CN2195151Y - Middle and large motor protector - Google Patents
Middle and large motor protector Download PDFInfo
- Publication number
- CN2195151Y CN2195151Y CN 94205924 CN94205924U CN2195151Y CN 2195151 Y CN2195151 Y CN 2195151Y CN 94205924 CN94205924 CN 94205924 CN 94205924 U CN94205924 U CN 94205924U CN 2195151 Y CN2195151 Y CN 2195151Y
- Authority
- CN
- China
- Prior art keywords
- lead
- wire
- connects
- resistance
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
The utility model relates to a middle and large motor protector. A protector is connected with the contact of a motor in series. The secondary coil of a step down transformer is connected with a bridge rectifier circuit, a regulation circuit, a warning circuit and three groups of optocouplers. The middle and large motor protector has the advantages of wide protection range for motors and high sensitivity.
Description
The utility model relates to motor protecter.
Motor protecter protection range of the prior art is little, and capacity is restricted, and sensitivity is low.
The utility model provides a kind of protector that can be suitable for medium-and-large-sized motor.
The purpose of this utility model realizes by following measure; lead-in wire connects fuse FU3 between two power lines of this protector; the relay normally open contact KA2-1 of relay K A and series connection and relay normally open contact KA3-1; the normal opened contact KM-1 of power line one end series electric motor operation contactor coil; primary coil of fuse FU1 and transformer TC; the input of paying coil one termination bridge rectifier QL of transformer TC; connect another input of bridge rectifier QL behind its other end series electrical source switch SA and the fuse FU2; from two outputs of the bridge rectifier lead-in wire indicator light HL1 that is connected in parallel respectively; capacitor C 1; capacitor C 2; the pin one of capacitor C 2 one termination integrated regulator IC1; its pin 3 connects capacitor C 2 other ends; be connected lead-in wire 1 and lead-in wire 2 respectively from pin two and pin 3; connect capacitor C 3 between two lead-in wires; lead-in wire connects the resistance R 1 of series connection between two lead-in wires; half adjustable resistance RP1 and capacitor C 4; the two ends of capacitor C 4 connect relay normally open contact KA1-1; lead-in wire 1 connects pin 4 and the pin 8 of delay integrated circuit IC2; lead-in wire 2 connects its pin one; lead-in wire 2 connects the pin 5 that connects integrated circuit (IC) 2 after the capacitor C 5; its pin two and pin 6 connect half adjustable resistance RP1, one end; its pin 3 connects triode V9 base stage; the emitter of triode V9 connects lead-in wire 1 after connecting resistance R 2; its collector electrode connects lead-in wire 2 after connecting resistance R 13; its collector terminal connects the control utmost point of controllable silicon V7; the negative electrode of controllable silicon V7 connects lead-in wire 2; its anode connects lead-in wire 1 after meeting relay K A1 in parallel and diode V1; lead-in wire 1 is at relay K A1 end series connection normal opened contact KA1-2; the lead-in wire 1 and the connection indicator light HL2 between 2 that goes between; the resistance R 3 that connects series connection between two lead-in wires; half adjustable resistance RP2 and photodiode LED1; lead-in wire 1 connects resistance R 4; resistance R 4 connects lead-in wire 2 after meeting photodiode LED1; connect triode V4 base stage behind resistance R 4 one terminating resistor R10 and the half adjustable resistance RP5; connect lead-in wire 1 behind the collector electrode connecting resistance R5 of diode; connect lead-in wire 2 behind its emitter connecting resistance R14; the electric whistle D that connects series connection between two lead-in wires; normally closed contact KA3-2; reset button SB and controllable silicon V8; the control utmost point of controllable silicon V8 connects the emitter of triode V4; electric whistle D indicator light HL3 in parallel; the resistance R 6 that connects series connection between two lead-in wires; half adjustable resistance RP3 and photodiode LED2; the resistance R 7 that lead-in wire 1 connects connects lead-in wire 2 after meeting photodiode LED2; resistance R 7 one terminating resistor R11; connect the base stage of triode V5 behind the resistance R 11 series connection half adjustable resistance RP6; the emitter of triode V5 connects lead-in wire 2; connect lead-in wire 1 behind the collector electrode parallel diode V2 of triode V5 and the relay K A2, resistance R 8; the branch circuit two ends of half adjustable resistance RP4 and photodiode LED3 series connection connect lead-in wire 1 and lead-in wire 2 respectively.Connect the base stage of triode V6 behind resistance R 9 one terminating resistor R12 and the half adjustable resistance RP7, the collector electrode of triode V6 connects lead-in wire 1 after meeting diode connected in parallel V3 and relay K A3, its emitter connects lead-in wire 2, and the operation contactor coil KM of motor connects with the normal opened contact of relay K A.
The end of load motor operation contactor coil KM connects normal opened contact KA-1.
This protector uses the 220V AC power, and circuit is connected with the normal opened contact KM-1 of controlled motor operation contactor, and purpose is in order to have only controlled motor rotation, just this protector has.Fuse FU1 prevents that step-down transformer from opening circuit, and fuse R2 prevents load cut-off.Electric current is a direct current through bridge rectifier, through indicator light HL1, capacitor C 1 and capacitor C 2 to three terminal regulator IC1, burning voltage is provided,, makes the heavy current impact of this device when half adjustable resistance RP1, resistance R 1 and charging capacitor C4 miss load starting through capacitor C 2 and delay integrated circuit IC2.Delay integrated circuit IC2 triggers controllable silicon V7; make relay K A1 adhesive, contact KA1-2 closure is sent electricity for circuit, and indicator light HL2 is bright; photodiode group (optocoupler) LED1 shows current value; photodiode ended when electric current was improper, and triode V4 conducting triggers controllable silicon V8; make alarm lamp HL3 bright; button SB is a reset button, and contact KA3-2 is the contact of error protection KA3, in order that alarm release during fault trip.The 3rd group of optocoupler is when electric current surpasses improper district (arrival faulty section), and photodiode LED3 ends, triode V6 conducting; relay K A3 adhesive, contact KA3-1 closure, relay K A closure; contact KA-1 contact is opened, and makes the motor outage, plays a protective role.
Narrate below in conjunction with drawings and Examples.
Fig. 1 is a circuit diagram of the present utility model.
Fig. 2 is the relay that links to each other with motor and the connection layout of contact.
With reference to accompanying drawing is an embodiment of the present utility model, and its structure as mentioned above.Wherein integrated regulator IC1 is 7815 type integrated packages, and delay integrated circuit IC2 is 555 type integrated packages.
This protector is suitable for medium-and-large-sized motor, and protection range is big, and is highly sensitive.
Claims (2)
1; a kind of protector that is used in medium-and-large-sized motor; it is characterized in that lead-in wire connects fuse FU3 between two power lines; the relay normally open contact KA2-1 of relay K A and series connection and relay normally open contact KA3-1; the normal opened contact KM-1 of power line one end series electric motor operation contactor coil; primary coil of fuse FU1 and transformer TC; the input of paying coil one termination bridge rectifier QL of transformer TC; connect another input of bridge rectifier QL behind its other end series electrical source switch SA and the fuse FU2; from two outputs of the bridge rectifier lead-in wire indicator light HL1 that is connected in parallel respectively; capacitor C 1; capacitor C 2; the pin one of capacitor C 2 one termination integrated regulator IC1; its pin 3 connects capacitor C 2 other ends; be connected lead-in wire 1 and lead-in wire 2 respectively from pin two and pin 3; connect capacitor C 3 between two lead-in wires; lead-in wire connects the resistance R 1 of series connection between two lead-in wires; half adjustable resistance RP1 and capacitor C 4; the two ends of capacitor C 4 connect relay normally open contact KA1-1; lead-in wire 1 connects pin 4 and the pin 8 of delay integrated circuit IC2; lead-in wire 2 connects its pin one; lead-in wire 2 connects the pin 5 that connects integrated circuit (IC) 2 after the capacitor C 5; its pin two and pin 6 connect half adjustable resistance RP1, one end; its pin 3 connects triode V9 base stage; the emitter of triode V9 connects resistance R 2 back lead-in wires 1; its collector electrode connects lead-in wire 2 after connecting resistance R 13; its collector terminal connects the control utmost point of controllable silicon V7; the negative electrode of controllable silicon V7 connects lead-in wire 2; its anode connects lead-in wire 1 after meeting relay K A1 in parallel and diode V1; lead-in wire 1 is at relay K A1 end series connection normal opened contact KA1-2; the lead-in wire 1 and the connection indicator light HL2 between 2 that goes between; the resistance R 3 that connects series connection between two lead-in wires; half adjustable resistance RP2 and photodiode LED1; lead-in wire 1 connects resistance R 4; resistance R 4 connects lead-in wire 2 after meeting photodiode LED1; connect triode V4 base stage behind