- Wuhan Guodian Mingke Electric Co., Ltd.
- Main products: Series resonance test device, Transformer tester, Circuit breaker, switch tester, High Voltage Insulation Equipm, Relay Protection Products, Cable and cable fault tester, Arrester and Insulator Test In, SF6 Test Instrument, Oil Testing Instrument, DC System and Battery Test Ins, Ground/Insulation Resistance T, Power Energy Analyzer, Power Energy Analyzer
Home > Products > Circuit breaker, switch tester > TKHL-200AMicro Ohmmeter
TKHL-200AMicro Ohmmeter
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Product Details
| Brand Name | GDMK | Place of Origin | China | |
| Model Number | TKHL-200A |
Product Description
At present the contact resistance measurements of the conventional type QJ44 arms widely used in electric power system dc bridge and the Test of this kind of bridge current only mA level it is difficult to find circuit conductor cross-sectional area to reduce defects when measuring contact resistance high-voltage switch electric circuit due to the contact between the oil film and the influence of the oxide layer several times the measured value is big can't reflect real contact resistance.To this end the ministry of power standards.88 "ac 500kV power equipment handover and preventive test regulations" and the new "preventive test regulations for power equipment" stipulate that the measuring current of circuit breaker and isolating switch contact resistance is not less than dc 100A to ensure the accuracy of test results.
Contact resistance tester is designed according to The People's Republic of China electric power implementation standard DL/ t845.4-2004 using high frequency switch The power supply technology and digital circuit technology combined.Contact resistance tester is applicable to the measurement of circuit resistance of switch control device.Its Test current USES 100A and 200A dc recommended by national standards.The circuit resistance can be directly measured at the current of 100A or 200A and the final test results are displayed in figures.The instrument is accurate in measurement and stable in performance. It meets the requirements of high voltage switch maintenance and resistance test of high voltage switch factory circuit.
Product names：Contact resistance tester、 switchMicro Ohmmeter、Contact Micro Ohmmeter contact (circuit) resistance tester
| Measuring range | 1～1999μΩ |
| Resolution | 1μΩ |
| Test current | DC50A、100A、150A、200AFour speed fixed output |
| Accuracy | 0.5%±1d |
| Way to work | The connection |
| Display | Three and a half LCD |
| Power supply | AC220V±10% 50Hz |
| Working environment | Temperature -10℃ ~ 40℃ humidity: ≤80%RH |
| Diemension | 370(L)×320(W)×260(H) mm3 |
| Weight | 9.6kg(excluding attachments) |
1、High current: using The new power supply technology Contact resistance tester can continuously output high current for a long time overcome The disadvantage of impulse The power supply instantaneous current can effectively break through The switch Contact oxidation film get good test results
2、Strong anti-interference ability: under The condition of serious interference The last digit data of LCD can be stable within ±1 word of The scope of with stable reading and good repeatability
3、Long service life: all use high precision resistance effectively eliminate The influence of The environment temperature on The measurement results at The same time The use of military connector enhances The anti-vibration performance
4、Easy to carry: small volume、The weight of The weight of The weight
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- Wuhan Guodian Mingke Electric Co., Ltd.
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