CN204613249U - Portable reaying protection test platform - Google Patents
Portable reaying protection test platform Download PDFInfo
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- CN204613249U CN204613249U CN201420835486.6U CN201420835486U CN204613249U CN 204613249 U CN204613249 U CN 204613249U CN 201420835486 U CN201420835486 U CN 201420835486U CN 204613249 U CN204613249 U CN 204613249U
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Abstract
Portable reaying protection test platform, it comprises the test-bed body being configured with swing roller bottom, described test-bed body is respectively arranged with: AC power accesses, the ac working power supply socket of at least two rated voltage 220V, rated current 5A, at least one output voltage 0-220V, the AC-testing supply jack of output current 0-5A, at least one voltage Drazin inverse scope is the DC test supply hub of 0-260V, the DC current experiment power supply jack of at least one DC current Drazin inverse scope 0-5A; Wherein said AC power access point three tunnels and respectively in be connected to: a road is connected to AC-testing supply jack after the pressure regulator established in joint test stage body, the high frequency switching rectifier module established in testing table is connected to, by being connected to DC test supply hub and DC current experiment power supply jack after rectification in two tunnels; The ac working power supply socket of three tunnel supply band electric leakage protectors.
Description
Technical field
The utility model relates to a kind of portable reaying protection test platform, belong to electric relay protection calibration equipment.
Background technology
In electric system, in the periodic maintenance work of the secondary devices such as relay protection, electric meter, automatic safety device, need to carry out field-checking work; Therefore a kind of reaying protection test platform that can be on-the-spot work and provide convenience is badly in need of.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art existence; and provide a kind of safe and reliable, structure is simple, easy and simple to handle, with low cost, diverse in function, can meet the portable reaying protection test platform of secondary equipment in power system site test need of work.
The purpose of this utility model has been come by following technical solution, the portable reaying protection test platform of described one, it comprises the test-bed body being configured with swing roller bottom, described test-bed body is respectively arranged with: AC power accesses, at least two rated voltage 220V, the ac working power supply socket of rated current 5A, at least one output voltage 0-220V, the AC-testing supply jack of output current electric current 0-5A, at least one voltage Drazin inverse scope is the DC test supply hub of 0-260V, the DC current experiment power supply jack of at least one DC current Drazin inverse scope 0-5A,
Wherein said AC power access point three tunnels and respectively in be connected to: a road is connected to AC-testing supply jack after the pressure regulator established in joint test stage body, the high frequency switching rectifier module established in testing table is connected to, by being connected to DC test supply hub and DC current experiment power supply jack after rectification in two tunnels; The ac working power supply socket of three tunnel supply band electric leakage protectors.
The utility model is preferably: the table top surrounding of described test-bed body is furnished with anti-slip bar, the handle being convenient to lift by crane and carry is equipped with in table top both sides, under table top, left side is furnished with the drawer that can be placed test Work tool, be provided with worktable input power lead-in wire on the left of testing table to access as AC power, the long 20m of this power supply lead wire, configuration automatic line receiver; Described DC test supply hub and DC current experiment power supply jack and ac working power supply socket are configured with the protective cover for preventing from touching electricity by mistake respectively.
The utility model is preferably: described high frequency switching rectifier module adopts hot-swappable edge resonant type soft-switch technology, it converts primarily of immunity module, full-bridge rectification and power frequency filtering, DC/DC, smothing filtering forms, wherein full-bridge rectification and power frequency filtering are more level and smooth direct current by direct for grid alternating current source rectification, converts for next stage; Described DC/DC conversion be by rectification after direct current become high-frequency alternating current; Described high-frequency alternating current is reliable and stable direct supply after smothing filtering.
Described high frequency switching rectifier module is connected to over-voltage and over-current and short-circuit protection, overheat protector, fan control respectively by energy supply control module; Wherein said over-voltage and over-current and short-circuit protection are that module is automatically locked after there is overvoltage, and corresponding module malfunction indicator lamp is bright, and malfunctioning module is automatically deactivated and do not affected whole system and normally runs; Described fan control is provided with two grades of starting fan functions, when output current is excessive or when inside modules temperature is higher than 60 DEG C, module can start fan.
Described output current is returned by sampling feedback and is connected to energy supply control module and controls accordingly; Described energy supply control module controls the normal work of high-frequency rectification module, makes corresponding control to when there are abnormal conditions.
The utility model have safe and reliable, structure is simple, easy and simple to handle, with low cost, diverse in function; volume is little, lightweight, conveniently moving; mobility strong; reliable AC and DC experiment power supply, relay protection 80% test switch transmission power supply and working power can be provided, the features such as secondary equipment in power system site test need of work can be met.
Accompanying drawing explanation
Fig. 1 is test-bed body structural representation described in the utility model.
Fig. 2 is schematic block circuit diagram described in the utility model.
