• Model NO.：GDGS
• Tangent Delta：1%Rdg+0.04%
• Warranty：1 Year
• Transport Package：Wooden Case and Wooden Case ,According to Customer
• Specification：470mm(L) × 320mm(W)× 390mm(H)
• Trademark：GOLD
• Origin：Chongqing, China (Mainland)
• HS Code：9031809090
• Production Capacity：100 Set,Sets Per Month

No.ItemGDGS Transformer Insulation Power Factor Testing Equipment1AccuracyCx±(reading×1%+1pF)
PF±(reading×1%+0.00040)2Interference RatioInterference current is no more than 2 times of test current3Capacitance RangeInternal HV:  3pF~60000pF / 10kV,60pF~1uF/0.5kV
External HV  3pF~0.3uF/10kV
Resolution  0.0001pF, 4 digital4PF RangeNo limit, Resolution 0.001%, C/L/R specimen test5Input current range10μA~1A6Internal HV0.5~10kV / 200mA (max)7HV AdjustRise or fall smoothly8HV Accuracy±(reading×1%+10V) Resolving 1V9Frequency select60Hz single point, locked 55Hz/65Hz double point, locked10Test Time40S typical11Power Supply180V~270V 50Hz/60Hz auto12Operating Temperature0ºC~60ºC13Storage Temperature-20ºC~60ºC14Humidity<90%

Working Principle:
 

• In the AC voltage, the dielectric to consume part of the energy, this part of the energy will be converted to heat energy loss. This energy loss is called dielectric loss.
• When AC voltage is applied on the dielectric, the dielectric between voltage and current in phase difference angle psi, delta psi is called the dielectric loss angle tangent TG delta delta is called dielectric loss tangent. TG delta value is used to measure dielectric loss parameters. The instrument measuring circuit includes a standard circuit (Cn) and a test loop (Cx), as shown in Figure 2 - 1. The standard circuit is composed of a built-in high stability standard capacitor and a measuring circuit. Measurement line sampling resistor with pre amplifier and A/D converter. By measuring circuit are respectively measured by standard test and loop current loop current amplitude and phase difference, then the digital signal processor using digital real-time acquisition method, obtained through vector operation test of capacitance and dielectric loss tangent value. The anti-interference measures have been adopted in the instrument to ensure the accurate measurement under the interference of external electric field.

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