Automatic CT PT Analyzer Current Transformer Analyzer CT Testing Equipment

• After-sales Service: Lifetime Technical Support
• Warranty: 1 Year for Automatic CT PT Analyzer
• Product Name: Automatic CT PT Analyzer Current Transformer Analy
• Usage: Transformer Tester
• Test Standards: IEC60044-1/2/5/6
• Voltage Output: 0.1~180V (AC)
• Model NO.: GDVA-405
• Current Output: 0.001~5A(RMS)
• Maximum Knee Voltage: 45kv
• Power Supply: 220V 50Hz
• Current Measurement Range: 0~10A
• Secondary Current: 1A,3A,5A
• Power Output: 500va
• Transport Package: Wooden Case
• Specification: 49*36*19cm
• Trademark: GOLD
• Origin: Chongqing, China
• HS Code: 9031809090
• Production Capacity: 200PCS/Month CT PT Analyzer

Product Description

Automatic CT PT Analyzer Current Transformer Analyzer CT Testing Equipment


What is CT and PT in transformer?

1. Current Transformer (CT):
    

   

   Purpose: A current transformer is designed to produce an alternating current in its secondary winding which is proportional to the current in its primary winding.
   Function: CTs are used to reduce high current levels to a lower value which can be easily handled by regular instruments and devices.
   Usage: They are commonly used for current monitoring and protection in electrical systems, and for providing inputs to metering systems, protective relays, and other instruments.
   Design: CTs are designed to operate under a range of current levels with a focus on maintaining accuracy at a specific current level.

   
    

2. Potential Transformer (PT):
    

   • Purpose: Also known as a voltage transformer, a PT is designed to produce an alternating voltage in its secondary winding which is proportional to the voltage in its primary winding.
   • Function: Its primary function is to reduce high voltage levels to a lower, standardized level which can be safely monitored and measured.
   • Usage: Potential transformers are used in electrical systems for voltage monitoring and protection, and they provide input to metering systems, protective relays, and other control and monitoring devices.
   • Design: PTs are calibrated to maintain accuracy over a range of voltage levels.

   

    

What can ct pt analyzer test?
 

1. Turns Ratio Testing:

   This test verifies the ratio between the primary and secondary windings of the transformer. It's essential for ensuring that the transformer operates correctly and provides the expected step-up or step-down voltage or current.

2. Excitation Curve Measurement:

   This involves measuring the magnetizing current of the transformer to understand its excitation characteristics. It's important for assessing the transformer's core saturation properties and its behavior under different operating conditions.

3. Winding Resistance Measurement:

   This test measures the resistance of the transformer windings. High resistance can indicate problems such as poor connections or damaged windings, which can affect the transformer's efficiency and performance.

4. Demagnetization:

   CTs and PTs can retain a magnetic field which can affect their performance. The analyzer can demagnetize the transformer to ensure it returns to its initial state.

5. Burden Measurement:

   The analyzer assesses the burden (load) connected to the transformer's secondary side. This is crucial for ensuring that the transformer can drive its connected load without any issues.

6. Secondary Loop and Wiring Tests:

   These tests check for issues in the secondary wiring and connections of the transformer, which can impact its overall performance.

7. Accuracy Class Verification:

   The analyzer can verify if the transformer meets its specified accuracy class for current or voltage transformation, which is vital for applications where precise measurements are crucial.

8. Phase Angle Error Measurement:

   It measures the difference in phase angle between the primary and secondary windings, which is important for ensuring the accuracy of power system measurements, especially in protective relaying.

9. Knee Point Voltage Measurement (for CTs):

   This test determines the knee point voltage of a CT, beyond which the transformer saturates. It's critical for protection CTs used in differential and distance protection schemes.

10. Protection Relay Testing:

    Some advanced analyzers can also simulate different operating conditions to test and calibrate protection relays that are connected to CTs and PTs.

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