Compliance HTT-1R MedmA - Ground (Pass 0.1 Fail 0.025 ohm) Bond Function Checker

HTT-1R Custom, Function Checker using custom test values.

HTT-1R MedmA, Function Checker, Ground (Pass 0.1 Fail 0.025 ohm) Leakage (Pass 848k Fail 424kohm) Arcover 750V 400V.

The HTT-1R provides a fast, safe and reliable way to verify proper operation of Dielectric Withstand (hipot) and Ground Continuity/Ground Bond Testers between calibration cycles, in accordance with requirements of TUV and other European agencies.  It uses actual loads to simulate barely passing and barely failing results to exercise the tester(s), and is designed to be used as a verification test fixture in compliance with the requirements for shift by shift verification stated in ECS CIG-023 Inspection Report, Section 4. See the Manuals Section below for an example of the CIG-023 Inspection Report.

It allows the operator to check the result of the three failure modes encountered in production hipot and ground circuit testing (open ground, high leakage current, and dielectric breakdown) separately or in any combination to verify proper test equipment operation. A passing test is also simulated.

The test leads allows connection of the HTT-1R to any hipot tester using a standard NEMA 15A receptacle, or use the leads on the hipot and ground tester to connect directly to the HTT-1R. The manual contains anticipated results and suggests testing procedures. The maximum voltage the HTT-1R can test is 3000Vac/4200Vdc.

HTT-1R Front Panel Features

Setup Procedure: Hipot Tester

This procedure will describe the connection of the HTT-1R to a hipot tester or a combination hipot/ground bond tester. Because of the varying types of tester outputs, cables provided with the HTT-1R may not fit the hipot / ground bond tester. For custom cables, please contact Compliance West USA.
 

1.  Connect the Hipot Tester to the HTT-1R.
   1. On your hipot tester, identify the high voltage output receptacle. Connect the Output and chassis cable to the high voltage receptacle. The other two ends of the cable, connect them to the HTT-1R, the green banana plug goes to the chassis green banana receptacle, and the red banana plug to the output red banana receptacle.
   2. On your hipot tester, identify the return lead of the high voltage output. This is connected to the black banana Return jack receptacle of the HTT-1R.
2. Conduct a simulated PASSING test by setting all three switches of the HTT-1R to the PASS (green) setting and initiating a hipot test by starting your hipot tester.
   1. Your hipot tester should indicate ‘PASS’.
3. If your tester checks for ground continuity, conduct a simulated GROUND OPEN test by setting the GROUND switch on the HTT-1R to ‘FAIL’. (All other switches on the HTT-1R should be set to ‘PASS’.) Begin testing by starting your hipot tester.
   1. Your hipot tester should indicate ‘FAIL’, stop testing, and sound a buzzer or otherwise warn the operator of a problem.
4. Conduct a simulated EXCESS LEAKAGE test by setting the LEAKAGE switch on the HTT-1R to ‘FAIL’. (All other switches on the HTT-1R should be set to ‘PASS’). Begin testing by starting your hipot tester.
   1. Your hipot tester should indicate ‘FAIL’, stop testing, and sound a buzzer or otherwise
      warn the operator of a problem.
5. Conduct a simulated HIPOT FAILURE test by setting the HIPOT switch on the HTT-1R to ‘FAIL’. (All other switches on the HTT-1R should be set to ‘PASS’.) Begin testing by starting your hipot tester.
   1. The  dielectric  breakdown  will  be  visible  as  an  arc  in  the  ARC  VIEW  window  of  the HTT-1R.
   2. Your hipot tester should indicate ‘FAIL’, stop testing and sound a buzzer or otherwise warn the operator of a problem. (If the current of the spark is above the leakage limit, the Excess Leakage failure may occur as well)

Connection to a hipot tester

Setup Procedure: Ground Bond Tester

This procedure will describe connection of the HTT-1R to a ground bond tester. Because of the varying types of tester outputs, only return banana to banana cable is provided with the HTT-1R that can be used on a Ground bond tester. For custom cables, please contact Compliance West USA.

If the ground bond tester has an output current above 15A, make sure the test time is not higher than 3 seconds, to repeat another test wait for 10 seconds. Resistors inside may overheat, this can cause permanent damage and miss readings.

1. Connect the ground bond tester to the HTT-1R.   
   1. On your ground bond tester, plug the return lead of the high current output to the black return banana receptacle of the HTT-1R.  
   2. On your ground bond tester, plug the high current output into the HTT-1R chassis green banana receptacle.
2. Conduct a simulated PASSING test by setting all three switches of the HTT-1R to the PASS (green) setting and initiating a ground bond test by starting your ground bond tester.
   1. Your ground bond tester should indicate ‘PASS’.  
3. Conduct a simulated GROUND OPEN test by setting the GROUND switch on the HTT-1R to ‘FAIL’.  (All other switches on the HTT-1R should be set to ‘PASS’.)  Begin testing by starting your ground bond tester.
   1. Your  ground  bond  tester  should  indicate  ‘FAIL’,  stop  testing,  and  sound  a  buzzer  or otherwise warn the operator of a problem.

Connection to a Ground bond tester