Description

“NTPL” MAKE 30KV/50mA AC HIGH VOLTAGE TEST SET IN SINGLE UNIT SERIES: AHVMNDR1 TYPE: 030K050m

“NTPL” make AC High Voltage Test Set is suitable for Power frequency applied voltage test on          transformers, motors, insulators etc. for which the test parameters are within the technical scope of output of the test set. The set is capable of giving continuously variable High Voltage from 0 to 30KV AC.

technical features :

Input               :           230 Volts, single phase, 50Hz, AC.

Output           :            Continuously variable from zero to 30KV AC.

Capacity        :             50mA max. at HT side.

Duty               :            Intermittent i.e. 5 minutes ON, 10 minutes. OFF.

• Output voltage variation: By means of manual rotation of regulator.
• Over load tripping adjustment: At 25mA & 50mA.
• Over Voltage Indication provided.

The above test kit will be portable and in single unit consisting of Control & Measurement Circuit & HV Transformer. The Test components will be housed within a sheet metal cabinet treated properly and powder coated.

CONTROL & MEASUREMENT CIRCUIT:

• Power Mains ON – OFF operation is done by means of an ON – OFF switch along with ‘MAINS ON’ lamp indication & Fuse.
• ‘HT’ ON – OFF push buttons along with ‘HT ON’ lamp indication.
• Continuously variable autotransformer of suitable capacity to increase/decrease the output test    voltage up to the required voltage level.
• Zero start interlocking will be provided to ensure that the HV circuit cannot

Be energized unless the regulator is initially kept or brought back to zero

position.

• Automatic tripping mechanism for protecting the HV transformer against over loading. The tripping mechanism can be adjusted at different values as mentioned above. After tripping, High Voltage will be switched OFF.
• Digital Voltmeter generally connected to the LT side and scaled in KV. Resolution: 0. 1KV.
• Digital milliammeter along with ‘Press to read mA’ push button to read the leakage current. Resolution: 0.1mA
• A Timer will be provided to count down the HV application time. A Buzzer will indicate the end of test.
• In case the voltage exceeds the maximum rated value a lamp & buzzer will indicate over voltage.
• Memory device enables the meter of the Test Set to indicate the breakdown voltage by pressing the ‘MEMORY’ push even after the high voltage circuit is tripped OFF.

HV TRANSFORMER:

HV Transformer used in the Test Set will be cast resin type of suitable capacity. The HV winding is of graded insulation one end being connected to the earth potential through a CT operated milliammeter & tripping device, while the other end remains in floating condition as HT Terminal.

The transformer will be designed to withstand frequent intermittent spark over or short circuit                  conditions under which such testing transformers are designed to operate.

DOCUMENTS:

Operation Manual, Works Test Report, Warrantee Certificate will be supplied along with the set.