CN102760594B - Transformer substation misoperation preventer and ground wire locking device thereof - Google Patents
Transformer substation misoperation preventer and ground wire locking device thereof Download PDFInfo
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- CN102760594B CN102760594B CN201110108518.3A CN201110108518A CN102760594B CN 102760594 B CN102760594 B CN 102760594B CN 201110108518 A CN201110108518 A CN 201110108518A CN 102760594 B CN102760594 B CN 102760594B
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Abstract
一种具有地线闭锁装置的变电站防误操作设备，主要包括：母线、地线、母线侧刀闸（1）、地线桩（2）；其中，隔离开关接触盒（3），与母线侧刀闸（1）一一对应连接，隔离开关接触盒（3）串联后，连接并联的地线盒（4），控制地线盒（4）的开与合；地线盒（4），地线盒（4）连接全部的闭锁器（5），控制闭锁器（5）的启动；闭锁器（5），与母线侧刀闸（1）一一对应，控制母线侧刀闸（1）开闸与合闸；本发明特别提供一种具有地线闭锁装置的变电站防误操作设备，克服了现有防误操作设备的缺点，可以遏制变电站在停送电操作过程中带电挂地线和带地线合闸的人为误操作事故的发生，具有重大的经济价值和社会价值。
A substation anti-misoperation equipment with a ground wire locking device, mainly including: busbar, ground wire, busbar side knife switch (1), ground wire pile (2); among them, the disconnector contact box (3), and the busbar side The knife switch (1) is connected in one-to-one correspondence. After the isolating switch contact box (3) is connected in series, connect the parallel ground box (4) to control the opening and closing of the ground box (4); the ground box (4), the ground box The terminal box (4) is connected to all the lockers (5) to control the start of the lockers (5); the locker (5) corresponds to the busbar side knife switch (1) one by one, and controls the busbar side knife switch (1) to open Switching and closing; the present invention particularly provides a substation misoperation prevention device with a ground wire locking device, which overcomes the shortcomings of the existing misoperation prevention equipment, and can prevent substations from hanging ground wires and The occurrence of human misoperation accidents caused by the closing of the ground wire has great economic and social value.
Description
Technical Field
The invention relates to design of misoperation accidents of a transformer substation, and particularly provides misoperation prevention equipment of the transformer substation and a ground wire locking device thereof.
Background
The manual misoperation accidents of the transformer substation of the national grid company in the power cut and transmission process mainly include that a ground wire (grounding switch) is hung in a charged mode, and the ground wire (grounding switch) is switched on; at present, the conventional misoperation preventing device is difficult to effectively control misoperation accidents of the type. The existing microcomputer anti-misoperation locking device of the transformer substation plays a very good role in the power cut and transmission operation process, and powerfully ensures the safe production work of transformer operation. Although the existing microcomputer anti-misoperation locking device makes comprehensive anti-misoperation measures, the microcomputer anti-misoperation locking device cannot effectively control the operation of a field isolating switch (disconnecting link) and a ground wire due to the randomness of the ground wire. Therefore, in the power transmission and outage operation process of the transformer substation of the national grid company, the accidents of live grounding and closing with the grounding still occur occasionally.
Disclosure of Invention
The invention particularly provides the transformer substation anti-misoperation equipment with the ground wire locking device, overcomes the defects of the existing anti-misoperation equipment, can inhibit the occurrence of human misoperation accidents of live grounding wire hanging and live grounding wire closing in the power cut and transmission operation process of a transformer substation, and has great economic value and social value.
