TW199231B - - Google Patents

Description

Λ 6 Π 6

Printed by the Central Bureau of Economic Affairs, Ministry of Economic Affairs, Beigong Consumer Cooperatives. Mii9 ^ 3I 5. Description of the invention (3) The present invention is related to a protection system for accidental faults of distribution lines, which can pass the fault current flowing through the distribution lines due to unexpected faults Cut off or reduce. In a distribution line, in order to prevent the money circuit from burning out when a certain short circuit fault or a certain ground short circuit fault occurs, a circuit breaker (CB) and a circuit breaker are currently installed in the substation Overcurrent relay (OCR) used to drive this circuit breaker. However, in order for the circuit breaker in the substation to operate only after the overcurrent relay on the customer's end has operated, the operating speed of the overcurrent relay must be low. Generally, the overcurrent relay is designed to open the circuit breaker after 0.2 seconds after the fault current occurs. Therefore, during the delay period, before the circuit breaker in the substation is activated, since a large amount of fault current flows through the distribution line, the distribution circuit is likely to be broken or melted. Once the distribution line breaks, it will take a long time to restore the power, and it has always been expected that the power interruption time should be shortened as much as possible. In addition, in the known distribution line protection system, a current transformer (CT) is generally used as a sensor for detecting fault current. It is worth noting that the current transformer is very sensitive to external noise, which makes it possible for a fault judgment circuit to generate an erroneous signal and cause its overcurrent relay to operate erroneously. This obviously causes improper power interruption. Moreover, when the insulation properties of the current comparator deteriorate, or when the current breakdown of the current transformer occurs, the integrated distribution system may not function properly. In the known substations, a fault detection unit like a current transformer (CT) and a grounding transformer (GPT) is located on the secondary side of the circuit breaker, and the disconnection (please read first, please note Matter #Fill in this book. Binding and binding. The paper size is used in a S home standard (CNS) T4 specification (210X297 mm) 81. 7. 20,000¾ (I!) 3 (revised page) 199231 Λ 6 η 6 (Ministry of Economic Affairs, Ministry of Economic Affairs, β-Consumer Cooperative, Innu V. Invention Bell) The device is pseudo-controlled by a protection relay that detects line faults based on the detection signal generated by the fault detection unit. However, from the occurrence of the fault to the opening of the circuit breaker, it needs 10-12 cycles at the commercial frequency (about 50 seconds under the 50/60 Hz) system. Therefore, when the fault current caused by the lightning surge generates an arc discharge on the circuit, not only the above-mentioned line breakage but also the device connected to the money path will be damaged to a considerable extent before the circuit breaker is opened. The first objective of the present invention is to provide a novel and practical protection system for accidental faults in distribution lines, which can detect the fault current at a very high speed when a short-circuit fault or a ground short-circuit fault is detected in a distribution line It is extinguished or lowered to solve the above-mentioned conventional problems and to prevent the distribution line from breaking or melting due to the arc of the fault current. The second object of the present invention is to provide a power distribution line protection system, in which the power distribution system can still operate normally even if the dielectric breakdown of the fault current sensor has occurred, and the fault judgment circuit will not Due to erroneous work due to external noise, and in the event of a fault, the distribution line will be reliably protected from the arc generated by the fault current. The third object of the present invention is to provide a distribution line protection system, which can quickly interrupt or reduce the fault current before the circuit breaker in the substation is opened, so that the distribution line is protected from harm The fault current makes the power interruption time caused by the opening of the circuit breaker in the substation extremely short. The fourth object of the present invention is to provide a distribution line protection system, in which a protective circuit breaker can be operated at any time to separate the system from the distribution line (please read the back-end notes # 项 立 页) Line i This paper standard is easy to use because of the difficulties in the family standard (CNS) T4 specification (210 father 297 male dragon) S1 .:. 20,000 4 1993 ^ V. Description of invention 伮 楮 梂 貢 局 CX 工 消 # Cooperation Du Printed all: the letter short number should be set to close, the line speed should be increased, and the sending point is installed with a high current current measured by the signal station, and the flow pattern is transmitted through the barrier, and the sense of the inner speed is measured. In the case of the electric power system, the current condition of the flow path investigation institute is higher than that of the light system of the light system. It can be used as a power source. The flow gate is blocked and the meridian side is equipped with an on-current device at the nurse to make the reason, the production can be guaranteed at the immediate level, and the current is measured. Li Liji produced the same feeling with it, medium. The system is measured by the barrier current, and the serial number is connected to the detection channel, and the device is set up. Therefore, the power detection is located at the telecommunications station and it is used as the number of roads installed. In addition, for some reason, the road should be detected, and the protection of the line should be closed to detect the location of the secondary road. The electrical conduction of the security line is opened, and the maintenance route is installed. The electrical conduction of the small obstacle is the distribution of the circuit of the current line, so it is reduced to the distribution and the completion is normal. When the sensor-opened line is measured or connected with the normal image, the broken strip is matched with the current situation and the speed-detection is completed. The upper and lower currents in the Ming Dynasty are up and down, and the circuit is extinguished at high speed and high speed. The basic power system is still in place and the power supply is low. The current detection level of the detection sensor should be based on the base barrier and can be set to the barrier reduction data. Detecting the gates, the reason is that the installation is completely reinstalled, and the situation is determined by the electricity, the obstacles, and the equipment. The installation is installed in the customs, and the customs will be closed. Open and close the broken track of the numbered road that opened when you left. Open it to the speed, and divide it (please read the precautions first and then read the Jr page). This paper uses the Chinese National Standard (CNS) T4 specifications (210x297 male dragon) S1. 2. 20,000 5 X99231 A 6 Ιϊ 6 V. Description of invention hurts) The Central Standards Bureau of the Ministry of Economic Affairs β 工 消 # Co-operative printed inter-value distributors whose extended range results in the generation of the mobile letter. The timeliness and use. If there is no current flowing, there is a long cable when the electricity is self-tested. The current display is special when the electric power is turned on and the fault detection and the high-level breaking protection of the electric current application meter are controlled. In this case, the line value of the line system has been maintained due to the strong position of the Shitou; the light barrier is inspected, the axis is replaced, and the sexual device is connected and the quasi-upstream is protected. Protect the power supply and wait for the circuit to be protected. The electrical condition of the tester and the protection system will pass through, and the bad match will be broken. The effective number of lines with light distribution and fixed-sensing road type photometer. The line protection is in the middle device. It allows the current household to have the pre-wires of the secondary electricity. This feels the synchronic electric protection. The value of the circuit is allowed to be used as a distribution beam. There is a photoelectric current. And Lu Jia is so good with light. The better type of music and video device is set to open. Comparing the measured internal loss at the side where the power dissatisfaction device is relatively small to the incident caused by the beam of light and the detection of miscellaneous damage, it is very easy to obtain Inflow measurement, the light sensor will be completed, the current flow will be broken, and the break will be completed. According to the investigation, the current flow is allowed to be completed outside the flow, and the inside is :. , The electricity is too high, the electricity is too high, and the electricity is too high. It will be issued that the watch has a low level of α in the body of the electric appliance, and the sense of the package should often come. It should not be broken according to the flow of the guide wire flow of the installed line. It is a light measuring alum and the breaking power on the shaft of the Shangyi 1 is the same as the first one. One is to set the variable square in Kaiping Road, and the side with the force in the current sensor is installed at the fast water line. The intensity of the wave of the light control of the crack current is indeed high at the high and the secondary is broken at the electric side. The electric light is subject to the number adjustment and adjustment of the old photometry (please read the back-end notes # 埸 3Τ page) to install, order, and line-this paper standard is easy to use in aa Jiayu standard (CHS) A 4 specifications (210X297 Long) S1. 2. 