DC Test Sending Instrument Principle
I. DC Test Sending Instrument Main Technical Indicators
★Output Voltage: 8kV ★Output Current: 70mA ★Power Supply: AC220kV, 50Hz
It adopts a single-frame core-type iron core structure, with the primary winding and high-voltage winding coaxially wound on the iron core, thereby reducing leakage flux and increasing coupling between windings. The overall structure of the product is compact, with strong versatility, and is easy to carry and use. It is suitable for testing the insulation performance of various high-voltage electrical equipment on site in power systems and for power users. It is an essential test instrument for power equipment testing and preventive tests.
It is mainly used for withstand voltage tests before power transmission on various distribution network lines. It completely overcomes the hidden dangers of accidents caused by traditional line insulation-based power transmission, and resolves the contradiction between the dispatch department and the distribution department.
II. Main Functional Features
2.1 Personal safety protection design: after stopping high voltage, cutting off power, or accidental power outage, automatic discharge is performed first;
2.2 The output high-voltage wire is long enough to suit various on-site uses, and is set for easy carrying;
2.3 Impact-resistant and interference-resistant, with built-in power protection, automatically cutting off power when power exceeds;
2.4 Integrated design for easy carrying, suitable for on-site operations;
2.5 Large capacity, output current up to 70mA (reserved to 100mA);
2.6 Simple operation, only need to operate the close/open switch and voltage-raising knob;
2.7 Intuitive panel, output voltage and leakage current can be directly observed from the meter;
2.8 Linear voltage increase, high control accuracy of high-voltage output;
2.9 Zero-position start high-voltage protection function;
2.10 Overcurrent protection function;
2.11 Internal anti-vibration design for reliable equipment use.
2.12 The panel should have operation instructions, operating steps, and precautions.
III. DC Test Sending Instrument Technical Parameters
5.1 Power: 600W, can output 8kV/70mA for a long time;
5.2 Power supply: AC220V 50Hz, designed with a wide voltage range of at least 160V.
5.3 For generator power supply, a 2kW generator is required.
