Hubei, China
Business Type:
Number of Employees:
Year of Establishment:
Management System Certification:
ISO9001:2015, ISO14001:2015, ISO45001:2018 certificate
OEM/ODM Availability:
OEM/ODM Service

CT Analyzer, CT PT Analyzer, CVT Analyzer manufacturer / supplier in China, offering Portable Current Transformer CT PT Tester, Electric DC Resistance Meter Transformer Winding Resistance Testing Equipment, Handheld Single/Three Phase Transformer TTR Turns Ratio Test Instrument and so on.

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  • Portable Current Transformer CT PT Tester
  • Portable Current Transformer CT PT Tester
  • Portable Current Transformer CT PT Tester
  • Portable Current Transformer CT PT Tester
  • Portable Current Transformer CT PT Tester
  • Portable Current Transformer CT PT Tester

Portable Current Transformer CT PT Tester

Min. Order / Reference FOB Price
1 Piece US $1,000-2,000/ Piece
Port: Shenzhen, China
Production Capacity: 1000set/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
After-sales Service: on-Site Training
Warranty: 3 Years
Weight: 9kg / 19.84 Lbs
Connection Port: USB Ports, Communication Port
Testing Method: Injectinal Low Ajustable Frequncy
Calibration Acuracy: 0.05%

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Basic Info.

Model NO.
Testing Object
Current Transformer Voltage Transformer
Knee Voltage Measuring Range
PC Operation
Transport Package
Standard Export Wooden Package
Hubei China
HS Code
  • Product Description
  • Certifications
  • Company Profile
  • Our Advantages

Product Description

Portable current transformer CT PT Tester


CT  PT Tester is the high accracy calibration solution of various CTs and PTs according to standards IEC61869-2 (IEC60044-1,60044-6), IEC61869-3(IEC60044-2) and IEEE/ANSI C57.13.
The Analyzer automatically finish test within seconds by one click. It tests  CTs with knee-point voltage up to 40kV and PTs on-site in power grids or in manufacturers' production facilities or test labs. 

CT and PT Tester weights only 9kg(9.84 lbs).


Main Features
1) Able to test Protection CTs, Measuring CTs, TP class CTs and inductive PTs
2) Test excitation characteristic and error curve based on low-frequency measurement principle
3) Measure ratio, polarity, ratio error and phase displacement error based on voltage method
4) Automatic demagnetization of the CT after test.
5) Adopt patented multifunctional rotary mouse to replace the keypad
6) Adopt 5.7 inches LCD screen for display
7) Adopt DSP, ARM and embedded LINUX operation system
8) Both local test and PC remote test available
9) Higher measurement accuracy: 0.05 %
10) Print test results directly by built-in thermal printer
11) Small and light weight (9kg / 19.84 lbs) for easy transport


-CT/PT excitation and saturation test
-Accuracy measurement of ratio and phase angle
-Secondary loop burden measurement
-Winding resistance measurement
-Saturated and non-saturated inductance test
-Transient CT parameters test
-CT/PT polarity test
-CT nameplate guess


Technical Data
○Test Standard: IEC61869-2(IEC60044-1,60044-6), IEC61869-3(IEC60044-2), IEEE/ANSI C57.13
○Maximum Knee Voltage Measurement: 40kV 

○Output Range:
voltage: 0~180V(RMS)
current: 0~12A(RMS), 36A(peak value) 

○Voltage Measurement Accuracy: ±0.05%
○CT Ratio Measurement:
accuracy: ±0.05% 

PT Ratio Measurement:
accuracy: ±0.05% 

○Phase Measurement:
accuracy: ±2min
resolution: 0.01min 

○Secondary Winding Resistance Measurement:
range: 0~300Ω
accuracy: 0.1%±1mΩ 

○Burden Measurement:
range: 0~300VA
accuracy: 0.1%±0.1VA

○Memory Capacity: >3000 groups test results 

○Power Supply

Nominal Input Voltage

Customized (AC 220V/230V/120V/127V±10%, 1-Phase)

Nominal Frequency

50/60 Hz

Rated Current

10A At 230V / 12A At 115V


Standard AC Socket (IEC 60320)


○Environmental Conditions

Operation Temperature

0 ... +50 °C (+32 ... +122 °F)

