CN204129185U - AC load - Google Patents
AC load Download PDFInfo
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- CN204129185U CN204129185U CN201420594419.XU CN201420594419U CN204129185U CN 204129185 U CN204129185 U CN 204129185U CN 201420594419 U CN201420594419 U CN 201420594419U CN 204129185 U CN204129185 U CN 204129185U
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Abstract
AC load disclosed in the utility model, comprise the industrial computer, PLC and the dry type load box that are connected successively, industrial computer is also connected with generator dedicated tester, the two ends of generator dedicated tester are connected to testing generator group and dry type load box, PLC is also connected with manual operation control panel, manual operation control panel is connected with working power contact-making switch, working power contact-making switch accesses civil power by connection terminal, and working power contact-making switch is also connected with dry type load box with Phase sequence detection unit successively.AC load of the present utility model is simple to operate, volume is little is convenient to transport, can monitor the change of genset load ability in time.AC load of the present utility model is compared with resistance card load case with traditional Water l oad, leakproof, does not produce harmful gas and waste water, and load testing precision is high, regulate the time being more prone to, preparing without the need to test, and can use for a long time continuously.
Description
Technical field
The utility model belongs to testing apparatus technical field, is specifically related to a kind of AC load.
Background technology
In order to really for protecting network data center, data switching center provides uninterrupted power source to power, and the normal reliable such as drilling machine platform, boats and ships is run, the generating set such as diesel oil, gas-liquid-liquid three-phase flow is for it provides the guarantee for subsequent use of power, when mains-supplied is interrupted, which ensure that the continuity of power supply, ensure that the security of electric power system, genset plays important guaranteeing role.
At present because the importance that people install examination to diesel generator set, daily servicing detects is cognitive not enough, and generally lack testing tool, thus result in the serious loss of genset periodic maintenance testing, and a lot of user does not almost carry out necessary Efficient Evaluation to the genset real output and maximum belt loading capability of installing outfit, daily servicing and regularly loading testing require substantially do not have condition to implement.And the existing AC load for testing genset load generally adopts " true load " and " zero load " these two kinds of method of testings, can have influence on normal production and the economic benefit of enterprise with " true load " test, " zero load " test then cannot meet the change of the actual load capacity of inspection generator.
Utility model content
The purpose of this utility model is to provide a kind of AC load, and it is simple to operate, volume is little is convenient to transport, can monitor the change of genset load ability in time.
The technical scheme that the utility model adopts is: AC load, comprise the industrial computer, PLC and the dry type load box that are connected successively, industrial computer is also connected with generator dedicated tester, the two ends of generator dedicated tester are connected to testing generator group and dry type load box, PLC is also connected with manual operation control panel, manual operation control panel is connected with working power contact-making switch, working power contact-making switch accesses civil power by connection terminal, and working power contact-making switch is also connected with dry type load box with Phase sequence detection unit successively.
Feature of the present utility model is also,
The top of dry type load box is provided with many groups resistance test circuit in parallel, and resistance test circuit is connected with testing generator group by generator dedicated tester, and resistance test circuit comprises the resistance alloys, contactor and the test fuse that are connected successively; The bottom of dry type load box is provided with the cooling fan array of cooling fan composition, and cooling fan array is connected with Phase sequence detection unit.
Also hot protective relay is provided with between each cooling fan and Phase sequence detection unit.
Generator dedicated tester comprises built-in voltage transformer (VT) and external current transformer.
PLC is also connected with temperature triggered switch.
Be connected with between working power contact-making switch and connection terminal for electric fuse.
Generator dedicated tester is connected by copper busbar with between genset.
The model of PLC is S7-200 series.
The beneficial effects of the utility model are: AC load of the present utility model is simple to operate, volume is little is convenient to transport, can monitor the change of genset load ability in time.AC load of the present utility model is compared with resistance card load case with traditional Water l oad, leakproof, does not produce harmful gas and waste water, and load testing precision is high, regulate the time being more prone to, preparing without the need to test, and can use for a long time continuously.
Accompanying drawing explanation
Fig. 1 is the structural representation of AC load of the present utility model.
In figure, 1. industrial computer, 2.PLC, 3. generator dedicated tester; 4. dry type load box, 5. temperature triggered switch, 6. manual operation control panel; 7. working power contact-making switch, 8. Phase sequence detection unit, 9. for electric fuse; 10. connection terminal, 11. testing generator groups, 12. civil powers; 13. copper busbars, 41. resistance alloys, 42. contactors; 43. test fuses, 44. cooling fans, 45. hot protective relays.
