CN105263220A - Analog load cabinet of airport navigational light dimmer - Google Patents
Analog load cabinet of airport navigational light dimmer Download PDFInfo
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- CN105263220A CN105263220A CN201510666939.6A CN201510666939A CN105263220A CN 105263220 A CN105263220 A CN 105263220A CN 201510666939 A CN201510666939 A CN 201510666939A CN 105263220 A CN105263220 A CN 105263220A
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Abstract
The invention discloses an analog load cabinet of an airport navigational light dimmer which is characterized in that the analog load cabinet comprises a cabinet body and an analog load that is placed on the cabinet body; the analog load is connected with the output end of the airport navigational light dimmer; and the analog load further comprises N power resistor branch circuits which are connected in series, and a plurality of switch circuits which are parallelly connected with the power resistor branch circuits; and through controlling on-off state of the switch circuits, connecting between the power resistor branch circuits which are parallelly connected with the switch circuits and the analog load, or bypassing of the power resistor branch circuits for being disconnected with the analog load is realized. The analog load cabinet of the airport navigational light dimmer can realize continuous and adjustable analog load power in a manner that 25 watts are used as a least step length, thereby satisfying a requirement for various output powers of full series of standard light dimmers.
Description
Technical field
The present invention relates to voyage aid of the airport apparatus field, be specially a kind of voyage aid of the airport light organ fictitious load cabinet.
Background technology
System for aerial navigation on airport guarantees to get off the plane at night or the lower situation of visibility the necessary visual navaid of Normal Take-Off And Landing.Wherein, constant-current dimmer is the nucleus equipment in system for aerial navigation on airport, and its performance quality determines the stability of system for aerial navigation on airport, reliability and economy, and is closely related with takeoff and landing and the fail safe of sliding.The load of constant-current dimmer to be together in series via return cable by isolating transformer by the halogen bulb being distributed in movement area to form.At present, voyage aid of the airport apparatus field Problems existing is:
1, for newly-built airports user or the user purchasing new machine, after dimmer transports on-the-spot also installation in position to, unit test must be carried out, Normal practice is that first zero load and load short circuits run a period of time (generally can adopt one week), if fault-free, connect true lighting loads again to test, but in the process of test, the phenomenon that performance issue due to dimmer causes loop large area even whole loop lighting loads to burn happens occasionally, improve experimentation cost, there is the risk of repairing light fixture.
2, for general old airport user, after dimmer fault, keeped in repair by light station spot replace parts, but the dimmer after maintenance not necessarily can recover normal, there is the risk that loop lamp burns and rushes to repair equally.
3, for dimmer manufacturer, also product testing must be carried out and aging, its testing stand adopted also is adopt up to a hundred true lighting loads in series usually, because every platform dimmer needs aging tens of hours, and the life-span of special halogen bulb only 2000 hours and fetch long price, add the production cost of dimmer manufacturer.
No matter existing load cabinet is three-phase, single-phase or direct current, high pressure or low pressure, water resistance, dry type resistance or oil immersion resistance be all the product being applicable to generator or voltage source usually, but these products all cannot be applied to aid-to-navigation light dimmer field tests, this is because aid-to-navigation light dimmer is high pressure, low current, the single phase alternating current (A.C.) adjustable current source high-end devices of middle low power, its output-current rating is 6.6 amperes, is divided into 2.8, 3.4, 4.1, 5.2, 6.6 (ampere) five grade light intensity, maximum rated voltage is 4545V.AC effective value, according to MH-T6010-1999 constant-current dimmer standard, is divided into power 4KVA, 5KVA, 7KVA, 10KVA, 15KVA, 20KVA, 25KVA, the each series of products of 30KVA, its unloaded power output is short-circuit condition (voltage source does not allow load short circuits), load increase and decrease regulates chargedly must carry out constant current index and the dynamic characteristic of testing dimmer, in the process that load increase and decrease regulates, current source does not allow open circuit, and real output is directly proportional to load resistor value (voltage source real output and load resistor value are inversely proportional to).
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of voyage aid of the airport light organ fictitious load cabinet.