The invention discloses a transformer substation anti-misoperation device with a ground wire locking device, which mainly comprises: the device comprises a bus, a ground wire, a bus side disconnecting link (1) and a ground wire pile (2); wherein,
the disconnecting switch contact boxes (3) are correspondingly connected with the bus side disconnecting switches (1) one by one, and after being connected in series, the disconnecting switch contact boxes (3) are connected with the ground wire boxes (4) which are connected in parallel to control the opening and closing of the ground wire boxes (4);
the ground wire box (4), the ground wire box (4) is connected with all the locking devices (5), and the starting of the locking devices (5) is controlled;
the locking devices (5) correspond to the bus side disconnecting links (1) one by one and control the switching-on and switching-off of the bus side disconnecting links (1);
the bus side disconnecting link (1) is pulled open, the isolating switch contact boxes (3) correspondingly connected with the bus side disconnecting link are connected with a power supply, all the bus side disconnecting links (1) are pulled open, the isolating switch contact boxes (3) connected in series are connected with the power supply, at the moment, the ground wire boxes (4) connected with the isolating switch contact boxes (3) in parallel are all connected with the power supply, and the ground wire boxes (4) are opened under the action of electromagnetic force; when the ground wire pile (2) of one of the ground wire boxes (4) is provided with the ground wire, the power supply in the ground wire box (4) is conducted, all the locking devices (5) connected with the ground wire box (4) are all started under the action of electromagnetic force, the locking devices are located at the locking positions, and the disconnecting link (1) on the bus side is forbidden to be switched on.
The invention relates to a transformer substation anti-misoperation device with a ground wire locking device, wherein an isolating switch contact box (3) comprises a moving contact fixed on the bottom of a transmission rod of a bus side disconnecting link (1) and a contact box fixed on a base of the transmission rod of the bus side disconnecting link (1), and a static contact is arranged in the contact box; the static contact is two power contacts.
The invention relates to a transformer substation misoperation prevention device with a ground wire locking device, wherein a ground wire box (4) mainly comprises a box body (40), a ground wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the ground wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40) and is opened and closed left and right.
The invention relates to a transformer substation anti-misoperation device with a ground wire locking device, wherein a locking device (5) comprises a locking box body and a locking bolt, and the locking bolt is arranged in the locking box body; the locking bolt is popped out of the box body after being electrified.
The invention relates to a transformer substation anti-misoperation device with a ground wire locking device, wherein a switch I (6) is connected in series between a ground wire box (4) and a locking device (5); the switch I (6) is a normally closed switch.
The invention relates to a ground wire locking device for misoperation preventing equipment of a transformer substation, which mainly comprises a bus side disconnecting link (1) and a ground wire pile (2); wherein,
the disconnecting switch contact boxes (3) are correspondingly connected with the bus side disconnecting switches (1) one by one, and after being connected in series, the disconnecting switch contact boxes (3) are connected with the ground wire boxes (4) which are connected in parallel to control the opening and closing of the ground wire boxes (4);
the ground wire box (4), the ground wire box (4) is connected with all the locking devices (5), and the starting of the locking devices (5) is controlled;
the locking devices (5) correspond to the bus side disconnecting links (1) one by one and control the switching-on and switching-off of the bus side disconnecting links (1);
the bus side disconnecting link (1) is pulled open, the isolating switch contact boxes (3) correspondingly connected with the bus side disconnecting link are connected with a power supply, all the bus side disconnecting links (1) are pulled open, the isolating switch contact boxes (3) connected in series are connected with the power supply, all the earth box (4) connected with the isolating switch contact boxes (3) in parallel are connected with the power supply, and the earth box (4) is opened under the action of electromagnetic force; when the ground wire pile (2) of one of the ground wire boxes (4) is provided with the ground wire, the power supply in the ground wire box (4) is conducted, all the locking devices (5) connected with the ground wire box (4) are all started under the action of electromagnetic force, the locking devices are located at the locking positions, and the disconnecting link (1) on the bus side is forbidden to be switched on.
The invention relates to a ground wire locking device for misoperation prevention equipment of a transformer substation, wherein an isolating switch contact box (3) comprises a moving contact fixed on the bottom of a transmission rod of a bus side disconnecting link (1) and a contact box fixed on a base of the transmission rod of the bus side disconnecting link (1), and a fixed contact is arranged in the contact box; the static contact is two power contacts.
The invention relates to a ground wire locking device for misoperation preventing equipment of a transformer substation, wherein a ground wire box (4) mainly comprises a box body (40), a ground wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the ground wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40) and is opened and closed left and right.
