CN201637827U - Intelligent alternating-current load cabinet for large-power marine generator unit - Google Patents
Intelligent alternating-current load cabinet for large-power marine generator unit Download PDFInfo
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- CN201637827U CN201637827U CN2009202543219U CN200920254321U CN201637827U CN 201637827 U CN201637827 U CN 201637827U CN 2009202543219 U CN2009202543219 U CN 2009202543219U CN 200920254321 U CN200920254321 U CN 200920254321U CN 201637827 U CN201637827 U CN 201637827U
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Abstract
The utility model relates to an intelligent alternating-current load cabinet for a large-power marine generator unit, which is structurally characterized in that the output terminal of a main control circuit is connected with the input terminals of a resistive load circuit and an inductive load circuit; two power supply terminals of the main control circuit are connected with the A1 phase, B1 phase, C1 phase and zero wire N1 of the power supply output of the generator unit and the A2 phase, B2 phase, C2 phase and zero wire N2 of the commercial electricity V; the power supply terminals of the resistive load circuit and the inductive load circuit are connected with the A1 phase, B1 phase, C1 phase and zero wire N1 of the power supply output of the generator unit; the output terminal of a voltage and current sampling circuit is connected with the input terminal of a special testing instrument for the generator; and the output terminal of the special testing instrument of the generator is connected with the computer by a 485 communication port. In the utility model, the intelligent alternating-current load cabinet has the benefits that the output power and bearing capability of various generator units can be tested accurately, all electric parameters of the generator unit, such as the dynamic parameters, can be tested, and the remote real-time control can be realized.
Description
Technical field
The utility model relates to a kind of high-power marine generator group intelligent AC load cabinet, belongs to genset and detects and the service equipment technical field.
Background technology:
Genset is the power system of boats and ships; have only the operate as normal of genset just can guarantee the safe navigation of boats and ships; and the marine generator group is insufficient because of oil inflame through regular meeting; piston, nozzle carbon distribution; cylinder body wearing and tearing aggravation, problems such as overall efficiency reduction cause the underload fault of genset; according to the genset service regulations requirement that country newly issues, need regularly diesel-driven generator to be with to carry test.
Recognizing at present that most of boats and ships enterprise and marine generator group manufacturer can not find can be comprehensively, impact/prominent unloading carried out in system, the various electrical quantitys of intelligent test genset and assistance, the intelligent AC load cabinet of regulation experiment, and genset frequently goes wrong after formally putting into operation, for example can not work long hours, can not carry or the like by the full power band.
Along with development of modern science and technology, shipbuilding industry is more and more higher to the requirement of AC power electric load, therefore how to strengthen the maintenance and the performance test of high-power generator group particularly important better.
The equipment of external at present test marine generator group performance mainly is the water load test macro.After the water resistance energising, the joule's heat energy of generation makes the temperature of water raise, vaporize, seethe with excitement, and causes resistance value to be difficult to stablize.Complicated operation will be according to the big or small water filling that loads power, with salt before each the loading; Must water filling after the evaporation.Need operating personnel to follow the tracks of at any time.After water load was used a period of time, pole plate was aging, capacity can descend (device such as 2MW can only load 1.5MW at most).The perishable device of salt solution, daily servicing is loaded down with trivial details.Water load is subjected to the influence of hardware constraints and load mode can not carry out the 25%-50%-75%-100%-75%-50%-25% stage load test of GB regulation.Can not carry out the high density data collection in the 12S impact, prominently unload test.Water resistance is difficult to move or transportation under the bigger situation of capacity.Marine generator has two tests: one is mooring trial, can carry out at harbour; One is sea trial (trial voyage or flight test), need full-load test after ship being driven in the sea or in the river.Water load is subjected to himself restriction to move difficulty, can not be used for doing sea trial.
Domestic like product is only applicable to the detection of the genset of miniwatt (in the general 500KW), and function is simple, and intelligent degree is low, and it is big to detect error, can not effectively grasp the performance of equipment.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of load testing accurate, easy to adjust, have remote control function, and the high-power marine generator group intelligent AC load cabinet that can test all electrical quantitys of genset.
