CN201323436Y - Multifunctional three-phase protector - Google Patents
Multifunctional three-phase protector Download PDFInfo
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- CN201323436Y CN201323436Y CNU2008202353563U CN200820235356U CN201323436Y CN 201323436 Y CN201323436 Y CN 201323436Y CN U2008202353563 U CNU2008202353563 U CN U2008202353563U CN 200820235356 U CN200820235356 U CN 200820235356U CN 201323436 Y CN201323436 Y CN 201323436Y
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Abstract
The utility model discloses a multifunctional three-phase protector which comprises a linked switch, a current transformer, an electricity leakage processor, an electricity leakage control electromagnet, a current control electromagnet, a high voltage control relay, a low voltage control relay, a time delay controller and resisters. The input terminals of the low voltage control relay are connected with a zero line and any one of three phase lines respectively, and a first voltage adjusting resistor is connected with one of the input terminals in series. One end of the output terminal of the low voltage control relay passes through a current-limiting resistor and then is connected with any one of the three phase lines while the other end of the output terminal of the low voltage control relay is connected with the input terminal of the time delay controller. The output terminal of the time delay controller is connected with the input terminal of the electricity leakage control electromagnet. The protector integrates such functions as electricity leakage protection, low voltage protection, high voltage protection, current protection, open phase protection, phase sequence motion protection, lightning resistance and electricity stealing prevention, remote wired multi-site control, remote control and management over electricity consumption prepayment.
Description
Technical field
The utility model relates to a kind of improvement of three-phase electric leakage protector, and especially a kind of have a multi-functional three-phase protector.
Background technology
Existing three-phase electric leakage protector as shown in Figure 4, mainly comprises switch gearing K, instrument transformer LH, electric leakage processor XH1, electric leakage control electromagnet MK3; Switch series is connected among zero line N and phase line L1, L2 and the L3, the input of electric leakage processor XH1 joins with the coil two ends of instrument transformer LH respectively, one end of the output of electric leakage processor XH1 joins with electric leakage control electromagnet MK3 one end, the other end and the zero line N (perhaps any phase line) of electric leakage processor XH1 join, the other end and any phase line (perhaps zero line N) of electric leakage control electromagnet MK3 are joined, and electrical appliance D is connected on zero line N and phase line L1, L2, the L3.Under the normal condition, when electric current flows through instrument transformer LH, electric current flows through the phase line L1 of instrument transformer LH under the situation of output circuit leakproof, L2, the reversal of L3 and zero line and be 0, but, when wherein zero line N or any phase line are leaked electricity, induced current on the current transformer LH equals leakage current, the coil of current transformer LH is charged, signal is after electric leakage processor XH handles, make the output conducting (generally adopting thyristor circuit) of electric leakage processor XH, make electric leakage control electromagnet MK3 between zero line N and phase line L, form the loop, electric leakage control electromagnet MK3 work, the K switch suction is disconnected, and power supply circuits are cut off.This electric leakage protector can effectively prevent to hurt sb.'s feelings through the electric current electric leakage of K switch output, can also control the energy dissipation that the electrical appliance electric leakage is brought simultaneously.But this electric leakage protector is except this situation of leaking electricity can play protection safety, under the situation of other circuit abnormality; it can not play the effect of protection, and is too high or too low as circuit voltage, and electric current is excessive; the power supply phase shortage, phase sequence changes, situations such as super expense electricity.In addition, emergency arranged, need to close electricity but can not be near switch the time, it can not control the transmission of electricity circuit effectively when electricity consumption is indoor.
Summary of the invention
The utility model purpose is to overcome above-mentioned defective, and a kind of multi-functional three-phase protector that can both play a protective role during too high or too low and circuit abnormality when circuit voltage is provided.
Another purpose of the present utility model is: also can play a protective role when circuital current is too high.
Also purpose of the present utility model is: when electricity consumption is indoor emergency is arranged, need to close electricity but with can not be near switch the time, far distance controlled transmission of electricity contactor that can be artificial.