The invention relates to a ground wire locking device for substation misoperation prevention equipment, wherein a locking device (5) comprises a locking box body and a locking bolt, and the locking bolt is arranged in the locking box body; the locking bolt is popped out of the locking box body after being electrified.
The invention relates to a ground wire locking device for substation misoperation prevention equipment, wherein a switch I (6) is connected in series between a ground wire box (4) and a locking device (5); the switch I (6) is a normally closed switch; normally, the switch I (6) is closed and locked, and the switch I (6) can be unlocked and disconnected only when the bus side disconnecting link (1) is overhauled (a transmission test and a three-phase same-period test of the bus side disconnecting link (1)).
The invention relates to a transformer substation anti-misoperation device with a ground wire locking device, which is mainly characterized in that a ground wire box (4) is additionally arranged on a ground wire pile, an isolating switch contact box (3) and a locking device (5) are additionally arranged on the lower part of a transmission rod of a bus side disconnecting switch (1), and locking is formed through electrical connection. When a bus (line) needs to be provided with a ground wire, if any group of bus side disconnecting switches (1) on the bus (line) is not disconnected, the ground wire box (4) is closed, the opening and closing of the ground wire box (4) is controlled by the isolating switch contact box (3) at the lower part of the transmission rod of the bus side disconnecting switch (1), only when the bus side disconnecting switches (1) are completely disconnected, the ground wire box (4) can be opened, and at the moment, the electricity testing is allowed to hang the ground wire; when the ground wire is connected to a ground wire pile (2) in a ground wire box (4), the ground wire presses a spring movable contact piece (42) to contact two power supply contacts (43), the power supply of a locking device (5) is conducted, the locking device (5) starts locking, a locking bolt in the locking device (5) is popped out and clamped at the lower end of a transmission rod of a bus side disconnecting link (1), and the bus side disconnecting link (1) is forbidden to be switched on.
The invention relates to a transformer substation anti-misoperation device with a ground wire locking device, wherein the relation among a disconnecting switch contact box (3), a ground wire box (4) and a locking device (5) is as follows: the bus side disconnecting link (1) is pulled open, the power supply of the isolating switch contact box (3) is conducted → the ground wire box (4) is opened under the action of magnetic force; when the ground wire is installed on a ground wire pile (2) in the ground wire box (4), the power supply in the ground wire box (4) is conducted → the locking device (5) starts locking under the action of electromagnetic force, the locking bolt pops out of a locking box body, and the bus side disconnecting link (1) is forbidden to be switched on; when the ground wire is taken down from the ground wire pile (2), the power supply in the ground wire box (4) is disconnected → the locking device (5) loses the electromagnetic force to release the locking → the bus side disconnecting link (1) can be switched on, after the bus side disconnecting link (1) is switched on, the power supply of the isolating switch contact box (3) is disconnected, and the ground wire box (4) loses the electromagnetic force to be closed; and the power supply of the busbar side disconnecting link (1) and the ground wire locking device can select alternating current and direct current according to the actual situation on site.
The invention relates to a transformer substation misoperation prevention device with a ground wire locking device, wherein an isolating switch contact box (3) mainly comprises a moving contact (. largecircle.) arranged at the bottom of a transmission rod of a bus side disconnecting link (1) and a static contact (. largecircle.) arranged on a base of the transmission rod of the bus side disconnecting link, the static contact is two power supply contacts, when the bus side disconnecting link (1) is pulled, the moving contact is connected with the static contact (. largecircle.), a power supply enters the other end from one end, the wiring of all the isolating switch contact boxes (3) is connected in series, all the ground wire boxes (4) are connected in parallel at the tail end of the power supply, when all the bus side disconnecting links (1) are pulled, the power supply is conducted, and all the ground wire boxes (4) are opened.
The invention relates to a transformer substation misoperation prevention device with a ground wire locking device, wherein a ground wire box (4) mainly comprises a box body (40), a ground wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the ground wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40), and the door is opened and closed left and right; an independent power supply is arranged inside each earth box (4), the internal power supply of each earth box (4) is connected with the locking devices connected in parallel in series, and the power supply is conducted to start all the locking devices no matter which group of earth terminals are fixed on the earth pile and the spring moving contact is connected with two power supply contact points.