The utility model adopts following technical scheme:
The utility model is made up of main control circuit, resistive load circuit, perceptual load circuit, circuit for remotely controlling, 485 communication interfaces, computing machine, voltage and current sampling circuit, generator dedicated tester, blower fan FD1-FD2; The output terminal of described main control circuit connects the input end of resistive load circuit and perceptual load circuit respectively, two power ends of described main control circuit connect respectively described genset power supply output A1 phase, B1 phase, C1 phase, zero line N1 and civil power V A2 mutually, B2 phase, C2 mutually and zero line N2; The power supply output A1 that the power end of described resistive load circuit and perceptual load circuit connects described genset respectively mutually, B1 phase, C1 mutually and zero line N1; Described circuit for remotely controlling is connected with described computing machine by 485 communication interfaces, and the output terminal of described circuit for remotely controlling connects another road input end of resistive load circuit and perceptual load circuit respectively; The input end of the described generator dedicated tester of output termination of described voltage and current sampling circuit, the output terminal of generator dedicated tester is connected with described computing machine by described 485 communication interfaces; Described current sampling circuit is made up of the current transformer that is contained on the described genset out-put supply line; Described voltage sampling circuit is directly to be made up of wiring between the respective input of the lead-out terminal of described genset and described generator dedicated tester.
The beneficial effects of the utility model are accurately to test the output work degree and the load capacity of all kinds of genset, and can comprise that dynamic parameter tests to all electrical quantitys of genset, can also realize remote control in real time.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of main control circuit;
Fig. 3 is the circuit theory sketch of resistive load circuit;
Fig. 4 is the circuit theory sketch of perceptual load circuit;
Fig. 5 is the circuit theory sketch of the resistive load control module in the circuit for remotely controlling;
Fig. 6 is the circuit theory sketch of the inductive load control module in the circuit for remotely controlling;
Fig. 7 is a Long-distance Control workflow synoptic diagram.
In Fig. 3, KK1-KK24 is a switch, and SN1-SN24 is a pilot lamp, and RJ1-RJ24 is a relay, and Z1-Z24 is a socket, and RJ1-1---RJ24-1 is respectively the normally opened contact of relay R J1-RJ24, and RR1-RR24 is respectively impedance unit.
In Fig. 4, KM1-KM19 is a switch, and SP1-SP19 is a pilot lamp, and LJ1-LJ19 is relay resistance, ZZ1 '---ZZ19 ' is a socket, RL1-1---RL19-1 is respectively relay LJ1---normally opened contact of LJ19, and RL1---RL19 is the induction reactance unit.
In Fig. 5, the peripheral cell of single-chip microcomputer IC2 has brilliant part Y1, capacitor C 1, C2,485 communication interfaces are made up of integrated package U51-U53 and peripheral cell resistance R 51-R54 thereof, and resistance R G1-RG40 is respectively the peripheral cell of optocoupler G1-G40, IC3-IC7 is the chip for driving of driver, Z1 '---Z40 ' is a plug, and JJ1-JJ40 is a relay, and D1-D40 is a fly-wheel diode, LED1---LED40 is a light emitting diode, and RG1---RG40 is a resistance.
In Fig. 6, the peripheral cell of single-chip microcomputer IC8 has crystal Y2, capacitor C, C4; 485 communication interfaces are made up of integrated package U81-U83 and peripheral cell resistance R 81-R84 thereof; Resistance R M1-RM40 is respectively the peripheral cell of optocoupler GM1-GM40, and IC9-IC14 is the chip for driving of driver, and ZZ1 '-ZZ40 ' is a plug, JM1-JM40 is a relay, DM1-DM40 is a fly-wheel diode, and LEDM1-LEDM40 is a light emitting diode, and RM1-RM40 is a resistance.
Embodiment
Embodiment 1 (referring to Fig. 1-7):
The impedance unit of the resistive load circuit of present embodiment is 24 grades, and totally 19 grades of the induction reactance unit of perceptual load circuit can satisfy 1500KW with interior any power combination.