20,000 99231 A 6 η 6 V. Description of the invention (7 The CX Industrial Consumers of the Ministry of Economic Affairs, the Central Bureau of CXC cooperated to print the external barriers, and they have been regenerated by electrical and other obstacles. This is a pre-intention, a pre-integration, and an elementary barrier in the current. This non-internal condition lies in the time-to-open time, and the low-level electricity system in the outer section is single-conducted, etc., until it is in the state. Long-term measurement should be carried out for a power-reducing obstacle. It should be measured in addition to this one. The power transformer section is detected weekly. Get the type should be Flow. When the feeling of becoming a top-notch player is too large, the road body has a low crack. It will be connected to the single flow of the yuan. Closed, single-electricity state-breaking, the circuit breaker of the lowering and lowering of the electric circuit is installed in the square device of the non-opening switch, or avoids the distribution of a line. Shun Zhongzhong and Jiasan Electric are more and more equipped with the opening and closing force protection on the same guide and the pre-changeable cross-shaped forced flow guide, and the protection speed will be realized by the actual speed of the protection in the open section. Bracketing and intermittently this type of flow will set the flow pattern and set up a high flow-the package is not the only one. The skeleton has the element to put the external electricity of the noodles in the type of electricity to effectively complete the separation of each body. Streaming will be more than one device such as multiple devices in the physical barrier. All the installed images are equipped with a gate to close the gate or the circuit is short-term closed. The flow is. When the Mingguan is set, the single switch will be set to a single test. The switch is turned into a gate, and the switch is opened, and the terminal is opened. Sanyouyuan has other types of protection and detection. The type of switch is completed. The speed can be connected to other people, etc., and the body can be guaranteed to open the body speed. Lu Yigao The current should be closed and the diversion should be equal. When the current is high, the one end of the line is equal to the opened phase gate and the open skeleton. The gate type will be used next week to match the other type. Third-class, for the distribution of the dynamic state of the lower body when the flow is interrupted. When the flow is divided and the flow is divided, the lower state device is in the condition of the flow barrier and the flow of the hazard is blocked-the pseudo current flow, the conditional path, etc. If the idle time is idle, it will hurt the gate of the other side of the current-after the situation is turned on and off, this kind of setting (please read the IVJ first and pay attention to the matter #fill the public page) This paper is used in the standard. (CNS) T4 specification (210x297 g; Ϊ) S1. 2. 20,000 7 193231_ V. Description of the invention (8) The Ministry of Economic Affairs # 揮 局 EX 工 消 # Cooperate with Du Yin to produce and store time-with the protection of long electricity .,. Interval; when the position of the picture will be met!> 0 to the configuration of the real-time diagram of the circuit diagram, the electrical fixed rate of Hzlf is customized, the meaning of the junction speed is electrically measured, and the pre-frequency is 500. However, the high-power example of the Nakamoto Line and the start of the source of the power supply to the basic power type are always interrupted by the electrical rate of 03, and the ligand configuration constructs the frequency of power interruption. ο Qianlian Nengtu A stream-to-sturdy electrical appliance can be used for generating, generating, and distributing electricity, and can be installed into a third optical path with a sluice book, and the distribution is deemed to be guaranteed after the completion of the closing of the protective base. It is used for the occasion. Open the road, go up, and test the road into the internal speed of the internal control institute. The solid line is said to be completed when the flow path is completed. The high-order power interrupted in the last one is the value of power. In addition, the multi-configuration of the protection of the telecom conference is in the item barrier, and the configuration is clear. . Installed in this place, this third line is issued with a map, and it is issued by San Lu. The inner gate is shorter than the electric book, which is based on the discontinuity of the original version of the Quben, and the period of the destructive interpretation of the period is shown. Displaying the period of the first display, the period of time between high and low time, the time-free step, the pseudo-image, the pseudo-electricity, the pseudo-electricity, etc., the weekly type is set at the time, and the road map is drawn. The body of the document is used as a protection model. Enter 1; 2 Electricity 3 Transport 45 Structure 67CO This, according to the regular 15 Liulian Baoxiang will be the first of the first figure of the first figure of the first knot of the first 5th gate of the upper middle road to the Yuancheng to be in the room 1 . This should be completed after the power and electricity list is completed (please read the M first and pay attention to the Ping Xiang Office ^ page ~ this standard is used in a national standard (CNS) T4 specification (210X297 male dragon) S1. 2. 20.000 X99231 Λ 6 η 6 V. Description of invention Ο) Block diagram; The structure of the printed element of the Central Consumers ’Bureau of the Ministry of Economic Affairs is an example of the structure of the printed element. ,. Closed to the line end measurement, the actual implementation of the map flow B) road open, lead to the detection of the map based on the real visual gate l (c line speed line, etc. on the road above the six central electric device Leading this element to the electric pole example, the road configuration phase and the single-learning line, the line, the line, the line, the line, the phase, the phase, the third, the third, the third, the separate Combine the five protections into six protections. The details of the tilting of the brake package. The first protection is completed. The system on the side of the third protection station is integrated with the road. The road is cascaded. Shito set up money and issued a line change and parallel package example of protection example, example of protection example, electricity example, the 12th line of the electricity, 3, protection, protection, distribution, display, and distribution 3. Explicitly show the configuration of the road with three rounds, four rounds, four rounds, five rounds, and six rounds, and publish the first edition of the installation. The display shows that the speed of the road display is 7B, and the speed of the number is gr. Injury. Is ;; Ego element diagram., Picture picture picture picture., Picture picture picture A. Picture 9 of the picture structure of the picture A. Picture 10., 1112 view 13 view 14 view 15 structure 1617 shape 1 knot one ζττ3 The body of the first block, the first figure, the first, the first, the first, the first, the second, the second, the second word should be the base number of the electric composition of the electric path of the square path. Lian (please read the back page and fill in the page). This paper uses the standard SB Jiayu standard (CHS) A 4 specifications (210x297 male dragon) S1. 2. 20,000 199231 The test department局 β 工 消 " Cooperative cooperative seal 51 V. Description of the invention (10) The connection is connected in parallel with the corresponding one of the three-phase conductors, and the other ends of the switch units are connected together like this. The thyristor type switch device 3 It can be installed in or near the substation, which will be explained later. Among them, there is a fault detector 4 for detecting the fault current flowing through the distribution line 2. The thyristor-type high-speed switching device 3 is usually set at · Off state, when the fault detector 4 detects the fault current, the thyristor-type switching device 3 turns into a conductive state. Secondly, The three wires of the distribution line 2 will be connected to each other, and the fault current will be distributed between these wires, so that the amplitude of the current transmitted on these wires will be reduced to a certain degree of safety, and the The power distribution line can effectively avoid breakage. Figure 2 is the specific circuit diagram of the first embodiment of the protection scheme shown in Figure 1 and Figure 1. As shown in Figure 2, the fluid-type high-speed switching device 3 includes a three-valve gate Fluid-type switch units 3 U, 3 V and 3 W, one of these ends pseudo-utilizes the corresponding protection circuit breakers 5U, 5V and 5W of a protection circuit breaker unit 5 and respectively leads to the corresponding U-of the distribution circuit 2 Line 2 (J, V-phase conductor 2V, and W-phase conductor 2W are connected. The other ends of the thyristor-type switching units 3 U, 3 V and 3 W are virtually connected to each other. The contacts between the switching units 3 (J, 3V and 3W and the protective circuit breakers 5 U, 5 V and 5 W are pseudo-connected to the arrester contacts 6U, 6V and 6 of the arrester 6 respectively to protect this system Not subject to lightning surges. Each thyristor-type switching unit 3 U, 3 V and 3 W is formed by a pair of semiconductor control rectifiers (SCR) with opposite polarities connected in parallel. Fault Detector 4 It includes a photoelectric current sensing unit 7 with photoelectric current sensors 7 U, 7 V, and 7 W. These sensors are respectively coupled with the corresponding leads 2U, 2V, and 2W of the distribution line 2. These photoelectric current sensing papers use the Chinese National Standard (CNS) T4 specifications (210x297 male dragons) S1 2 20,000 10 (please read the back and pay attention to 15 items before filling the vertical page) χ9923ί Αβ __Η_6_ V. Description of invention ( 11) The detector is optically coupled with the optical beams 8U, 8V, and 8W optically to an optical / electrical transducer 10 in a unified controller 9. As will be explained