Drawings
FIG. 1 is a schematic diagram of the electrical connection between the contact box of the isolating switch and the grounding box;
FIG. 2 is a schematic diagram of the circuit connection between the ground box and the latch side disconnecting link after being grounded;
fig. 3 is a schematic diagram of a ground box.
Detailed Description
This embodiment the transformer substation that has ground wire blocking device prevents mistake operating device mainly includes: the device comprises a bus, a ground wire, a bus side disconnecting link (1) and a ground wire pile (2); wherein,
the disconnecting switch contact boxes (3) are correspondingly connected with the bus side disconnecting switches (1) one by one, and after being connected in series, the disconnecting switch contact boxes (3) are connected with the ground wire boxes (4) which are connected in parallel to control the opening and closing of the ground wire boxes (4);
the ground wire box (4), the ground wire box (4) is connected with all the locking devices (5), and the starting of the locking devices (5) is controlled;
the locking devices (5) correspond to the bus side disconnecting links (1) one by one and control the switching-on and switching-off of the bus side disconnecting links (1);
the bus side disconnecting link (1) is pulled open, the isolating switch contact boxes (3) correspondingly connected with the bus side disconnecting link are connected with a power supply, all the bus side disconnecting links (1) are pulled open, the isolating switch contact boxes (3) connected in series are connected with the power supply, at the moment, the ground wire boxes (4) connected with the isolating switch contact boxes (3) in parallel are all connected with the power supply, and the ground wire boxes (4) are opened under the action of electromagnetic force; when the ground wire pile (2) of one of the ground wire boxes (4) is provided with the ground wire, the power supply in the ground wire box (4) is conducted, all the locking devices (5) connected with the ground wire box (4) are all started under the action of electromagnetic force, the locking devices are located at the locking positions, and the disconnecting link (1) on the bus side is forbidden to be switched on.
In the transformer substation anti-misoperation device with the ground wire locking device, the isolating switch contact box (3) comprises a moving contact fixed at the bottom of the transmission rod of the bus side disconnecting link (1) and a contact box fixed on the base of the transmission rod of the bus side disconnecting link (1), and a fixed contact is arranged in the contact box; the static contact is two power contacts.
The transformer substation anti-misoperation device with the ground wire locking device comprises a ground wire box (4), a grounding wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the grounding wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40) and is opened and closed left and right.
In the transformer substation anti-misoperation device with the ground wire locking device, the locking device (5) comprises a locking box body and a locking bolt, and the locking bolt is arranged in the locking box body; the locking bolt is popped out of the box body after being electrified.
The transformer substation anti-misoperation device with the ground wire locking device comprises a switch I (6) connected in series between a ground wire box (4) and a locking device (5); the switch I (6) is a normally closed switch.
The ground wire locking device for the misoperation preventing equipment of the transformer substation mainly comprises a bus side disconnecting link (1) and a ground wire pile (2); wherein,
the disconnecting switch contact boxes (3) are correspondingly connected with the bus side disconnecting switches (1) one by one, and after being connected in series, the disconnecting switch contact boxes (3) are connected with the ground wire boxes (4) which are connected in parallel to control the opening and closing of the ground wire boxes (4);
the ground wire box (4), the ground wire box (4) is connected with all the locking devices (5), and the starting of the locking devices (5) is controlled;
the locking devices (5) correspond to the bus side disconnecting links (1) one by one and control the switching-on and switching-off of the bus side disconnecting links (1);
the bus side disconnecting link (1) is pulled open, the isolating switch contact boxes (3) correspondingly connected with the bus side disconnecting link are connected with a power supply, all the bus side disconnecting links (1) are pulled open, the isolating switch contact boxes (3) connected in series are connected with the power supply, all the earth box (4) connected with the isolating switch contact boxes (3) in parallel are connected with the power supply, and the earth box (4) is opened under the action of electromagnetic force; when the ground wire pile (2) of one of the ground wire boxes (4) is provided with the ground wire, the power supply in the ground wire box (4) is conducted, all the locking devices (5) connected with the ground wire box (4) are all started under the action of electromagnetic force, the locking devices are located at the locking positions, and the disconnecting link (1) on the bus side is forbidden to be switched on.
