Zypv photovoltaic series surge protectors are suitable for new energy wind and solar power generation system with working voltage of 500V, 800V and 1000V. The installation position is in the main power supply system of DC circuit to protect indirect current, DC lightning current or other instantaneous overvoltage.

The intelligent digital display instrument is suitable for the measurement of voltage, electric power, active power, reactive power, apparent power, power factor and frequency in power grid and automatic control system. It has digital tube (LED) or liquid crystal (LED) direct display. It has the advantages of intuitive display, high precision, stable performance, strong isolation and anti vibration. It can be equipped with a variety of extended functions, including RS-485 communication, switch input, switch output and analog transmission output, etc.

1. High precision measurement of single-phase AC current or DC current
2. Provide digital tube display and local data query
3. Current and voltage ratio can be programmed
4. Support RS-485 communication and Modbus RTU protocol
5. Support switch input, switch output and analog output
6. Auxiliary power supply: AC / dc80v ~ 270V, AC220V
7. A variety of shapes to meet the requirements of different cabinet electrical circuits

1. high precision measurement of three-phase AC current or three-phase AC voltage
2. provide digital tube display and local data query
3. programmable setting of current and voltage ratio
4. support RS-485 communication and Modbus RTU protocol
5. support switch input, switch output and analog quantity output
6. auxiliary power supply: ac/dc80v~270v, AC220V, AC380V
7. various shape selection to meet the requirements of different cabinet electrical circuits

1. high precision measurement of active power, reactive power and apparent power of single and three-phase power grid
2. provide digital tube or LCD display, and query local data
3. programmable setting of current and voltage ratio
4. support RS-485 communication and Modbus RTU protocol
5. support switch input, switch output and analog quantity output
6. auxiliary power supply: ac/dc80v~270v, AC220V
7. various shape selection to meet the requirements of different cabinet electrical circuits

Multi function monitoring instrument is a high-performance monitoring instrument, which has the functions of high-precision real-time measurement of power parameters, harmonic measurement, positive and negative active / reactive energy measurement, time-sharing energy measurement, time-sharing energy reading, power quality analysis, real-time waveform display, event recording, demand, etc, It is equipped with abundant input and output interfaces, which can be used to detect and control the status of field equipment. It also integrates RS-485 communication interface, which can be integrated with various intelligent power distribution systems and energy management systems to share abundant detection data and power quality data.

1. the ambient air temperature is not higher than +40 ℃, and not less than -5 ℃
2. the elevation of the installation site shall not exceed 2000m
3. humidity: when the maximum temperature is +40 ℃, the relative humidity of the air shall not exceed 50%, and higher relative humidity can be allowed at a lower temperature, for example, 90% at 20 ℃
4. the pollution level of the surrounding environment is grade 3
5. the switch shall be installed in places without significant shaking, shock vibration and no monthly snow attack, and the installation site shall be free of explosive dangerous medium, and there shall be no gas and dust in the medium that is sufficient to corrode metal and damage insulation.

Hd11f and hs11f series single throw and double throw protective knife switches are new products developed by our company on the basis of HD11 and HS11. They are ideal substitutes for HD11, hd11f and HS11, which greatly improve personal safety protection performance and prevent electric shock. This series of products are mainly used in low-voltage distribution equipment for infrequently connecting, cutting and isolating power supply manually.