | |||||||||||
KvTester 80kV 5ma Portable DC Hipot Test Set Accessories
1. Control box 1
2. HV voltage-multiplying cylinder 1 set
3. HV micro-ampere-meter 1 pcs
4. Standard accessories
(1) Power line 1
(2) Intermediate frequency output cable 1
(3) Dedicated ground lead 1
(4) Telescopic discharging rod 1
(5) Ground lead for discharging rod 1
(6) Current-limiting resistance 1 pcs
(7) Micro-ampere-meter line 1
(8) HV outgoing line 1
5. Accompanying documents
(1) Operation Manual 1
(2) Ex-factory Inspection Report 1
Safety Warning
● Those operating DC HV generators must be professional staff with electrical and HV test certificate.
● Provisions of Working Regulation of Power Safety should be strictly observed when using the equipment. There should be a clear cut-off point in the working power supply, which should be cut off clearly in case of replacement of test object and wiring.
● Before the test, it is necessary to make the connection of ground leads of tester control box, voltage-multiplying cylinder and sample reliable; the one-point grounding is conducted as shown in Figure 4-5.
● For large-capacitance test objects, a 100Ω/V resistance discharging rod should be used; the case that no discharging rod is passed through but ground lead is directly connected to the test object is prohibited.
Proper method of discharge: Firstly, make the top metal tip of discharging rod gradually close to the test object, then a hissing sound will appear when it comes to a certain distance, indicating that air gap begins to discharge free. When there is no discharge sound, the top tip of the discharging rod can be used to contact the test object for discharging, and finally the ground lead is connected directly to the test object.
● In case of 200kV+ DC HV tests, although testers wear insulated shoes and stand in a safety area, those persons standing nearby will carry different DC potentials due to HV DC ion space electric field distribution. There will be a slight shock occurred in testers when contacting with each other or the grounding body, which is more obvious in dry areas and in winter; however the energy is small and will not generally cause harm to human body.
● In the tests that discharge impact may be possible (test object breakdown), if the voltage rising is controlled by a host computer in a remote control manner, then the mode of isolating source and electrical isolation (optical fiber or radio) should be applied. Otherwise, the discharge impact may cause damage to the host computer instantaneously.
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