Technological means of the present invention is as follows:
A kind of voyage aid of the airport light organ fictitious load cabinet, described fictitious load cabinet comprises: cabinet, the fictitious load be placed on cabinet; Described fictitious load is connected with airfield aid dimmer output terminals, and comprises:
The power resistor branch road of N number of mutual series connection;
Multiple switching circuit be connected with each power resistor branch circuit parallel connection respectively; By controlling the on off state of described switching circuit, the power resistor branch road realizing being connected in parallel with this switching circuit accesses fictitious load or is bypassed and disconnects with described fictitious load;
In addition, described fictitious load also comprises the unloading protecting switch J0 be serially connected between voyage aid of the airport light organ one output and described fictitious load one end; When unloading protecting switch J0 disconnects, the connection between described fictitious load and described voyage aid of the airport light organ disconnects;
In addition, described fictitious load also comprises the temperature detecting module for detecting variations in temperature in cabinet; The control section of described unloading protecting switch J0 is connected with described temperature detecting module, and when in the cabinet that described temperature detecting module detects, temperature is higher than preset temperature, described control section controls described unloading protecting switch J0 and disconnects;
In addition, fictitious load also comprises and being connected with single-phase alternating current, for the Switching Power Supply that out-put supply V powers to fictitious load; Manual power switch SF2 is serially connected with between the input of described Switching Power Supply and single-phase alternating current; Described switching circuit comprises vacuum relay and toggle switch; The normally opened contact of described vacuum relay and described power resistor branch circuit parallel connection; The coil of described vacuum relay and the mutual series connection of normally closed switch of described toggle switch are between Switching Power Supply positive pole and negative pole;
In addition, described fictitious load also comprises Loading Control switch S F1; Described temperature detecting module adopts temperature switch BT; Described unloading protecting switch J0 adopts vacuum relay; The coil of described unloading protecting switch J0 and described temperature switch BT, the mutual series connection of described Loading Control switch S F1 are between Switching Power Supply positive pole and negative pole; The coil two ends of described unloading protecting switch J0 also and be connected with indicator light PG; The contact of described unloading protecting switch J0 is serially connected between voyage aid of the airport light organ one output and described fictitious load one end;
Further, when N equals 12, first power resistor branch road adopts rated power to be more than or equal to 25W, resistance is the power resistor R1 of 0.57 Ω, second power resistor branch road adopts rated power to be more than or equal to 50W, resistance is the power resistor R2 of 1.15 Ω, 3rd power resistor branch road adopts rated power to be more than or equal to 100W, resistance is the power resistor R3 of 2.30 Ω, 4th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R4 of 4.59 Ω, 5th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R5 of 4.59 Ω, 6th power resistor branch road adopts rated power to be more than or equal to 500W, resistance is the power resistor R6 of 11.48 Ω, 7th power resistor branch road adopts rated power to be more than or equal to 1kW, resistance is the power resistor R7 of 22.96 Ω, 8th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R8 of 45.91 Ω, 9th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R9 of 45.91 Ω, the rated power of the tenth power resistor branch road is more than or equal to 5kW, resistance is 114.78 Ω, the rated power of the 11 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω, the rated power of the 12 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω,
Further, tenth power resistor branch road adopts power resistor R10a, R10b is mutually in series, and power resistor R10a, the rated power of R10b is all more than or equal to 2.5kW, resistance is 57.39 Ω, 11 power resistor branch road adopts power resistor R11a, R11b, R11c, R11d is mutually in series, and power resistor R11a, R11b, R11c, the rated power of R11d is all more than or equal to 2.5kW, resistance is 57.39 Ω, 12 power resistor branch road adopts power resistor R12a, R12b, R12c, R12d is mutually in series, and power resistor R12a, R12b, R12c, the rated power of R12d is all more than or equal to 2.5kW, resistance is 57.39 Ω,
Further, the power resistor that the rated power included by power resistor branch road is more than or equal to 100W is coated by the alloy sleeve with U-shaped structure, and is formed with the alloy sheet of Spiral distribution on described alloy sleeve outer wall;
In addition, described fictitious load cabinet also comprises the heat abstractor be arranged in cabinet.
Owing to have employed technique scheme, voyage aid of the airport light organ fictitious load cabinet provided by the invention, can realize with 25 watts as minimum step, fictitious load power continuously adjustabe, to adapt to the requirement of the various power output of complete series standard dimmers, for voyage aid of the airport light organ manufacturer and dimmer airport user provide a packaged type fictitious load testing stand, avoid the new machine debugging of dimmer in prior art, the aging of product, Product Acceptance Review is checked, up to a hundred the lamps that fault dimmer maintenance test adopts Halogen lamp LED series connection real load to bring burn risk simultaneously, the repairing that particularly after maintenance, generation burning lamp causes is changed light fixture and is prevented from navigating by water the risk incured loss through delay, the manufacturing cost of aging bad lamp significantly can be reduced, to the safety on airport to dimmer manufacturer, stable, economical operation is significant, can meet dimmer load performance constant current test, maximum belt loading capability is tested, open circuit test, overcurrent shock test, dynamic constant current performance test is to the requirement of load variations.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of fictitious load cabinet of the present invention;
Fig. 2 is the circuit theory diagrams of fictitious load cabinet of the present invention;
Fig. 3 is the structural representation of fictitious load cabinet of the present invention.
In figure: 1, cabinet, 2, alloy sleeve, 3, blinds bar hole, 4, handle, 5, universal wheel.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of voyage aid of the airport light organ fictitious load cabinet as shown in Figure 1, Figure 2 and Figure 3, described fictitious load cabinet comprises: cabinet 1, the fictitious load be placed on cabinet 1, described fictitious load is connected with airfield aid dimmer output terminals, and comprises: the power resistor branch road of N number of mutual series connection, multiple switching circuit be connected with each power resistor branch circuit parallel connection respectively, by controlling the on off state of described switching circuit, the power resistor branch road realizing being connected in parallel with this switching circuit accesses fictitious load or is bypassed and disconnects with described fictitious load, in addition, described fictitious load also comprises the unloading protecting switch J0 be serially connected between voyage aid of the airport light organ one output and described fictitious load one end, when unloading protecting switch J0 disconnects, the connection between described fictitious load and described voyage aid of the airport light organ disconnects, in addition, described fictitious load also comprises the temperature detecting module for detecting variations in temperature in cabinet 1, the control section of described unloading protecting switch J0 is connected with described temperature detecting module, and when in the cabinet 1 that described temperature detecting module detects, temperature is higher than preset temperature, described control section controls described unloading protecting switch J0 and disconnects, in addition, fictitious load also comprises and being connected with single-phase alternating current, for the Switching Power Supply that out-put supply V powers to fictitious load, manual power switch SF2 is serially connected with between the input of described Switching Power Supply and single-phase alternating current, described switching circuit comprises vacuum relay and toggle switch, the normally opened contact of described vacuum relay and described power resistor branch circuit parallel connection, the coil of described vacuum relay and the mutual series connection of normally closed switch of described toggle switch are between Switching Power Supply positive pole and negative pole, in addition, described fictitious load also comprises Loading Control switch S F1, described temperature detecting module adopts temperature switch BT, described unloading protecting switch J0 adopts vacuum relay, the coil of described unloading protecting switch J0 and described temperature switch BT, the mutual series connection of described Loading Control switch S F1 are between Switching Power Supply positive pole and negative pole, the coil two ends of described unloading protecting switch J0 also and be connected with indicator light PG, the contact of described unloading protecting switch J0 is serially connected between voyage aid of the airport light organ one output and described fictitious load one end, further, when N equals 12, first power resistor branch road adopts rated power to be more than or equal to 25W, resistance is the power resistor R1 of 0.57 Ω, second power resistor branch road adopts rated power to be more than or equal to 50W, resistance is the power resistor R2 of 1.15 Ω, 3rd power resistor branch road adopts rated power to be more than or equal to 100W, resistance is the power resistor R3 of 2.30 Ω, 4th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R4 of 4.59 Ω, 5th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R5 of 4.59 Ω, 6th power resistor branch road adopts rated power to be more than or equal to 500W, resistance is the power resistor R6 of 11.48 Ω, 7th power resistor branch road adopts rated power to be more than or equal to 1kW, resistance is the power resistor R7 of 22.96 Ω, 8th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R8 of 45.91 Ω, 9th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R9 of 45.91 Ω, the rated power of the tenth power resistor branch road is more than or equal to 5kW, resistance is 114.78 Ω, the rated power of the 11 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω, the rated power of the 12 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω, further, tenth power resistor branch road adopts power resistor R10a, R10b is mutually in series, and power resistor R10a, the rated power of R10b is all more than or equal to 2.5kW, resistance is 57.39 Ω, 11 power resistor branch road adopts power resistor R11a, R11b, R11c, R11d is mutually in series, and power resistor R11a, R11b, R11c, the rated power of R11d is all more than or equal to 2.5kW, resistance is 57.39 Ω, 12 power resistor branch road adopts power resistor R12a, R12b, R12c, R12d is mutually in series, and power resistor R12a, R12b, R12c, the rated power of R12d is all more than or equal to 2.5kW, resistance is 57.39 Ω, further, the power resistor that the rated power included by power resistor branch road is more than or equal to 100W is coated by the alloy sleeve 2 with U-shaped structure, and is formed with the alloy sheet of Spiral distribution on described alloy sleeve 2 outer wall, in addition, described fictitious load cabinet also comprises the heat abstractor be arranged in cabinet 1, cabinet 1 of the present invention is removable cabinet, is specially bottom cabinet 1 and is provided with movable pulley, the structural representation of fictitious load cabinet of the present invention as shown in Figure 3, described heat abstractor is blower fan, is specially the blower fan of 220VAC, 50/60Hz, diameter 400mm, described heat abstractor can also adopt oil cooling to add water-cooled and realize forced heat radiation, described temperature detecting module adopts and is made up of the normally closed switch of expansion of metal formula temperature relay, when test point temperature in fictitious load cabinet higher than preset temperature as 100 ± 5 DEG C time, switch break trigger protection act, described cabinet 1 can also be provided with guidance panel, and Loading Control switch S F1 and each toggle switch can be arranged on described guidance panel, described guidance panel can also install other console switch and Displaying Meter, described Switching Power Supply is D.C. regulated power supply, for vacuum relay and Displaying Meter etc. provide control or driving power, be connected by terminals A, B between described fictitious load with airfield aid dimmer output terminals.
The output voltage of Switching Power Supply of the present invention is that the V+ in 24V, Fig. 2 represents Switching Power Supply positive pole; The rated current of each power resistor that power resistor branch road comprises is 6.6A.AC real effective (MH-T6010-1999 constant-current dimmer standard, IEC61822-2009.05.01 constant-current dimmer, FAA150-5345-10gClass1 standard); Little resistance load in each power resistor branch road can be made up of the parallel connection of standard series glaze resistance, or by the first parallel connection of standard series glaze resistance again series hybrid form.
The present invention is when N equals 12, first power resistor branch road adopts rated power to be more than or equal to 25W, resistance is the power resistor R1 of 0.57 Ω, second power resistor branch road adopts rated power to be more than or equal to 50W, resistance is the power resistor R2 of 1.15 Ω, 3rd power resistor branch road adopts rated power to be more than or equal to 100W, resistance is the power resistor R3 of 2.30 Ω, 4th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R4 of 4.59 Ω, 5th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R5 of 4.59 Ω, 6th power resistor branch road adopts rated power to be more than or equal to 500W, resistance is the power resistor R6 of 11.48 Ω, 7th power resistor branch road adopts rated power to be more than or equal to 1kW, resistance is the power resistor R7 of 22.96 Ω, 8th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R8 of 45.91 Ω, 9th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R9 of 45.91 Ω, the rated power of the tenth power resistor branch road is more than or equal to 5kW, resistance is 114.78 Ω, the rated power of the 11 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω, the rated power of the 12 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω, further, tenth power resistor branch road adopts power resistor R10a, R10b is mutually in series, and power resistor R10a, the rated power of R10b is all more than or equal to 2.5kW, resistance is 57.39 Ω, 11 power resistor branch road adopts power resistor R11a, R11b, R11c, R11d is mutually in series, and power resistor R11a, R11b, R11c, the rated power of R11d is all more than or equal to 2.5kW, resistance is 57.39 Ω, 12 power resistor branch road adopts power resistor R12a, R12b, R12c, R12d is mutually in series, and power resistor R12a, R12b, R12c, the rated power of R12d is all more than or equal to 2.5kW, resistance is 57.39 Ω, the power features value of above-mentioned power resistor is the actual power consumption value presented when dimmer rated current exports, the power dissipation rating of each resistance reserves enough for amount, the resistance of each resistance can be passed through
obtain, wherein P is the different capacity grade needing to obtain, and I value is 6.6A, by controlling the on off state of each switching circuit, realize the increase and decrease of fictitious load power.In addition, the characteristic value of each power resistor branch road is not limited to this, and other combination also can realize goal of the invention.As R1/1W/0.023 Ω, R2/2W/0.046 Ω, R3/2W/0.046 Ω, R4/5W/0.115 Ω, R5/10W/0.23 Ω, R6/20W/0.46 Ω, R7/20W/0.46 Ω, R8/50W/1.15 Ω, or R1/100W/2.30 Ω, R2/200W/4.59 Ω, R3/200W/4.59 Ω, R4/500W/11.48 Ω, R5/1KW/22.96 Ω, R6/2KW/45.91 Ω, R7/2KW/45.91 Ω, Deng, the characteristic value combinations of different capacity resistance branch, difference is the continuously adjustable minimum step of power, power resistor branch road quantity, and with the switching circuit quantity of power resistor branch circuit parallel connection.The present invention has taken into full account the factors such as the minimum power of the aid-to-navigation light (in fact selecting Halogen lamp LED) of the actual use in airport, determine to take 25W as minimum step, realize 0 ~ 30,000W absorbed power continuously adjustabe, therefore getting N, to equal 12 are preferred technical schemes, and the quantity making the high pressure resistant line of power resistor branch road quantity, switching circuit quantity and some other transition terminal and inside is in this case minimum.
The present invention is when unloading protecting switch J0 disconnects; voyage aid of the airport light organ is in open-circuit condition; electric current is not had to flow through fictitious load; fictitious load cabinet can not generate heat; voyage aid of the airport light organ is protected due to load open circuit, closes and exports and report to the police, when unloading protecting switch J0 closes; be then stress state, load weight realizes continuous variable by the on off state of by-pass cock circuit.
Preferably, unloading protecting switch J0 adopts vacuum relay, when Loading Control switch S F1 closes, simultaneous temperature switch BT is normally off, then the coil of unloading protecting switch J0 obtains electric, its normally opened contact had closes, dimmer is made to be in stress state, indicator light PG luminous prompting current state simultaneously, when in the cabinet 1 that described temperature detecting module detects, temperature is higher than preset temperature, such as heat abstractor breaks down, or environment ventilation is not smooth, or dimmer output overcurrent, so temperature switch BT disconnects, described unloading protecting switch J0 coil losing electricity, and then its normally opened contact had also is converted to off-state by closure state, dimmer is in open-circuit condition, electric current is not had to flow through load cabinet, thus protection load cabinet avoided cause thermal damage, indicator light PG extinguishes as alarm simultaneously.Loading Control switch S F1 can be used for the test realizing dimmer Open Output Voltage index and dimmer open circuit protecting function.
When the switching circuit that arbitrary power resistor branch road is in parallel closes, then this power resistor branch road is bypassed, and then disconnect with fictitious load, when the switching circuit that arbitrary power resistor branch road is in parallel disconnects, then this power resistor branch road is directly connected in series in the middle of fictitious load, switching circuit of the present invention comprises vacuum relay and toggle switch, the normally opened contact of described vacuum relay and described power resistor branch circuit parallel connection, the coil of described vacuum relay and the mutual series connection of normally closed switch of described toggle switch are between Switching Power Supply positive pole and negative pole, particularly, when the normally closed switch of the toggle switch in arbitrary switching circuit is in closure state, vacuum relay coil in this switching circuit obtains electric, and then the closing of contact of vacuum relay, thus the power resistor branch, short-circuit in parallel with this switching circuit, when the normally closed switch of the toggle switch in arbitrary switching circuit is in off-state, vacuum relay coil losing electricity in this switching circuit, and then the contact of vacuum relay disconnects, thus the power resistor branch road in parallel with this switching circuit accesses fictitious load.
Particularly, the rating formula of fictitious load is as follows:
P＝25×K1+50×K2+100×K3+200×K4+200×K5+500×K6
+1000×K7+2000×K8+2000×K9+5000×K10
+10000×K11+10000×K12
Wherein, the operating state that P represents fictitious load power, K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, K11, K12 represent the toggle switch in 12 switching circuits, when toggle switch closes, gets 0, when toggle switch disconnects, gets 1.When all toggle switchs all close, K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, K11, K12 all get 0, fictitious load power P=0W, when all toggle switchs all disconnect, K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, K11, K12 get 1, then fictitious load power P=31075W, when K1 to K6 gets 0, and when K7 to K12 gets 1, fictitious load power P=30kW, when needs 17kW power, make K9 to K11 get 1, all the other get 0.
The public terminal connecting zero line N of blower motor, Working winding terminals to be started to exchange fire line L via manual power switch SF2, start winding connection end and connect Working winding terminals, when manual power switch SF2 closes via start-up capacitance C, fan starting, carries out ventilation and heat to each power resistor; Described guidance panel can be positioned at above cabinet 1, mainly install and fix 12 toggle switchs, air switch, Loading Control switch and indicator light, can also select voltmeter and ammeter are installed, to indicate roughly current voltage and electric current, 12 toggle switchs, guidance panel all uses the name of power weight and the mark of their correspondences; Described Switching Power Supply is the switching power supply of 85 ~ 265V.AC, the input of 50/60Hz single phase alternating current (A.C.), 24V.DC, 2A output, for system provides 24VDC direct current driving power supply; As shown in Figure 3, before and after described cabinet 1, side plate has the blinds bar hole 3 for ventilating, the handle 4 that left side plate respectively has to turn 90 degrees downwards to pack up at angle, and can lift, can tow, bottom, with four universal wheels 5 that lock, can facilitate movement.
In order to reduce manufacturing cost of the present invention and manufacture difficulty to greatest extent, the power resistor that rated power included by power resistor branch road is more than or equal to 100W is coated by the alloy sleeve 2 with U-shaped structure, and on described alloy sleeve 2 outer wall, be formed with the alloy sheet of Spiral distribution, in order to increase heat transfer sheet area, tenth power resistor branch road, 11 power resistor branch road, 12 power resistor branch road all adopts two or more power resistor in series, due to the power of power resistor and resistance larger, then need relatively larger heat transfer sheet area, make the alloy sleeve 2 with U-shaped structure oversize and not of uniform size, to the overall design of the manufacture of resistive element element and load cabinet and installation, all bring cost pressure, present invention employs preferred version, namely the tenth power resistor branch road adopts power resistor R10a, R10b is mutually in series, 11 power resistor branch road adopts power resistor R11a, R11b, R11c, R11d is mutually in series, 12 power resistor branch road adopts power resistor R12a, R12b, R12c, R12d is mutually in series, and these power resistors are all rated power is 2.5kW, resistance is 57.39 Ω, like this, totally 13 power resistors included in 7th power resistor branch road to the 12 power resistor branch road can use the alloy sleeve of same size coated, and use the resistance wire material of same size to manufacture, just resistance wire length is different, the identical design being convenient to air channel in load cabinet of the overall dimension of power resistor, above-mentioned technological means significantly reduces cost and the difficulty of the manufacture of resistive element element and load cabinet overall design and installation.
The general operation method of voyage aid of the airport light organ fictitious load cabinet of the present invention is: the former load of tested voyage aid of the airport light organ pulled down, terminals A, B is connected on light cable, two terminals not polarity, connect single phase industrial frequence power supply and reliable ground, closed manual power switch SF2, hear that heat abstractor such as fan starting operates, all switching circuits are placed in closure state, putting Loading Control switch S F1 is closure state, indicator light PG is luminous, and dimmer is started shooting and is in Light Condition constant current operation; According to the power grade of tested dimmer, respectively according to ascending order or descending set to 0 % (zero load), 1%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% power and arbitrary value, and test under each power and record the constant current output value of five lighting level, and judge whether to meet constant current accuracy requirement with standard control; Usual full load exports and does not reach specified 6.6A, power can be reduced until Pyatyi light output is constant in 6.6A, power is now exactly that the maximum output carrying load ability of dimmer under present input voltage environment is (because dimmer power refers to the specified apparent power of its step-up transformer, therefore actual load capacity does not reach nominal value, and maximum output carrying load ability is the important indicator evaluating dimmer); Under fully loaded Pyatyi optical condition, Condition of Sudden Unloading 0 ~ 100% arbitrary value, the overcurrent protection ability of observation dimmer and Dynamic-Recovery constant current ability; In any bearing power, arbitrarily lighting level constant current state, put Loading Control switch S F1 and be off state, indicator light PG extinguishes, the open-circuit-protection ability of observation dimmer test record dimmer open circuit output maximum voltage.Experiment terminates, and closes dimmer, postpones one minute, closes single phase poaer supply, and each switching circuit resets.
The actual fully loaded maximum load capability of dimmer looks the difference of dimmer kind and manufacturer and different, needs the on off state of finely tuning each switching circuit to determine, and tests the harmonic distortion of dimmer, efficiency and power factor etc.Such as, sinewave dimmer load capacity of new generation is comparatively strong, and power factor is 1, and harmonic current discharge is less than 5%, and traditional controllable silicon dimmer, magnetic saturation dimmer even load ability are more weak, and power factor is low, harmonic pollution is serious.
Table 1 be respectively used to the test of 2.5KW, 30KW dimmer load performance, 0% (zero load), 1%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% power time toggle switch combination of actions table, wherein contain minimum power and the typical dimmer rated power boundary condition of maximum power two kinds.
Table 1 is toggle switch combination of actions table when realizing different fictitious load power.
The present invention changes load resistance by vacuum diverter switch array, realizes with 25 watts as minimum step, 0 ~ 30,000 watt of absorbed power continuously adjustabe, to adapt to the requirement of the various power output of complete series standard dimmers, as 4kW, 5kW, 7kW, 10kW, 15kW, 20kW, 25kW, 30kW, for voyage aid of the airport light organ manufacturer and dimmer airport user provide a packaged type fictitious load testing stand, avoids existing new machine debugging, the aging of product, Product Acceptance Review is checked, the risk that up to a hundred the lamps that fault dimmer maintenance test adopts Halogen lamp LED series connection real load to bring burn simultaneously, the repairing that particularly after maintenance, generation burning lamp causes is changed light fixture and is prevented from navigating by water the risk incured loss through delay, the manufacturing cost of aging bad lamp significantly can be reduced, to the safety on airport to dimmer manufacturer, stable, economical operation is significant, can meet dimmer load performance constant current test, maximum belt loading capability is tested, open circuit test, overcurrent shock test, dynamic constant current performance test is to the requirement of load variations.Voyage aid of the airport light organ fictitious load cabinet provided by the invention, compared to the prior art tool has the following advantages:
1, the present invention is the laboratory facilities that airport user provides full test voyage aid of the airport light organ main performance, significant for performance quality, the guarantee airport Navigation capacity grasping dimmer product.Dimmer short circuit operation can only be done in current airport, then have a power failure and connect truly constant lighting loads, observe five lighting level constant current situations, dynamic test, load performance test, load capacity test etc. cannot be done, when more cannot know that lighting circuit cable occurs that two points ground fault causes large area lamp load to be shorted, whether dimmer and residue there are not the lamp load of short circuit can burn;
2, the present invention is that newly-built airports user or the user purchasing new machine provide new machine examination laboratory facilities, avoid loop large area even whole loop lamp load and burn the phenomenon happened occasionally, reduce and build loss, shorten trial run and check and accept the duration, improve construction efficiency, at present the new machine mode of checking and accepting is for being that first zero load (load short circuits) runs week age fault-free, because dimmer heating itself is lighter time unloaded, full load dimmer can not be represented can normally work, therefore connect the test of true lighting loads again, the phenomenon that dimmer performance problem causes loop large area even whole loop lamp load to burn happens occasionally.
3, the present invention is that general airport user provides dimmer maintenance experimental safe means, avoids the possibility of burning aid-to-navigation light, after dimmer fault, by the field service of light station, after having changed suspicious parts, dimmer not necessarily recovers normal, sometimes problem is more serious, if directly adopt actual loading test, there is the risk that lamp large area even whole loop, loop lamp load burns, once occur, in order to ensure navigation lamp, the Halogen lamp LED pearl namely changing all filament blows must be rushed to repair immediately, because light fixture disperses in light region at (120 meters every, usual interval) very much, and many light fixtures are the flat lamps being embedded in below airstrips ground level, dismounting lampshade is very difficult, length consuming time.If during dimmer maintenance, turn-off lamp optical cable, adopts fictitious load cabinet analog modulation of the present invention load to be connected on and is tested by maintenance dimmer output terminals, once dimmer generation overcurrent impacts, not only voyage aid of the airport light fixture is safe, and fictitious load cabinet is also safe.Due to the existence of thermal inertia and heat abstractor, the present invention can bear 3 times of rated current and can not burn out for more than 10 seconds, and the filament of Halogen lamp LED very tiny, be sealed in the glass shell of 2 cubic centimetres, 2 times of overcurrents, several cycles will blow.
4, the present invention be dimmer manufacturer provide one debugging and aging test bed, reduce dimmer manufacturing cost.Current dimmer manufacturer adopts true aid-to-navigation light load to carry out debugging and aging usually, not only the first power transmission of product has burning lamp risk, simultaneously when the aging of product is tested, every platform dimmer aging tens of hours under nominal power, and only 2000 hours and price are tens times of ordinary incandescent lamp special navaid bulb (such as 6.6A/200W) life-span, cost pressure is brought (to manufacture 200 according to annual to manufacturer, every platform calculates for aging 72 hours, at least need two testing stands, eachly change 3.5 batches, lamp, only aging lamp loss reaches 100,000 every year, wherein do not comprise the first power transmission of dimmer and surprisingly burn lamp loss).
5, the present invention provides a test load being applicable to product standard for high-low pressure electric product inspection center, improves the reliability of the consistency of production-type test, comparativity and data.High-low pressure electric product inspection center domestic at present all lacks the resistive load of applicable aid-to-navigation light dimmer.And MH-T6010-1999 constant-current dimmer (CAAC's industry standard), IEC61822-2009.05.01 constant-current dimmer (international standard), FAA150-5345-10g constant-current dimmer and monitoring (Federal Aviation management board standard), be all defined in the key technical indexes that validation criteria under resistive load condition specifies.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (9)
1. a voyage aid of the airport light organ fictitious load cabinet, is characterized in that, described fictitious load cabinet comprises: cabinet, the fictitious load be placed on cabinet; Described fictitious load is connected with airfield aid dimmer output terminals, and comprises:
The power resistor branch road of N number of mutual series connection;
Multiple switching circuit be connected with each power resistor branch circuit parallel connection respectively; By controlling the on off state of described switching circuit, the power resistor branch road realizing being connected in parallel with this switching circuit accesses fictitious load or is bypassed and disconnects with described fictitious load.
2. voyage aid of the airport light organ fictitious load cabinet according to claim 1, is characterized in that described fictitious load also comprises the unloading protecting switch J0 be serially connected between voyage aid of the airport light organ one output and described fictitious load one end; When unloading protecting switch J0 disconnects, the connection between described fictitious load and described voyage aid of the airport light organ disconnects.
3. voyage aid of the airport light organ fictitious load cabinet according to claim 1, is characterized in that described fictitious load also comprises the temperature detecting module for detecting variations in temperature in cabinet; The control section of described unloading protecting switch J0 is connected with described temperature detecting module, and when in the cabinet that described temperature detecting module detects, temperature is higher than preset temperature, described control section controls described unloading protecting switch J0 and disconnects.
4. voyage aid of the airport light organ fictitious load cabinet according to claim 3, is characterized in that,
Fictitious load also comprises and being connected with single-phase alternating current, for the Switching Power Supply that out-put supply V powers to fictitious load; Manual power switch SF2 is serially connected with between the input of described Switching Power Supply and single-phase alternating current; Described switching circuit comprises vacuum relay and toggle switch; The normally opened contact of described vacuum relay and described power resistor branch circuit parallel connection; The coil of described vacuum relay and the mutual series connection of normally closed switch of described toggle switch are between Switching Power Supply positive pole and negative pole.
5. voyage aid of the airport light organ fictitious load cabinet according to claim 4, is characterized in that described fictitious load also comprises Loading Control switch S F1; Described temperature detecting module adopts temperature switch BT; Described unloading protecting switch J0 adopts vacuum relay; The coil of described unloading protecting switch J0 and described temperature switch BT, the mutual series connection of described Loading Control switch S F1 are between Switching Power Supply positive pole and negative pole; The coil two ends of described unloading protecting switch J0 also and be connected with indicator light PG; The contact of described unloading protecting switch J0 is serially connected between voyage aid of the airport light organ one output and described fictitious load one end.
6. voyage aid of the airport light organ fictitious load cabinet according to claim 1, it is characterized in that when N equals 12, first power resistor branch road adopts rated power to be more than or equal to 25W, resistance is the power resistor R1 of 0.57 Ω, second power resistor branch road adopts rated power to be more than or equal to 50W, resistance is the power resistor R2 of 1.15 Ω, 3rd power resistor branch road adopts rated power to be more than or equal to 100W, resistance is the power resistor R3 of 2.30 Ω, 4th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R4 of 4.59 Ω, 5th power resistor branch road adopts rated power to be more than or equal to 200W, resistance is the power resistor R5 of 4.59 Ω, 6th power resistor branch road adopts rated power to be more than or equal to 500W, resistance is the power resistor R6 of 11.48 Ω, 7th power resistor branch road adopts rated power to be more than or equal to 1kW, resistance is the power resistor R7 of 22.96 Ω, 8th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R8 of 45.91 Ω, 9th power resistor branch road adopts rated power to be more than or equal to 2kW, resistance is the power resistor R9 of 45.91 Ω, the rated power of the tenth power resistor branch road is more than or equal to 5kW, resistance is 114.78 Ω, the rated power of the 11 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω, the rated power of the 12 power resistor branch road is more than or equal to 10kW, resistance is 229.56 Ω.
7. voyage aid of the airport light organ fictitious load cabinet according to claim 6, it is characterized in that the tenth power resistor branch road adopts power resistor R10a, R10b is mutually in series, and power resistor R10a, the rated power of R10b is all more than or equal to 2.5kW, resistance is 57.39 Ω, 11 power resistor branch road adopts power resistor R11a, R11b, R11c, R11d is mutually in series, and power resistor R11a, R11b, R11c, the rated power of R11d is all more than or equal to 2.5kW, resistance is 57.39 Ω, 12 power resistor branch road adopts power resistor R12a, R12b, R12c, R12d is mutually in series, and power resistor R12a, R12b, R12c, the rated power of R12d is all more than or equal to 2.5kW, resistance is 57.39 Ω.
8. voyage aid of the airport light organ fictitious load cabinet according to claim 1, the power resistor that the rated power that it is characterized in that included by power resistor branch road is more than or equal to 100W is coated by the alloy sleeve with U-shaped structure, and on described alloy sleeve outer wall, be formed with the alloy sheet of Spiral distribution.
9. voyage aid of the airport light organ fictitious load cabinet according to claim 1, is characterized in that described fictitious load cabinet also comprises the heat abstractor be arranged in cabinet.
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| CN201510666939.6A CN105263220B (en) | 2015-10-15 | 2015-10-15 | Voyage aid of the airport light organ fictitious load cabinet |
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| CN201510666939.6A CN105263220B (en) | 2015-10-15 | 2015-10-15 | Voyage aid of the airport light organ fictitious load cabinet |
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| CN105263220B CN105263220B (en) | 2017-11-24 |
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| CN105738852A (en) * | 2016-04-11 | 2016-07-06 | 江苏方天电力技术有限公司 | Tandem type open circuit-preventing current burden box |
| CN109164338A (en) * | 2018-07-20 | 2019-01-08 | 中国船舶重工集团公司第七O三研究所无锡分部 | A kind of high-power middle straightening with on-line monitoring function drains off formula load device |
| CN115639380A (en) * | 2022-12-23 | 2023-01-24 | 四川华丰科技股份有限公司 | Power simulator and simulation method |
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|---|---|
| CN105263220B (en) | 2017-11-24 |
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