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The Chroma 19050 series Hipot Tester is comprised of three models. The 19052 is equipped for AC/DC/IR Hipot testing and insulation resistance (IR) measurements. The 19053 combines both AC and DC Hipot tests and IR measurements with 8HV scan channel capabilities. The 19054 combines both AC and DC Hipot tests and IR measurements with 4HV scan channel capabilities. Front panel operation, digital display, and user friendly controls allows test parameters and limits to be set easily without the high voltage activating.
O.S.C function is used to check the connection is open or short circuit between instrument and DUT (equipment under test) before the Electrical Safety Test. If the connection is bad between the instrument and DUT, sometimes like leads or relay oxidation, the judgment is also PASS. In some cases, the DUT is short before testing. Testing continually leads to our instrument broken because suffered the high load current. Therefore, we have to check the open and short circuit to ensure the test effectively and protect instruments.
Generally, the DUT have capacitive load (Cx) from tens to thousands of pF. If the connection opening, a capacitance will appear and then total capacitive load is lower than that in normal condition. If the DUT shorting, total capacitive load is higher than that in normal condition. Therefore, we can measure the value of capactive load to check the contact is good or not.
All of the 19050 series testers have a ground continuity check feature to determine the resistance, that is between the ground blade of power cord and any exposed metal on the product, is less than 1Ω.
The requirement of test environment indicates that test equipmentis equipped with auto interrupt device so that Chroma develops into Ground Fault Interrupt (GFI) function. When the current meter A1 and A2 detect the difference (i2-i1=iH) between the value i1 and actual i2 test current over high, this device can cut the power transiently for protecting human body safety. It is not only compliance with the safety standard but also more safeguards for test personnel.
In DC hipot and IR test the device under test is discharged back through the HV transformer. This technique results in a rapid and safe discharge.
| Model | Description | Quote | Buy |
| 19052 | Hipot Test (AC/DC/IR) |  |
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| 19053 | Hipot Test (AC/DC/IR/8CH SCAN) | |
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| 19054 | Hipot Tester (AC/DC/IR/4CH SCAN) | |
Call |
| A190512 | Auto Control TR. Scan Box (3002B) | |
Call |
| A190508 | GPIB Interface | |
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| A190517 | 19' Rack Mount Kit for Model 19050 Series | |
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| A190702 | 40kV HV Test Probe | |
Call |
| A190704 | Start Switch | |
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| A190708 | ARC Verification Fixture | |
Call |
| A190344 | HV Gun | |
Call |
The Chroma Hipot Tester 19070 series provides 3 models for choice. The 19071 is for AC Hipot testing, the 19073 which combines both AC and DC Hipot with insulation resistance (IR) measurements into a single compact unit.
Fast transient in Voltage or Current occured while Hi-Pot testing is called Electrical Flashover. Normally, in AC line frequency (50Hz/60Hz) or DC Hi-Pot testing, the leakage current is the same as 50Hz/60Hz or DC (charge current is excepted). As shown in Figure leakage current varies smoothly.
On the other hand, electrical discharge occurred because of poor insulation in material, electrode gap or surface clearance etc., fast transient in leakage current apparent as shown in figure. This is phenomenon of poor withstanding. Most of Electrical Safety regulations mention the necessity in Withstand Strength Test. Nevertheless, general Hi-Pot tester detects the RMS value of leakage current only without capability to detect Flashover. Therefore, FLASHOVER detection function equipped with Hi-Pot tester is necessary.
| Model | Description | Quote | Buy |
| 19071 | Hipot Tester (AC) | |
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| 19073 | Hipot Tester (AC/DC/IR) | |
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| A190701 | Remote Control Box | |
Call |
| A190702 | 40kV Test Probe | |
Call |
| A190704 | Start Switch | |
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| A190706 | 19' Rack Mount Kit for Model 19070 series | |
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| A190708 | ARC Verification Fixture | |
Call |
| A190344 | HV Gun | |
Call |
Our experienced sales engineers can help you select the right instrument for your application. Contact Chroma Systems Solutions today!
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