EEU Specification for Transformer Oil BDV Test Set
Functional Requirement:
1. The instrument should be suitable for Automatic Measurement of Electrical Breakdown Strength of transformer oil as per relevant standards.
2. The test results should have repeatability, consistency in laboratory condition.

Test Output: 0 - 100 kV (Rate of rise: 0.5 to 5KV/Sec)

Accuracy: ±1 kV

Resolution: 0.1 KV

Switch off Time: <1ms

Display/Control: LCD/Keypads.

Printer: Inbuilt/External

Measurement/Programmes: Fully Automatic Pre-programmed/User programmed Test Sequences including as per latest IEC & other national/international standards.

Test Lead/Accessories: One complete set of electrodes, gauge etc. compatible with the instruments should be provided for successfully carrying out the test in EEU S/S. Additionally all the required accessories, tools, drawing, documents should be provided for the smooth functioning of kit. Further hard carrying case (which should be robust/ rugged enough) for ensuring proper safety of the kit during transportation shall have to be provided.

Design/Engg.: The complete equipment along with complete accessories must be
designed/engineered by Original Equipment Manufacturer.

Power Supply: It shall work on input supply variations, V: 230 ±10%, f: 50 Hz ±5% on standard sockets.

Operating Temperature: 0 to +50 deg C

Relative humidity: Max. 90% non-condensing.

Protection/Control: Against short circuit, over load, transient surges etc. Also the instrument should have facility of stopping automatically on power failure. Also the kitshould have facility of HV chamber interlocking as well as zero start interlocking.

Display/Control: LCD/keypads.

Environment: The test kit shall be compatible for EMI/EMC/Safety environment
requirement as per IEC.

Guarantee: Warranty/Guarantee Period: Min 01 year from the date of successful & complete commissioning at EEU sub-station.
All the materials, including accessories, cables, laptops etc. are to be
covered under warranty/guaranty period. If the kit needs to be shifted to supplier's work for repairs within warranty/guaranty period, suppliers will have to bear the cost of spares, software, transportation of kit for repair at test lab/ works.

Calibration Certificate: Unit shall be duly calibrated before supply and the date of calibration shall not be older than two month from the date of supply of Kit.

Training: Supplier shall have to ensure that the instrument is made user friendly. Apart from the detailed demonstration at site, the supplier shall also have to arrange necessary training to EEU engineers.

Commissioning, handing over the Instrument: Successful bidder will have to commission the instrument to the satisfaction of EEU. The instrument failed during the demonstration shall be rejected and no repairs are allowed.

After sales service: Bidder will have to submit the documentary evidence of having established mechanism in India for prompt services.