later, the optical / electrical The transducer 10 includes: a light source capable of emitting a linearly polarized light beam, and the light beam is pseudo-transmitted to the photoelectric current sensor Set one of the Faraday element or pockel element; and a photodetector that can receive the beam from the photoelectric current sensor. The polarization plane of the beam looks like it is subject to the surroundings of the wire of the distribution line 2 In this case, the degree of modulation is proportional to the strength of the magnetic field, that is, proportional to the magnitude of the current flowing through the wire. Therefore, the optical / electrical transducer is detected 10 The degree of modulation of the light beam received by the photodetector inside can measure the magnitude of the current transmitted through the distribution line 2. The electrical signal generated by the optical / electrical transducer 10 is a pseudo-representation circulating on the distribution line 2 The magnitude of the current is supplied to a fault determination circuit 11 provided in the system controller 9. The magnitude of the current in this circuit is compared with a predetermined reference level when the current exceeds this When the level is correct, it can be judged that there is a fault current flowing through the distribution line 2. When the 2 line guide bar of the (please read the precautions before filling in the page) three times, the production flow circuit will be interrupted due to power failure. Judgment line guide 1 Central control 1 first order 1 Sending and sending 1 circuit will be judged by the Ministry of Economic Affairs, the Central Bureau of Economic and Trade Bureau, Pinggong Consumer Co., Ltd. cooperates to print and print at a constant speed, and the high-speed release to the model letter flow will be sent out. 3 control, 3U flow and Hw ° B pass-through and open-opening, high 12-type element single-flow brake, single 2U off-line opening phase is three degrees of equal amplitude. This state is connected by the state. The shape at the time together with the successive 3W and the V, 2 3V and lead. '' The reason for each period of the split period is to avoid the flow of the time and the line, and wait for the period to allow the first line to lead the foot and wait until it is lower than the derived match. Obtained the credibility of the current flow level, such as the contact barrier flow, and the large line of paper used in the paper. The aa home "Bi (CNS) TM specification (210X25U public A) S1. 2. 20,000 11 χ9928ί Λ 6 B 6 5. DESCRIPTION OF THE INVENTION (12) It is shorter than the delay 'time of the circuit breaker 1 in the substation, but is long enough to protect the distribution line 2 from breaking.会 3 便 元 3 # 1 0 Malaysian dollar bills open type control body flow gate, etc., the next period will be connected at 5? Stop, close, and detect I 2 1 and so on, and control the situation. It ’s a state. This state is in the state. Yes, there are 3V yuan, and the single-time image is not if this kind of test is done. 5 yuan single-circuit disconnection *-· Γ It is used in the installation of other circuit interruption as soon as the protection letter is sent out. Here is what you want to do. Disconnect W 5 and (please read the back-to-back precautions # item page). Set the unit 1 to close the unit. Open and close the system. FeE fcE VMC speed control. The type of vertical open-body cross-body flow is suitable for 5 gates, etc., at that time, when 5V is under protection, the type, repair 5U side and or protect the equipment until it is enough. Check the road and check for protection-Picture 2 of the Baobao Information Center, the current route is allocated at the time 2 Money and electricity are distributed as in Ye, the distribution of the electricity within the real money branch shall be displayed in the application. Figure 5 ^ Installed high LO off type Yuankai skeleton single type flow device body, including the broken flow protection, only to ensure that it is not connected to it, so 5a on the ®J1® on S place S ί 4 1 1 Yes r pole ϋ Set line 51 to set up the electric element Ye I single-connected device to connect this fane uk: side ", the security guard Qianbao 16 sets the line. The Ministry of Economic Affairs Central Standards Bureau Bei Gong Consumer Cooperation Du Yinyu 3 Install the first pass at the opening speed. Figure 5 Table 8 1X word counts and 0 9 guidance to control the unified stripe including the table bag 17 is still the number of words, but the Chinese control system B) The control strip is from its own Letters by the number. The contactor and the circuit breaker of the single desert device will protect the circuit breaker of the single device-protect the device from lightning. The device uses sifj to protect a single sensor to ensure that the single waver circuit, the electrical circuit, the electrical circuit, and the optical flash protection. To make this connector for protection connection I to avoid the line of electricity to use the other way of money and electricity distribution in the installation system to the transmission 9 there is set to the phase connection 17 Ye connected and 5 lead) I ground connection with the system 2 Edge ruler on paper --- Standard bidder Ming Min

2 X 20,; 992992 Λ 6 li 6 V. Description of the invention (13) The optical fiber electrobromine 8 is combined with the optical / electrical transducer 10 provided in the system controller 9. In this embodiment, since the thyristor-type switching device 3 is installed on the ground, when the protective circuit breaker unit 5 is turned off, the gate can be easily performed without cutting off the power supply on the distribution line 2 Maintenance work of the fluid type switch device 3. The right example of the structure is implemented, and a separate document is issued. This example is shown in Figure 91. Figure 6 is actually installed in the system and the type, body 21 flow element gate: protect the package Single 21 yuan into a single protection structure to protect the article. Protect the face and keep the 4-pole control. Year of Division 6 and other devices are used as lightning protection to protect the wave burst 7; the flashing of the device is sensed; the flow of 3 is set, the power is turned off, the 9-speed device is high, and the 5 yuan single device is broken and protected (please read first Contrary precautions Λ-fill page) Like 6, the device in the electricity to avoid the implementation of the physical unit conduction single earth device connected to the 'disconnection protection II Dabao 17 and the guide is connected with the common tool to measure the flow of electricity and light The Xiaogen »71 can be made into an integrated system, and the ruin line, i 1 Xiao 2 and yuan a single a 2 I 銭 single connected to form a structure 1 junction ο connected a phase 2 what to install There is no setting and the above map 3 fcE speed high-type building ΜΛΒ flow gates clearly shows that this is here by the pseudo-energy control system g-»-to ensure that this kind of improvement is obtained by M £ r 'Jf δ! raw Viewing the original installation of this special event. 3 The Ministry of Economic Affairs, Central Government, Zhunong Gongxiao # Cooperative Society Printed and ^ Current ^ Gate 5, at this time, it shows the generation line crankshaft. Figure online. Meandering this meter in the meter. On behalf of the line spool curve flat water .. r. Two < its money curve, the curve holds the curve, Qi Shao ’s song R) sex OC holding device & r 33 r. The next 31 Kai electric spoon follow 3 High-speed high-speed type design facility for open circuit breakers

Table B shows the electrical changes in the line C. The curve of the curve is to be 0. The allowable body OC is a guide. The ruler is small and small. It is not on the same side of the house. The table shows the curve of the curve. Line curve is E0 curve and special electricity 0 arc loss electricity is allowed to allow M's shaft to conduct flat hydroelectricity and the current period of 035 galvanic current is a false axis of the straight axis of the magnetic axis of the straight line. The pressure gauge is false. 1 I paper ft scale ϋ used in S1. 20,000 13 199231 Λ 6 η 6 V. Description of the invention (14) The image of flow. These conductors have 2 0 m π 2, 3 2 mm 2, 6 0 mm 2 and 1 2 Ο π m 2 wire electrical distribution. The land is widely used by the Yemen guide, etc. This means that the product surface is transverse. Middle Road Kai No. 3 Installation, shut-off, high-speed 瞜 Ja3, Liu Yun Mingfa, as shown in Figure 3, the third line is like the Cheng Cheng special action of the device, the electric change in the road is set at low pseudo on the Η gCR MP two Household — Household use is shorter than & the ground connection '& ^ 0 is the side Ϊ or η ® barrier Ρ, so it is ® short 2 sex connection bad road Μ ^ ^ Xuum allowed Οκί the body OC and guide There are so many devices that should be used in conjunction with the interruption of the disconnector. The circuit breaker used in the interruption of the interruption of the power generation in the interruption of the power generation system will change when it is in the action of the first example of the first place Be QF〇T The change should be with the anterior type CR body 3 flow gate (know first read the back and pay attention to the Ping Xiang Sun code drink page). Put the electric power in the arc and set the arc to break the electricity, and the opening speed is not too high, and the action is performed. 