CN201887332U

CN201887332U - Simple distribution board

Info

Publication number: CN201887332U
Application number: CN2010206253203U
Authority: CN
Inventors: 温刚; 戚小溪; 牛俊朋; 牛源落
Original assignee: Fuyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: Fuyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2010-11-21
Filing date: 2010-11-21
Publication date: 2011-06-29
Anticipated expiration: 2020-11-21

Abstract

The utility model relates to a simple distribution board divided into four areas, namely an a area, a b area, a c area and a d area, wherein the a area is a metering unit, the b area is a distribution control and protection unit, the c area is a lightning protection unit and the d area is a capacitance compensation unit. The simple distribution board is characterized in that the a, b and d areas are installed at the front part of the distribution board, the c area is installed at the rear part of the distribution board, and the units are connected with one another through lead wires; incoming and outgoing lead wires of the device are weather resistant insulating electric wires, and when penetrating through a box or a shell, the incoming and outgoing lead wires are protected through sleeves; and one terminal is only connected with one conducting wire. The simple distribution board has the advantages of novel and reasonable design, changes the separate type and open type into the intensive type so as to reduce the floor space and to save the cost, and has comprehensive functions as well as strong capability of preventing electivity from being stolen, thus being applicable to the upgrade of power grids and meeting the requirements on automation of power distribution networks.

Description

Simple switchboard

Technical field:

The utility model belongs to the electric power low-voltage distribution apparatus, particularly a kind of simple switchboard of transforming at rural power grids, city net electricity consumption.

Background technology:

At present, China is in industrial and mining enterprises, commercial residential building sub-district and vast rural area, and the batch meter in former transformer platform district, combination switch case, reactive power compensation case etc. intersect mutually, installs chaotic.1. functions such as the inlet wire of switchgear house, outlet, metering, reactive power compensation are respectively realized by single screen cabinet, and cost is high and poor for applicability; 2. anti-stealing electricity function is poor; 3. do not possess the remote measurement control ability, the operation maintenance inconvenience; 4. power back-off inaccuracy, electric capacity is crossed benefit can increase reactive power, and the consumption that increases electric energy causes economic loss.

Summary of the invention:

At the defective or the drawback of the said goods, the purpose of this utility model provides and a kind of controlled function, defencive function, measurement function, compensate function, distribution is integrated in one, and increases the outdoor simple switchboard of remote measurement controlled function.

The utility model is achieved through the following technical solutions.

Simple switchboard is divided into a, b, four positions of c, d; the a position is a metering units; the b position is a distribution control protected location; the c position is the lightning protection unit; the d position is the capacitance compensation unit; it is characterized in that: a, b, three positions of d are installed in the front portion of switchboard, and the c position is installed in the rear portion of switchboard.

Described metering units is made of gauge table, metering instrument transformer, and gauge table has remote communications port, ruuning situation can be transferred in the supervising device.

Described distribution control protected location dispose by three grades of earth leakage protectives: total earth leakage protective, classification earth leakage protective, final user's earth leakage protective formation of loading are arranged; master switch or leakage switch have the performance of long delay and instantaneous operation; the operating current of its instantaneous release; be generally 6 times to 10 times of step down side rated current, the operating current of long delay release is determined according to the overload electric current that step down side allows.

Installing lightning arrester in the described lightning protection unit, cabinet, lightning arrester is one group of low-voltage alternating-current gapless metal-oxide zinc lightning arrester, and the ground connection dedicated terminals of arrester ground downlead is set in the cabinet.

Described capacitance compensation unit; be divided into fixed compensation: select for use low pressure metal capacitor and distribution transformer to be connected in parallel; do " with device " compensation; its compensation capacity is 1/14 of a transformer capacity; dynamic compensation: compensation capacity is the 30/100-40/100 of transformer capacity; with the same contactor of capacitance compensation controller, thermoelectric device with sky is opened or fuse cooperates, go into switching and accident protection.

