PE Systems Pvt. Ltd. Bangalore Welcomes you for a presentation on COMPUTERIZED AUTOMATIC TRANSFORMER TEST BENCH
TRANSFORMER TEST BENCH • • Transformer Test Bench Models – Semi Automatic Model – Computerized Fully Automatic Model Tests Conducted by the Bench (Fully Automatic) – Load Loss Measurement – No Load Loss Measurement – Induced Over Voltage Test – Separate Source Voltage Test – Temperature Rise Test Other Routine & Type Tests – Can Conduct Test automatically if the Test Equipment available has RS 232/RS 485 Communication Ports – Provision for manually entering the Test Results Test Certificate – Generates Test Certificate for Individual Transformers – Test Results are stored in database for future reference
TRANSFORMER TEST BENCH • • Electrical Protections – Adequate Electrical Protections are provided for various tests – Isolation of other Test Circuits when a particular test is being conducted In-house Design & Production – Electrical Scheme for Test Bench – Intermediate Transformer Interface Scheme – Power Panel Design & Fabrication – Capacitor panel Design & Fabrication – CT Switching Panel Design & Fabrication – Desk Bench with Control Circuits – PC Software & Embedded Control Boards
Test Details • Tests that can be Conducted in Fully Automatic and Manual Mode – Load Loss Measurement Test with WTI CT Measurement – No Load Loss Measurement Test – Induced Over Voltage Test – Separate Source Voltage Test – Temperature Rise Test • Other Tests – Insulation Test – Winding Resistance Test – Turns Ratio Test – Vector Group Test – Breakdown Voltage of Oil Test – Magnetic Balance Test
Creating & Conducting Test on a New Job • Before Starting a Test on the Test Bench the User has to create a new Job – – Rating of the Transformer Design Losses Tap Details Impedance & other Details • To Start a Test select a Job from the main screen • From the Test Selection Menu select on the Test to be conducted on the Transformer
Creating a New Job
Selecting a Job for Conducting Tests
Test Selection Menu
Load Loss Measurement Test • The Test Bench determines the CT & PT to be used based on the Job ratings and Select the same automatically • It also selects the TAP of the Intermediate Transformer automatically • Based on the ratings of the Job the Test Bench automatically calculates and adds the required Capacitors • The Test Bench Conducts the test automatically, records the reading and Stops the Test • In case of abnormality in the results the Test is stopped Immediately
Load Loss Measurement Test
No Load Loss Measurement Test • The Test Bench determines the CT & PT to be used based on the Job ratings and Select the same automatically • It also selects the TAP of the Intermediate Transformer automatically • The Test Bench Conducts the test automatically, records the reading at three different percentage of LV/HV Voltage and Stops the Test • In case of abnormality in the results the Test is stopped Immediately • In case the Test is conducted in manual mode Capture Buttons are provided to capture the Test results from the Power analyzer
No Load Loss Measurement Test
Induced Over Voltage Test • The Test Bench determines the Voltage to be applied to the Job based on its ratings • The Test Bench automatically starts the Generator and builds up the voltage to the desired level • On reaching the desired level the Test is conducted for a time period of 60 Seconds • On completion of 60 seconds the test results are recorded automatically and the System is shut down • In case of abnormality in the results the Test is stopped Immediately
Induced Over Voltage Test
Separate Source Voltage Test • The Test Bench determines the Voltage (KV) to be applied to the Job based on its ratings • The Test Bench automatically slowly builds up the voltage to the desired level in the HV Shooter • On reaching the desired Voltage the Test is conducted for a time period of 60 Seconds • On completion of 60 seconds the test results are recorded automatically and the System is shut down • During the entire Test Period the System monitors the Leakage Current and Trips the System in case of a Job Failure • In case of abnormality in the results the Test is stopped Immediately
Separate Source Voltage Test
Other Routine Tests – – – Magnetic Balance Test Breakdown Voltage of Oil Test Vector Group Test Turns Ratio Test Winding Resistance Test Insulation Test
Insulation Test
Winding Resistance Test
Turns Ratio Test
Vector Group Test
Breakdown Voltage of Oil Test
Magnetic Balance Test
Test Certificate – Page 1
Test Certificate – Page 2
Our Prestigious Installations • Semi Automatic Test Bench – M/s. KPEL, Pune. • Computerized Fully Automatic Test Bench – M/s. Universal Power Transformer Pvt. Ltd. , Bangalore.
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