The embodiment is used for a ground wire locking device of misoperation prevention equipment of a transformer substation, wherein the isolating switch contact box (3) comprises a moving contact fixed on the bottom of a transmission rod of the bus side disconnecting link (1) and a contact box fixed on a base of the transmission rod of the bus side disconnecting link (1), and a static contact is arranged in the contact box; the static contact is two power contacts.
The ground wire locking device for the misoperation preventing equipment of the transformer substation is characterized in that the ground wire box (4) mainly comprises a box body (40), a ground wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the ground wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40) and is opened and closed left and right.
The ground wire locking device for the misoperation preventing equipment of the transformer substation is characterized in that the locking device (5) comprises a locking box body and a locking bolt, and the locking bolt is arranged in the locking box body; the locking bolt is popped out of the locking box body after being electrified.
The ground wire locking device for the substation misoperation preventing equipment comprises a ground wire box (4), a locking device (5) and a switch I (6) which is connected in series, wherein the switch I is arranged between the ground wire box and the locking device; the switch I (6) is a normally closed switch; normally, the switch I (6) is closed and locked, and the switch I (6) can be unlocked and disconnected only when the bus side disconnecting link (1) is overhauled (a transmission test and a three-phase same-period test of the bus side disconnecting link (1)).
The transformer substation anti-misoperation device with the ground wire locking device mainly comprises a ground wire box (4) additionally arranged on a ground wire pile, an isolating switch contact box (3) and a locking device (5) additionally arranged on the lower portion of a transmission rod of a bus side disconnecting switch (1), and locking is formed through electrical connection. When a bus (line) needs to be provided with a ground wire, if any group of bus side disconnecting switches (1) on the bus (line) is not disconnected, the ground wire box (4) is closed, the opening and closing of the ground wire box (4) is controlled by the isolating switch contact box (3) at the lower part of the transmission rod of the bus side disconnecting switch (1), only when the bus side disconnecting switches (1) are completely disconnected, the ground wire box (4) can be opened, and at the moment, the electricity testing is allowed to hang the ground wire; when the ground wire is connected to a ground wire pile (2) in a ground wire box (4), the ground wire presses a spring movable contact piece (42) to contact two power supply contacts (43), the power supply of a locking device (5) is conducted, the locking device (5) starts locking, a locking bolt in the locking device (5) is popped out and clamped at the lower end of a transmission rod of a bus side disconnecting link (1), and the bus side disconnecting link (1) is forbidden to be switched on.
The transformer substation anti-misoperation device with the ground wire locking device comprises a disconnecting switch contact box (3), a ground wire box (4) and a locking device (5), wherein the relation among the disconnecting switch contact box, the ground wire box and the locking device is as follows: the bus side disconnecting link (1) is pulled open, the power supply of the isolating switch contact box (3) is conducted → the ground wire box (4) is opened under the action of magnetic force; when the ground wire is installed on a ground wire pile (2) in the ground wire box (4), the power supply in the ground wire box (4) is conducted → the locking device (5) starts locking under the action of electromagnetic force, the locking bolt pops out of a locking box body, and the bus side disconnecting link (1) is forbidden to be switched on; when the ground wire is taken down from the ground wire pile (2), the power supply in the ground wire box (4) is disconnected → the locking device (5) loses the electromagnetic force to release the locking → the bus side disconnecting link (1) can be switched on, after the bus side disconnecting link (1) is switched on, the power supply of the isolating switch contact box (3) is disconnected, and the ground wire box (4) loses the electromagnetic force to be closed; and the power supply of the busbar side disconnecting link (1) and the ground wire locking device can select alternating current and direct current according to the actual situation on site.
