200a Loop Resistance Tester

Product Introduction

ED0303B-200High Precision Loop Resistance Tester

Specialized equipment for on-site high-voltage switch maintenance by power and electricity departments, and for circuit resistance testing at high-voltage switch factories.

Reference Standards:DL/T845.4-2004

Electric current can50A、100A、150A、200AYou may freely choose among the options, and the testing time is flexible.5s～599sPlease set within any limit.

New power technology for continuous, long-duration high current output

Combining high-frequency switching power supply technology with digital circuit technology in design

Product Overview

Currently, conventional methods are widely used in the power system.QJ44Type double-armed DC bridge measures contact resistance, while the test current of such bridges is onlymAIt is difficult to detect defects in the reduction of the cross-sectional area of the circuit conductor. During the measurement of the contact resistance of the high-voltage switch conductive circuit, due to the influence of the oil film and oxide layer between the contacts, the measured value is several times larger, failing to truly reflect the actual contact resistance.

For this reason, the new Department of Power StandardsDL/T845.4—2004"General Technical Conditions for Resistance Measurement Devices: Circuit Resistance Meters" and the new Verification RegulationJJG1052-2009"Regulations for the Verification of Circuit Resistance Meters and Direct Resistance Meters specify that the measuring current for contact resistances of switches (isolated), circuit breakers, etc. must not be less than direct current."100ANo Chinese content provided.60SRegulations ensure accurate testing results.

ED0303B-200The high-precision loop resistance tester's operation panel features an ergonomic design that aligns with user habits. It employs high-frequency switching power supplies and digital circuit technology, making it suitable for measuring loop resistances in switching control devices.

ED0303B-200High-precision circuit resistance tester uses the DC current recommended by the national standard100AAvailable in DC100AThe circuit resistance was directly measured, with the test results displayed on a large LCD screen.LCDFeatures include display, data storage, output printing, and time setting, along with50AGear options available for user selection; customizable test time, with a long setting available.599S,Significantly greater than the standard requirements60SNo Chinese content provided.No Chinese content provided.Achieve0.01A highly stable contact resistance tester with μΩ resolution, outperforming imported high-current micro-ohmmeters.

ED0303B-200The high-precision loop resistance tester meets the requirements of on-site high-voltage switch maintenance for power and supply departments, as well as loop resistance testing at high-voltage switch factories.

Product Alias

Contact Resistance Tester, Switched Circuit Resistance Tester, Contact Circuit Resistance Tester, Contact(Loop)Resistance Tester

For further inquiries or purchase intentions regarding Wuhan鄂电Electric Power Test Equipment Co., Ltd.'s products, please call the manufacturer's direct sales hotline:400-034-8088Their professional team will provide you with more detailed information and services.