Description
The transformer winding deformation tester is used for power transformer with voltage grade of 6kV and above and other transformers with special purpose. The power transformer is inevitably vulnerable to impulse of various fault short-circuit current or physical collision in the process of operation and transportation and the transformer windings may lose stability under the powerful electro-dynamic force exerted by such short-circuit current, which could result in permanent deformations such as local distortion, swell or dislocation and will severely affect safe operation of the transformer. Deformation of transformer windings is measured with frequency response analysis method according to national standard DL/T911-2004 for electric power industry, i.e. detect amplitude-frequency response characteristic of each transformer winding and make vertical or horizontal comparison of the detection result to judge possible deformation of the transformer winding based on change of amplitude-frequency response characteristics.
* Characteristics of transformer windings are measured with frequency sweep method. Deformations of windings such as distortion, swell or displacement of 6kV and above transformer are measured by detecting amplitude-frequency response characteristics of each winding, not requiring lifting of transformer enclosure or disintegration.
* Quick measuring, measuring of a single winding is within 2 minutes.
*High frequency accuracy, higher than 0.001%.
*Digital frequency synthesis, with higher frequency stability.
*5000V voltage isolation fully protects safety of the testing computer.
*Able to load 9 curves at the same time and automatically calculate parameters of each curve and diagnose winding deformations to provide the reference diagnosis conclusion.
*Analysis software has powerful functions and software and hardware indicators satisfy national standard DL/T911-2004.
*Software management is humanized with high degree of intelligence. You only need to click a key to complete all measurements after setting of parameters.
*The software interface is concise and vivid, with clear menus of analysis, save, report export, print, etc.
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Measuring speed: 1 min- 2 min for single-phase winding |
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Output voltage: Vpp-25V, adjusting automatically in test |
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Output impedance: 50Ω |
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Input impedance: 1MΩ (the response channel is built with 50Ω matching resistance) |
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Frequency scan scope: 10Hz-2MHz (10Hz-25MHz, optional) |
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Frequency accuracy: 0.001% |
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Frequency scan manner: linear or logarithmic, frequency sacn interval and number of sweep points are freely settable |
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Curve display: amplitude-frequency curve (phase-frequency curve, optional) |
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Width of measuring dynamic range: -100dB~20dB |
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Supply voltage: AC100-240V 0-400Hz Tester weight: only 3.6 |
Shipping Policy
- Delivery Locations & Times: Equipment will be delivered to the location and at the time specified in your Hire Schedule. Delivery is acknowledged in writing or deemed to occur at the Hire Commencement Time.
- Responsibility During Shipping: From the moment the Hire Period begins, the customer is solely responsible for all risks of loss or damage to the equipment until it is returned to Zenith or collected by Zenith from the agreed location.
- Return Shipping: When returning equipment, customers must ensure all items and accessories are properly packed, secured, and labeled to prevent loss or damage during transit. Failure to do so may result in liability for repair or replacement costs.
- Shipping Fees: Shipping fees are specified in the Hire Schedule and must be paid as outlined in your agreement.
Late Return Policy
- Return Deadline: Equipment must be returned by the Date for Return specified in your Hire Schedule. If you anticipate a delay, you must notify Zenith as soon as possible.
- Extensions: Requests for extensions must be made in advance. Approval is at Zenith’s discretion and may incur additional fees.
- Late Fees: If equipment is not returned on time, you will be liable for liquidated damages at the rate specified in your Hire Schedule. This amount is a genuine pre-estimate of Zenith’s loss due to the delay.
Refund Policy
- Bond Refund: After the equipment is returned and inspected, Zenith will refund the bond if there is no damage beyond normal wear and tear and all payments are up to date.
- Deductions from Bond: If the equipment is damaged, Zenith may retain part or all of the bond to cover repair or replacement costs. If any monies are owed (including late fees), Zenith may also retain the bond to cover these amounts.
- Shipping Fees and Additional Charges: Upon return, any outstanding shipping fees or additional charges (including late fees) must be paid before the bond is refunded.