Embodiment
Below in conjunction with embodiment, the utility model is described in detail.
The structure of the AC load that the utility model provides as shown in Figure 1, comprise the industrial computer 1 be connected successively, PLC2 and dry type load box 4, industrial computer 1 is also connected with generator dedicated tester 3, the two ends of generator dedicated tester 3 are connected to testing generator group 11 and dry type load box 4, PLC2 is also connected with manual operation control panel 6, manual operation control panel 6 is connected with working power contact-making switch 7, working power contact-making switch 7 accesses civil power 12 by connection terminal 10, working power contact-making switch 7 is also connected with dry type load box 4 with Phase sequence detection unit 8 successively.
The top of dry type load box 4 is provided with many groups resistance test circuit in parallel, resistance test circuit is connected with testing generator group 11 by generator dedicated tester 3, and resistance test circuit comprises the resistance alloys 41, contactor 42 and the test fuse 43 that are connected successively; The bottom of dry type load box 4 is provided with the cooling fan array of cooling fan 44 composition, and described cooling fan array is connected with Phase sequence detection unit 8.
Hot protective relay 45 is also provided with between each cooling fan 44 and Phase sequence detection unit 8.
Generator dedicated tester 3 comprises built-in voltage transformer (VT) 31 and external current transformer 32.
PLC2 is also connected with temperature triggered switch 5.
Be connected with between working power contact-making switch 7 and connection terminal 10 for electric fuse 9.
Be connected by copper busbar 13 between generator dedicated tester 3 with genset 11.
The model of PLC2 is S7-200 series.
Rated power and the load time of tested genset only need be inputted on computers when AC load of the present utility model is tested by the automatic control load of computer software, system will complete from 0% automatically, 25%, 50%, 75%, 100%, 110%, 100%, 75%, 50%, 25%, the loading test of 0%, or by software according to presetting load general power 10%, 20%, 30%---110%, the test of 0%--50%--100%--0% sudden unloading process controls (load time can be arranged) flexibly, load and increase progressively step by step, easy and simple to handle, waveform is true, and in test process, record the V of genset, I, KW, the change that the parameters such as Hz occur in loading, release time and curve store and are shown in the mode of form and figure on industrial computer, and automatically complete the measurement of all electrical quantitys of genset.
AC load of the present utility model can carry out automatic operation or manually operation control panel 6 manual operation by PLC2, the resistance test circuit composition resistance test array that wherein many groups are in parallel, each phase is all made up of the independent execution unit of resistance alloys 41, contactor 42 and test fuse 43, ensure that insulation safety is protected, and control the switching in each loop by PLC; And the cooling fan array of dry type load box 4 bottom rotary work after Phase sequence detection unit 8 detection adjustment dispels the heat, hot protective relay 45 then ensures the normal work of cooling fan 44; Temperature triggered switch 5, for upper limit of detection temperature, controls each device and quits work when temperature reaches in limited time then PLC and to avoid fault.
AC load of the present utility model combines the stable precision switching that advanced industrial computer and PLC logic control contactor carry out genset load, precision and the reliability of test is ensured with this, it readjusts on performance, function, safety, mode of operation and cost, is specifically relative to the advantage of traditional AC load:
1, measuring accuracy is high: use arithmetic speed can reach the generator test unit of 100MPIS, the speed that is simultaneously equipped with is that the high-speed a/d of 200K is sampled, and three-phase is sampled simultaneously thus ensured sampling precision, possess available for different connection modes (3W3A,
) be convenient to sampling.
2, security: water load uses recirculated water, after water resistance energising, water temperature raises, and likely seethe with excitement, vaporize, high temperature causes significant damage to fuselage, operating personnel, poor stability; And the utility model adopts dry type load box to force wind to cool rapidly, heat radiation evenly, and have overheated automatic protection functions, complete machine, the person implement duplicate protection, consider more to put in place, high safety.
3, maintenance cost: water load needs replacing water resistance for every about 2 to three years, and maintenance cost is high; And dry type load box long service life, can normally use 10 years non-maintaining, maintenance cost is low.
4, control and management: water load resistance size is wayward, according to the adjustment of Devices to test amount of capacity, managing internal load resistance is very difficult, not easily realizes computer control managing; And dry type load box is furnished with RS485 communication interface, in conjunction with PC, the switch of remote control load device increases and decreases test capacity.