The transformer substation misoperation preventing equipment with the ground wire locking device comprises a disconnecting switch contact box (3), wherein the disconnecting switch contact box mainly comprises a moving contact (. largecircle.) arranged at the bottom of a transmission rod of a bus side disconnecting link (1) and a static contact (. largecircle.) arranged on a base of the transmission rod of the bus side disconnecting link, the static contact is two power supply contacts, when the bus side disconnecting link (1) is pulled, the moving contact is connected with the static contact (. largecircle.), a power supply enters the other end from one end, all the connecting wires of the disconnecting switch contact box (3) are connected in series, all the ground wire boxes (4) are connected in parallel at the tail end of the power supply, when all the bus side disconnecting links (1) are pulled, the power supply is conducted, and all the ground wire boxes (4) are opened.
In the transformer substation anti-misoperation device with the ground wire locking device, the ground wire box (4) mainly comprises a box body (40), a ground wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the ground wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40), and the door is opened and closed left and right; an independent power supply is arranged inside each earth box (4), the internal power supply of each earth box (4) is connected with the locking devices connected in parallel in series, and the power supply is conducted to start all the locking devices no matter which group of earth terminals are fixed on the earth pile and the spring moving contact is connected with two power supply contact points.
Claims (8)
1. A transformer substation anti-misoperation device with a ground wire locking device mainly comprises: the device comprises a bus, a ground wire, a bus side disconnecting link (1) and a ground wire pile (2); the method is characterized in that:
the disconnecting switch contact boxes (3) are correspondingly connected with the bus side disconnecting switches (1) one by one, and after being connected in series, the disconnecting switch contact boxes (3) are connected with the ground wire boxes (4) which are connected in parallel to control the opening and closing of the ground wire boxes (4);
the ground wire box (4), the ground wire box (4) is connected with all the locking devices (5) and controls the starting of the locking devices (5); the ground wire box (4) mainly comprises a box body (40), a ground wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the ground wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40), and the door is opened and closed left and right;
the locking devices (5) correspond to the bus side disconnecting links (1) one by one and control the switching-on and switching-off of the bus side disconnecting links (1);
the bus side disconnecting link (1) is pulled open, the isolating switch contact boxes (3) correspondingly connected with the bus side disconnecting link are connected with a power supply, all the bus side disconnecting links (1) are pulled open, the isolating switch contact boxes (3) connected in series are connected with the power supply, at the moment, the ground wire box (4) connected with the isolating switch contact boxes (3) is connected with the power supply, and the ground wire box (4) opens the door under the action of electromagnetic force; when the ground wire pile (2) of one of the ground wire boxes (4) is provided with the ground wire, the power supply in the ground wire box (4) is conducted, all the locking devices (5) connected with the ground wire box (4) are all started under the action of electromagnetic force, and are in the locking position, and all the disconnecting links (1) on the bus side are forbidden to be switched on.
2. The substation anti-misoperation device with ground wire locking device according to claim 1, characterized in that: the isolating switch contact box (3) comprises a moving contact fixed on the bottom of the transmission rod of the bus side disconnecting link (1) and a contact box fixed on the base of the transmission rod of the bus side disconnecting link (1), and a static contact is arranged in the contact box; the static contact is two power contacts.
3. The substation anti-misoperation device with ground wire locking device according to claim 1, characterized in that: the locking device (5) comprises a locking box body and a locking bolt, and the locking bolt is arranged in the locking box body; the locking bolt is popped out of the box body after being electrified.
4. The substation anti-misoperation device with ground wire locking device according to claim 1, characterized in that: a switch I (6) is connected in series between the ground wire box (4) and the locking device (5); the switch I (6) is a normally closed switch.