Storage Temperature

-25 ... +70 °C (-13 ... +158 °F)

Humidity Range

Relative Humidity 5 ... 95 %, Non-Condensing


IEC 60068-2-6(20m/S2 At 10 ... 150 Hz)




9kg / 19.84 Lbs

Dimensions (W X H X D, Without Handle)

340×300×150mm(13.39x11.81x5.91 In)

Connection Port

2 USB2.0 Ports, 1 Communication Port


○Safety Standards, Electromagnetic Compatibility


The Product Adheres To The Electromagnetic Compatibility (EMC) Directive 2004/108/EC(CE Conform)

IEC 61326-1; IEC 61000-6-4; IEC 61000-3-2/3


The Product Adheres To The Low Voltage Directive 2006/95/EC(CE Conform).

IEC 61010-1


Ratio error and phase angle error of CT tested by voltage measurement method 
Portable Current Transformer CT PT Tester

Figure1 CT's equivalence principle diagram


CT's equivalence principle is shown as figure1. As we can know from the figure, the main reason of causing ratio error and phase angle error is the error of excitation loss's current Iex and turns ratio Np/Ns. So for 5%, 20%,100%,120% rated current output, if Iex amplitude and phase position and true turns ratio Np/Ns are known, then the ratio error and angle error of CT at this time can be calculated. The tester calculates the ratio error and phase angle error of CT by the measured turns ratio Np/Ns and excitation loss Iex.


Turns Ratio Np/Ns can be got by inputting voltage on the secondary side under no-load condition and test the primary induced voltage. Iex can be got by test the secondary side's excitation characteristics. Because Iex is determined by the induced electromotive force of secondary circuit, Iex amplitude and phase angle can be got from excitation characteristics. When the secondary current and the secondary load are known, Vex value is also can be got by calculation and get Iex value by checking out the excitation characteristics data table.
Portable Current Transformer CT PT TesterCT and PT Tester CTP-200P is portable and reliable instrument for testing Current Transformers and Potential Transformers indoor or outdoor. 
Portable Current Transformer CT PT Tester


CT and PT Tester CTP-200P is calibrated in in the third party laboratory accredited under ISO/IEC 17025. The calibration report is shown as below. 
Portable Current Transformer CT PT Tester

Company Profile

Portable Current Transformer CT PT TesterPortable Current Transformer CT PT TesterPortable Current Transformer CT PT TesterHAOMAI ELECTRIC POWER AUTOMATION is established in 1999 and located in Wuhan of China, which is specialized in developing and manufacturing electrical power test and measurement instruments. HAOMAI products are widely used in power grid, petrochemical, metallurgy, railway, coal mine, research institutes and all kinds of large-scale factories or enterprises.mainly focuses on the sales and services of Protection Relay Test System, CT/PT Analyzer, Battery Load Tester, Transformer Testing Equipment, Circuit Breaker Analyzer, Partial Discharge Detector etc. electrical power test and measurement instruments.
HAOMAI follows total quality criteria, and always maintains standardized process and procedures for continuous growth. HAOMAI has been certified by ISO 9001:2015, ISO 14001:2015 and OHSAS 18001:2007.
HAOMAI builds own RELAYSTAR laboratory and performance test laboratory, and possesses professional production equipment and testing instruments in factory, such as Agilent 34401A 6 1/2 High-precision Meter, FLUKE Multi-meter, EMH Standard Meter, CLOU Standard Power Source, Oscilloscope, Phase Meter, Insulation Test System, High Voltage Dividers, AC High Voltage Generator, Time Calibration Tester, Standard Micro-resistance etc.
HAOMAI is China well-known mark recognized and approved by State Administration for Industry & Commerce of People's Republic of China, and enjoys high reputation in domestic and foreign markets.
HAOMAI now is the key supplier for SGCC(State Grid Corporation of China) and CSG(China Southern Power Grid). Till 2018 HAOMAI products have been sold to 34 different countries. 
HAOMAI always sticks to the faith of "cooperation and sharing", takes the "technology and market" as the direction, "creation and innovation" as the soul, listens to clients carefully, and improves the technology, upgrades the products, optimizes the service and tries all to be the global leader in electrical power test and measurement instruments field.

Our Advantages

Portable Current Transformer CT PT Tester

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