5, transport: in the excessive situation of water load capacity, resistor fluid rocks, transport difficult; And AC load of the present utility model outside container construction that adopts when measuring high power load, while convenient transport, sunshade, rainproof, anti-theft feature is more perfect.Adopt roller mode to be convenient to shift tester when measuring low-power load.
By the way, AC load of the present utility model is simple to operate, volume is little is convenient to transport, can monitor the change of genset load ability in time.AC load of the present utility model is compared with resistance card load case with traditional Water l oad, leakproof, does not produce harmful gas and waste water, and load testing precision is high, regulate the time being more prone to, preparing without the need to test, and can use for a long time continuously.
Claims (8)
1. AC load, it is characterized in that, comprise the industrial computer (1) be connected successively, PLC (2) and dry type load box (4), described industrial computer (1) is also connected with generator dedicated tester (3), the two ends of described generator dedicated tester (3) are connected to testing generator group (11) and dry type load box (4), described PLC (2) is also connected with manual operation control panel (6), described manual operation control panel (6) is connected with working power contact-making switch (7), working power contact-making switch (7) is by connection terminal (10) access civil power (12), working power contact-making switch (7) is also connected with dry type load box (4) with Phase sequence detection unit (8) successively.
2. AC load as claimed in claim 1, it is characterized in that, the top of described dry type load box (4) is provided with many groups resistance test circuit in parallel, described resistance test circuit is connected with testing generator group (11) by generator dedicated tester (3), and described resistance test circuit comprises resistance alloys (41) connected successively, contactor (42) and test fuse (43); The bottom of described dry type load box (4) is provided with the cooling fan array that cooling fan (44) forms, and described cooling fan array is connected with Phase sequence detection unit (8).
3. AC load as claimed in claim 2, is characterized in that, be also provided with hot protective relay (45) between described each cooling fan (44) and Phase sequence detection unit (8).
4. AC load as claimed in claim 1, it is characterized in that, described generator dedicated tester (3) comprises built-in voltage transformer (VT) (31) and external current transformer (32).
5. AC load as claimed in claim 1, it is characterized in that, described PLC (2) is also connected with temperature triggered switch (5).
6. AC load as claimed in claim 1, is characterized in that, is connected with for electric fuse (9) between described working power contact-making switch (7) and connection terminal (10).
7. the AC load as described in claim 1 or 4, is characterized in that, described generator dedicated tester (3) is connected by copper busbar (13) with between genset (11).
8. AC load as claimed in claim 1, is characterized in that, the model of described PLC (2) is S7-200 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594419.XU CN204129185U (en) | 2014-10-14 | 2014-10-14 | AC load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594419.XU CN204129185U (en) | 2014-10-14 | 2014-10-14 | AC load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204129185U true CN204129185U (en) | 2015-01-28 |
Family
ID=52385530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594419.XU Active CN204129185U (en) | 2014-10-14 | 2014-10-14 | AC load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204129185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319504A (en) * | 2015-11-11 | 2016-02-10 | 中国船舶重工集团公司第七〇三研究所无锡分部 | Tap position control method of dry type load device |
| CN110187155A (en) * | 2019-06-27 | 2019-08-30 | 中国船舶电站设备有限公司 | Formula load device is pressed dry in a kind of direct current |
-
2014
- 2014-10-14 CN CN201420594419.XU patent/CN204129185U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319504A (en) * | 2015-11-11 | 2016-02-10 | 中国船舶重工集团公司第七〇三研究所无锡分部 | Tap position control method of dry type load device |
| CN105319504B (en) * | 2015-11-11 | 2018-05-18 | 中国船舶重工集团公司第七〇三研究所无锡分部 | The gear control method of dry type load device |
| CN110187155A (en) * | 2019-06-27 | 2019-08-30 | 中国船舶电站设备有限公司 | Formula load device is pressed dry in a kind of direct current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160512 Address after: Qinling Mountains Avenue West Cottage accelerator science and technology enterprises in Shaanxi province Xi'an city high tech Zone 710304 No. 2 Building No. 9 room 30201 Patentee after: Shaanxi Criane Electronic Co., Ltd. Address before: 710304 Shaanxi city of Xi'an province science and technology industrial base of Qinling Mountains high tech Zone Cottage Road West, No. 2, building 11, 2 Science and technology enterprise accelerator unit room 2-3-2 Patentee before: Shaanxi Aitelong Technology Co., Ltd. |