Description

“NTPL” MAKE 60KV/100mA AC HIGH VOLTAGE TEST SET SERIES: AHVMTDR2 TYPE: 060K100m

APPLICATION:

“NTPL” make 60KV/100mA AC High Voltage Test Set is suitable for Power frequency applied voltage test on transformers, motors, insulators, VCB’s 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 0-60KV AC.

TECHNICAL FEATURES:

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

Output                :               Continuously variable from zero to 60KV AC. Capacity          :              100mA max. at HT side.

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

• Output voltage variation: By means of motor driven
• rate of Rise of output voltage: 2KV/sec.
• Over load tripping adjustment at any setting from 25mA, 50mA &
• Over Voltage Indication & Protection

The above test kit will be in 2 units i.e.

1. Control & Measurement Unit.

2. HV Transformer

All the above units will be provided with wheels for easy movement.

 CONTROL & MEASUREMENT UNIT:

• Power Mains ON – OFF MCB along with ‘MAINS ON’ lamp
• ‘HT’ ON – OFF push button along with ‘HT ON’ lamp
• Continuously variable autotransformer of suitable capacity to increase the output test voltage up to the required voltage
• INCREASE/DECREASE circuit to control motor operated Voltage Regulator. When high voltage circuit is switched ON the regulator will rotate to increase the output voltage when‘INCREASE’ push is pressed ON or decrease the output voltage when ‘DECREASE’push is pressed.

METERING:

• Digital Voltmeter generally connected to the LT side of HV Transformer for measurement and scaled in KV. Resolution: 1KV.
• Digital milliammeter along with ‘PRESS TO READ mA’ push button to read the leakage current. Resolution: 1mA
• A ‘TIMER’ will be provided to measure the duration of applied HV. A Buzzer will indicate the end of test and the voltage regulator will gradually & automatically decrease to reduce the voltage level to

PROTECTION & INTERLOCK:

• 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
• 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
• In case of over voltage a lamp & buzzer will indicate over voltage and the increase mode circuit will be automatically cut

The whole control circuitry will be housed within a sheet metal cabinet properly powder coated.

HV TRANSFORMER UNIT:

HV Transformer used in the Test Set will be cast resin type of suitable capacity. The HV winding of the transformer 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 conditions under which such testing transformers are designed to operate over or short circuit conditions under which such testing transformers are designed to operate.

DOCUMENTS:

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

Approx. Dimension:

Control & Measurement Unit

Length=690mm X Width =525mm X Height=450mm Transformer Unit
 

Approx. Weight:

Control & Measurement Unit : 42Kgs

Length=570mm X Width=480mmX Heigth=782mm

Transformer Unit : 80Kgs.