CN106646084A - Distributed interface device of relay protection debugging instrument - Google Patents
Distributed interface device of relay protection debugging instrument Download PDFInfo
- Publication number
- CN106646084A CN106646084A CN201611233076.4A CN201611233076A CN106646084A CN 106646084 A CN106646084 A CN 106646084A CN 201611233076 A CN201611233076 A CN 201611233076A CN 106646084 A CN106646084 A CN 106646084A
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- output
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- processor
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The present invention discloses a distributed interface device of a relay protection debugging instrument. The technical problem is solved that the current intelligent transformer cannot complete the debugging work at one time. The distributed interface device comprises: an output module consisting of a processor, a power module, a D/A conversion module, an operational amplifier and an alternating current-direct current conversion circuit, wherein the power module supplies power to the processor, the output end of the processor is connected with the input end of the D/A conversion module, the output end of the D/A conversion module is connected with the input end of the operational amplifier, the output end of the operational amplifier and the input end of the alternating current-direct current conversion circuit; a display device which is a digital ampere-voltage meter and is configured to communicate with the serial port of the processor; an interface box having a plurality of interfaces configured to connect a relay protection debugging instrument, wherein each pair of interfaces comprises a current output interface and a voltage output interface; and a debugging wire comprising a plurality of connection wires, wherein one end of each connection wire is connected with the output of the alternating current-direct current conversion circuit, and the other end thereof is correspondingly connected with a pair of interfaces.
Description
Technical field
The present invention relates to a kind of Commissioning of Relay Protection instrument distributed interface device.
Background technology
Intelligent substation protective debugging scene Jing often reflects, under the premise of debugging wiring and numerical computations are correct, intelligence
Transforming plant protecting debugging often cannot once success.
Using " centralized " arrangement, so-called " centralized " arrangement refers to mutual by electric current conventional substation protection supervisory equipment
Sensor (CT), voltage transformer (PT) collection AC current-voltage analog quantity and by breaker, disconnecting switch export open
Guan Liang etc. is used as transmission medium by cable, on the protection supervisory equipment backboard being input into relay protection room.And intelligent substation
Using " distributed " arrangement, so-called " distributed " arrangement is referred to by current transformer (CT), mutual induction of voltage protection supervisory equipment
The AC current-voltage analog quantity of device (PT) collection is input into first in the combining unit (MU) by interval site arrangement, then by closing
And after unit is digitized, with message as pattern, using optical cable as transmission medium, the protection backboard being input into relay protection room
On；The switching value gathered by breaker, disconnecting switch is input into first on the intelligent terminal (RIPT) by interval site arrangement, then
After being digitized by intelligent terminal, with message as pattern, with optical cable as medium, on the protection backboard being input into relay protection room.
In the debugging efforts of conventional substation, field adjustable personnel directly can be passed through Current Voltage in protection screen terminal block
Carry out protective debugging and transmission test, commissioning staff towards be only a protection device, so only need to be in relay protection room with regard to energy
Complete debugging efforts.And the framework of intelligent substation becomes " distributed " by " centralized ", therefore, existing conventional substation
The debud mode for being adopted cannot meet the debugging efforts of intelligent substation.By taking route protection debugging as an example, when commissioning staff uses
One debugging instrument before certain line segregation intelligent cabinet when electric current dosage is carried out, it is impossible to while outside several meters even tens of rice
Mother sets interval and carries out voltage dosage.
Existing intelligent substation debugging mode adopts two debugging instruments dosage pattern simultaneously, i.e., in circuit intelligent cabinet and mother
If respectively putting a debugging instrument before intelligent cabinet, two groups of commissioning staffs carry out dosage, using the pattern manually propagandaed directed to communicate in debugging process
Synchronize dosage, Jing practice examinings cannot ensure the synchronism debugged by propagandaing directed to communicate, ask so as to causing debugging success rate not being high
Topic.Existing debugging plan also has using the debugging line that the debugging instrument before line segregation intelligent cabinet is equipped with to be pulled to mother and sets interval,
So arranging a debugging instrument can complete debugging, and although the method solves the problems, such as to debug synchronism, but commissioning staff couple
The debugging of line segregation intelligent cabinet remains a need for carrying out several times, it is impossible to accomplish once to complete debugging efforts.
The content of the invention
The invention provides a kind of Commissioning of Relay Protection instrument distributed interface device, solves the tune of current intelligent substation
Trial work is made cannot one step completed technical problem.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：Commissioning of Relay Protection instrument distributed interface is filled
Put, including：
Output module, including processor, power module, D/A modular converters, operational amplifier and ac-dc converter circuit,
The processor is powered by power module, and the output end of the processor is connected to locate with the input of D/A modular converters
The numerical variable of reason device output is converted to direct current voltage analog quantity, the output end and operation amplifier of the D/A modular converters
The input of device so that direct current voltage analog quantity to be amplified, the output end of the operational amplifier and ac-dc converter circuit
Input connects for the direct current voltage analog quantity after amplification to be converted to AC current-voltage analog quantity；
Display device, the display device is digital current voltmeter, and it is communicated with processor serial port, hands over straight for showing
The AC current-voltage analog quantity of circuit output is changed in circulation；
Interface box, with the multipair interface for connecting Commissioning of Relay Protection instrument, includes that an electric current is defeated per docking port
Outgoing interface and a voltage output interface；
Debugging line, including multiply connecting line, one end of every connecting line is all connected with the output end of ac-dc converter circuit, another
One end correspondence one docking port of connection.
Further, the distributed interface device also includes main body drum and support, and the main body drum rotates connection
On support, the debugging line is set around on main body drum, and the main body drum is provided with installation output module and display device
Mounting box.
Further, the distributed interface device also include security alarm device, the security alarm device include with
Voltage output interface open circuit warning circuit in parallel and the short-circuit alarming circuit connected with current output interface, the open circuit report
Indicator lamp and/or buzzer are equipped with alert circuit and short-circuit alarming circuit.
Beneficial effects of the present invention are：
1. the output module of the present invention is exported in the electric current on alternating current analog output to interface box by debugging line
On interface, by the voltage output interface on alternating voltage analog output to interface box, the debugging before line segregation intelligent cabinet
Instrument may be coupled to the current output interface on interface box and voltage output interface, it is thereby achieved that all debugging instruments are simultaneously
The current value and magnitude of voltage of the operation of dosage, the output automatic synchronization of of ac, and dosage operation can pass through display device
Display comparison is carried out, the debugging efforts for being so achieved that intelligent substation are disposably completed, and improve debugging efficiency and success
Rate；
2. line is debugged around being located on main body line disk, folding and unfolding can be carried out to debugging line according to physical length, effectively reduce tune
Examination line trips the situation of commissioning staff to be occurred, and output module and display device are arranged on the mounting box of main body drum, therefore, adjust
Examination personnel can complete disposable debugging efforts at distributed interface device；
3. by arranging security alarm device so that distributed interface device has debug circuit open circuit with short circuit alarm
Function, and alarm function reminded by indicator lamp and buzzer, is easy to commissioning staff to be suspended in the most short time
Debugging and the operation of inspection circuit.
Description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described further：
Fig. 1 is the structural representation of Commissioning of Relay Protection instrument distributed interface device of the present invention；
Fig. 2 is the structural representation of main body drum in the present invention；
Fig. 3 is the structural representation of medium-height trestle of the present invention.
Specific embodiment
The specific embodiment of the present invention is elaborated below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, Commissioning of Relay Protection instrument distributed interface device, including main body drum 1 and support 2, main body
Drum 1 is wire spool, and support 2 is provided with rotating roller 21, and main body drum 1 is enclosed within rotating roller 21 and is propped up so as to realize being rotatably connected on
On frame 2, the side of main body drum 1 is provided with mounting box 11.
Distributed interface device also includes：
Output module, including processor, power module, D/A modular converters, operational amplifier and ac-dc converter circuit,
The processor is powered by power module, and the output end of the processor is connected to locate with the input of D/A modular converters
The numerical variable of reason device output is converted to direct current voltage analog quantity, the output end and operation amplifier of the D/A modular converters
The input of device so that direct current voltage analog quantity to be amplified, the output end of the operational amplifier and ac-dc converter circuit
Input connects for the direct current voltage analog quantity after amplification to be converted to AC current-voltage analog quantity；
Display device 3, it is digital current voltmeter, and it is communicated with processor serial port, for showing AC-DC conversion electricity
The AC current-voltage analog quantity of road output；
Interface box 4, with the multipair interface 41 for connecting Commissioning of Relay Protection instrument, an electricity is included per docking port 41
A stream output interface 41a and voltage output interface 41b；
Debugging line 5, including multiply connecting line, one end of every connecting line be all connected with the output end of ac-dc converter circuit,
Other end correspondence one docking port 41 of connection.
The debugging process of Commissioning of Relay Protection instrument distributed interface device is：Commissioning staff is first by line segregation intelligent cabinet
Front debugging instrument is all connected on the current output interface 41a on interface box 4 and voltage output interface 41b, then starts debugging,
Adjustment method is to export numerical variable to D/A modular converters by processor, and numerical variable is converted to direct current by D/A modular converters
Current Voltage analog quantity is simultaneously exported to operational amplifier, and best friend is amplified and exported to direct current voltage analog quantity by operational amplifier
DC converting circuit, final ac-dc converter circuit transmits the direct current voltage analog quantity after amplification to interface box 4
On current output interface 41a and voltage output interface 41b, that is to say, that the exportable alternating current simulations of current output interface 41a
Measure to the debugging instrument before every line segregation intelligent cabinet, the exportable alternating voltage analog quantitys of voltage output interface 41b give every line
Whether the debugging instrument before the intelligent cabinet of road interval, debugging is consistent with the reading of magnitude of voltage by the observation current value of display device 3 again, from
And realize that the debugging instrument before all line segregation intelligent cabinets once can just complete debugging efforts, thus, greatly improving debugging
Operating efficiency.
Wherein, debug line 5 to be set around on main body drum 1, and output module and display device 4 are then installed in mounting box 11
In, display device 4 has display screen and the display screen stretches out and observed for commissioning staff outside mounting box 11.
In the present embodiment, distributed interface device also includes security alarm device 6, and security alarm device 6 includes and electricity
Pressure output interface open circuit warning circuit in parallel and the short-circuit alarming circuit connected with current output interface, warning circuit of opening a way
With indicator lamp and/or buzzer are equipped with short-circuit alarming circuit, security alarm device 6 is also arranged in mounting box 11, peace
Mounted box 11 is provided with window, and the window supplies commissioning staff's viewing lamp.
Preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This
Bright to be not only limited to above example, its concrete structure allows to change, and those skilled in the art can make according to the present invention
Various changes and deformation, without departing from the spirit of the present invention, belong to scope defined in claims of the present invention.
Claims (3)
1. Commissioning of Relay Protection instrument distributed interface device, it is characterised in that include：
Output module, including processor, power module, D/A modular converters, operational amplifier and ac-dc converter circuit, it is described
Processor is powered by power module, and the output end of the processor is connected with by processor with the input of D/A modular converters
The numerical variable of output is converted to direct current voltage analog quantity, output end and the operational amplifier of the D/A modular converters
Input so that direct current voltage analog quantity to be amplified, the output end of the operational amplifier and the input of ac-dc converter circuit
End connects for the direct current voltage analog quantity after amplification to be converted to AC current-voltage analog quantity；
Display device, the display device is digital current voltmeter, and it is communicated with processor serial port, for showing that alternating current-direct current turns
Change the AC current-voltage analog quantity of circuit output；
Interface box, with the multipair interface for connecting Commissioning of Relay Protection instrument, includes that an electric current output connects per docking port
Mouth and a voltage output interface；
Debugging line, including multiply connecting line, one end of every connecting line is all connected with the output end of ac-dc converter circuit, the other end
Correspondence one docking port of connection.
2. Commissioning of Relay Protection instrument distributed interface device according to claim 1, it is characterised in that described distributed to connect
Mouth device also includes main body drum and support, and the main body drum is rotatably connected on support, and the debugging line is set around main body
On drum, the main body drum is provided with the mounting box for installing output module and display device.
3. Commissioning of Relay Protection instrument distributed interface device according to claim 1, it is characterised in that described distributed to connect
Mouth device also includes security alarm device, and the security alarm device includes the open circuit warning circuit in parallel with voltage output interface
And the short-circuit alarming circuit connected with current output interface, it is equipped with finger in the open circuit warning circuit and short-circuit alarming circuit
Show lamp and/or buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233076.4A CN106646084A (en) | 2016-12-28 | 2016-12-28 | Distributed interface device of relay protection debugging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233076.4A CN106646084A (en) | 2016-12-28 | 2016-12-28 | Distributed interface device of relay protection debugging instrument |
Publications (1)
| Publication Number | Publication Date |
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| CN106646084A true CN106646084A (en) | 2017-05-10 |
Family
ID=58832445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611233076.4A Pending CN106646084A (en) | 2016-12-28 | 2016-12-28 | Distributed interface device of relay protection debugging instrument |
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