Transparency scheme of low-voltage platform area

1. Program introduction

In the construction of low-voltage distribution network, there is still a lack of monitoring means from public change to users, and there is still a lack of sufficient data support for active repair of distribution network, low-voltage branch overload, and three-phase load adjustment. The transparent construction of low-voltage distribution lines of "distribution - line - user" is carried out.

① For the stock station area: install a low-voltage feeder monitoring device next to the circuit breaker to realize the intelligent transformation of the distribution cabinet, branch box and user table box, and realize the electric gas collection of line nodes, providing data support for the topology analysis of the station area, fault location and line loss analysis.

② For the new station area: directly select the smart switch to achieve line monitoring. Intelligent switch and low-voltage feeder monitoring device can be mixed application, flexible configuration according to demand, with extended topology identification, line loss analysis, event alarm, sensor collection and other functions, to achieve the transparent construction of low-voltage distribution line "change-line-household".

(3) For the safe operation of the transformer: multi-dimensional monitoring of the transformer environmental quantity is achieved through multi-functional cameras, pile head temperature sensors, water sensors, smoke sensors, etc.

2. Program characteristics

n Wide coverage

It can cover the process from transformer to the meter box household switch; the meter box monitoring terminal can realize the topology identification and power failure alarm of user switch. 1 meter box monitoring terminal can realize effects of a total of 8 intelligent micro circuit breakers.

n Full data

It can realize panoramic monitoring of zone area, including electrical quantity, environmental quantity and state quantity. The intelligent transformer terminal can monitor the transformer infrared spectrum, temperature, sound and partial discharge (PD) from different dimensions, thus effectively promoting the intelligent management of low-voltage substation area

n Edge processing

It can give full play to the edge computing capability of the fusion terminal and improve the use effect of fusion terminal

n Low investment

With modular and small size, the product supports plug and play. Compared with traditional solutions, it can save investment by 20%, and the cost of after-sales operation and maintenance by 80% respectively.

3. Solve the problem

①low voltage station area equipment, wide lines, accounting management difficulties;

②The "change-line-household" relationship in the stock station area is unclear, manual mapping is time-consuming and laborious, and it is difficult to update the drawing data in time after the line is updated;

③The problem that the fault point is difficult to query after the failure and the power failure time is long and the impact scope is large;

④ The problem of serious line loss in the low pressure platform area;