CT PT Volt-Ampere Comprehensive Characteristic Analyzer

Basic Info

Model NO.	GLDL-403
After-sales Service	Life Time Maintenance
Warranty	One Year
Potential Transformer Tester	Potential Trasformer Measuring Instrument
Transport Package	Aluminum Box Inside and Plywood Case Outside
Specification	CE Mark
Trademark	GOLDSOL
Origin	China
HS Code	9030332000
Production Capacity	20 Sets/Month

Product Description

1.Profile
Transformer Tester is new product created after widely adopt customers' advices and deep theoretical study. It is based on the automatic FA Series Transformer Tester General which is produced by our company that is widely acclaimed and applied. The adoption of high-performance DSP and ARM, advanced manufacturing technology ensure a stable and reliable product performance, full-featured, high degree of automation, high efficiency, in the domestic leading level, they are the professional testing equipments for transformer check in power industry.

2.Advantage
1)Full-featured, not only satisfy the test requirements of various CTs (include TP class), such as the excitation characteristics (i.e., volt-ampere characteristics), ratio, polarity, secondary winding resistance, secondary burden, ratio error and phase displacement, but can also be used for the tests of various PTs, including excitation characteristics of the electromagnetic unit, ratio, polarity, secondary winding resistance, ratio error and phase displacement.

2)Automatically give CT, VT parameters, including knee point voltage / current, 10% error curve, the accuracy limit factor (ALF), instrument security factor (FS), the second time constant (Ts), remanence coefficient (Kr), saturated and unsaturated inductance etc.

3)Test meet IEC60044 GB1208 (-1) GB16847 (IEC60044-6) became etc all kinds of transformer standards, and in accordance with the transformer types and levels of automatic choose which standard test.

4)Based on advanced principle of low-frequency test method that can meet the CT test on knee voltage up to 30KV.

5)Friendly interface beautiful, all Chinese graphic interface.

6)The instrument can store 2000 groups of test data that won't be lost when power off. After test ended, the data can be coped to PC by USB disk for analysis and being transformed into WORD report.

7)Test is simple and convenient, one-click can complete tests of CT secondary resistance, excitation, ratio and olarity.

8)Easy to carry, because the weight is less than 9Kg.

3.Technical parameter

Usage		Class P/TP CT & VT
Output		0~180Vrms,12Arms,18A(peak value)
Voltage measurement accuracy		±0.05%
CT Ratio	Range	1~30000
	accuracy	±0.05%
PT Ratio	Range	1~30000
	accuracy	±0.05%
Phase	Range	±5min
	accuracy	0.5min
DC resistance	Range	0~300Ω
	accuracy	2%±2mΩ
Burden	Range	0~300VA
	accuracy	2%±0.2VA
Power supply		AC220V±10%,50Hz
Environmental Conditions		Operating temperature :-10ºC~50ºC,Humidity :≤90%
Weight and Dimensions		Dimensions:340 mm×300 mm×150mm,Weight<9kg

4.Test Result
1) CT Test result

result		description	P	TPY	M	PR	PX	TPS	TPX	TPZ
Load	Actual load	unit:VA,CT secondary measure actual load	√	√	√	√	√	√	√	√
	Power factor	Power factor of actual load	√	√	√	√	√	√	√	√
	impedance	unit:Ω,CT secondary measure secondary impedance	√	√	√	√	√	√	√	√
Resistance	resistance(25ºC)	unit:Ω,CT secondary measure secondary resistance	√	√	√	√	√	√	√	√
	resistance(75ºC)	unit:Ω,Convert to resistance under 75ºC	√	√	√	√	√	√	√	√
excitation	knee voltage and knee current	unit:V and A,According to standard definition,when knee voltage increase 10%,knee current increase 50%.	√	√	√	√	√	√	√	√
	Unsaturated inductance Lu	unit:H,The average inductance of linear section for excitation curve	√	√	√	√	√	√	√	√
	remanence coefficient Kr	ratio of magnetism and magnetic	√	√	√	√	√	√	√	√
	Second time constant Ts	unit:s,the time constant of CT's second connect rated burden	√	√	√	√	√	√	√	√
	limiting e.m.f Eal	unit:V,calculation limit e.m.f. according to the CT nameplate and resistance under 75ºC	√	√	√	√			√	√
	composite error	limiting e.m.f or the composite error of rated knee potential	√		√	√	√
	Peak transient error	Peak transient error of limiting e.m.f		√					√	√
	ALF	actual ALF	√			√
	Instrument security coefficient	actual instrument security coefficient			√
	Symmetrical short-circuit current multiples Kssc	actual symmetrical short-circuit current multiples		√				√	√	√
	transient dimensioning factor	actual transient dimensioning factor		√					√	√
	calcuated coefficient Kx	actual calcuated coefficient					√
	Rated knee potential Ek						√
	Ie corresponding with Ek	The actual excitation current corresponding with rated knee potential					√
	Rated voltage Ual	The rated equivalent second limit voltage						√
	Ial corresponding with Ual	The actual excitation current corresponding with the rated equivalent second limit voltage						√
Ratio	Ratio	Actual current ratio under rated burden	√	√	√	√	√	√	√	√
	Turns ratio	The ratio of actual secondary winding and primary winding	√	√	√	√	√	√	√	√
	Ratio difference	The current errors under rated load	√	√	√	√	√	√	√	√
	Phase difference	The D-value of phase under rated load	√	√	√	√	√	√	√	√
	Polarity	There're two polarity relationship for primary CT and secondary CT: Positive and Negative	√	√	√	√	√	√	√	√
	Turn ratio error	The relative error between measured trun ratio and rated turn ratio					√	√

2)PT test result

result		description	P	M
Resistance	resistance(25ºC)R	unit:Ω,resistance value under current temperature	√	√
	resistance(75ºC)Rref	unit:Ω,Resistance value under reference temperature(the temperature is variable)	√	√
excitation	knee voltage and knee current	unit:V and A,According to standard definition,when knee voltage increase 10%,knee current increase 50%.	√	√
Ratio	Ratio	Actual current ratio under rated burden	√	√
	Turns ratio	The ratio of actual secondary winding and primary winding	√	√
	Ratio difference	The current errors under rated load	√	√
	Phase difference	The D-value of phase under rated load	√	√
	Polarity	There're two polarity relationship for primary and secondary , Positive and Negative	√	√

5.Standard Accesories

Sr no	Description	Qty
1	Host	1
2	Up-flow reactor(optional)	1
3	Power line	1
4	Red test line	1
5	Yellow test line	1
6	Green test line	1
7	High current test line(optional)	2
8	Control line(optional)	1
9	Ground wire	1
10	Alligator clip	4
11	Alligator clip	2
12	U type insert	4
13	Thermal printing paper	4
14	U disk	1
15	Protective tube	5
16	Special screwdriver for protective tube	1
17	Aluminum alloy packing box
18	Calibration report	1
19	Operating manual	1