Secondary pressure drop and load tester

Secondary pressure drop and load tester

Type: ZC-105C
         In power plant and substation electricity measurement circuit, the voltage transformer is installed in the outdoor control panel on the watt-hour meter has a far distance, is in commonly 200 ~ 400 m or so, the whole circuit are terminal blocks, switch, fuse and wire, inevitably exist, wire resistance and contact resistance distribution parameters, there exists a certain circuit impedance, thereby causing voltage transformer between the watt-hour meter and the secondary circuit voltage drop. Voltage transformer secondary circuit voltage drop includes cable, terminal contact resistance, fuse wire, intermediate relay contact, air small switch, etc. The error caused by the voltage transformer's secondary voltage drop refers to the percentage of the voltage amplitude difference between the voltage transformer's secondary terminal and the load terminal relative to the secondary actual voltage, and the general term of the phase difference between the two voltages.
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Product Features
     1. The secondary pressure drop and load measuring instrument can realize three-phase three-wire, three-phase four-wire and single-phase automatic measurement.
     2. Use engineering plastic chassis, which is durable and can effectively guarantee the safety of testers and systems.
     3. The instrument has the function of automatic range switching to ensure the test accuracy.
     4. The electronic principle circuit combined with DSP technology makes the test stable and strong anti-interference ability.
     5. After the measurement is completed, various parameters related to load will be automatically calculated for the convenience of customer analysis and test.
     6. Large LCD display of Chinese characters, all operations are prompted by Chinese menu; Data with power storage and browsing functions, data can be transmitted online with the computer.
     7. Large capacity 7.2v11ah lithium battery is adopted for power supply, which does not have any impact on the test circuit to avoid protection of the system. At the same time in the field without power supply under the circumstances.
temperature -10℃~40℃
Relative humidity <85%(25℃)
Either altitude height <2500m
Outside interference 0.01'
Intrinsic error No extra strong vibration, no extra strong electromagnetic field

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