33 1Ί First, the route will be protected by the electric circuit and the protection circuit will be protected. According to the example of the implementation of the above-mentioned rules, the protection of the road, the power and the electricity, the configuration of the open and the customs, the open, the high-speed type, the body is idle, but the state is stopped everywhere. In-sensor image flow L electric light path at this time, the short circuit of the short circuit is connected to 1 or the short circuit of the short circuit IX 1X yuan single system control and the barrier is used. Therefore, go to the survey and detection of the Ministry of Economic Affairs. The circuit is short, the shape is installed, and the high-speed skeleton flow gate is closed. The transparent route is electrically equipped with the cracking energy before the forcing, and the power is extinguished. The piezoelectric system is equipped with the anti-ground effect. There is enough power to connect to the circuit and it should be restored by the ΠΗ to break the damage point of the fused arc or electric wave to the fault. The 2z road and the line are restored with the electrical edge I '. So® cut off «Λ ^ e sector S S recovery. The arc-shaped state of the device is turned off at the beginning, and the most rapid failure is achieved. Therefore, this type is restored to the body SII. The current gate * r will be R charged c fine ο gal-ηροτ with the paper size for easy use aa home sample standard (CNS) T4 specifications (210X297 public) S1 .: 20,000 199231 Λ 6 Π 6 5 3. Description of the invention (15) Before the operation, within a very short period of time, the above listed actions can be completed automatically. 4 cases of Shi Shi's second article of the general protection route i is shown clearly in the picture is the example of Shi Shi in the same as the formula in the same way as Η its 3 installation opening installation opening speed closing high opening 1 3 The measurement and detection are: t " 2 ► 33 2 Bamboo Road, the linear electrical distribution of the conductive string is implemented in the flow example like the straight speed body high flow type gate. The current tMnl is faulty. Shape stop. Intercepting the phase change of the Chengguan and opening the full-speed and high-square-type certifying MABM sluice, the Ο current barrier is broken, and the bb is cut off, and the bb is exemplified by the example-the first and the iconic to be visited 33 Qihe French system Controlled (please read the back to the Bian item first and then set up the page) Figure 7 Example 10 Implementation of the first system of the three realities The first line of the system is not protected. The center line diagram of the Baosuo Road i ie Mingfa This display shows The example of the first and the construction of the foundation Shi Shishi this device is closed to open the high-speed body of the first order to be a general, the central example is similar to Shi Shi, so it seems. The same phase of the phase table is shown in the same phase. Use the picture in the figure to connect the number to the three circuit breakers. Power on the 2nd circuit and the wire reel like the electrical line. I You Wengxiao The light barrier is for some reason. After arriving at Lianye, it was detected by ^ 0 0 road sense. This unity> 0 unitary unit 7 target device 9 upper sensor side-sensing level flow control sub-system electric light I and light design aspect study light to the Ministry of Economic Affairs of the Central Bureau of quasi-bureau Zhen Gong Xiao # Cooperation Du Yin The system is equipped with an open high-type body flow brake. When the money is paid, the current distribution will be 2 and 3 states. The lead is a turn. After connecting I, the other side of the wire guide is received three times, so it should be enough. Able to use 2 lines to distribute power with the line between the two. The break is due to the distribution and will be separated from the current. It will protect the current and protect the obstacles. It will be published in the upper line. I electro-optical, the first and the seventh magnetic core 1 includes a package 7, the sensor of the gap sensor is equipped with a pseudo-sensing electric current, and the air space 1 has the magnetic pole of the other device and Yuandi Lafa method 1 includes a baotou sensor for sensing and using the standard of Zhongqu National Standards (CNS) 4 on the paper scale (210x297 g,! T) S1. 2. 20,000 15 Λ 6 Π 6 5. Description of the invention (16) It is installed in the air gap of the magnetic core, and the magnetic core is attached to the ring. 2, one of the distribution line conductors 2U, 2V, or four 2. Such a photoelectric current sensor head is familiar in this technical world, for example, it has been described in the approved U.S. Patent Application No. 4,894,609, et al. The sensor head 7b is pseudo-coupled to a light source 10a and a photodetector 10b provided in the optical / electrical transducer 10 using fiber optic cables 8a and 8b, respectively. The light source 10a includes a light emitting element similar to a laser diode, which can emit a linearly polarized light beam, which can be transmitted to the photoelectric current sensor head 7b through the optical fiber electrode 8a. The Faraday element in the sensor head 7b is pseudo-arranged in the air gap of the magnetic core 7a, so it stays in the magnetic field generated by the current flowing through the conductors 2U, 2V, or 2W in the air gap in. In this way, the movement plane of the beam will be adjusted according to the magnitude of the magnetic field and the magnitude of the current. The light beam passing through such a polarized plane is transmitted through the polarizer, so the intensity of the light wave transmitted through the polarizer will change according to the magnitude of the current. The photodetector detects the light and transmits it, and the 10 8b source laser emits light from the fiber. The light in the beam will be displayed. Enter (please read the notes first and then click on the item 2,3 to install, order, and line-the Ministry of Economic Affairs, Central Bureau of Precision Industry, β-consumer cooperatives printed by the cooperative should not be too strong. There is a beam of light. This should be C ο A beam with light including the light beam. 8b light reeling ESC. The light shows the block diagram. The device on the square can be changed to 10 electrical appliances / wave inspection. The structure is detailed. Judgment and body crystal E ΙξΦ light includes a device that can output 2 can be used to change the capacity and adjust the power, and the coupling is strong. A bunch of crystal telecom light that is the body of the DC will become a DC body. According to the amplitude of the wave signal, the letter was born to pass the pass. The 9 will be 2 will slide the number of telecommunications to the level, and the signal is connected to the 28. In the back of the 11th road, the electricity is cut off and the paper is used for the standard side of the paper. The standard (CNS) 4 specifications (21 0x297 public) S1. 20,000 16

X -i Λ 6 Π 6 Printed by the Cooperative Society of the Ministry of Economic Affairs of the Ministry of Economic Affairs of the Ministry of Economic Affairs 31. V. Description of invention (17) The signal generated by the slide circuit 29 will be provided to the comparison circuit 30, and a predetermined reference Voltage comparison. The comparison circuit 30 will generate a signal with logic level a 0 〃 or w 1 " according to whether the signal supplied by the smoothing circuit 29 exceeds the predetermined reference voltage. The output signal of the comparison circuit 30 will be supplied to a logic circuit 31. When a current with an amplitude greater than a predetermined level passes through one or both of the three-phase conductors 2U, 2V, and 2W, the signal provided by the smoothing circuit 29 to the comparison circuit 30 will exceed the predetermined reference value, And a signal with a logic value of " 1 " is provided to the logic circuit 31 from the comparison circuit. Next, the logic circuit 31 concludes that a fault current has passed through the distribution line 2 and sends a trigger command signal to the control unit 12 (see FIG. 2). Then, the control unit 12 will generate a trigger signal to all such The thyristor-type high-speed switching unit 3 (J, 3 V, and 3 W. In this way, the three-phase conductors 2U, 2V, and 2W of the distribution line 2 will be connected to each other, causing the fault current It is distributed between these conductive money, so that these wires can effectively avoid melting. The output signal of the photodetector 10b is also provided to the comparison circuit 32, and compared with a predetermined standard value. The comparison circuit 32 The output signal is provided to a laser diode driving circuit 33 provided in the light source 10a, so that the intensity of the light wave emitted by the laser diode 34 can always be maintained at a reference level. In the feedback control loop, as long as the current flowing through the distribution line 2 has a normal value, the intensity of the modulated beam received by the photoelectric crystal 25 in the photodetector 10b can be maintained unchanged, so that the fault current can accurate It is detected without being affected by the long-term aging of various components. (Please read the precautions before handing over the page). Binding. Thread-Dagger paper 5fc scale edge is used as CNS T4 Specifications (210X297 g;! T) S1. 2. 20,000 17 199231 A 6 η 6 V. Description of the invention (18)

Protect the 1st current protection circuit and the fault line Ϊ Therefore, the JP test and match-out of the detection of 7 sets of hair cut off this test will be in the sense of 31 flow path ΛίgB in the above-mentioned "health system" in the example of Lu Xia Shi cut off the current Real II gate ΜΓ obstacles

.Inyl through high-type camera OOQ electricity-Guan Jiguang opens the circuit and triggers to accept the electricity from the former raw breaker within the 3 installation room. The SB is equipped with the line to prevent and prevent the three-phase effect. , Off to extinguish the optical device that will be damaged > s 1 the electric wave of the sensor is detected, and the electric light is as good as the light. Shoot to break in, melt to make the way or return to damage. The parameter 1'0 is changed. The source does not hold the light and maintains the dimension, which is enough for the 10 degree energy device. The strong number can beam the light. Go back to the exam (please read the back-to-back precautions on page J2-page 11). 7. The source will detect that the current is flowing, so that electricity is electricity. The situation of the lower level of situation is the reason and the aging, and it is used as a UJ ~ long period of time to stabilize the long-term stable energy. A sensor senses the flow S 1 iper light so that the current is Ι ^ ΟΓ 〇 barrier to the test, The local examples in the investigation are indeed precise and fixed, and can be followed by the detection and detection of electricity.

Go to KHJ to search for and find the place to be precise. ^ T is a current barrier. Therefore, the reason is that Mili Shadow is the 7th. It ’s S. Inductive air current and electricity is in electricity. The difference between the system 7 is excellent. The device has in-test tools, inductive and confluent coupling. It is an electro-optical gold 10 optical device. This energy can be used because of the Ann light. The reason is that the reason is that it is difficult to disturb the electricity. 1ng is urgently made and the structure is broken. This line is based on the rule of electricity. The implementation of this example is shown in the previous example, which shows that the legend is connected to the 10th, the 10th, the 4th, the 4th, the protection and the like, and the 7th example is shown in the example. Real 1 before the similar distribution voltage, electricity 41 high device I pressure ο change the display table to include the number of electricity test changes here, with the internal »1 phase to measure the electricity of the branch Change-to-connect. 1 is a medium-sized paper with a standard Η 揳 楳 quasi (CNS) 4 specifications (210x297 male dragon) S1. 20,000 18 V. Description of the invention (1 9) Flow ratio phase zero pressure variable ground connector According to the system, according to the device Ι $ ΠΙΓ, following the protection of the protector, the said 10 device step is broken into its Λ 6 η 6 device, 0 protection and 3 driving drives. Therefore, the art of the world is based on the pBT of the familiar system structure. The Qiandao phase road of the Ming route is equipped with three lines including the electricity package. The side is disconnected by 2 devices. The gnu system 2 is closed and the route is closed. often

I W level. Sub-division--1 · Multi-cut branch connection connection head I f open 2 The regular road line can be equipped with a power line at a certain end and the optional road S2_ road power IpBT line 2 is e, S, S, ο, W, S, externally closed, open, galvanic current value, three yakoshi packs, 7 installed galvanic galvanic diagrams, 1X 第 如 如 之 2 This joint 〇 parallel road ~ line configuration Self-forgery is divided into U Zhilian, etc. 8 packs of Bimoguan ge, Ι ^ ΠΓΒ no instrument number, quick test and high signal, so that the line hangs and guides three (please read the backing notes #fill J3r page) 9-way device line The control system is connected to the 7J-connected body flow gate of the system. 1 The velvet is installed in the open circuit, and the quick-break shows that the high-protection type body protector has 11 pictures. Set the first statement, such as the former Mama 2 and 和 2 3 and the lead wire 5 5 phase of the single-phase three-way opening protection 2 The Ministry of Economic Affairs of the Central Standard Bureau Α 工 消 # Cooperative Society printed the Yoshimoto Road The single-breaker lightning protection and protection should be connected and built to the rules »Point W 5 Hehe connected 5 yuan single closed open flow point connection Device 〇〇 Reel sensing current number of telecommunications, etc. by the establishment of a separate branch system, the No. 2M Xinhe output, the output of 2V, the production 2U production line leads 7W and the same, V ο 7 W 6, out Sent to the stolen 5 4-way electrical system to judge and control the system, when the current is given to the power supply fault, 8V to the test, detect 8V when the 9-channel electrical interruption is issued in the facility, and the order is issued to Bfl awl ο etc. The guide is sent to the equal-sign messenger and the gates are provided for 3V lifting and re-opening. After the 3V, the circuit 3 is issued by a single-touch switch, and the speed is 6-I 4 Use a Η family tree standard (CNS) flat 4 specifications (210X297 male dragon) 9 11 S1. 2. 20,000 Λ 6i993 £ j_Hi_ V. Description of the invention (2 0) The switch units 3U, 3V, and 3W have been turned on for a period After a predetermined period of time, the generation of the trigger signals is stopped, and the switch units will return to their original non-conducting state. The controller 9 also includes a protection circuit 47 and a normally open protection switch 48. When the thyristor-type switching device 3 does not turn to the cut-off state after the predetermined period of time, the protection switch 48 will be closed, and the protection circuit 47 will send an action command to the protection circuit breaker unit 5, and the protective circuit breakers 5 (J, 5V, and 5 W are opened. Meanwhile, in this embodiment, when a short-circuit current or a ground short-circuit current flows through the electric circuit 2, the judgment circuit 45 It will detect the fault current and provide a signal to the trigger circuit 46. Then, the trigger circuit 46 will send a trigger signal to the high-speed switching device 3 of the fluid type. As mentioned above, the high-speed switching device 3 is normally off And when it receives the above-mentioned trigger signal, it will quickly turn on and continue for a predetermined period of time. After that, the switching device 3 will turn into the off state. In this embodiment, for example, when When the high-speed switching device 3 is out of control due to the fault current and is unable to operate, the trigger circuit 46 will enable the protection switch (please read the back first and pay attention to the apple and then Yangenbei)., »-Line. Central Standards Bureau of the Ministry of Economic Affairs κχ Labor and consumption Zuosha prints a 5-yuan single-device circuit breaker and protects it to make ^^ It will be 7-way-E protection and Ihe. The example of the structure of the 48-stop structure is implemented. Draw, see Figure 2 1 〇 The first view of the single-circuit protection of Zhengyuan 2 2 Baolu Road to the line is connected to electricity and electricity and is equipped with one of the tubes. Applying a support: 3 Lizhi is made of… Vulture 5 51 pixels Sub 2 The circuit of the single circuit breaker is broken off 14 to protect the line, and to protect the line. 13 At a place where the device is installed, to 52 points. Injured at the edge of this paper. Use as a Chinese standard (CNS). 4 Specifications (210x29 / male dragon) S1. 2. 20,000 20 199231 Printed by the Ministry of Economic Affairs, Central Bureau of Industry and Commerce A Cooperative Co., Ltd. 5. Description of invention (21) The wire 54 is connected to the thyristor type high-speed switching device 3, and the The wire 54 extends through a bushing 55 fixed above the protective circuit breaker unit 5 and a bushing 56 provided above the switching device 3. The aforementioned controller 9 is installed in the housing 57, The thyristor switching device 3 is installed in this housing, and is connected to the switching device 3 via a trigger signal guide 58. The current sensor 7 installed on the distribution line 2 pseudo-uses the signal desert 8 to be integrated with the system controller 9. The system controller 9 reuses a signal guide extending along the outer surface of the pole 14 The line 59 is connected to the protective circuit breaker unit 5. The lightning arrester unit 6 is installed under the protective circuit breaker 5 and is pseudo-connected to it with a sleeve 55. In order to increase the signal transmission rate and avoid being affected by external noise, It is best to use optical cable to form the signal electrodes 8, 58, and 59. The functions of the fourth embodiment of the distribution line protection system of the present invention constructed in the above manner will now be described in detail. The three-phase conductors 2 (J, 2V, and 2 W of the distribution line 2) have current sensors 7 U, 7 V, and 7 W installed on them. They have been detecting the current flowing through them. When there is some kind of accident When a fault occurs, such as lightning surge, short-circuit fault, and ground short-circuit fault, an abnormally large current is transmitted through one or more of these wires 2ϋ, 2 V, and 2 W, and the judgment circuit 4 5 will detect the increase of each phase current and zero-phase current, and send a command signal to the trigger circuit 46. Then, the trigger circuit 46 will immediately provide a trigger signal to the thyristor type high-speed switching device 3. The thyristor type The switching device 3 will immediately turn into a conductive state. This conductive state will continue for a predetermined period of time. After the trigger signal stops being generated, the thyristor type switching device 3 will turn into a non-conductive (please read the Attention to market items a3 This paper scale is used in a 8 standard (CNS) specifications 4 (210x297 g) 2 1 S1. 2. 20,000 199231 A 6 η 6 V. Description of invention (2 2) General status As a result, the arc current caused by the short circuit or ground short circuit on the distribution line 2 It is cut off, and the distribution line 2 can be effectively protected from breaking. 器 0 Protector protects the circuit from breaking W to electricity, as described before, as the Chengcheng line ge Ιροτ is suitable for the origin of the fault. On the 2nd stop, there is an I-like on-off delay and a delay of 3. The right is set to the left and the second is closed to show the basis. *-? | The high speed type ηαηΜ is scheduled to continue during the week Keep it short to install the device with α «Ό 爵 i. Disconnect the body current drive. 44. The device should be protected when the current relay is protected. It is delayed after the removal. The guide needs 3 junctions ο break and then inconvenience. The circuit is broken * In this case, Lishi Electric is located in the quasi-free state, and it can be installed easily to the low power drop. It should be installed, or the obstacle 3 should be installed. , Turn off the high-speed type of broken skull cut current is turned on by the gate method in the state of no current, that is, the electrical barrier is turned into a transition, and the current stored in the H line will store the current in the time after the transformer is disconnected. Late. The delayed power supply is scheduled to stop It can be installed in the case of the No. 2 circuit breaking conference, and it is installed in the high speed, but the type 3 body floodgate is stopped and the number has been sent. The non-conversion method is not available. The Ministry of Economic Affairs, the Central Bureau of Economic Development, Pak Kong Consumer Co., Ltd. sets up a cooperative to print the road and protect the road. The power station is not equipped with 2 power stations. In the ο short circuit and the installation of the roro in 3 installations, the i-connected single-phase circuit of the road branch should be protected by the example of the Central Committee to ensure that the circuit is equipped with the connecting system. Μ device easy to break the light and protect ten is enough to be able to general. If the protective device is installed with a high-speed open-type 9βηΜ flow gate, it can be used as above. China aa family standard (CNS) A 4 specifications (210x297 male dragon) S1. 2. 20,000 22 199231_ V. Description of invention (2 3) Central printing equipment of the Ministry of Economic Affairs A Gongxiaot Co., Ltd. Co., Ltd. Duzhong Printing Center's central installation drawing Off, 4 1 1 The first speed and the high-pattern 1311 The first current is the same as the same gate, and the same series of the previous 10 is shown in the example, the fifth example is the electric route and the configuration of the first example. The 1Χ6 of the fabric is resistant to tension and is 2 high-type cross-flow gates. There are 63 cases in the installation section to the road connection velvet with electric connection, and 62 cases are suspected of applying electric solid lines and five spans. On the 2nd, the 21st line of the road, the electric shell is equipped with the 9 8 device reeling electric control number which is installed in the unified installation to protect the connection. Uniform Information Office ^ Use the 17 device and the IJt 3 uSI to install the 91 sensor flow control system to open and close the speed control surface relay protection facility. The electric current is changed to the short-circuit current section of the current, a case of failure is applied to the Based on the actual measurement and detection, when the off state is set, the device is closed, the switch body is opened, and the flow rate is high. This type of SS is always connected, that is, it is always up to 44. Set s J segment! This status is passed §0 guide Ξ $ week 1 transfer time f meeting, I also set 3 when the pre-set room is closed and open the delayed skeleton flow of the first example of the implementation of the implementation of the rules to protect the front line in the line like electricity In addition, in the Ming Dynasty, this example shows that this is in the picture, the 16th sample and the same picture. In the 15 cases, the first part of the 6th statement of the Shishi is shown in the first part of the series, as shown in Figure 5. The table 7V comes from the 7U digital tester. The No. 3 route of the Shishishi guide is equipped with a false reel i letter, etc., and 9 circuits in the device are judged (please read the precautions before filling out the long page). . On the surface W 2 and the control system should be set up to connect to the tf 8 and the device to sense the galvanic current! The first class should be done with 5 places and 8 devices, waiting for 8 devices to measure the inductance number. Each type of measurement describes the forefront of the reconnaissance field, and the instrumental flow measurement under the magnetic conditions or the sensory measurement of the light W! 7 Use and use, in reeling EC 1 L-¾, — .. _ body light pole with two It is necessary to emit 8W light and the like, and there are 5 4 channels of electrical interruption judgment in the secondary body pole or the source light. The paper is used in the 81-bit home standard (CNS). Ή specification (210X2W male dragon) S1. 2. 20,000 23 ι992- Λ 6 \\ 6 5. Description of the invention (2 4) Kelu i. Hair touch Here, 6 4 channels trigger 1 to connect to I 5 like 5 4 channels 1 o device wave breaking judgment light detection 3 installation and opening and closing S high-type road skeleton line current switch with one should be given for giving and giving points Baofa touched the synaesthesia of this guide for planting a certain product. Stream W 5 3 Minghe, etc., the 3V is composed of a straight 3U unary system with a single small gate and a large open current type electric current gate, connected to a 2V fane, connected to a 2U parallel line, 2 leads and so on, the 2V passes the Ϊ off 4 Judging by the No. 45 telecommunication circuit's power generation judgment, the judgment should be judged. At that time, it was born to send and receive flow control. Supervision 46 and the road detection, so the detection of the electric detection will be added to the 7W stream number and telecommunications with quasi-touch, and the 7V pre-order will be ordered. The pre-segment body is at the gate, and it is provided for the proposed pre-segment 1 to be touched when the circuit is issued during the period of the 4th period. No., the signal state is triggered, and the lead is in the turn-to-turn state. It is the same as this. Ο 3V state, the state 3U pass element is not closed to turn on and then turn off (please read the back first and pay attention枣 项 #Filling 3 Packing-After booking. The pre-guided section of the inter-temporal state is fixed and the most non-installed at the initial opening, and this type of installation is closed in the adult complex period. In order to wait for Baohuihui to install a closed plaque sluice line. The second time, the Ministry of Economic Affairs Central Bureau of Employee Protection Cooperative Cooperative printed circuit breakers were disconnected and protected in the security connection of the Department of 5 5 yuan single It should be placed in 3 places, pseudo, pretend ξ η! Changzhongguantongruuuu type Π5 entity ί Liuliu V, No. 5 shows Figure uIK, 2 circuit breakers are protected in the state. The second type 8a3 AUU flow brake is connected with the current yb 5 ft. There is a 5V connection -MU »Another 5U divider is still on the road Guarantee 3W equal to this, 3U outside of 3V, this element is single-state closed. If the device is connected, it will be fixed at 65 yuan, and the system will be locked. Hedan 64, system η IV control (C δ connection> .il U even money 61 imager ltf closed _06 with sense? Internal flow V, | electricity 61 to device 0 induction current second grade this paper Scale side is used in the national «quasi (CNS) T4 specification (210X297) S1. 2. 20,000 24 199231 Λ 6 It 6 V. Description of the invention (2 5) Line source Λί Yuan pressure single electrical appliance low road one broken system 7 — Protection 6 Baoyu the number '-ο Dispose of the set lock to control the counterfeit device 0. Change 1 It is judged by the power system and connected to Weng at 7 6 Qian Yuan i IpS * Pressure E low k6, 4 20-way wire power generation matching, at 45 from the power supply and breaking the unit control system and the combination of 2 6 yuan unit control and by the like pool power unit, single pool device circuit-type storage protection It ’s time to come out, show electricity and charge the future 167 Wired Yeyuan power-up and build electricity at low 62 The conduction of 5 Lightning and avoidance has a design and implementation examples. Indicators come and wait for the indicator to be in a state of 60 The cut-off orders of the yuan and the obstacles hinder the structure of the structure. The integrated protection route is clearly distributed. The display route is 16. The 4th arm is supported. 1X The line is installed on one to two. a (please read the back-to-back notes of Bian Xiang Er's first page) support, Yuan's order 51 connection device subphase Lu 3 3 2 route support tube sets a warp system and the device arm connects the support Equipped with the protection and protection of the i 3 down and 5 5 tube set one by the like 5 yuan single device circuit protection protection ο connect I- comply with the phase of the tube set 1 through the 3 ί maintenance. 1 mesh Mf shell and a Outside the shell, the line is installed with a power switch, and the 9-arm control system under the inner arm of the high-speed and high-current-trapping installation is equipped. There is a hanging package under Shang Xiangdian II. The 6 yuan single device lightning protection outside the 5 yuan single device circuit break protection is described before the Ministry of Economic Affairs Bureau of the Central Standards Bureau 13: Industrial and Consumers f cooperation to print this. And connect hoc * W dr f 1 2 5 6 shell element in-house design and control equipment and {$ 69 Junling, electric 3 6th confidence equipment borrow injury lock 61 and device »Measuring 61 sensor flow measurement inductance second-party Under the 7 5 shell external installation like 2 8 yuan single system control should use Li heng 7 6 line source S piezoelectric low 〇 hanging down to 0 1 ° horse arm system under the control of the same and since 7a 傜 和 线The electric surface is connected to the watch. 3 The setting of the evening 6 is equipped with 14 rods and the line is locked. The inner edge is 21. The shell is used on the outside image. 2-; 6 Phase No. 2 3 6 Extend the yuan to continue the paper standard to contain the central group "CHB 1M specification (210x297," :) S1. 2. 20,000 25 Λ 6 Π 6 19923 V. Description of the invention (2 6) Similarly, in this embodiment, when one or more of the first current sensors 7U, 7V, and 7W detects that a faulty current flows through the distribution line 2, the judgment circuit 45 will Send a command to the trigger circuit 46 to generate a trigger signal and hold it for a predetermined period of time, so that the thyristor-shaped switch units 3U, 3V, and 3W will all be turned on State, so that the distribution of these line conductors 2U 2, 2V, 2W and connected to each other. In the above

After the time period has elapsed, the trigger circuit 46 stops generating the trigger signal, so that the switching units will turn into a non-conducting state again. The fault current flowing in the distribution circuit 2 will be reduced, and the distribution circuit 2 will resume its normal power supply state due to the interruption of the control signal. Therefore, although the thyristor-type switching device 3 is pseudo-converted to the conductive state, the fault current will be distributed between the wires 2U, 2V, and 2W, and the power distribution before the switching device 3 is switched to the non-conductive state again. The arc discharge in Qian Lu 2 will be extinguished. In this way, since the circuit breaker 1 in the substation H is not opened, the distribution circuit 2 can be protected without causing undue power interruption. If the fault current does not stop or decrease during the period during which the thyristor-type switching device 3 remains in the on state, the circuit breaker 1 provided in the substation H will be opened after the delay time of the protection relay 44 has elapsed. In this way, the distribution line 2 can be effectively protected. Secondly, in this embodiment, the protective circuit breaker unit 5 is connected in series with the idle fluid type switching device 3, and is usually in the conductive state. When the second current sensors 6 1 U, 6 1 V, and 6 1 W detect a leakage current flowing through the thyristor switch device 3, the control unit 62 controls the locking device 63 so that the Wait for 5U, 5V, and 5W protection circuit breakers. In this mode, the 51-edge border of this paper is used in the Chinese S-B Family Standard (CNS) T4 specification (210x297cm) (please read the back-to-back note section # 锅 亿 页) installed-line · Ministry of Economic Affairs Central Mullion Quasi-bureau C3: Printed by the industrial and consumer cooperative S1. 2. 20,000 28 X 99231 Λ 6 It 6 Central Ministry of Economic Affairs Bei Gongxiao # Cooperative print 51. Description of the invention (2 7) The thyristor type switching device 3 can be used with Distribution line 2 is separated. When the trigger circuit 46 turns the thyristor-type switching device into conduction and holds it for a predetermined period of time, for example, ten cycles, but the thyristor-type switching device still remains in this on-state, the protection circuit breaker unit The above lotus works of 5 will also be carried out. When the distribution line 2 provides power to the low voltage power line 6.7, the system has no voltage, this situation will be detected by the control unit 62, so when the low voltage drops to zero, the control unit will immediately make The protective circuit breaker unit 5 is turned off, so that the distribution line 2 is not affected by such a fault. Since the thyristor-type switching device 3 is separated from the power distribution line 2 in the above manner when a certain failure occurs in the protection system, the advantage is that the power supplied to the user is not interrupted, which will not cause power interruption. In this case, the thyristor-type switching device 3 can be repaired and maintained at any time. Next, the operation of this embodiment will be described in detail with reference to FIGS. 17A and 17B. The thyristor trigger circuit 46 is activated by the command signal generated by the judging circuit 45, which is structurally capable of generating a trigger signal of a predetermined number of cycles of the AC power distributed on the distribution line 2. Fig. 17A pseudo-shows the variation of the arc current of the thyristor-type switching device 3 from the off state to the on state and back to the off state. T1 injury represents the time interval from the moment when the arc current starts to the moment when the switching device 3 changes from the off state to the on state when the arc current is detected on the distribution line 2. T2 represents the period during which the arc current gradually decays after the thyristor-type switching device 3 has been completely turned into a conducting state. T3 represents the time interval when the trigger circuit 46 generates a trigger signal. In order to effectively extinguish the arc current, the above-mentioned time T3 looks like Specification (210X297mm) S1. 2. 20,000 27 ί99231 Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of Invention (2 8) The figure shown in Figure 17B is set to T3 = T2 + ct. It should be noted that, even after the trigger signal is stopped, the thyristor-type opening device 3 usually remains in a conducting state, so the time interval T5 at which the thyristor-type switching device 3 remains in a conducting state is as shown in 17B, Expressed as T5 = T3 + T4, where T4 will not be more than 0.5 bow period. In this embodiment, the period T3 during which the trigger circuit 46 generates the trigger signal is pseudo-set to not less than 1.5 cycles of the power source distributed on the distribution line 2. In this way, during this period, the arc current in T3 will be completely extinguished. The inventors have conducted experiments to change the above time interval T3 in various ways. (Please read the back to the attention first 床 项 # 壜 良 3 Binding · Order · This paper size is easy to use China S Jia Yu Zhun (CNS) 悀 4 specifications (210X297 public *) S1. 2. 20,000 28 ί CU 2 9 9 6 6 ΑΠ V. Description of the invention 26) Printed by the Ministry of Economic Affairs, Central Bureau of Industry and Engineering, Zhengong Consumer Cooperative 1 watch 1 thyristor, 1 cycle, 1.5 to 5 cycles, not less than 6 cycles, control time, m, arc state, unextinguished, extinguished, aluminum The alloy conductor is slightly melted and the aluminum alloy guide is slightly melted and the molten state is cut off. The copper guide is almost in a molten state. The copper guide is almost in a non-melting state. Almost in a non-melting state. Because of the cut off, Huo Zeng Lidi fell due to the instantaneous voltage drop caused. Its shadow depression is very small. And there is a strong colorful sound. In other states, the breaker in the substation will be opened and the power interruption will occur. (Please read the precautions first and then fill in the page) This paper »Standard Use Zhongqu S Family Standard (CNS) A 4 specifications (210x297 g) S1. 2. 20,000 29 199281 Λ 6 η 6 V. Invention Explanation (3 0) As shown in Table 1, when the time interval T3 of the trigger signal is set to a 1-pitch period, the arc discharge does not extinguish, and the distribution wires will blow. When the time interval T3 is set to 1.5 to 5 cycles, the arc discharge will be extinguished, and the conductor will be hardly damaged. When the thyristor-type switching device 3 is turned into a conductive state, an instantaneous voltage drop occurs in the power distribution circuit 2. However, it has been confirmed that when the control time of the thyristor is set within the range of 1.5 to 5 cycles, there will not be any actual harmful effects. When the time interval T3 is set to more than 5 cycles, even if the arc has been extinguished, there will still be a significant effect of the instantaneous voltage drop. In addition, in the case of a 10 to 12 cycle, the circuit breaker 1 provided in the substation H will be opened. Therefore, according to this embodiment, it has been confirmed that the time period T3 of the trigger signal is preferably set at 1.5 to 5 times the power period allocated to the power distribution line 2. That is, when the power supply is 50 Hz, the time period T3 is preferably set to 0.03 to 0.1 seconds. In other words, according to the present invention, the period of the trigger signal is preferably not more than half of the delay time for the protection relay to drive the circuit breaker in the substation, but it is more than the power distributed on the distribution line 1.5 cycles. (Please read the precautions before adding £ 3. · IB _ Line · The Ministry of Economic Affairs, Central Standards Bureau, KX Industrial and Consumer Cooperatives printed distribution power line measurement and barriers. When the road is on the ground, the telecommunication is set to be short, and there is light in front of the road. The light can be used online and the power is turned on or off, so that the test equipment is melted and the arc is closed because the image is closed. If the speed is detected, the connection will be broken, and the high detection will result in a low current or type. A certain line will lead to an old current and the right current, the body gate, and the road will be outside the green. Connect this line or this. The light string is due to electricity,. Is sent out, or is equipped with a fault elimination function. This combination should be extinguished. According to the parallel movement at the speed, it can follow the road, and it will break quickly. In the national a «quasi (CNS) T4 specification (210x297; it) S1. 2. 20,000 30 Λ 6 ± 99231_lie_ V. Description of the invention (3 1), accurately detect the presence of fault current. In addition, when When the thyristor-type high-speed Kailan device is turned on, the time period it takes is shorter than the delay time of the circuit breaker installed in the substation. The fault current can be extinguished without causing the circuit breaker to be opened, so the number of power interruptions can be reduced. Moreover, when the protection circuit breaker is connected in series with the thyristor type switching device, the latter is connected like When the distribution lines are connected in parallel, if the switchgear does not return to its original non-conducting state even after the predetermined time period has elapsed, the protective circuit breaker will be opened to separate the switchgear from the distribution line. In addition, cut the soy protection circuit breaker , The switchgear can be repaired without causing any improper power interruption. (Please read the precautions before filling in t 3 Printed on paper size by the Beigong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. A B Family Standard (CHS) 4 specifications (210 father 297 male dragon) 3 1 S1. 2. 20,000