5. A ground wire locking device for misoperation preventing equipment of a transformer substation mainly comprises a bus side disconnecting link (1) and a ground wire pile (2); the method is characterized in that:
the disconnecting switch contact boxes (3) are correspondingly connected with the bus side disconnecting switches (1) one by one, and after being connected in series, the disconnecting switch contact boxes (3) are connected with the ground wire boxes (4) which are connected in parallel to control the opening and closing of the ground wire boxes (4);
the ground wire box (4), the ground wire box (4) is connected with all the locking devices (5) and controls the starting of the locking devices (5); the ground wire box (4) mainly comprises a box body (40), a ground wire pile (2), a spring movable contact piece (42) and two power supply contacts (43), wherein the ground wire pile (2) and the spring movable contact piece (42) are arranged in the box body (40), and the two power supply contacts (43) are arranged on the inner bottom surface of the box body (40) and are higher than the inner bottom surface; the door of the box body (40) is arranged on the side surface of the box body (40), and the door is opened and closed left and right;
the locking devices (5) correspond to the bus side disconnecting links (1) one by one and control the switching-on and switching-off of the bus side disconnecting links (1);
the bus side disconnecting link (1) is pulled open, the isolating switch contact boxes (3) correspondingly connected with the bus side disconnecting link are connected with a power supply, all the bus side disconnecting links (1) are pulled open, the isolating switch contact boxes (3) connected in series are connected with the power supply, at the moment, the ground wire box (4) connected with the isolating switch contact boxes (3) is connected with the power supply, and the ground wire box (4) opens the door under the action of electromagnetic force; when the ground wire pile (2) of one of the ground wire boxes (4) is provided with the ground wire, the power supply in the ground wire box (4) is conducted, all the locking devices (5) connected with the ground wire box (4) are all started under the action of electromagnetic force, the locking devices are located at the locking positions, and the disconnecting link (1) on the bus side is forbidden to be switched on.
6. The ground wire locking device for substation anti-misoperation equipment according to claim 5, characterized in that: the isolating switch contact box (3) comprises a moving contact fixed on the bottom of the transmission rod of the bus side disconnecting link (1) and a contact box fixed on the base of the transmission rod of the bus side disconnecting link (1), and a static contact is arranged in the contact box; the static contact is two power contacts.
7. The ground wire locking device for substation anti-misoperation equipment according to claim 5, characterized in that: the locking device (5) comprises a locking box body and a locking bolt, and the locking bolt is arranged in the locking box body; the locking bolt is popped out of the box body after being electrified.
8. The ground wire locking device for substation anti-misoperation equipment according to claim 5, characterized in that: a switch I (6) is connected in series between the ground wire box (4) and the locking device (5); the switch I (6) is a normally closed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108518.3A CN102760594B (en) | 2011-04-28 | 2011-04-28 | Transformer substation misoperation preventer and ground wire locking device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110108518.3A CN102760594B (en) | 2011-04-28 | 2011-04-28 | Transformer substation misoperation preventer and ground wire locking device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102760594A CN102760594A (en) | 2012-10-31 |
| CN102760594B true CN102760594B (en) | 2014-10-08 |
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| CN201110108518.3A Active CN102760594B (en) | 2011-04-28 | 2011-04-28 | Transformer substation misoperation preventer and ground wire locking device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104934860A (en) * | 2014-03-20 | 2015-09-23 | 国家电网公司 | Electric power system safety device |
| CN109510067B (en) * | 2019-01-11 | 2024-08-02 | 广东电网有限责任公司 | Device and equipment for preventing misoperation and locking between stations |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777729Y (en) * | 2005-04-14 | 2006-05-03 | 张殿勇 | Interlock controller for preventing live laying ground wire and switching-on with ground wire |
| CN202076686U (en) * | 2011-04-28 | 2011-12-14 | 辽宁省电力有限公司本溪供电公司 | Substation misoperation prevention equipment and ground wire locking device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7209331B2 (en) * | 2005-05-05 | 2007-04-24 | Southern California Technology, Inc. | Method and power feed for electrical inspections |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777729Y (en) * | 2005-04-14 | 2006-05-03 | 张殿勇 | Interlock controller for preventing live laying ground wire and switching-on with ground wire |
| CN202076686U (en) * | 2011-04-28 | 2011-12-14 | 辽宁省电力有限公司本溪供电公司 | Substation misoperation prevention equipment and ground wire locking device thereof |
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| CN102760594A (en) | 2012-10-31 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121023 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121023 Address after: The Big Valley District 117000 in Liaoning province Benxi City Mingshan District Applicant after: Benxi Power Supply Company of Liaoning Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: The Big Valley District 117000 in Liaoning province Benxi City Mingshan District Applicant before: Benxi Power Supply Company of Liaoning Electric Power Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |