CN204440063U - A kind of universal mast switch controller - Google Patents

Abstract

The utility model discloses a kind of universal mast switch controller, comprise core cpu module and the analog input channel be attached thereto respectively, On-off signal output module, man-machine interface, communication module and power module, wherein, the input end of analog input channel gathers the curtage information of on-pole switch, and sends into core cpu module; The internal switch amount of described On-off signal output module Read Controller and external switch amount also send into core cpu module; Described power module is core cpu module for power supply, and by core cpu module for other assembly provides working power.This kind of controller has higher versatility, can meet different Switch main bodies, different controlling functions, different application conditions to the requirement of controller hardware.

Description

A kind of universal mast switch controller

Technical field

The utility model belongs to electric field, particularly a kind of mast switch controller structure with versatility.

Background technology

On-pole switch is mounted in outdoor aerial circuit to be connected and cut-offs the power equipment of power transmission branch road (feeder line), is made up of Switch main body and controller.Switch main body mainly comprises on-load switch and isolating switch, the difference of structure and purposes, causes the controlling functions of different on-pole switchs different, thus needs different types of controller.Current on-pole switch is on the market all Switch main body and controller pattern one to one, a kind of controller can only be used for the same equipment of same producer, not there is versatility, this just causes user to be the situation that reply equipment failure needs the spare controller broad categories of deposit, both cost was added, turn increase the complexity of equipment control, have much room for improvement.

Based on current on-pole switch in use produced problem, the present inventor carries out Improvement to the controller architecture of on-pole switch, and this case produces thus.

Utility model content

The purpose of this utility model, be to provide a kind of universal mast switch controller, it has higher versatility, can meet different Switch main bodies, different controlling functions, different application conditions to the requirement of controller hardware.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of universal mast switch controller, comprise core cpu module and the analog input channel be attached thereto respectively, On-off signal output module, man-machine interface, communication module and power module, wherein, the input end of analog input channel gathers the curtage information of on-pole switch, and sends into core cpu module; The internal switch amount of described On-off signal output module Read Controller and external switch amount also send into core cpu module; Described power module is core cpu module for power supply, and by core cpu module for other assembly provides working power.

The on-pole switch that described controller is applied is equiped with the combination of voltage transformer (VT), phase current mutual inductor and zero sequence current mutual inductor, 4 voltage sample passages are comprised in described analog input channel, each voltage sample passage all can independently be opened or close, and is connected with the Secondary Winding of 1 voltage transformer (VT) when opening; Described analog input channel also comprises 7 current sample passages; wherein 3 is protected level current sample passage; 3 is measure level current sample passage; 1 is zero-sequence current sampling channel; each current sample passage all can independently be opened or close; and when opening; the protected level Secondary Winding of protected level current sample passage and phase current mutual inductor connects one to one; the measurement level Secondary Winding measuring level current sample passage and phase current mutual inductor connects one to one, and zero-sequence current sampling channel is corresponding with the Secondary Winding of zero sequence current mutual inductor to be connected.

Described man-machine interface comprise respectively with the button of core cpu model calling, pilot lamp and liquid crystal display, wherein, liquid crystal display and pilot lamp show under the control of core cpu module, and button directly operates controller with for operating personnel.

Described communication module comprise respectively with the RS232 module of core cpu model calling, ethernet module, SIM card module and 100BaseFX module.

After adopting such scheme, the utility model has following beneficial effect:

(1) realize the Switch main body with unified hardware controls different structure and function, reduce the deposit value volume and range of product of user's spare controller;

(2) buying of user to Switch main body and controller can independently be carried out, and is conducive to market competition and reduces costs;

(3) Switch main body needs upgrading or needs no longer to need more changer controller when changing because of fault, can reduce device upgrade and replacement cost and work difficulty, accelerate the course of work.

Accompanying drawing explanation

Fig. 1 is integrated stand composition of the present utility model.

Embodiment

Below with reference to accompanying drawing, the technical solution of the utility model and beneficial effect are described in detail.

As shown in Figure 1, the utility model provides a kind of universal mast switch controller, comprise core cpu module, analog input channel, On-off signal output module, man-machine interface, communication module and power module, when specific implementation, can by core cpu module independent design on one piece of circuit board, power module independent design is on one piece of circuit board, and remaining component Joint Designing is on one piece of circuit board, introduces respectively below.

Core cpu module adopts Samsung S3C2440 processor, to implant built-in Linux operating system carrying out hardware management resource, reduces controller cost.

