CN102750857A - Somatosensory practical training circuit and device for ground protection of devices - Google Patents
Somatosensory practical training circuit and device for ground protection of devices Download PDFInfo
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- CN102750857A CN102750857A CN2012101881483A CN201210188148A CN102750857A CN 102750857 A CN102750857 A CN 102750857A CN 2012101881483 A CN2012101881483 A CN 2012101881483A CN 201210188148 A CN201210188148 A CN 201210188148A CN 102750857 A CN102750857 A CN 102750857A
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Abstract
The invention relates to a somatosensory practical training circuit and device for ground protection of devices. The somatosensory practical training circuit comprises a safety experiment power source formed by a distribution line and an isolation transformer (T) positioned at the tail end of the line. An auxiliary side of the isolation transformer (T) is connected with an electrical device (M) through a start contactor (JC1), and a casing of the electrical device is connected with a phase line through an impedance element (R1) for simulating generation of electric leakage and is connected with an auxiliary side neutral point of the isolation transformer (T) through a simulation ground connection branch circuit. The simulation ground connection branch circuit comprises a ground resistor (W1), a ground switch (JC2) and an ammeter which are in series connection with each other, and the casing of the electrical device and the auxiliary side neutral point of the isolation transformer (T) are in parallel connection with a voltmeter. The somatosensory practical training circuit and device can meet the requirements for device ground safety education and the safety training requirements of additionally installing leakage breakers on device power sources, enables a trainee himself to perform operation, and greatly improves safety protection consciousness of the trainee.
Description
Technical field
The present invention relates to the training of power industry safety and use analogue means, particularly a kind of equipment ground protective sense training set that is used for.
Background technology
The efficient operation of power grid security is one of target of electric power enterprise pursuit, ensures that the factor of electric power netting safe running has a lot of aspects, such as aspects such as personal management, equipment control, circuit operations.No matter how the advanced person still needs personnel to operate and control to equipment and technology after all, so personnel's training is seemed particularly important.Present safety education training is the explanation of knowwhy mostly, is aided with the relational graph courseware, and form is single, and process is uninteresting.Often there is great potential safety hazard in training through such even various accidents not according to working specification occur after on duty, and wherein major reason is exactly not have effectively to promote by standard person's safe production awareness.
In order to improve by standard personnel's awareness of safety; Only be that theory explaination is not enough; Need let is had deep impression by the standard personnel to safety problem; But,, also unlikelyly carry out the safety education training at the production run scene from electric power netting safe running and the consideration of trainee's personal safety angle between field condition restriction.
Summary of the invention
The purpose of this invention is to provide a kind of real standard of body sense circuit that is used for the equipment ground protection, do not have entity can supply operation and demonstration, the problem of result of training difference when having the safety education training now in order to solve.In addition, the present invention also provides a kind of real standard equipment of body sense that is used for the equipment ground protection.
For realizing above-mentioned purpose; Circuit arrangement of the present invention is: a kind of real standard of body sense circuit that is used for the equipment ground protection; Comprise the safety experiment power supply; The safety experiment power supply is made up of the isolating transformer (T) of distribution line and line end, and the secondary of isolating transformer (T) connects electrical equipment (M) through starting contactor (JC1); The electrical equipment shell is through being used to simulate an impedor (R1) the connection one phase circuit that electric leakage takes place; The electrical equipment shell connects said isolating transformer (T) secondary neutral point through an analogue ground branch road; This analogue ground branch road comprises stake resistance (W1), grounding switch (JC2) and the reometer of series connection, and electrical equipment shell and isolating transformer (T) secondary neutral point is parallel with voltage table.
Be connected with isolating switch (QF2) between isolating transformer (T) secondary and the starting contactor (QF3), isolating switch (QF2) is parallelly connected with an earth leakage protective device (QF3).
Also go here and there in the said analogue ground branch road and be provided with a switch that is used for manually stirring (K).
Said electrical equipment shell connects said isolating transformer (T) secondary neutral point through an auxiliary normally closed interlock of said starting contactor (JC1).
Said distribution line is provided with and is used for the self-locking on-off control circuit that break-make is controlled said starting contactor (JC1) and grounding switch (JC2).
Equipment scheme of the present invention is: a kind of real standard equipment of body sense that is used for the equipment ground protection; Its main circuit comprises the safety experiment power supply; The safety experiment power supply is made up of the isolating transformer (T) of distribution line and line end, and the secondary of isolating transformer (T) connects electrical equipment (M) through starting contactor (JC1); The electrical equipment shell is through being used to simulate an impedor (R1) the connection one phase circuit that electric leakage takes place; The electrical equipment shell connects said isolating transformer (T) secondary neutral point through an analogue ground branch road; This analogue ground branch road comprises stake resistance (W1), grounding switch (JC2) and the reometer of series connection, and electrical equipment shell and isolating transformer (T) secondary neutral point is parallel with voltage table; The said real standard equipment of body sense that is used for the equipment ground protection also comprises demonstration cabinet and operation cabinet, and said main circuit is installed in the demonstration cabinet, is provided with the control knob relevant with said main circuit in the said operation cabinet.
Said demonstration is covered with translucent cover cashier's office in a shop; Also be provided with the multimedia equipment that is used to show reometer and voltage table information in the said operation cabinet, multimedia equipment comprises PC, master control borad and display screen.
Be connected with isolating switch (QF2) between isolating transformer (T) secondary and the starting contactor (QF3), isolating switch (QF2) is parallelly connected with an earth leakage protective device (QF3); Said isolating switch (QF2) is installed in the demonstration cabinet with earth leakage protective device (QF3).
Also go here and there in the said analogue ground branch road and be provided with a switch that is used for manually stirring (K), the said switch of manually stirring (K) is arranged on the demonstration cabinet outside.
Be respectively equipped with on the said distribution line and be used for the self-locking on-off control circuit that break-make is controlled said starting contactor (JC1) and grounding switch (JC2); Said self-locking on-off control circuit is arranged in operation cabinet or the demonstration cabinet.
The present invention is the training on electric power system to be employed a kind of equipment of safety education training of new registration employee and old employee.In order to improve by standard personnel's awareness of safety, there is not danger again, the present invention proposes the training method of pseudo-experience.
To this training problem of equipment ground; The invention provides a kind of equipment ground and install leakage, breaking body sense equipment additional; Satisfying the safety training important and influential persons that equipment ground safety education and device power supply (DPS) install RCCB additional asks; The student can be operated in person; See the electric parameters in ground connection and earth-free difference and the associative operation process, can truly demonstrate electrical equipment ground integrity comparison procedure, RCCB safeguard protection effect is installed in the power supply of demonstration electrical equipment power supply additional; The trainee can intuitive operation observe equipment ground and install the importance of RCCB to the personal safe protection additional, to the security protection consciousness that improves the trainee bigger lifting will be arranged.
Description of drawings
Fig. 1 is a structured flowchart;
Fig. 2 is an electrical schematic diagram of the present invention;
Fig. 3 is control principle figure of the present invention;
Fig. 4 is the front elevation of demonstration cabinet;
Fig. 5 is the side view of demonstration cabinet.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed explanation.
Circuit embodiments
Like Fig. 1; Be used for the real standard of the body sense circuit of equipment ground protection, mainly provide ground protection relevant training, through showing the electric parameter of ground connection; Give the start-up and be familiar with intuitively, major loop comprises successively: safety experiment power supply, starting contactor JC1 and electrical equipment M.The safety experiment power supply is made up of the isolating transformer T of distribution line and line end, and the secondary of isolating transformer T connects electrical equipment M through starting contactor JC1; The electrical equipment shell connects a phase circuit through an impedor R1 who is used to simulate electric leakage and takes place; The electrical equipment shell connects isolating transformer T secondary neutral point through an analogue ground branch road; This analogue ground branch road comprises stake resistance W1, grounding switch JC2 and the reometer of series connection, and electrical equipment shell and isolating transformer T secondary neutral point are parallel with voltage table.Electrical equipment M adopts motor, also can adopt other electrical equipment to replace.
When training was demonstrated, JC2 was closed through the control grounding switch, realized the analogue ground (be actually and connect isolating transformer T secondary neutral point, assurance experiment safety) of shell.Under analogue ground and earth-free situation, corresponding demonstration ground voltage of voltage table and reometer and electric current.Under simulation electric leakage situation, when earth-free, voltage table shows 220V, voltage step-down under the ground connection situation.In addition, stake resistance W1 is an adjustable resistance, during ground connection, regulates its size, and reometer shows respective change.
Distribution line is provided with and is used for the self-locking on-off control circuit that break-make is controlled said starting contactor JC1 and grounding switch JC2, is mainly used in control JC1 and JC2, and control mode is more; Fig. 2 has provided a kind of concrete mode; Like Fig. 2 bottom left section, civil power connects two control branch roads from master switch J5, and one is electrical equipment control branch road (can form the JC1 self-locking); Another is ground connection control branch road (can form the JC2 self-locking); PC CS J1, J2, J3, J4, J5 and emergency stop switch etc. can be controlled the ground connection steering order, and physical circuit is seen figure, repeats no more at this.Distribution line connects civil power, and isolates and the transformation processing through isolating transformer T, guarantees the safety of experimental circuit.Isolating transformer T secondary side connects circuit breaker Q F2, and circuit breaker Q F2 is parallelly connected with an earth leakage protective device QF3.When electric leakage takes place, protection is provided, break off main circuit rapidly.Circuit breaker Q F2 is parallelly connected with earth leakage protective device QF3 to be to be used to demonstrate isolating switch with creepage protection function and the isolating switch that does not have creepage protection function, and the defencive function of isolating switch relatively when back grade of electrical equipment generation body leakage situation.
When earth-free, the electrical equipment shell connects said isolating transformer T secondary neutral point through the auxiliary normally closed interlock of said starting contactor JC1, so that extra protection to be provided.Voltage table is gathered this normally closed interlock voltage.
Like Fig. 3, the information of reometer and voltage table not only directly shows, also is connected to a master control borad through data line, and master control borad connects PC, and PC output connects display.Master control borad also sample auxiliary normally closed interlock connecting JC1 and the auxiliary normally closed interlock of grounding switch JC2, like Fig. 3 upper left, i.e. node L1, N1.Node L1 is provided with the auxiliary contact of JC1, JC2, J5 and the pilot lamp of corresponding series connection with N1, and pilot lamp is used to indicate JC1, JC2, J5 open and-shut mode, and L1, N1 status information send master control borad to.Like Fig. 3 lower part, master control borad has also connected the auxiliary contact that comprises circuit breaker Q F2, earth leakage protective device QF3 etc.
Apparatus embodiments
On the basis of above circuit; Various circuit components etc. are packed into respectively one demonstrate cabinet and an operation cabinet; Main circuit comprises isolating transformer, voltage table, reometer, earth leakage protective device, isolating switch; Be installed in the demonstration cabinet, be provided with the control knob relevant in the said operation cabinet with said main circuit.
Demonstration cabinet such as Fig. 4, shown in Figure 5, the road device 12 and voltage, electric current indicating instrument 13 and the electrical equipment M that comprise base cabinet 11 and be arranged in the base cabinet top, the student is observed are covered with translucent cover 14 on the base cabinet 11.The K switch of manually stirring is arranged on the demonstration cabinet outside, and the student can toggle switch K, experiences K switch and cooperates the situation of controlling ground connection with JC2.。In the operation cabinet multimedia equipment that is used to show reometer and voltage table information is installed, multimedia equipment comprises PC, master control borad and display screen.The self-locking type control branch road of control JC1 and JC2 is arranged in operation cabinet or the demonstration cabinet.
Can see the inner main circuit that comprises electrical equipment (motor), measurement instrument, isolating switch and earth leakage protective device, equipment ground device etc. of installing of demonstration cabinet from the outside; Electrical equipment (motor) ground wire trend can obviously be seen in the outside, can operate two kinds of isolating switchs.
Claims (10)
1. circuit is instructed in a body sense that is used for the equipment ground protection in fact; It is characterized in that; Comprise the safety experiment power supply; The safety experiment power supply is made up of the isolating transformer (T) of distribution line and line end, and the secondary of isolating transformer (T) connects electrical equipment (M) through starting contactor (JC1); The electrical equipment shell is through being used to simulate an impedor (R1) the connection one phase circuit that electric leakage takes place; The electrical equipment shell connects said isolating transformer (T) secondary neutral point through an analogue ground branch road; This analogue ground branch road comprises stake resistance (W1), grounding switch (JC2) and the reometer of series connection, and electrical equipment shell and isolating transformer (T) secondary neutral point is parallel with voltage table.
2. a kind of real standard of body sense circuit that is used for the equipment ground protection according to claim 1; It is characterized in that; Be connected with isolating switch (QF2) between isolating transformer (T) secondary and the starting contactor (QF3), isolating switch (QF2) is parallelly connected with an earth leakage protective device (QF3).
3. a kind of real standard of body sense circuit that is used for the equipment ground protection according to claim 1 is characterized in that, also goes here and there in the said analogue ground branch road and is provided with a switch that is used for manually stirring (K).
4. a kind of real standard of body sense circuit that is used for the equipment ground protection according to claim 1; It is characterized in that said electrical equipment shell connects said isolating transformer (T) secondary neutral point through an auxiliary normally closed interlock of said starting contactor (JC1).
5. a kind of real standard of body sense circuit that is used for the equipment ground protection according to claim 1 is characterized in that said distribution line is provided with and is used for the self-locking on-off control circuit that break-make is controlled said starting contactor (JC1) and grounding switch (JC2).
6. one kind is used for the real standard equipment of body sense that equipment ground is protected; It is characterized in that; Its main circuit comprises the safety experiment power supply; The safety experiment power supply is made up of the isolating transformer (T) of distribution line and line end, and the secondary of isolating transformer (T) connects electrical equipment (M) through starting contactor (JC1); The electrical equipment shell is through being used to simulate an impedor (R1) the connection one phase circuit that electric leakage takes place; The electrical equipment shell connects said isolating transformer (T) secondary neutral point through an analogue ground branch road; This analogue ground branch road comprises stake resistance (W1), grounding switch (JC2) and the reometer of series connection, and electrical equipment shell and isolating transformer (T) secondary neutral point is parallel with voltage table; The said real standard equipment of body sense that is used for the equipment ground protection also comprises demonstration cabinet and operation cabinet, and said main circuit is installed in the demonstration cabinet, is provided with the control knob relevant with said main circuit in the said operation cabinet.
7. a kind of real standard equipment of body sense that is used for the equipment ground protection according to claim 6 is characterized in that said demonstration is covered with translucent cover cashier's office in a shop; Also be provided with the multimedia equipment that is used to show reometer and voltage table information in the said operation cabinet, multimedia equipment comprises PC, master control borad and display screen.
8. a kind of real standard equipment of body sense that is used for the equipment ground protection according to claim 6; It is characterized in that; Be connected with isolating switch (QF2) between isolating transformer (T) secondary and the starting contactor (QF3), isolating switch (QF2) is parallelly connected with an earth leakage protective device (QF3); Said isolating switch (QF2) is installed in the demonstration cabinet with earth leakage protective device (QF3).
9. a kind of real standard equipment of body sense that is used for the equipment ground protection according to claim 6; It is characterized in that; Also go here and there in the said analogue ground branch road and be provided with a switch that is used for manually stirring (K), the said switch of manually stirring (K) is arranged on the demonstration cabinet outside.
10. a kind of real standard equipment of body sense that is used for the equipment ground protection according to claim 6; It is characterized in that, be respectively equipped with on the said distribution line and be used for the self-locking on-off control circuit that break-make is controlled said starting contactor (JC1) and grounding switch (JC2); Said self-locking on-off control circuit is arranged in operation cabinet or the demonstration cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188148.3A CN102750857B (en) | 2012-06-08 | 2012-06-08 | Somatosensory practical training circuit and device for ground protection of devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210188148.3A CN102750857B (en) | 2012-06-08 | 2012-06-08 | Somatosensory practical training circuit and device for ground protection of devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102750857A true CN102750857A (en) | 2012-10-24 |
| CN102750857B CN102750857B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210188148.3A Expired - Fee Related CN102750857B (en) | 2012-06-08 | 2012-06-08 | Somatosensory practical training circuit and device for ground protection of devices |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702141A (en) * | 2016-04-21 | 2016-06-22 | 国网江苏省电力公司职业技能训练基地 | Live trimming body feeling system |
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| JP2008191199A (en) * | 2007-02-01 | 2008-08-21 | Chugoku Electric Power Co Inc:The | Somesthetic type home electric facility simulator |
| CN201859584U (en) * | 2010-10-29 | 2011-06-08 | 河北省电力公司职业技术培训中心 | Cable fault simulation training device |
| CN102288862A (en) * | 2011-07-18 | 2011-12-21 | 山西潞安环保能源开发股份有限公司 | Electric leakage shutting detection circuit |
| CN202855147U (en) * | 2012-06-08 | 2013-04-03 | 郑州万特电气有限公司 | Somatosensory training circuit and equipment for equipment ground protection |
-
2012
- 2012-06-08 CN CN201210188148.3A patent/CN102750857B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008191199A (en) * | 2007-02-01 | 2008-08-21 | Chugoku Electric Power Co Inc:The | Somesthetic type home electric facility simulator |
| CN201859584U (en) * | 2010-10-29 | 2011-06-08 | 河北省电力公司职业技术培训中心 | Cable fault simulation training device |
| CN102288862A (en) * | 2011-07-18 | 2011-12-21 | 山西潞安环保能源开发股份有限公司 | Electric leakage shutting detection circuit |
| CN202855147U (en) * | 2012-06-08 | 2013-04-03 | 郑州万特电气有限公司 | Somatosensory training circuit and equipment for equipment ground protection |
Non-Patent Citations (3)
| Title |
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| 姚海彬: "《电工技术》", 30 July 2005, article "单相接地保护", pages: 305-306 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702141A (en) * | 2016-04-21 | 2016-06-22 | 国网江苏省电力公司职业技能训练基地 | Live trimming body feeling system |
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| CN102750857B (en) | 2014-04-23 |
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Address after: 450001 No. 38, box street, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee after: Zhengzhou Wonder Electrical Power Co., Ltd. Address before: High tech Development Zone, Henan 450001 road screen city of Zhengzhou Province, No. 15 Patentee before: ZhengZhou Wonder Electric Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20180608 |
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