resistance R 4 one terminating resistor R10 and the half adjustable resistance RP5; connect lead-in wire 1 behind the collector electrode connecting resistance R5 of diode; connect lead-in wire 2 behind its emitter connecting resistance R14; the electric whistle D that connects series connection between two lead-in wires; normally closed contact KA3-2; reset button SB and controllable silicon V8; the control utmost point of controllable silicon V8 connects the emitter of triode V4; electric whistle D indicator light HL3 in parallel; the resistance R 6 that connects series connection between two lead-in wires; half adjustable resistance RP3 and photodiode LED2; the resistance R 7 that lead-in wire 1 connects connects lead-in wire 2 after meeting photodiode LED2; resistance R 7 one terminating resistor R11; connect the base stage of triode V5 behind the resistance R 11 series connection half adjustable resistance RP6; the emitter of triode V5 connects lead-in wire 2; connect lead-in wire 1 behind the collector electrode parallel diode V2 of triode V5 and the relay K A2, resistance R 8; the branch circuit two ends of half adjustable resistance RP4 and photodiode LED3 series connection connect lead-in wire 1 and lead-in wire 2 respectively.Connect the base stage of triode V6 behind resistance R 9 one terminating resistor R12 and the half adjustable resistance RP7, the collector electrode of triode V6 connects lead-in wire 1 after meeting diode connected in parallel V3 and relay K A3, its emitter connects lead-in wire 2, and the operation contactor coil KM of motor connects with the normal opened contact of relay K A.
2, motor protecter according to claim 1 is characterized in that the end of motor operation contactor coil KM is connected in series normally closed contact KA-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205924 CN2195151Y (en) | 1994-03-29 | 1994-03-29 | Middle and large motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205924 CN2195151Y (en) | 1994-03-29 | 1994-03-29 | Middle and large motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2195151Y true CN2195151Y (en) | 1995-04-19 |
Family
ID=33824718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94205924 Expired - Fee Related CN2195151Y (en) | 1994-03-29 | 1994-03-29 | Middle and large motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2195151Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110800731A (en) * | 2019-10-18 | 2020-02-18 | 阜阳师范大学 | Intelligent driving device based on statistics |
-
1994
- 1994-03-29 CN CN 94205924 patent/CN2195151Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110800731A (en) * | 2019-10-18 | 2020-02-18 | 阜阳师范大学 | Intelligent driving device based on statistics |
| CN110800731B (en) * | 2019-10-18 | 2021-07-23 | 阜阳师范大学 | Intelligent driving device based on statistics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2195151Y (en) | Middle and large motor protector | |
| CN2165559Y (en) | Motor protector | |
| CN2296014Y (en) | Multifunctional A.C. wattmeter | |
| CN2653521Y (en) | Phase-loss detection circuit for power supply grid | |
| CN219142983U (en) | Power consumption information acquisition terminal joint debugging device | |
| CN2200248Y (en) | Automatic protector of low voltage electrifield wire netting controlled by computer | |
| CN2160153Y (en) | Fusing alarm for fuse | |
| CN2189783Y (en) | Three-phase protecting AC contactor | |
| CN2200185Y (en) | Terminal box for single phase electric energy meter | |
| CN2172540Y (en) | Whole-function protecting energy saving switch for electrical machine and loom | |
| CN108808662B (en) | Fixed dual-output power supply capable of automatically identifying input voltage | |
| CN2240799Y (en) | Phase-loss protector | |
| CN2164605Y (en) | Phase-loose protector | |
| CN2355487Y (en) | Electronic motor protector | |
| CN2239673Y (en) | Phase sequence relay having automatic phase changing | |
| CN2134739Y (en) | General phase loss leakage protector | |
| CN2305750Y (en) | AC contactor phase-defect protector | |
| CN2443518Y (en) | Heat overload protective electronic relay | |
| CN2350865Y (en) | Four-pole switch for electric appliance | |
| CN2075835U (en) | Suspension automatic star-triangle starter | |
| CN2129994Y (en) | Micro power consumption phase interruption protector | |
| CN2658995Y (en) | Motor thermal protector | |
| CN2348484Y (en) | Fuse with indicating function | |
| CN2134731Y (en) | Protective means for solid-state relay | |
| CN2245814Y (en) | General leakage protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |