GDGS Automatic Transformer Dielectric Loss Tester

1.GDGS Automatic Transformer Dielectric Loss Tester is a high-precision instrument, which can be applied to automatically measure electrical loss tangent and capacitance of all kinds of high voltage electrical equipments on the spot of power plants, substations,laboratory, etc. 

2.GDGS Automatic Transformer Dielectric Loss Tester is an integrated structure with a dielectric loss test bridge, a variable frequency power supply, a step-up transformer and a SF6 high stability standard capacitor. High voltage source inverter test generated inside the instrument, the transformer voltage for sample test. If the frequency is 50Hz.47.5Hz\52.5Hz.45Hz\55Hz.60Hz.57.5Hz\62.5Hz.55Hz\65Hz, the digital notch filter is used to avoid the interference of the power frequency electric field to the test, which solves the problem of accurate measurement under the strong electric field interference. At the same time, the utility model is suitable for the occasions that the generator is used for power supply after the power cut. 

3.GDGS Automatic Transformer Dielectric Loss Tester with insulation cup can test the dielectric loss of insulating oil.

Characteristics

(1)Large LCD display
Simple operation, the instrument is equipped with a high-end full touch LCD screen, super touch interface, each process is very clear, the operator does not need additional professional training can be used. Click on it to complete the whole process of measurement, is a very ideal intelligent dielectric loss measurement equipment.

(2)Mass storage data
The instrument is equipped with a calendar chip and large capacity memory, the test results can be stored in chronological order, at any time to view the history, and can print output.

(3)Multiple test modes
The instrument can use high pressure, high voltage, standard, standard, positive connection method and reverse connection method, self excitation method and other methods can do testing; high voltage in standard high voltage conditions (greater than 10kV) dielectric loss.

(4)CVT test step in place
The instrument can also test the full sealed CVT (capacitor voltage transformer) C1, C2 dielectric loss and capacitance, to achieve the C1, C2 simultaneous test. The instrument can also test the CVT ratio and voltage angle difference.

(5)do not dismantle the high-voltage lead measurement CVT
The instrument can accurately measure the dielectric loss and capacitance of CVT without dismantling the CVT high voltage lead.

(6)CVT reverse shield method for measuring C0
The instrument can be used to measure the dielectric loss and capacitance value of C0 on the upper end of CVT.

(7)High speed sampling signal
The inverter and sampling circuit of the instrument are all controlled by digital, and the output voltage is adjustable continuously.

(8)Multi protection security
The instrument has many protection measures, such as input voltage fluctuation, output short circuit, over voltage, over current and temperature. The instrument also has the grounding detection function to ensure that no grounding equipment is not allowed to boost.

Main specification

1	Use conditions	-15℃~40℃	RH＜80%
2	Anti-interference	Frequency conversion
3	Power	AC 220V±10%	Allowable generator
4	High output	0.5KV~10KV	Every 0.1kV
		Precision	2%
		Maximum current	200mA
		Capacity	2000VA
5	Self-excited power	AC 0V~50V/15A	45HZ/55HZ 47.5HZ/52.5HZ  55HZ/65HZ 57.5HZ/62.5HZ Automatic double frequency
6	Resolving power	tgδ: 0.001%	Cx: 0.001pF
7	Precision	△tgδ:±(Reading*1.0%+0.040%)
		△C x :±(Reading*1.0%+1.00PF)
8	measuring range	tgδ	Unlimited
		C x	15pF ＜ Cx ＜ 300nF
			10KV	Cx ＜ 60 nF
			5KV	Cx ＜ 150 nF
			1KV	Cx ＜ 300 nF
		CVT test		Cx ＜ 300 nF
9	CVT range	10~10000
	accuracy	0.1%
	Resolving power	0.01
10	Exterior dimension	350(L)×270(W)×270(H)
11	Memory size	The 200 group supports U disk data storage
12	Weight	28 Kg

Tan Delta

GDGS Automatic Transformer Dielectric Loss Tester

Tan Delta (TD) – also referred to as Dissipation Factor or sometime even Power Factor – is an excellent diagnostic test that provides an indication as to the quality of the dielectric insulation used in electrical apparatus. By analyzing the dielectric losses in theinsulation, the GDGS Series of Tan Delta test instruments provide the testing engineer with a versatile high voltage diagnostic system that is suitable for testing MV cable such as XLPE, EPR, PE and PILC. In addition, other electrical apparatus such as capacitors, transformers and large rotating machines can also be diagnosed