Connected by lead-in wire between each unit, the turnover lead-in wire of device adopts weather type insulated electric conductor, adds casing protection when passing through the case shell, and a terminal only connects a lead.

The utility model characteristics: novel in design rationally discrete and open type are changed into centralized, reduced floor space, saved cost, multiple functional, anti-electricity-theft ability is strong, is applicable to the requirement of electric network reconstruction and distribution automation.

Description of drawings:

Accompanying drawing 1 is the utility model forward sight structural representation.

Accompanying drawing 2 is the utility model backsight structural representations.

In the accompanying drawings, the 1st, electric capacity, the 2nd, gauge table, the 3rd, idle compensating control, the 4th, go out wiretap, the 5th, inlet wire management through walls is a lightning arrester, the 7th, service entrance switch.

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in the figure; simple switchboard is divided into a, b, four positions of c, d; the a position is a metering units; the b position is a distribution control protected location; the c position is the lightning protection unit; the d position is the capacitance compensation unit, it is characterized in that: a, b, three positions of d are installed in the front portion of switchboard, and the c position is installed in the rear portion of switchboard.

Described metering units a is made of gauge table 2, metering instrument transformer, and gauge table 2 has remote communications port, ruuning situation can be transferred in the supervising device.

Described distribution control protected location b dispose by three grades of earth leakage protectives: total earth leakage protective, classification earth leakage protective, final user's earth leakage protective formation of loading are arranged; master switch or leakage switch have the performance of long delay and instantaneous operation; the operating current of its instantaneous release; be generally 6 times to 10 times of step down side rated current, the operating current of long delay release is determined according to the overload electric current that step down side allows.

Installing lightning arrester in the described lightning protection unit c, cabinet, lightning arrester is one group of low-voltage alternating-current gapless metal-oxide zinc lightning arrester, and the ground connection dedicated terminals of arrester ground downlead is set in the cabinet.

Described capacitance compensation unit c; be divided into fixed compensation: select for use low pressure metal capacitor and distribution transformer to be connected in parallel; do " with device " compensation; its compensation capacity is 1/14 of a transformer capacity; dynamic compensation: compensation capacity is the 30/100-40/100 of transformer capacity; with the same contactor of capacitance compensation controller, thermoelectric device with sky is opened or fuse cooperates, go into switching and accident protection.

Claims

1. simple switchboard is divided into a, b, four positions of c, d; the a position is a metering units; the b position is a distribution control protected location; the c position is the lightning protection unit; the d position is the capacitance compensation unit; it is characterized in that: a, b, three positions of d are installed in the front portion of switchboard, and the c position is installed in the rear portion of switchboard.

2. simple switchboard according to claim 1 is characterized in that: described metering units is made of gauge table, metering instrument transformer, and gauge table has remote communications port, ruuning situation can be transferred in the supervising device.

3. simple switchboard according to claim 1; it is characterized in that: described distribution control protected location is disposed by three grades of earth leakage protectives; total earth leakage protective, classification earth leakage protective are arranged, finally the user's earth leakage protective of loading constitutes, master switch or leakage switch have the performance of long delay and instantaneous operation.

4. simple switchboard according to claim 1 is characterized in that: installing lightning arrester in the described lightning protection unit, cabinet, lightning arrester is one group of low-voltage alternating-current gapless metal-oxide zinc lightning arrester, and the arrester ground dedicated terminals is set in the cabinet.

5. simple switchboard according to claim 1; it is characterized in that: described capacitance compensation unit; be divided into the compensation of fixed compensation and electricity capacity; the fixed compensation capacity is 1/14 of a transformer capacity; dynamic compensation: compensation capacity is the 30/100-40/100 of transformer capacity; with the same contactor of capacitance compensation controller, thermoelectric device with sky is opened or fuse cooperates, go into switching and accident protection.

6. simple switchboard according to claim 1 is characterized in that: connected by lead-in wire between each unit, the turnover lead-in wire of device adopts weather type insulated electric conductor, adds casing protection when passing through the case shell, and a terminal connects a lead.