OIL BREAKDOWN VOLTAGE (BDV) TEST SET

Product Description

TECHNICAL FEATURES:

Input Power Supply : 230Volts, 1 ph. 50Hz AC.

Output Voltage : Continuously variable from 0 to 100 KV AC with center point of HV winding grounded ie. (50KV-0-50KV).

Duty Cycle : The OT Set will be designed for Intermittent rating, as per requirement of test ntervals.

Nature of Cooling : The Transformer will be Cast Resin

Electrodes : Spherical /Cylindrical & Mushroom type detachable.

The Test Set consists of

 Power Mains ON-OFF operation is done by means of an illuminated ON-OFF switch along with fuse protection.

 'EMERGENCY OFF™ push button.

 KEYBOARD: Key matrix will be provided to select mode of testing standard, sequence of operation etc.

 PRINTER: One built-in 24 column dot matrix printer will be provided.

 MAGNETIC STIRRER: For Oil circulation within the Test vessel.

 Isolation transformer for control operation, auxiliary supply to power supply for electronic PCBs.

INDICATIONS

ï· 'HT ON™ lamp indication.

ï· Lamp indication for 'STIRRING ON™, 'END OF TEST™ & 'TEST PASS/FAILURE™.

DISPLAY:

One LCD display and key pad will be provided to set programs.

ï· Measuring Accuracy: +1.5%+ 0.1KV

ï· Resolution: 0.1KV

This LCD will indicate the following:

ï· Sl. No. of Test Specification selected

ï· Mode of Operation (As listed in Table 01 )

ï· Initial Stand time in secs.

ï· Rate of Rise of voltage in KV/secs.

ï· Stir Time Test Duration in secs.

ï· Stand Time Test Duration in secs

ï· No. of cycles.

ï· Individual Break Down Voltage (Vpeak/ˆš2)

ï· Arithmetic mean breakdown voltage

INTERLOCK:

ï· Zero start interlocking will be provided to ensure that the HV circuit cannot be energised unless the regulator is initially kept or brought back to zero position.

ï· HT CHAMBER Door interlocking will be provided to ensure that the HV circuit cannot be energised unless the transparent cover of the oil cell placement chamber is closed.

ï· Minimum & maximum position interlock will be provided so that limit switch will automatically disconnect 'INCREASE/DECREASE™ circuit of motor connection at maximum and minimum position respectively

PROTECTION:

ï· Besides main switch & fuse in the input side, one CT and contactor provides a snap acting automatic tripping of HV circuit in case of over load or break down of oil sample under test. On tripping the last applied test voltage will be latched & indicated in the LCD.

ï· Double ground protection will be provided.

ï· Electromagnetic shielding of High Voltage Test set.