TZW20F-12 Outdoor intelligent vacuum circuit breaker complete set
Outline
TZW20F – 12, outdoor intelligent vacuum circuit breaker complete set, is an intelligent complete set based on the outdoor vacuum circuit breaker. The vacuum circuit breaker is compatible with TF intelligent demarcation switch light controller and power transformer (PT), installed behind the point of common coupling of distribution power line users’ service wire at the 3 – 12 KV voltage. And it can also be installed in a branch circuit or the end of subscriber line that meets the requirements. It can realize the automatic diagnosis fault of the power grid, automatically isolate the fault section and recover the power supply of the non – fault section without the communication line; or connect with the communication system, realizing the telemetry automation and computer control automation through the control unit of the substation and the master station to improve the reliability and automotive level of power supply.
Outdoor intelligent vacuum circuit breaker of TZW20F – 12 is widely used in various distribution fields such as substations, industrial and mining enterprises, protection and control of urban and rural networks, automatic distribution networks and frequent operations of city and country, etc.
This product mainly meets the following national standards:
Switch section:
GB1984-2003 high voltage ac circuit breaker
GB / T11022-1999 standard common technical requirements for high voltage switchgear and control equipment
Control terminal section:
GB / T726-20000 basic test method for breakers and devices
GB / T17626-4-1998 Electromagnetic Compatibility Test and Measurement Technology Electrical Fast Transient Burst Immunity Test
Environmental conditions
Ambient air temperature: -40℃ ~ +40℃, daily range of temperature; the daily temperature difference does not change more than 25℃;
Wind speed: no more than 35 m/s;
Places with no flammable, explosive hazard, strong chemical corrosives (various acids, alkalis or smoke, etc.) and severe vibration;
Elevation: ＞1000m, please consult with the manufacturer in the high elevation area;
Ice thickness: 10mm;
Air pollution level: Level IV;
Earthquake intensities: ＞ 8 degrees;
Grid neutral ground mode: neutral point is not grounded, neutral point grounded by arc suppression coil, neutral point grounded via low resistance.
Model implication
TZW20F – 12/ □ – □
T: enterprise code (TENPRO Power Technology)
Z: arc-quenching medium (Z – vacuum)
W: environment (W – outdoor)
20F: design serial number
12: nominal voltage (KV)
□: rated current (A)
□: rated short circuit breaking current (KA)
Main technical parameters
