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Voltage Transformer Testing
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  • Voltage Transformer TestingVoltage Transformer Testing
  • Voltage Transformer TestingVoltage Transformer Testing
  • Voltage Transformer TestingVoltage Transformer Testing

Voltage Transformer Testing

Weshine® the CT PT Analyzer invented for Voltage Transformer Testing is a new product created after widely adopting the suggestions of customers and in-depth theoretical research. It is based on the widely acclaimed and applied automatic FA series transformer integrated tester produced by our company. Using high-performance DSP and arm, advanced manufacturing technology ensures stable and reliable product performance, complete functions, high degree of automation, high efficiency, which is at the leading level in China. It is a professional testing equipment industry for instrument transformer testing.

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Product Description




CT PT Analyzerfor Voltage Transformer Testing


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.

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.


In accordance with the transformer types and levels of automatic choose which standard test.

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

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.

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

Easy to carry, because the weight is less than 9 kg.


Weshine® CT PT Analyzer for Voltage Transformer Testing Parameter (Specification)


Name

CT PT Analyzer for Voltage Transformer Testing

Usage

Class P/TP CT & VT

Output

0~180Vrms,12Arms,18A(peak value)

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 :-10οC ~50οC,Humidity :≤90%

Weight and Dimensions

Dimensions:340 mm×300 mm×150mm,Weight<9kg


Typical Application


The CT test parameter description of Weshine® CT PT Analyzer for Voltage Transformer Testing is:


parameters

description

P

TPY

measure

PR

PX

TPS

TPX

TPZ

rated primary current

Used to calculate the ratio of actual current accurately

rated burden

Rated load of plate, power factor for 0.8 or 1

power factor

Rated accurate limit coefficientKalf

The provisions of the plate,default 10,used to calculate the limit e.m.f. and their corresponding composite error








Rated symmetric short-circuit current coefficientKssc

The provisions of the plate,default 10,used to calculate the peak and their corresponding limits e.m.f transient error





Primary time constant

default :100ms






Second time constant

default :3000ms







Duty cycle

C-t1-O or C-t1-O-tfr-C-t2-O,default:C-t1-O cycle







t1

Current time limit for the first time,default:100ms







tal1

Time required to reach the specified accuracy during the first magnetization cycle,default:40ms









tfr

Time required to reach the specified accuracy during the second magnetization cycle,default:500ms,Choose C-t1-O-tfr-C-t2-O,Cycle will be shown







t2

Current time limit for the second time,default:100ms.Choose C-t1-O-tfr-C-t2-O,Cycle will be shown






tal2

Second the flow by maintaining accurate limits of time,default:40ms







choose C-t1-O-tfr-C-t2-O,cycle will be shown

Rated instrument security coefficient FS

Nameplate regulation,default:10








Used for calculation of the limit of composite error and their corresponding electromotive force

Rated calculating coefficients









Rated inflection point potential(Ek)









Ie corresponding with Ek









dimensioning factor









Rated Ual

The rated equivalent quadratic limit voltage








Ial corresponding with Ual










The PT test parameter description of Weshine® CT PT Analyzer for Voltage Transformer Testing is:


experiment item

Description

Connection diagram

resistance

excitation

ratio



Measure CT’s secondary winding resistance

Fig 2.10,must disconnection if measuring primary winding.


Measure CT’s secondary winding resistance and excitation characteristic

Fig 2.10,must disconnection if measuring primary winding.



Check it’s ratio and polarity

Fig 2.11


Selections


Weshine has 8 years experience specifically for deal with complete range of Electrical Equipment. At present, Weshine has invented various CT PT Analyzer for Voltage Transformer Testing as shown as form:


ORDERING INFORMATION FOR CT PTANALYZER FOR Voltage Transformer Testing

Cat. No.

Max Test Voltage

Max Test Current

Ratio Test Accuracy

Dimensions

Weight

VS-2800

0 to 2500 Vrms

0 to 1000 A

±0.2%

425 x 290 x 310 mm

30 kg

VS-2800A

0 to 180 Vrms

0 to 150 A

±0.1%

340 x 300 x 150 mm

9 kg

VS-2800B

0 to 180 Vrms

0 to 150 A

±0.05%

340 x 300 x 150 mm

9 kg


*Based on Supply Chain issues: Please contact your preferred Authorized Weshine Distributor for current pricing and lead times.


HOW TO CHOOSE CT PT ANALYZER FOR Voltage Transformer Testing?

VS-2800: True power frequency, simulates the working state of the transformer.

VS-2800A: Upgraded on the basis of VS-2800, using frequency conversion technology, compact body, strong anti-interference ability, lower test voltage means safer and more reliable.

VS-2800B: Unmatched turns ratio test accuracy reached 0.05%, small innovation, big wisdom.


Quality Certificates

We always believe that all the success of our company is directly related to the quality of the products we provide. CT PT Analyzer for Voltage Transformer Testing meet the highest quality requirements specified in ISO9001, ISO14000:14001 guidelines and our strict quality control system.



Shipment 



For further information on Weshine's Service Solutions, contact our 24/7 online sales representative to get quotes from Weshine.


Contact us


FEEL FREE TO MAKE A PHONE CALL:400 996 1868

OR E-MAIL TO: [email protected]

SALES OFFICE

Weshine Limited 602, Building 3, Diangu

Technology Center, No. 3088, Lekai North Street

W/app: +86 1873 1260 588

E. [email protected]

[email protected]


CONTACT OFFICE

T. 0312 3188565

E. [email protected]


AFTER-SALES SERVICE

T. +86 157 1252 6062


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