Claims (1)

/ ff · 19923ί Η3 Patent Application No. 8 11 0 0 69 7 Amendment to the Patent Scope (September 19, 81) 1. A protection system for accidental failure of distribution lines includes a current that can be detected through the distribution lines And a current sensor t generating an electrical sensing signal t — can accept the inductive sensing signal to detect a certain fault caused by a short circuit fault or a ground short circuit fault of the distribution circuit and generate a fault detection signal fault Detector and -a thyristor three-torque m-type local speed-open II device connected somewhere on the distribution line on the secondary side of the circuit breaker in the substation »This thyristor-type ft speed switch device can respond to the fault detection The fault detection signal t generated based on the current sensing signal generated by the current sensor extinguishes or reduces the fault current flowing through the 2.-X- distribution line 0 2. As claimed in item 1 of the scope of protection, the system is 9 of which the gate is of the same size. The high-speed switchgear includes multi-actuated gate fluid type switches αα unit, which are connected to the distribution circuit at the disconnection. On the secondary side of the device, a line corresponding to a different phase is connected in series i. The disconnection DD is pseudo-connected to the s * i. The line of the different phase in the power station is t. The thyristor type switch DO is usually kept in the early stage. Closed 3. The protection system as claimed in item 2 of the patent scope in which the current sensor includes a Jtt photoelectric current sensor f — a first group of fiber optic mf and a second group of fiber optic m > The current sensors are each installed on the wires of the distribution line corresponding to different phases and the fault detector handle emits ψ light, etc. can be used to praise the first armor 4 (210X297 public) 80. 5. 5,000 » (Η) X99231 Η3 set of optical fiber electrical m transmitted to the photoelectric current sensor t can receive the photoelectric current sensor modulated and passed through the second set of optical fiber electrical m light detector t can handle the photodetectors The output signal provided by the generator generates a trigger command signal Sife which can represent the occurrence of fault current. The judgment circuit 9 and-can respond to the trigger command signal to generate a predetermined value that can make the thyristor type switches ασ into a non-conducting state Trigger circuit of the trigger signal of the time period 0 4. For example, the protection scope of the third item of the patent application scope f f where the predetermined time period of the trigger signal is set to be pseudo shorter than the circuit breaker set in the substation during the operation of the lotus Delay time 0 5. For example, applying for patent An ·,-the protection clause of item 4 > where the predetermined time period of the trigger signal is The fixed value is within the range of 1.5 to 5 cycles of the distribution of power along the distribution line 0 6. If the patent is protected, the protection system of item 1 of the circumstance y3, where the brake fluid ι3Χί · type local speed switching device includes Multiple thyristor-type switches Zaoyuan> Each UU part of each thyrostatic-type switch αα is connected in parallel with wires of different phases corresponding to one of the distribution circuits in parallel> and% is located in the electrical station with these The secondary inversion of circuit breakers connected by conductors of different phases> The other iJLU m parts of the thyristor type switches αα early element are connected to each other t The thyristor type switches αα early element are usually kept in the non- Conduction 0 7. For example, the patent protection fE surrounds item 6 of the protection system, where the current sensor includes a plurality of photoelectric current sensors installed on the corresponding different phase conductors of the distribution line t the first group of optical fibers Electric m And the second group of optical fiber electrical desert i and the fault detector include a beam that can emit light and use the first group of optical fiber cables to transmit the beam to the photoelectric current sensor A 4 (210X297 Gongshou) 80. a 5,000 sheets ( Η) The light source 9 of 199231 H3 can accept a photodetector modulated by the photoelectric current sensor and passing the light beam passing through the second group of fiber optics > can process the output signals provided by the photodetectors and A judgment circuit that generates a trigger command signal m that can represent the occurrence of a fault current »and a trigger circuit that can trigger the command signal and generate a m signal with a predetermined time period that enables the thyristor type switch aa to be turned on early 8. For example, the protection system of the 7th item of the patent application scope, in which the predetermined time period of the trigger signal is shorter than the circuit breaker set in the iSi power station. The delay time is 0 9. If the protection of the patent item 8 is requested, the value set in the predetermined time period of the trigger signal is 1.5 to 5 percent of the power distributed along the distribution line. A ^ W -内 内 0 1 0. If the protection of the patent scope item 8 is requested, the structure of the thyristor-type high-speed switchgear is such that the vertical axis represents time and the horizontal axis represents the persistence of current. Curve t In the figure, the characteristic curve is set to be lower than the over-current ϊη m of electrical circuit breakers and electrical distribution conductors (1S.) Which are allowed to damage the impact curve of the circuit breaker provided in the substation and above the circuit breaker set on the user side. The allowable loss of the overcurrent relay of the device is the range of the standby curve. 0 1 1. If you ask for the protection of item 7 of the patent car G Wai > where the fault detector still includes — Yes A feedback control circuit that maintains the intensity of the current delivered to the photoelectric current sensor is unchanged 0 1 2. If the protection system of the patent scope item 6 is applied, it also includes multiple conductors connected to corresponding different phases and corresponding The thyristor-type switch αα The question of the early yuan, the capture Μ i »fcrr Pf device * M. One can Xue Xiejie Pf 絨 pr opened a 4 (210X 297 public) 80. SS, 000 Zhang (Η) H3 control Device 0 13. The protection system as claimed in item 12 of the patent scope, in which the control device is constructed after the trigger signal stops being generated. 1 The thyristor type switching unit does not return to the original non-conducting state. These protective circuit breakers are disconnected. 14. For example, the protection clause 9 of the scope of the patent application item 9 where the control device includes an external arrangement on the distribution circuit i can make the thyristor type switching device and the distribution The current sensor f connected to the different phase lead curves m of Qian Lu can process the output signals provided by these additional current sensors to detect the abnormal condition of the thyristor type switch aa early element to generate the driving signal. The control ασ early yuan 9 and a possible m should drive the signal 〇 ± im to make the protection circuit breaker open the locking device 0 1 5. For example, apply for a patent id around item 14 protection% system t where the control acr early yuan in Structurally, the drive signal can only be generated when there is no power supply voltage along the distribution circuit. 16. As in the patent application, the protection of item 15% of the patent system is 9%. The control ασ early element is obtained by using a current transformer. The low voltage formed by the power supply on the distribution line to provide energy 0 17. For example, the protection system of the first patent application scope> where the fault detector and gate (/ I t Limb switch U Zaoyuanyu is installed on the ground near a telephone pole equipped with a power distribution circuit. 0 18. For example, the scope of protection of patent application item 1 is 1% where the fault detector and thyristor type The switch αα early element is pseudo-set on the top of the wire on which the distribution line is installed. 0 A 4 (210X297 Gongshou) 80. a 5,000 sheets (Η)