By the embodiment 1 of Fig. 1-7 method as can be known, it is made up of main control circuit, resistive load circuit, perceptual load circuit, circuit for remotely controlling, 485 communication interfaces, computing machine, voltage and current sampling circuit, generator dedicated tester, blower fan FD1-FD2; The output terminal of described main control circuit connects the input end of resistive load circuit and perceptual load circuit respectively, two power ends of described main control circuit connect respectively described genset power supply output A1 phase, B1 phase, C1 phase, zero line N1 and civil power V A2 mutually, B2 phase, C2 mutually and zero line N2; The power supply output A1 that the power end of described resistive load circuit and perceptual load circuit connects described genset respectively mutually, B1 phase, C1 mutually and zero line N1; Described circuit for remotely controlling is connected with described computing machine by 485 communication interfaces, and the output terminal of described circuit for remotely controlling connects another road input end of resistive load circuit and perceptual load circuit respectively; The input end of the described generator dedicated tester of output termination of described voltage and current sampling circuit, the output terminal of generator dedicated tester is connected with described computing machine by described 485 communication interfaces; Described current sampling circuit is made up of the current transformer that is contained on the described genset out-put supply line; Described voltage sampling circuit is directly to be made up of wiring between the respective input of the lead-out terminal of described genset and described generator dedicated tester.
Described main control circuit (see figure 2) is made up of K switch 1-K5, contactor J1-J8, blower fan detecting unit; 1 end of the first winding point of described K switch 1 and the A1 of 3 termination genset mutually, 5 ends of its second winding point and the A2 of 7 termination civil powers mutually, 2 ends of the first winding point of K switch 1 are connected with 6 ends of the second winding point; And its first, second winding point interlock; The zero line N1 of genset is connected with the zero line N2 of civil power;
Contactor J1 is connected between 8 ends and zero line N1 of the second winding point of K switch 1; Contactor J2 is connected between 4 ends and zero line N1 of the first winding point of K switch 1; Between 2 ends and zero line N1 of contactor J3 and the first winding point that is connected on K switch 1 after K switch 2 is connected; Be connected between 2 ends and zero line N1 of K switch 2 behind the contactor J4 serial connection connection terminal F1-F2; After contactor J5 and the contactor J6 parallel connection again with 2 ends and zero line N1 of the first winding point that is connected on K switch 1 after K switch 3 is connected between; Contactor J7 is connected between 2 ends and zero line N1 of K switch 2 successively with after the contact 1-3 end of K switch 5, K switch 4 is connected; After connecting, the contact 1-2 end of contactor J8 and K switch 4 is connected between 2 ends and zero line N1 of K switch 2;
The A1 of genset, B1 meet connection terminal A10, B10, C10 with C1 through the normally opened contact J2-1 of contactor J2; The A2 of civil power, B2 and C2 through normal battle of contactor J1 J1-1 meet connection terminal A10, B10, C10;
Blower fan FD1 is the resistive load blower fan, and blower fan FD2 is the inductive load blower fan, and blower fan FD1 and blower fan FD2 meet connection terminal A10, B10, C10 through normally opened contact J3-1, the J6-1 of contactor J3 and contactor J6 respectively;
The normally opened contact J8-1 of contactor J8 be connected between connection terminal A10 and the connection terminal A11 after the normally opened contact J4-1 of contactor J4 connects; The normally opened contact J7-1 of contactor J7 be connected between connection terminal A10 and the line terminals A12 after the normally opened contact J5-1 of contactor J5 connects;
Described blower fan detecting unit is made up of rotation speed of fan pick-up unit FS, driver IC 1, temperature controller WKQ, K switch 6, pilot lamp SM1-SM2; The output terminal 1-3 pin of rotation speed of fan pick-up unit FS is the 1-3 pin of the respective input FJ4 of driver connected IC1 respectively, 3 pin of the output terminal FJ5 of driver IC 1 meet connection terminal F1 through K switch 6, temperature controller WKQ successively, and 3 pin of the output terminal FJ5 of driver IC 1 meet terminals F2; 1 pin of the output terminal FJ5 of driver IC 1 connects the node of temperature controller WKQ and K switch 6, and pilot lamp SM1 is in parallel with temperature controller WKQ; Pilot lamp SM2 is in parallel with K switch 6.
The structure of described resistive load circuit identical with the structure of perceptual load circuit (seeing Fig. 3, Fig. 4); Wherein resistive load circuit is made up of 18 road to 40 line structures identical impedance unit and control circuit thereof; Wherein first via impedance unit is made up of first group of resistance R R1, contactor RJ1, K switch K1, pilot lamp SN1, the joint chair Z1 of star connection; Described first group of resistance R R1 meets described A1, B1 and C1 respectively mutually through the normally opened contact RJ1-1 of contactor RJ1, the described zero line N1 of the public termination of described first group of resistance R R1; Be connected between described connection terminal A12 and the zero line N1 after the 3-4 end of described contactor RJ1 and K switch K1 is connected, 1 end of described K switch K1 is connected with 4 ends; Described pilot lamp SN1 is connected between 2 ends and zero line N1 of K switch K1; 2 pin of described socket Z1 meet connection terminal A11, and its 1 pin connects the node of contactor RJ1 and K switch K1.
Described circuit for remotely controlling is made up of resistive load control module and inductive load control module, the structure of described resistive load control module and inductive load control module identical (seeing Fig. 5, Fig. 6); Wherein resistive load control module (see figure 5) is made up of single-chip microcomputer IC2 and peripheral cell thereof, communication interface circuit, expansion interface, photoelectric isolating circuit, relay array, plug; Described expansion interface is made up of 5 extended chip U11-U15; The output of each extended chip connects a chip for driving by one group of 8 optocoupler, and the output of each chip for driving connects 8 relay circuits, and the structure of described 8 relay circuits is identical; Wherein first via extended chip is U11, the output terminal of described extended chip U11 connects the input end of the first chip for driving IC3 by optocoupler G1-G8, the output termination first group relay circuit of the first chip for driving IC3, described first group of relay route relay J J1, plug Z1 ', LED 1, resistance R 1, sustained diode 1 are formed; Relay J J1 is connected on+corresponding output end of 12V and chip for driving IC3 between, 2 pin of the moving contact 1 plug Z1 ' of relay J J1,3 pin of relay J J1 are pressed 1 pin of plug Z1 '.In the present embodiment, load control unit is only used 24 grades.
The model of described generator dedicated tester is 8961F1.
The model of described rotation speed of fan pick-up unit is FSJC38KV200.
The impedance unit of described resistive load circuit is divided into 24 grades (referring to Fig. 3), and the power of 24 groups of resistance R R24 of described the 1st group of resistance R R1 to the respectively is: 0.125KW, 0.125KW, 0.25KW, 0.5KW, 1KW, 2KW, 2KW, 5KW, 10KW, 10KW, 10KW, 10KW, 10KW, 20KW, 20KW, 50KW, 50KW, 50KW, 50KW, 50KW, 50KW, 50KW, 100KW, 100KW;
The induction reactance unit of described perceptual load circuit is divided into 19 grades (referring to Fig. 4), and the power of 19 groups of inductance RL19 of the 1st group of inductance RL1 to the respectively is: 0.125KVA, 0.125KVA, 0.25KVA, 0.5KVA, 1KVA, 2KVA, 2KVA, 5KVA, 10KVA, 10KVA, 10KVA, 10KVA, 20KVA, 20KVA, 50KVA, 50KVA, 50KVA, 50KVA, 50KVA.
Principle of work brief description to present embodiment is as follows:
One, main control circuit (see figure 2):
K switch 4 is the automatic/hand switch, is used to control automatic remote and loads contactor J8 and control manual loading contactor J7;
K switch 3 is master switchs of control inductive load, and first is used for controlling the blower fan contactor J6 of inductive load, and second is used for controlling the contactor J5. of working power A11 of each grade contactor LJ1-LJ19 of inductive load
Fan speed pick-up unit FSJC (38K)-V200 delivers to the digital signal that detects in the driver IC 1 (model is GCB6), and the output terminal of IC1 is connected with K switch 6, temperature controller WKQ successively and formed connection terminal F1, F2, and F1-F2 connects with J4.
Two, resistive load circuit (see figure 3):
By gauge tap KK1-KK24, control contactor RJ1-RJ24 realizes each grade control of resistive load;
Three, perceptual load circuit (see figure 4):
By gauge tap KM1-LM19, control contactor LJ1-LJ19 realizes each grade control of inductive load;
Four, circuit for remotely controlling (see figure 5):
Major function is a Long-distance Control, and telecommunication mainly is to realize (U51) by 485 typical circuits.After single-chip microcomputer IC2 receives control signal, carry out the action of attracting electric relay JJ1-JJ24 (present embodiment has only 24 grades of impedance units) automatically.The process of carrying out this action is: control signal expands to 40 road control lines by the U11-U15 octal latch, through optocoupler G1-G40 electrical isolation, and use high-voltage great-current darlington transistor array IC3-IC7 to increase the driving force of control signal, come the adhesive of pilot relay JJ1-JJ40 with this.
Five, load operation is for example:
For example: it is the genset of 1000kW that a general power is arranged, now need to load the test of 120kW, pull on the panel 100kW, 10kW in the corresponding power operating switch, 10kW upward to " ON " position, this AC load cabinet is promptly started working according to setting value.
Six, the major function of the engine dedicated tester (model 8961F1) in the utility model:
8961F1 generator dedicated tester is that a kind of singlechip technology that utilizes carries out the intelligent instrument of analyzing and processing to signal,
8961F1 generator dedicated tester not only has basic functions such as the generator of measurement stable state three-phase voltage, electric current, active power, reactive power, applied power, power factor, frequency, working time, also has the frequency analysis function, simultaneously analytical voltage, electric current 2～50 subharmonic content and total harmonic distortions; The electric energy accumulating function; Generator test, fluctuation test, transient test (load impact, load the is prominent unload) function of adjusting, voltage maximum, minimum value during the test load sudden change automatically, electric current maximum, minimum value, frequency maximum, minimum value, and release time; Also has strong voltage record wave energy, be furnished with photoelectricity isolation RS 485/RS232 serial communication function again, serial port function is powerful, not only can call together and survey all stable state parameters, can also call together and survey impact, prominently unload, voltage, electric current, frequency curve, and voltage, current harmonics curve and harmonic content.
Claims (7)
1. high-power marine generator group intelligent AC load cabinet is characterized in that it is made up of main control circuit, resistive load circuit, perceptual load circuit, circuit for remotely controlling, 485 communication interfaces, computing machine, voltage and current sampling circuit, generator dedicated tester, blower fan FD1-FD2; The output terminal of described main control circuit connects the input end of resistive load circuit and perceptual load circuit respectively, two power ends of described main control circuit connect respectively described genset power supply output A1 phase, B1 phase, C1 phase, zero line N1 and civil power V A2 mutually, B2 phase, C2 mutually and zero line N2; The power supply output A1 that the power end of described resistive load circuit and perceptual load circuit connects described genset respectively mutually, B1 phase, C1 mutually and zero line N1; Described circuit for remotely controlling is connected with described computing machine by 485 communication interfaces, and the output terminal of described circuit for remotely controlling connects another road input end of resistive load circuit and perceptual load circuit respectively; The input end of the described generator dedicated tester of output termination of described voltage and current sampling circuit, the output terminal of generator dedicated tester is connected with described computing machine by described 485 communication interfaces; Described current sampling circuit is made up of the current transformer that is contained on the described genset out-put supply line; Described voltage sampling circuit is directly to be made up of wiring between the respective input of the lead-out terminal of described genset and described generator dedicated tester.
2. high-power marine generator group intelligent AC load cabinet according to claim 1 is characterized in that described main control circuit is made up of K switch 1-K5, contactor J1-J8, blower fan detecting unit; 1 end of the first winding point of described K switch 1 and the A1 of 3 termination genset mutually, 5 ends of its second winding point and the A2 of 7 termination civil powers mutually, 2 ends of the first winding point of K switch 1 are connected with 6 ends of the second winding point; And its first, second winding point interlock; The zero line N1 of genset is connected with the zero line N2 of civil power;
Contactor J1 is connected between 8 ends and zero line N1 of the second winding point of K switch 1; Contactor J2 is connected between 4 ends and zero line N1 of the first winding point of K switch 1; Between 2 ends and zero line N1 of contactor J3 and the first winding point that is connected on K switch 1 after K switch 2 is connected; Be connected between 2 ends and zero line N1 of K switch 2 behind the contactor J4 serial connection connection terminal F1-F2; After contactor J5 and the contactor J6 parallel connection again with 2 ends and zero line N1 of the first winding point that is connected on K switch 1 after K switch 3 is connected between; Contactor J7 is connected between 2 ends and zero line N1 of K switch 2 successively with after the contact 1-3 end of K switch 5, K switch 4 is connected; After connecting, the contact 1-2 end of contactor J8 and K switch 4 is connected between 2 ends and zero line N1 of K switch 2;
The A1 of genset, B1 meet connection terminal A10, B10, C10 with C1 through the normally opened contact J2-1 of contactor J2; The A2 of civil power, B2 and C2 through normal battle of contactor J1 J1-1 meet connection terminal A10, B10, C10;
Blower fan FD1 is the resistive load blower fan, and blower fan FD2 is the inductive load blower fan, and blower fan FD1 and blower fan FD2 meet connection terminal A10, B10, C10 through normally opened contact J3-1, the J6-1 of contactor J3 and contactor J6 respectively;
The normally opened contact J8-1 of contactor J8 be connected between connection terminal A10 and the connection terminal A11 after the normally opened contact J4-1 of contactor J4 connects; The normally opened contact J7-1 of contactor J7 be connected between connection terminal A10 and the line terminals A12 after the normally opened contact J5-1 of contactor J5 connects;
Described blower fan detecting unit is made up of rotation speed of fan pick-up unit FS, driver IC 1, temperature controller WKQ, K switch 6, pilot lamp SM1-SM2; The output terminal 1-3 pin of rotation speed of fan pick-up unit FS is the 1-3 pin of the respective input FJ4 of driver connected IC1 respectively, 3 pin of the output terminal FJ5 of driver IC 1 meet connection terminal F1 through K switch 6, temperature controller WKQ successively, and 3 pin of the output terminal FJ5 of driver IC 1 meet terminals F2; 1 pin of the output terminal FJ5 of driver IC 1 connects the node of temperature controller WKQ and K switch 6, and pilot lamp SM1 is in parallel with temperature controller WKQ; Pilot lamp SM2 is in parallel with K switch 6.
3. high-power marine generator group intelligent AC load cabinet according to claim 2 is characterized in that the structure of described resistive load circuit is identical with the structure of perceptual load circuit; Wherein resistive load circuit is made up of 18 road to 40 line structures identical impedance unit and control circuit thereof; Wherein first via impedance unit is made up of first group of resistance R R1, contactor RJ1, K switch K1, pilot lamp SN1, the joint chair Z1 of star connection; Described first group of resistance R R1 meets described A1, B1 and C1 respectively mutually through the normally opened contact RJ1-1 of contactor RJ1, the described zero line N1 of the public termination of described first group of resistance R R1; Be connected between described connection terminal A12 and the zero line N1 after the 3-4 end of described contactor RJ1 and K switch K1 is connected, 1 end of described K switch K1 is connected with 4 ends; Described pilot lamp SN1 is connected between 2 ends and zero line N1 of K switch K1; 2 pin of described socket Z1 meet connection terminal A11, and its 1 pin connects the node of contactor RJ1 and K switch K1.
4. high-power marine generator group intelligent AC load cabinet according to claim 3, it is characterized in that described circuit for remotely controlling is made up of resistive load control module and inductive load control module, described resistive load control module is identical with the structure of inductive load control module; Wherein the resistive load control module is made up of single-chip microcomputer IC2 and peripheral cell thereof, communication interface circuit, expansion interface, photoelectric isolating circuit, relay array, plug; Described expansion interface is made up of 5 extended chip U11-U15; The output of each extended chip connects a chip for driving by one group of 8 optocoupler, and the output of each chip for driving connects 8 relay circuits, and the structure of described 8 relay circuits is identical; Wherein first via extended chip is U11, the output terminal of described extended chip U11 connects the input end of the first chip for driving IC3 by optocoupler G1-G8, the output termination first group relay circuit of the first chip for driving IC3, described first group of relay route relay J J1, plug Z1 ', LED 1, resistance R 1, sustained diode 1 are formed; Relay J J1 is connected on+corresponding output end of 12V and chip for driving IC3 between, 2 pin of the moving contact 1 plug Z1 ' of relay J J1,3 pin of relay J J1 are pressed 1 pin of plug Z1 '.
5. high-power marine generator group intelligent AC load cabinet according to claim 4, the model that it is characterized in that described generator dedicated tester is 8961F1.
6. high-power marine generator group intelligent AC load cabinet according to claim 5, the model that it is characterized in that described rotation speed of fan pick-up unit is FSJC38KV200.
7. high-power marine generator group intelligent AC load cabinet according to claim 6, the impedance unit that it is characterized in that described resistive load circuit is divided into 24 grades, and the power of 24 groups of resistance R R24 of described the 1st group of resistance R R1 to the respectively is: 0.125KW, 0.125KW, 0.25KW, 0.5KW, 1KW, 2KW, 2KW, 5KW, 10KW, 10KW, 10KW, 10KW, 10KW, 20KW, 20KW, 50KW, 50KW, 50KW, 50KW, 50KW, 50KW, 50KW, 100KW, 100KW;
The induction reactance unit of described perceptual load circuit is divided into 19 grades, and the power of 19 groups of inductance RL19 of the 1st group of inductance RL1 to the respectively is: 0.125KVA, 0.125KVA, 0.25KVA, 0.5KVA, 1KVA, 2KVA, 2KVA, 5KVA, 10KVA, 10KVA, 10KVA, 10KVA, 20KVA, 20KVA, 50KVA, 50KVA, 50KVA, 50KVA, 50KVA.
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| CN2009202543219U CN201637827U (en) | 2009-11-04 | 2009-11-04 | Intelligent alternating-current load cabinet for large-power marine generator unit |
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| CN2009202543219U CN201637827U (en) | 2009-11-04 | 2009-11-04 | Intelligent alternating-current load cabinet for large-power marine generator unit |
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| CN102305913A (en) * | 2011-05-25 | 2012-01-04 | 中国兵器工业集团第七○研究所 | Remote automatic control system for power consumption device of generator |
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|---|---|---|---|---|
| CN102305913A (en) * | 2011-05-25 | 2012-01-04 | 中国兵器工业集团第七○研究所 | Remote automatic control system for power consumption device of generator |
| CN104215902A (en) * | 2013-03-08 | 2014-12-17 | 上海骏颉自动化设备有限公司 | Intelligent testing system for power generator set |
| CN103383434A (en) * | 2013-07-18 | 2013-11-06 | 广东福德电子有限公司 | Intelligent load resistance box |
| CN105116324A (en) * | 2015-09-01 | 2015-12-02 | 内蒙古工业大学 | Intelligent resistance-inductance integrated load cabinet system |
| CN105974315A (en) * | 2016-07-07 | 2016-09-28 | 龙岩市海德馨汽车有限公司 | Power vehicle load testing apparatus and testing method |
| CN108318847A (en) * | 2018-01-30 | 2018-07-24 | 国网上海市电力公司 | A kind of purely resistive AC load of automatic constant current |
| CN108318719A (en) * | 2018-01-30 | 2018-07-24 | 国网上海市电力公司 | A kind of stepless changing purely resistive AC load |
| CN113311280A (en) * | 2021-07-30 | 2021-08-27 | 中国人民解放军海军工程大学 | Health grading monitoring device for complex electromechanical system |
| CN113311280B (en) * | 2021-07-30 | 2021-12-28 | 中国人民解放军海军工程大学 | Health grading monitoring device for complex electromechanical system |
| CN113702827A (en) * | 2021-08-30 | 2021-11-26 | 中国船舶重工集团公司第七O三研究所无锡分部 | Automatic power pre-adding device for low-pressure water resistor |
| CN113702827B (en) * | 2021-08-30 | 2024-02-09 | 中国船舶重工集团公司第七O三研究所无锡分部 | Automatic power pre-adding device for low-voltage water resistor |
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