10KV ring box
One or two times fusion ring network box is an intelligent complete set of equipment launched with the requirements of “Technical Standard for One or Two Times Complete Set of Equipment for Power Distribution”.
Categories：
Compact Substation
Product Overview
One or two times fusion ring network box is an intelligent complete set of equipment launched with the requirements of “Technical Standard for One or Two Times Complete Set of Equipment for Power Distribution”, which integrates the characteristics of power distribution network in each region of China and the actual situation of urban power distribution cable transformation. It consists of ring-in-ring-out unit, feeder unit, busbar equipment (PT) unit, centralized DTU and connecting cable. It is capable of collecting active power, reactive power, power factor, frequency, zero sequence current and zero sequence voltage, with line loss measurement, power measurement function, as well as line voltage identification, voltage overrun, load overrun and other alarm uploading, short-circuit fault detection and processing, single-phase grounding fault detection and processing, supporting short-circuit/grounding fault event uploading to meet the needs of distribution network automation.
Technical parameters and application environment conditions
Rated voltage: 12V
Rated current: 630A
Industrial frequency withstand voltage (phase ground): 42k V/min
Lightning impulse voltage: 74kV
Rated breaking current: 630A
Rated short-circuit opening and closing current (peak): 50kA
Rated short-circuit withstand current：25/4 kA/S
Rated peak withstand current: 50kA
Air temperature: the maximum surrounding air temperature does not exceed +40℃, the lower limit of surrounding air temperature is -40℃;
Pollution level: Class IV;
Ice cover thickness: 20mm
Humidity: the average daily value of relative humidity is not more than 95%, and the average monthly value is not more than 90%;
Seismic capacity: geomorphic horizontal acceleration 3.0 m/s2.
Key words:
10KV ring box
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