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 structure, with the primary winding and high-voltage winding coaxially wound on the core, thereby reducing leakage flux and increasing coupling between windings. The overall structure is compact, with strong versatility, and it is easy to carry and use. It is suitable for power systems and power users to test the insulation performance of various high-voltage electrical equipment on site, and 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 conflict 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 failure, automatic discharge is performed first;
2.2 The output high-voltage wire is long enough to suit various on-site uses, and is designed for easy carrying;
2.3 Impact-resistant and interference-resistant, with built-in power protection, and automatic power-off when power exceeds the limit;
2.4 Integrated design for easy carrying, suitable for field operations;
2.5 Large capacity, output current up to 70mA (reserved up to 100mA);
2.6 Simple operation: only need to operate the close/open switch and the 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, with a wide voltage range design down to 160V.
5.3 Generator power supply requires a 2kW generator