Fig. 3 is high frequency switching rectifier module theory diagram described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: shown in Fig. 1, the portable reaying protection test platform of one described in the utility model, it comprises the test-bed body 2 being configured with swing roller 1 bottom, described test-bed body 2 is respectively arranged with: AC power accesses, at least two rated voltage 220V, the ac working power supply socket 3 of rated current 5A, at least one output voltage 0-220V, the AC-testing supply jack 4 of output current electric current 0-5A, at least one voltage Drazin inverse scope is the DC test supply hub 5 of 0-260V, the DC current experiment power supply jack 6 of at least one DC current Drazin inverse scope 0-5A,
Shown in Fig. 2, wherein said AC power access point three tunnels and respectively in be connected to: a road is connected to AC-testing supply jack 4 after the pressure regulator 7 established in joint test stage body 2, the high frequency switching rectifier module 8 established in testing table is connected to, by being connected to DC test supply hub 5 and DC current experiment power supply jack 6 after rectification in two tunnels; The ac working power supply socket 3 of three tunnel supply band electric leakage protectors 9.
Shown in Fig. 1, the table top surrounding of described test-bed body 2 is furnished with anti-slip bar 10, the handle 11 being convenient to lift by crane and carry is equipped with in table top both sides, under table top, left side is furnished with the drawer 12 that can be placed test Work tool, be provided with worktable input power lead-in wire 13 on the left of testing table to access as AC power, the long 20m of this power supply lead wire 13, configuration automatic line receiver 14; Described DC test supply hub 5 and DC current experiment power supply jack 6 and ac working power supply socket 3 are configured with the protective cover for preventing from touching electricity by mistake respectively.
Shown in Fig. 3, described high frequency switching rectifier module 8 adopts hot-swappable edge resonant type soft-switch technology, it converts 17 primarily of immunity module 15, full-bridge rectification and power frequency filtering 16, DC/DC, smothing filtering 18 forms, wherein full-bridge rectification and power frequency filtering 16 are more level and smooth direct current by direct for grid alternating current source rectification, converts for next stage; Described DC/DC conversion 17 be by rectification after direct current become high-frequency alternating current; Described high-frequency alternating current is reliable and stable direct supply after smothing filtering 18.
Shown in Fig. 3, described high frequency switching rectifier module 8 is connected to over-voltage and over-current and short-circuit protection 20, overheat protector 21, fan control 22 respectively by energy supply control module 19; Wherein said over-voltage and over-current and short-circuit protection 20 are that module is automatically locked after there is overvoltage, and corresponding module malfunction indicator lamp is bright, and malfunctioning module is automatically deactivated and do not affected whole system and normally runs; Described fan control 22 is provided with two grades of starting fan functions, when output current is excessive or when inside modules temperature is higher than 60 DEG C, module can start fan.
Described output current is returned by sampling feedback 23 and is connected to energy supply control module 19 and controls accordingly; Described energy supply control module 19 controls the normal work of high-frequency rectification module, makes corresponding control to when there are abnormal conditions.
Embodiment: shown in Fig. 1, testing table adopts 301 type stainless steel materials to make, long 800mm, wide 500mm, high 700mm.Bottom is furnished with can 360 ° of swing rollers, and have clamping device.Testing table table top surrounding is furnished with anti-slip bar, and handle is equipped with in table top both sides, is convenient to lifting and carrying.Under table top, left side is furnished with a drawer, can place test Work tool.Worktable input power lead-in wire is provided with, the long 20m of this power supply lead wire, configuration automatic line receiver, convenient operation on the left of testing table.
Be provided with 5 ac working power supply sockets on the left of testing table, rated voltage 220V, rated current 5A, and be furnished with protective cover, prevent from touching electricity by mistake.
AC-testing supply, adopts jack mode, output voltage 0-220V, output current electric current 0-5A, and is furnished with protective cover, prevent from touching electricity by mistake.
DC experiment power supply voltage Drazin inverse scope 0-260V, this output also can be used as relay protection 80% switch transmission power supply; DC current Drazin inverse scope 0-5A.And be furnished with protective cover, prevent from touching electricity by mistake.
Figure 2 shows that the utility model circuit overall theory diagram used, AC power access Hou Fen tri-tunnel described in the utility model a: road is exportable alternating voltage 0-220V after pressure regulator, alternating current 0-5A; Two road supply high frequency switching rectifier modules, by voltage 0-280V can be obtained after rectification, electric current 0-5A; The working power socket of three tunnel supply band electric leakage protectors.
Figure 3 shows that the utility model high frequency switching rectifier module theory diagram used, this high frequency switching rectifier module adopts edge resonant type soft-switch technology, hot-pluggable; Composition wherein comprises:
1, immunity module: its effect is that the clutter existed by electrical network filters, and the clutter simultaneously also hindering the machine to produce feeds back to other equipment.
2, full-bridge rectification and power frequency filtering: be more level and smooth direct current by direct for grid alternating current source rectification, converts for next stage.
3, DC/DC conversion: the direct current after rectification is become high-frequency alternating current, and this is the core of high frequency switching rectifier module, and frequency is higher, and volume, weight are less with the ratio of output power.On the one hand from output terminal sampling feedback, through comparing with established standards, then remove control inverter; change its frequency or pulsewidth, reach stable output, on the other hand; according to the data that test circuit provides, differentiate through protection circuit, provide control circuit to carry out various safeguard measure to complete machine.
4, smothing filtering: after filtering, is reliable and stable direct supply.
5, over-voltage and over-current and short-circuit protection: occur for stopping too high and this type of situation of short circuit of output voltage, overvoltage and short-circuit protection circuit is provided with in the utility model high-frequency model, after there is overvoltage, module is automatically locked, corresponding module malfunction indicator lamp is bright, and malfunctioning module is automatically deactivated and do not affected whole system and normally runs; During output short-circuit, module is pulled down to output voltage almost nil in moment, and limiting short-circuit current is under current-limiting points, and now module output power is very little, to reach the object of protection module.
6, fan control: be provided with two grades of starting fan functions, when output current is excessive or when inside modules temperature is higher than 60 DEG C, module can start fan.
7, overheat protector: overheat protector mainly protects power device; under normal operation, system leaves enough surpluses, under some particular surroundingss; in the situations such as too high in environment temperature, blower fan stall, automatic shutdown protection when module detects radiator temperature more than 85 DEG C.
8, sampling feedback: be output direct current is returned to control loop control accordingly.
9, Energy control: be that the normal work of high-frequency rectification module is controlled, make corresponding control to when there are abnormal conditions.Following table 1 is rectification module technical indicator:
Table 1
Claims (5)
1. portable reaying protection test platform, it comprises the test-bed body being configured with swing roller bottom, it is characterized in that described test-bed body is respectively arranged with: AC power accesses, the ac working power supply socket of at least two rated voltage 220V, rated current 5A, at least one output voltage 0-220V, the AC-testing supply jack of output current electric current 0-5A, at least one voltage Drazin inverse scope is the DC test supply hub of 0-260V, the DC current experiment power supply jack of at least one DC current Drazin inverse scope 0-5A;
Wherein said AC power access point three tunnels and respectively in be connected to: a road is connected to AC-testing supply jack after the pressure regulator established in joint test stage body, the high frequency switching rectifier module established in testing table is connected to, by being connected to DC test supply hub and DC current experiment power supply jack after rectification in two tunnels; The ac working power supply socket of three tunnel supply band electric leakage protectors.
2. portable reaying protection test platform according to claim 1, it is characterized in that the table top surrounding of described test-bed body is furnished with anti-slip bar, the handle being convenient to lift by crane and carry is equipped with in table top both sides, under table top, left side is furnished with the drawer that can be placed test Work tool, be provided with worktable input power lead-in wire on the left of testing table to access as AC power, the long 20m of this power supply lead wire, configuration automatic line receiver; Described DC test supply hub and DC current experiment power supply jack and ac working power supply socket are configured with the protective cover for preventing from touching electricity by mistake respectively.
3. portable reaying protection test platform according to claim 1, it is characterized in that described high frequency switching rectifier module adopts hot-swappable edge resonant type soft-switch technology, it converts primarily of immunity module, full-bridge rectification and power frequency filtering, DC/DC, smothing filtering forms, wherein full-bridge rectification and power frequency filtering are more level and smooth direct current by direct for grid alternating current source rectification, converts for next stage; Described DC/DC conversion be by rectification after direct current become high-frequency alternating current; Described high-frequency alternating current is reliable and stable direct supply after smothing filtering.
4. portable reaying protection test platform according to claim 3, is characterized in that described high frequency switching rectifier module is connected to over-voltage and over-current and short-circuit protection, overheat protector, fan control respectively by energy supply control module; Wherein said over-voltage and over-current and short-circuit protection are that module is automatically locked after there is overvoltage, and corresponding module malfunction indicator lamp is bright, and malfunctioning module is automatically deactivated and do not affected whole system and normally runs; Described fan control is provided with two grades of starting fan functions, when output current is excessive or when inside modules temperature is higher than 60 DEG C, module can start fan.
5. portable reaying protection test platform according to claim 4, is characterized in that described output current is returned by sampling feedback and is connected to energy supply control module and controls accordingly; Described energy supply control module controls the normal work of high-frequency rectification module, makes corresponding control to when there are abnormal conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835486.6U CN204613249U (en) | 2014-12-24 | 2014-12-24 | Portable reaying protection test platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420835486.6U CN204613249U (en) | 2014-12-24 | 2014-12-24 | Portable reaying protection test platform |
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| CN204613249U true CN204613249U (en) | 2015-09-02 |
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| CN201420835486.6U Active CN204613249U (en) | 2014-12-24 | 2014-12-24 | Portable reaying protection test platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597295A (en) * | 2014-12-24 | 2015-05-06 | 浙江瓯发发电工程有限公司 | Movable relay protecting test bench |
| CN109690719A (en) * | 2016-09-19 | 2019-04-26 | 伊顿智能动力有限公司 | Advanced cooling system for electrical equipment |
-
2014
- 2014-12-24 CN CN201420835486.6U patent/CN204613249U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597295A (en) * | 2014-12-24 | 2015-05-06 | 浙江瓯发发电工程有限公司 | Movable relay protecting test bench |
| CN109690719A (en) * | 2016-09-19 | 2019-04-26 | 伊顿智能动力有限公司 | Advanced cooling system for electrical equipment |
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