Variable Frequency Anti-interference Precision Dielectric Loss Tester Dielectric Loss TesterManufacturer



  YSB822Variable Frequency Anti-interferenceDielectric Loss Tester is a high-precision testing instrument used in power plants, substations, and other field or laboratory settings to measure the dielectric loss tangent (tan delta) and capacitance of various high-voltage power equipment. It is also suitable for testing after a complete power outage using a generator for power supply. The instrument has an integrated structure, incorporating a dielectric loss test bridge, variable frequency voltage regulating power supply, step-up transformer, and SF6 high-stability standard capacitor. The test high-voltage source is generated by the internal inverter and stepped up by the transformer for testing the test object. The frequency can be varied to 50Hz, 47.5Hz/52.5Hz, 45Hz/55Hz, 60Hz, 57.5Hz/62.5Hz, 55Hz/65Hz, using digital notch technology to avoid interference from the power frequency electric field, fundamentally solving the problem of accurate measurement under strong electric field interference.



Variable Frequency Anti-interference Precision Dielectric Loss Tester Dielectric Loss TesterManufacturer



1 Simple operation: The instrument is equipped with a high-end full touch LCD screen and a super large full touch operation interface. Every process is very clear and straightforward, and operators can use it without additional professional training. A simple click completes the entire measurement process, making it an ideal intelligent dielectric loss measurement device.



2 The instrument is equipped with a calendar chip and large-capacity memory, saving 200 sets of data. Test results can be saved in chronological order, and historical records can be viewed at any time and printed out.



3 Data from the instrument can be exported via USB drive and can be viewed and managed on any PC using our company's dedicated software.



4 The instrument uses internal high voltage and internal standard for testing, with positive connection, reverse connection, and self-excitation methods.



5 The instrument can also test the dielectric loss and capacitance of C1 and C2 of fully sealed CVTs (capacitive voltage transformers).



6 The instrument can accurately measure the dielectric loss and capacitance of CVTs without removing the high-voltage leads.



7 The instrument can use the reverse shielding method to measure the dielectric loss and capacitance of C0 at the top of the CVT.



8 The internal inverter and sampling circuits are fully digitally controlled, and the output voltage is continuously adjustable.



9 The instrument has multiple protection measures such as input voltage fluctuation, high-voltage current, output short circuit, power supply failure, overvoltage, overcurrent, and temperature protection, ensuring the instrument is safe and reliable. It also has a grounding detection function to ensure that ungrounded equipment is not allowed to boost voltage.



 



Variable Frequency Anti-interference Precision Dielectric Loss Tester Dielectric Loss TesterManufacturer



 


















































































































1



Operating Conditions



-15℃∽40℃



RH<80%



2



Anti-interference Principle



Variable Frequency Method



3



Power Supply



AC 220V±10%



Generator Allowed



4



High Voltage Output



0.5KV∽10KV



Every 0.1kV



Accuracy



2%



Maximum Current



200mA



Capacity



2000VA



5



Self-Excitation Power Supply



AC 0V∽50V/15A



45HZ/55HZ   47.5HZ/52.5HZ 



55HZ/65HZ   57.5HZ/62.5HZ



Automatic Dual Variable Frequency



6



Resolution



tgδ: 0.001%



Cx: 0.001pF



7



Accuracy



△tgδ:±(Reading*1.0%+0.040%)



△C x :±(Reading*1.0%+1.00PF)



8



Measurement Range



tgδ



Unlimited



C x



15pF < Cx < 300nF



 



10KV



Cx < 40  nF



 



5KV



Cx < 150 nF



 



1KV



Cx < 300 nF



CVT Test



Cx < 300 nF



9



Dimensions (Main Unit) (mm)



350(L)×270(W)×270(H)



Dimensions (Accessory Box) (mm)



350(L)×270(W)×160(H)



10



Memory Size



200 Sets, Supports USB Data Storage



11



Weight (Main Unit)



22.75Kg



Weight (Accessory Box)



5.25Kg