In the present embodiment, described analog input channel is designed to 11, comprise 4 voltage sample passages and 7 current sample passages, respectively with core cpu model calling, each passage can independently be opened or close, thus meets the electric parameters detection demand being equiped with the voltage-type on-pole switch of 1 to 4 voltage transformer (VT), the current mode being equiped with 1 to 4 current transformer (containing 1-7 secondary side winding) and compound on-pole switch.Wherein, voltage sample passage adopts multiplex mode, when controlling the on-pole switch of power uniflux, 4 voltage sample passages respectively can according to the installing mode of voltage transformer (VT) for measuring one-sided A, B, C three-phase phase voltage of on-pole switch and residual voltage, or AB, BC, CA tri-line voltages and residual voltage, when controlling on-pole switch (i.e. the interconnection switch) of the two-way flow of power possibility, 4 voltage sample passages are respectively used to AB and the BC line voltage can measuring on-pole switch both sides, described 7 current sample passages are divided into the passage 6 (A measuring phase current, B, each 2 of C phase) and measure 1, the passage of zero-sequence current, 2 passages wherein measuring each phase current are divided into again 1 to measure level passage and 1 protected level passage, be the on-pole switch measuring level and protected level respectively for CT configuration, for having the on-pole switch measuring level and protected level current transformer simultaneously, described controller has the mechanism that automatically switches---and before measurement level current transformer enters saturation region, controller reads data from Measurement channel, and after measurement level current transformer enters saturation region, automatically close Measurement channel then read data from protection channel, thus ensure the accuracy of measurement, also ensure Measurement channel circuit not damage by excessive electric current.

On-off signal output module and core cpu model calling, its input end is used for internal switch amount and the external switch amount of Read Controller, and aforementioned inner switching value and external switch amount are sent into core cpu module, wherein, internal switch amount comprises button operation, the break-make etc. of pilot lamp, external switch amount comprises the break-make of the switching winding of Switch main body operating mechanism, the break-make of closing coil, energy storage motor switch etc., the input and output of external switch amount all carry out electrical isolation by optocoupler, IGBT is adopted to carry out controlling the amplification of power to the output of outside switching value, thus realize the control of inner weak electric signal to outside forceful electric power loop break-make.

Man-machine interface comprise respectively with the button of core cpu model calling, pilot lamp and liquid crystal display, wherein, liquid crystal display adopts 3 cun of graphic lcds as main display interface, realizes the display of the information such as equipment state, sampled data, optimum configurations, mode of operation; Pilot lamp in order to direct reactive switches body on/off switch state, energy storage state, controller mode of operation, whether there is the information such as fault; Button comprises on/off switch operating key, directionkeys, confirmation and return key, arranges key, directly operates controller in order to operating personnel.

In the present embodiment, described communication module comprises the circuit module that 4 realize communication function, the communication of five kinds of modes can be realized, RS232 module (serial communication), ethernet module (TCP-IP communication), SIM card module (gsm communication communicates with GPRS) and 100BaseFX module (optical fiber communication) respectively, be connected to core cpu module, the independence that can control each communication module under the control of core cpu module is opened or is closed.

Described power module and core cpu model calling are core cpu module for power supply, and by core cpu module, for analog input channel, On-off signal output module, man-machine interface and the communication module be attached thereto provides working power.

In sum, a kind of universal mast switch controller of the utility model, by adopting Embedded uniform hardware framework, adopt reusable multiple voltage sample passage, current sample passage is divided into Measurement channel and protection channel, thus realize can automatically switching when measuring electric current and being excessive, and design multiple communication function circuit, the controller obtained can meet different Switch main body (comprising isolating switch and the on-load switch) requirements to controller hardware, different controlling functions (relay protections can be met, reclosing, power distribution automation) requirement to controller hardware, also different application conditions (different CT configuration conditions can be met, different configuration of PT conditions) requirement to controller hardware, there is higher versatility.

Above embodiment is only and technological thought of the present utility model is described; protection domain of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technical scheme basis is done, all falls within the utility model protection domain.

Claims (4)

1. a universal mast switch controller, it is characterized in that: comprise core cpu module and the analog input channel be attached thereto respectively, On-off signal output module, man-machine interface, communication module and power module, wherein, the input end of analog input channel gathers the curtage information of on-pole switch, and sends into core cpu module; The internal switch amount of described On-off signal output module Read Controller and external switch amount also send into core cpu module; Described power module is core cpu module for power supply, and by core cpu module for other assembly provides working power.

2. a kind of universal mast switch controller as claimed in claim 1, it is characterized in that: the on-pole switch that described controller is applied is equiped with the combination of voltage transformer (VT), phase current mutual inductor and zero sequence current mutual inductor, 4 voltage sample passages are comprised in described analog input channel, each voltage sample passage all can independently be opened or close, and is connected with the Secondary Winding of 1 voltage transformer (VT) when opening; Described analog input channel also comprises 7 current sample passages; wherein 3 is protected level current sample passage; 3 is measure level current sample passage; 1 is zero-sequence current sampling channel; each current sample passage all can independently be opened or close; and when opening; the protected level Secondary Winding of protected level current sample passage and phase current mutual inductor connects one to one; the measurement level Secondary Winding measuring level current sample passage and phase current mutual inductor connects one to one, and zero-sequence current sampling channel is corresponding with the Secondary Winding of zero sequence current mutual inductor to be connected.

3. a kind of universal mast switch controller as claimed in claim 1, it is characterized in that: described man-machine interface comprise respectively with the button of core cpu model calling, pilot lamp and liquid crystal display, wherein, liquid crystal display and pilot lamp show under the control of core cpu module, and button directly operates controller with for operating personnel.

4. a kind of universal mast switch controller as claimed in claim 1, is characterized in that: described communication module comprise respectively with the RS232 module of core cpu model calling, ethernet module, SIM card module and 100BaseFX module.