Also purpose of the present utility model is: also can control the transmission of electricity contactor when the super expense of user, manage automatically to reach electricity cost.
The utility model also has a purpose to be: can realize long-range wired single place or many places control switch K.
The technical solution of the utility model realizes: design a kind of multi-functional three-phase protector, comprise switch gearing K, current transformer LH, electric leakage processor XH1, electric leakage control electromagnet MK3, low-voltage control relay JR2 and delay controller JS; Switch series is connected on zero line N and phase line L1, L2, among the L3, the input of electric leakage processor XH1 joins with the coil two ends of current transformer LH respectively, one end of the output of electric leakage processor XH1 joins with electric leakage control electromagnet MK3 one end, the other end and the zero line N (perhaps any phase line) of electric leakage processor XH1 join, the other end and any phase line (perhaps zero line N) of electric leakage control electromagnet MK3 are joined, the input of described low-voltage control relay JR2 respectively with zero line N and three phase lines in any phase line join, be serially connected with the first voltage-regulation resistance R 2 therein in the input; Connect any phase line in three phase lines behind the one end process current-limiting resistance R1 of the output of described low-voltage control relay JR2, the other end of the output of described low-voltage control relay JR2 and delay controller JS input join, delay controller JS power supply connects instrument transformer LH rear end, delay controller JS output joins with the input of electric leakage control electromagnet MK3, under the normal situation of voltage, the output of described low-voltage control relay JR2 is in off-state.
As to improvement of the present utility model, the utility model also comprises the high voltage control relay JR3 and the second voltage-regulation resistance R 3, the input of described high voltage control relay JR3 respectively with zero line N and three phase lines in any phase line join, be serially connected with the second voltage-regulation resistance R 3 therein in the input; Connect any phase line in three phase lines behind the one end process current-limiting resistance R1 of the output of described high voltage control relay JR3, the other end and delay controller JS input join; Under the normal situation of voltage, the output of described high voltage control relay JR3 is in off-state.
As to further improvement of the utility model, the utility model also comprises infrared remote control receiver CTR, described infrared remote control receiver CTR output when receiving the power failure input signal, auto-closing.
As further improving to of the present utility model, the utility model also comprises the first Current Control electromagnet MK1, the described first Current Control electromagnet MK1 is connected among the first phase line L1, when the electric current in the circuit surpassed rated current, the described first Current Control electromagnet MK1 inhaled to disconnect and closes K.
As further improving to of the present utility model, the utility model also comprises the second Current Control electromagnet MK2, the described second Current Control electromagnet MK2 is connected among the second phase line L2, when the electric current in the circuit surpassed rated current, the described second Current Control electromagnet MK2 inhaled to disconnect and closes K.
As further improving to of the present utility model, the utility model also comprises phase shortage or phase shift processing relay J R1, the input that relay J R1 is handled in described phase shortage or phase shift meets the first phase line L1, the second phase line L2 and third phase line L3 respectively, its output one termination delay controller JS input, the other end were connected through connecing any phase line in three phase lines behind the current-limiting resistance R1.
As further improving to of the present utility model, the utility model also comprises pre-paying kilowatt-hour meter signal processor XH2, output one termination of described pre-paying kilowatt-hour meter signal processor XH2 connects delay controller JS input, connects any phase line in three phase lines behind the other end process current-limiting resistance R1; Described input termination pre-paying kilowatt-hour meter DDSY.
The utility model collection creepage protection function, under-voltage protection function, high voltage protection function, current protecting function, lightning protection electric work energy, power supply open-phase protection function; phase sequence moves defencive function; long-range wired controlled function; remote control function of use and pre-payment electricity charge controlled function have the advantage of kinds of protect function in one.
Description of drawings
Fig. 1 is the circuit theory schematic diagram of a kind of embodiment of the utility model.
Principle schematic when Fig. 2 is the utility model mesolow control relay operate as normal.
Principle schematic when Fig. 3 is the utility model mesohigh control relay operate as normal.
Fig. 4 is the circuit theory schematic diagram of existing electric leakage protector.
Embodiment
Illustrate: K, switch (interlock); LH, current transformer; XH1, electric leakage processor; XH2, pre-payment electric signal processor; MK1, the first Current Control electromagnet; MK2, the second Current Control electromagnet; MK3, electric leakage control electromagnet; Relay is handled in JR1, phase shortage and phase shift; JR2, low-voltage control relay; JR3, high voltage control relay; CTR, infrared remote control receiver (model can be CDT401-1); D, electrical appliance; DDSY, pre-paying kilowatt-hour meter; R1, current-limiting resistance; R2, the first voltage-regulation resistance (being preferably adjustable resistance); R3, the second voltage-regulation resistance (being preferably adjustable resistance); JS, delay controller; K2, K3, K4......Kn be long-range line control switch.
See also Fig. 1, Fig. 1 is a kind of multi-functional three-phase protector with disclosing, comprises switch gearing K, current transformer LH, electric leakage processor XH1, electric leakage control electromagnet MK3, low-voltage control relay JR2 and delay controller JS; Switch series is connected on zero line N and phase line L1, L2, among the L3, the input of electric leakage processor XH1 joins with the coil two ends of current transformer LH respectively, one end of the output of electric leakage processor XH1 joins with electric leakage control electromagnet MK3 one end, the other end and the second phase line L2 of electric leakage processor XH1 join (in fact this end also can with zero line N, perhaps with remaining other two phase lines in any phase line join, if this termination zero line N of electric leakage processor XH1, then the other end of electric leakage control electromagnet MK3 is then taken over phase line of meaning, in a word as long as can form a loop at electric leakage processor XH1 and electric leakage control electromagnet MK3, referring to following content), the other end and the zero line N of the electric leakage control electromagnet MK3 (other end connecting to neutral line N of processor XH1 that joins if leak electricity, then this end of electric leakage control electromagnet MK3 is just answered phase-connecting wire, constitute the loop), the input of described low-voltage control relay JR2 joins with the zero line N and the second phase line L2 respectively (certainly, also can with other two phase lines in any one join), among the input of low-voltage control relay JR2, be serially connected with the first voltage-regulation resistance R 2 (certainly, the first voltage-regulation resistance R 2 also can be gone here and there in another input); It is (same to meet third phase line L3 behind the one end process current-limiting resistance R1 of the output of described low-voltage control relay JR2, also can connect other phase line), the other end of the output of described low-voltage control relay JR2 and delay controller JS input join, delay controller JS output and electric leakage processor XH1 join with electric leakage control electromagnet MK3 common port, under the normal situation of voltage, the output of described low-voltage control relay JR2 is in off-state.Serial connection one is long-range between current-limiting resistance R1 and delay controller JS input a line control switch K2, and this is long-range to have line control switch K2 to extend to the outer any desired location of switch body with lead, carries out the control to K switch.If want promptly to turn off mains switch K, can long-rangely there be line control switch K3, K4......Kn line control switch K2 use in parallel to be arranged with a plurality of with long-range at diverse geographic location.In use, the power supply of described delay controller JS preferably is connected on the tail end of K switch, and like this, when the utility model was not worked, entire circuit just can not be charged.
In conjunction with seeing also Fig. 2, the principle schematic when Fig. 2 is the utility model mesolow control relay operate as normal.Low voltage control relay J R2 in the present embodiment is one 5 pin relay, and wherein two pin are input pin, also is two inputs of relay line bag; Other three pin are output, and its 1st pin is open end, and the 2nd pin is the work pin, and the 3rd pin is the normality pin.This relay is when its line bag no power, the 1st pin of its output pin and the 3rd pin are communicated with (state when dispatching from the factory) by armature 4, when relay line bag is switched on, when the magnetic force of line packet generation is enough, armature 4 can be attracted to come, the 1st pin and the 2nd pin of output are communicated with, change the state of relay.What the low voltage control relay J R2 in the present embodiment used is the 1st pin and the 3rd pin of relay, wherein meets third phase line L3 behind the 3rd pin process current-limiting resistance R1, and the 1st pin connects the input of delay controller JS, the 2nd pin free time; Voltage just often in circuit, the line bag of described low voltage control relay J R2 attracts armature 4 to come, the 1st pin and the 2nd pin of output are communicated with, and the 1st pin and the 3rd pin disconnect, the suction of the line bag of the low voltage control relay J R2 in the present embodiment can be determined by the size of regulating the first voltage-regulation resistance R 2; Brownout in circuit, be lower than predetermined value, in the time of can not making threephase motor D work, the suction of the line bag of low-voltage control relay JR2 then is not enough to hold armature 4, and armature 4 meeting auto-closings make the 1st pin and the 3rd pin conducting of low-voltage control relay JR2, at this moment, after electric leakage control electromagnet MK3 flows to zero line N, electric leakage control electromagnet MK3's electric current works via current-limiting resistance R1, and power supply circuits are cut off by K switch.Play the under-voltage protection effect.
In conjunction with seeing also Fig. 3, the principle schematic when Fig. 3 is the utility model mesohigh control relay operate as normal.The utility model also comprises the high voltage control relay R3 and the second voltage-regulation resistance R 3, and the input of described high voltage control relay JR3 joins with zero line N or phase line respectively, is serially connected with the second voltage-regulation resistance R 3 in the input that joins with zero line; Output the 2nd pin of described high voltage control relay JR3 meets third phase line L3 behind current-limiting resistance R1, the 1st pin and delay controller JS input join; Under the normal situation of voltage, the output of described high voltage control relay JR3 is in off-state.High voltage control relay JR3 in the present embodiment uses is relay with low-voltage control relay JR2 same model, but, the 2nd pin of the output of high voltage control relay JR3 connects and meet third phase line L3 behind current-limiting resistance R1, the 1st pin connects the input of delay controller JS, the 3rd pin free time, voltage just often in the line, armature 4 among the high voltage control relay JR3 is in the normal state, be that armature 4 is communicated with the 1st pin and the 3rd pin, and when the height of the voltage in the circuit arrives setting voltage (as thunderbolt), high voltage control relay JR3 can attract armature 4 to come, and makes the 1st pin and the 2nd pin closure of high voltage control relay JR3, at this moment, electric current in the circuit via current-limiting resistance R1 after, flow to zero line N through electric leakage control electromagnet MK3 again, electric leakage control electromagnet MK3 work, power supply circuits are cut off by K switch.After preventing effectively that line voltage from raising, high voltage is to the damage of power consumption equipment.
Among Fig. 1, the utility model also comprises infrared remote control receiver CTR, one end of described infrared remote control receiver CTR output phase-connecting wire L3 behind current-limiting resistance R1, another termination delay controller JS input, after remote-controlled receiver CTR (that use in the present embodiment is the remote-controlled receiver CTR of model as CDT401-1) receives the instruction that has a power failure, its output closure, electric current via current-limiting resistance R1 after, flow to zero line N through electric leakage control electromagnet MK1 again, electric leakage control electromagnet MK1 work, power supply circuits are cut off by K switch.In this case, hazardous gas such as coal gas is arranged or fire is arranged, have the water can not be near mains switch when indoor, and when needing emergency power off again, remote control can as cutting off the electricity supply fast and effectively in the 200M scope, be guaranteed property and life security under the dangerous situation at preset distance.
Among Fig. 1, the utility model also comprises Current Control electromagnet MK1 and Current Control electromagnet MK2, described Current Control electromagnet MK1 and Current Control electromagnet MK2 are connected on respectively among the first phase line L1 and the second phase line L2, when the electric current of the phase line L1, the L2 that flow through Current Control electromagnet MK1 or Current Control electromagnet MK2 surpassed rated current, described Current Control electromagnet MK1 and/or Current Control electromagnet MK2 inhaled to disconnect and close K.Play when avoiding to overload because of electric current effect to the damage of electric power system.
Among Fig. 1, the utility model also comprises phase shortage or phase shift processing relay J R1, the input that relay J R1 is handled in described phase shortage or phase shift meets the first phase line L1, the second phase line L2 and third phase line L3 respectively, its output one termination delay controller JS input, the other end were connected through meeting third phase line L3 (also can connect other phase line) behind the current-limiting resistance R1.It is commercially available electronic relay that relay J R1 is handled in phase shortage in the present embodiment or phase shift.When the circuit phase shortage or during phase shift, the output closure of relay J R1 is handled in phase shortage or phase shift, electric current via current-limiting resistance R1 after, flow to zero line N through delayer JS again, electric leakage control electromagnet MK3 work, power supply circuits are cut off by K switch.The various fire incidents that can prevent effectively that the phase shortage phenomenon from damaging motor and cause because of electrical fault can also prevent to change device damage and the personnel's injury (as: row crane, electric block, lathe etc.) that the rear motor counter-rotating is brought because of the power supply phase sequence simultaneously.
Among Fig. 1, the utility model also comprises pre-paying kilowatt-hour meter signal processor XH2, it includes sample circuit and switching circuit (being made up of thyristor and peripheral cell thereof), the output one termination delay controller JS input of described pre-paying kilowatt-hour meter signal processor XH2 meets third phase line L3 behind the other end process current-limiting resistance R1; Described input can join with pre-paying kilowatt-hour meter DDSY, when the electricity charge that prestore of pre-paying kilowatt-hour meter DDSY use up, pre-paying kilowatt-hour meter DDSY gives signal of pre-payment electric signal processor XH2, this signal is after sampling is amplified, the control switch closing of circuit, make the conducting of pre-paying kilowatt-hour meter signal processor XH2 output, thereby make electric leakage control electromagnet MK3 work, power supply circuits are cut off by K switch.Like this, can carry out and fill expense back electricity consumption earlier, be the power supply department amount of lightening one's labor, can also seal its leading portion of this switch simultaneously, form strong electricity anti-theft system.
Claims (9)
1, a kind of multi-functional three-phase protector comprises switch gearing (K), current transformer (LH), electric leakage processor (XH1), electric leakage control electromagnet (MK3); Switch series is connected on zero line (N) and phase line (L1, L2 and L3) among, the input of electric leakage processor (XH1) joins with the coil two ends of current transformer (LH) respectively, one end of the output of electric leakage processor (XH1) joins with electric leakage control electromagnet (MK3) end, the other end of electric leakage processor (XH1) joins with zero line (N) or any phase line, the other end of electric leakage control electromagnet (MK3) joins with any phase line or zero line N, it is characterized in that, also comprise low-voltage control relay (JR2) and delay controller (JS), the input of described low-voltage control relay (JR2) respectively with zero line (N) and three phase lines in any phase line join, be serially connected with the first voltage-regulation resistance (R2) therein in the input; Connect any phase line in three phase lines behind the one end process current-limiting resistance (R1) of the output of described low-voltage control relay (JR2), the other end of the output of described low-voltage control relay (JR2) and delay controller (JS) input join, delay controller (JS) output joins with the input of electric leakage control electromagnet (MK3), under the normal situation of voltage, the output of described low-voltage control relay (JR2) is in off-state.
2, multi-functional three-phase protector according to claim 1, it is characterized in that, also comprise the high voltage control relay (JR3) and the second voltage-regulation resistance (R3), the input of described high voltage control relay (JR3) respectively with zero line (N) and three phase lines in any phase line join, be serially connected with the second voltage-regulation resistance (R3) therein in the input; Connect any phase line in three phase lines behind the one end process current-limiting resistance (R1) of the output of described high voltage control relay (JR3), the other end and delay controller (JS) input joins; Under the normal situation of voltage, the output of described high voltage control relay (JR3) is in off-state; The output of described high voltage control relay (JR3) is in closure state when voltage raises.
3, multi-functional three-phase protector according to claim 1 and 2, it is characterized in that, also comprise infrared remote control receiver (CTR), one end of described infrared remote control receiver (CTR) output is by connecing any phase line in three phase lines after current-limiting resistance (R1), another termination delay controller (JS) input, when remote controller receives the power failure input signal, described infrared remote control receiver (CTR) output closure.
4, multi-functional three-phase protector according to claim 3, it is characterized in that, also comprise the first Current Control electromagnet (MK1), the described first Current Control electromagnet (MK1) is connected among first phase line (L1), when the electric current in the circuit surpassed rated current, the described first Current Control electromagnet (MK1) was inhaled to disconnect and is closed (K).
5, multi-functional three-phase protector according to claim 4, it is characterized in that, also comprise the second Current Control electromagnet (MK2), the described second Current Control electromagnet (MK2) is connected among second phase line (L2), when the electric current in the circuit surpassed rated current, the described second Current Control electromagnet (MK2) was inhaled to disconnect and is closed (K).
6, multi-functional three-phase protector according to claim 5, it is characterized in that, also comprise phase shortage or phase shift processing relay (JR1), the input that relay (JR1) is handled in described phase shortage or phase shift connects first phase line (L1), second phase line (L2) and third phase line (L3) respectively, its output one termination delay controller (JS) input, the other end is by connecing any phase line in three phase lines after current-limiting resistance (R1).
7, multi-functional three-phase protector according to claim 6, it is characterized in that, also comprise pre-paying kilowatt-hour meter signal processor (XH2), output one termination of described pre-payment electric signal processor (XH2) connects delay controller (JS) input, connects any phase line in three phase lines behind the other end process current-limiting resistance (R1); Described input termination pre-paying kilowatt-hour meter (DDSY).
8, multi-functional three-phase protector according to claim 7 is characterized in that, also includes the long-range line control switch (K2) that has, and described long-rangely have between the input that line control switch (K2) is connected on current-limiting resistance (R1) and delay controller (JS).
9, multi-functional three-phase protector according to claim 7, it is characterized in that, also include the long-range line control switch that has, described long-rangely have between the input that line control switch is connected on current-limiting resistance and delay controller, and described long-range line control switch is arranged is that switch by a plurality of switch in parallel constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202353563U CN201323436Y (en) | 2008-12-22 | 2008-12-22 | Multifunctional three-phase protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202353563U CN201323436Y (en) | 2008-12-22 | 2008-12-22 | Multifunctional three-phase protector |
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| Publication Number | Publication Date |
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| CN201323436Y true CN201323436Y (en) | 2009-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202353563U Expired - Fee Related CN201323436Y (en) | 2008-12-22 | 2008-12-22 | Multifunctional three-phase protector |
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| CN (1) | CN201323436Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297492A (en) * | 2010-05-27 | 2011-12-28 | 三洋电机株式会社 | Air conditioner |
| CN102455390A (en) * | 2010-10-27 | 2012-05-16 | 约克（无锡）空调冷冻设备有限公司 | Phase sequence detection circuit, control board and phase sequence protection device |
-
2008
- 2008-12-22 CN CNU2008202353563U patent/CN201323436Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297492A (en) * | 2010-05-27 | 2011-12-28 | 三洋电机株式会社 | Air conditioner |
| CN102297492B (en) * | 2010-05-27 | 2014-02-19 | 三洋电机株式会社 | Air conditioner |
| CN102455390A (en) * | 2010-10-27 | 2012-05-16 | 约克（无锡）空调冷冻设备有限公司 | Phase sequence detection circuit, control board and phase sequence protection device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20101222 |