RU190057U1 - ELECTRIC TRAIN TRUCK - Google Patents

Abstract

The utility model relates to railway transport and concerns the design of electric trains intended for passenger traffic in AC and DC networks, in particular, for accelerated interregional communication on adjacent sections of railways electrified by different current types (with a DC voltage of 3 kV and an AC voltage of 25 kV with a frequency of 50 Hz). The electric train is two-system, made with the ability to work from the networks of direct and alternating current, contains the head motor with Control ins intermediate trailer with a traction equipment, including a high-speed switch, the main switch with integrated earthing switch AC grounding disconnector and DC current collector on each carriage and intermediate carriages trailed medium. The electric train is equipped with electrical equipment and a security system for electrical equipment, including safety barriers made in the form of shells of electrical containers and blocking. The electrical equipment blocking is combined: part of the electrical equipment supplied by the equipment manufacturer in containers equipped with locking mechanisms and folding ladders for access to the roofs of electric train cars are made with electromechanical key interlocking, part of electrical equipment requiring regular access is made with electrical interlocks using electromechanical end switches and locking hatches for maintenance of hazardous areas of containers by electromagnetic devices, part of the electrical equipment, located on the roofs of electric train cars, is made with screw connections. The electromechanical key interlocking is a combination of a lock operating switch, key dispensing devices, locking mechanisms and keys to locking mechanisms, including locking mechanisms with two cylinder mechanisms of grounding DC and AC disconnectors and locking mechanisms of folding ladders for access to the roofs of electric train carriages and provides consistent access to electrical equipment during its maintenance. Electrical circuits of electrical interlocks with electromechanical limit switches and locking electromagnetic devices are integrated into electrical circuits of an electromechanical key interlock. The indicated technical result is achieved by the fact that the technical result consists in the possibility of using equipment with different types of interlocks, such as electromechanical key interlocking and electrical interlocks with electromechanical limit switches together with lektromagnitnymi fixation devices, circuits which are integrated into the electric circuit of the electromechanical locking key and screw connections service hatches.

Description

The utility model relates to railway transport and concerns the design of electric trains intended for passenger traffic in AC and DC networks, in particular, for accelerated interregional communication on adjacent sections of railways electrified by different current types (with a DC voltage of 3 kV and an AC voltage of 25 kV with a frequency of 50 Hz).

The electric train Desiro Rus of Siemens company is known (see Desiro Rus A6Z00033062562 version E Operator's Manual October 10, 2014 and V. Ziegler, R. Mangler. Desiro RUS is a promising suburban electric train. World Railways - 2012, No. 4). This electric train is designed for dual-system operation - in a 3 kV DC network and in a 25 kV AC network with a frequency of 50 Hz.

The configuration of the main train consists of five different types of cars equipped with electrical equipment:

- two head motor cars A and B with control cabs;

- two trailed intermediate cars C and E with traction equipment;

- one trailed average wagon D.

The electric train is a multi-component vehicle due to its large composition. Electrical equipment is located in the roof, interior and sub-body spaces of the cars and in the control cabs of the electric train. Low-voltage electrical equipment is predominantly located inside the electric train in the shells of the inside car cabinets and inner-ceiling containers, and the high-voltage one is placed in the shell of the containers and only outside: on the roof of the cars and in the sub body space. The electrical equipment of the electric train includes, one by one, the trailed intermediate cars C and E, a high-speed switch, a grounding DC disconnecting switch, a main switch with a built-in AC grounding disconnector and a current collector. The electric train is equipped with a security system for electrical equipment, including the shells of electric containers and an electromechanical key lock, which is a combination of a lock operating switch, devices for issuing keys, lock mechanisms and keys to lock mechanisms, including lock mechanisms with two cylinder mechanisms for DC and AC grounding disconnectors and locking mechanisms of the shells of electric containers, and providing consistent access to electric udovaniyu during maintenance. At the same time, the locking mechanisms of grounding disconnectors of the same type of current are equipped with different cylinder mechanisms to ensure consistent grounding when accessing electrical equipment. According to GOST R 52278-2004, equipment safety is a property of electric rolling stock equipment to comply with safety requirements during operation, maintenance and repair under the conditions established in the regulatory, design and technological documentation. Electrical components with a DC voltage of 3 kV, an AC voltage of 25 kV with a frequency of 50 Hz and a three-phase voltage of 380 V with a frequency of 50 Hz are of danger to the staff. In order to exclude the supply of high voltage to the electric train when inspecting high-voltage electrical equipment, as well as during repair and commissioning works, the grounding process is performed using an electromechanical key lock. At the same time, the high-speed and main switches must be turned off and the current collectors lowered. 8 types of keys with the symbols "A", "B", "C", "D", "E", "F", "G" and "H" are involved in the equipment security system. The working key switch is installed in the ceiling of the trailer intermediate car C, the “F” and “H” key dispensers are in the body container of the electric equipment of the trailer middle car D, and the high-speed switches, grounding DC disconnectors and main switches with built-in grounding AC disconnectors are on roofs of trailed intermediate cars C and E with access from the inside of the cars to the lock mechanisms with two cylinder mechanisms of grounding disconnectors constantly and on the AC. The keys "A" and "G" are located in the working lock switch. The keys "C" and "E" are located in the locking mechanisms with two cylinder mechanisms of the grounding AC disconnectors of the main switches of the trailer intermediate cars C and E, respectively. The keys "B" and "D" are located in the locking mechanisms with two cylinder mechanisms of the grounding DC disconnectors of the trailed intermediate cars C and E, respectively. The keys "F" are intended for access to electrical equipment with a voltage of 3 kV DC or 25 kV AC at 50 Hz, and the keys "H" for access to electrical equipment of three-phase voltage 380 V with a frequency of 50 Hz. The keys "F" and "H" are located in the devices for issuing these keys, made in a single package. In each of the above-mentioned electrical apparatus with a locking mechanism with two cylinder mechanisms, one of the cylinder mechanisms in the initial state is free and ready to accept the corresponding key. The grounding process begins with the transfer of the key from the position of removing the key "A" from the working key switch. As a result, the following occurs: forced shutdown of all high-speed switches or main switches, depending on which current system the electric train is connected to through current collectors, forced lowering of all current collectors, if this action was not performed by the driver. Turning the key "G" in the working lock switch turns off the power from an external source of 380 V. By successive key manipulation of the working lock switch along the chain: the grounding DC switchboard of the car C — the grounding switch of the alternating current of the car C — the grounding switch of the direct current of the car E — grounding The switch of the alternating current of the car E is provided by installing and turning the key "E" in the device issuing the keys "F"; containers for access to a high voltage electrical voltage of 3 kV DC or 25 kV AC voltage at 50 Hz. After that, installing the “H” key dispenser in two free cylinder mechanisms and turning the “G” and “F” keys unlocks the “H” keys for access to the electrical equipment of the three-phase voltage 380 V with a frequency of 50 Hz. After all the work is completed, I need to bring the electric train into a state of readiness for operation, the grounding procedure can be canceled in exactly the reverse order.

A disadvantage of the known electric train is that the trailed intermediate cars C and E, positionally symmetrical relative to the trailed middle car D, are asymmetrical in the arrangement of electrical equipment due to the use of DC grounding disconnectors and main switches with built-in grounding AC disconnectors with lock mechanisms equipped different cylinder mechanisms. The big drawback is the inability to use electrical equipment with different types of locks, the presence of a large number of keys of different types, which complicates the work of unlocking electrical equipment, the possibility of losing some keys, the high cost of locking components using only electromechanical key locking.

The closest to the claimed utility model is a two-system electric train (see RF Patent for useful model No. 186405, class N05K 5/00, H01M 2/02, publ. 01/01/2019 Bulletin No. 3, application No. 20112121669 of 06/13/2018) , which contains the head, trailer intermediate and middle trailer cars, equipped with electrical equipment. Each trailer intermediate car is equipped with one current collector, a high-speed circuit breaker, a grounding DC disconnect switch, and a main switch with an integrated AC ground disconnect switch. The electric train is made with an electrical safety system. The electrical equipment safety system includes shells of electric containers and an electromechanical key interlock, which is a combination of a working lock switch, including a working switch for turning off high-speed switches and main switches and a working switch for disconnecting power from an external source, devices for issuing keys, locking mechanisms and keys to lock mechanisms including locking mechanisms with two cylinder mechanisms of grounding disconnector AC and DC, respectively, and locking mechanisms shells electrical containers. Current collection is made by current collectors. To switch from off to on and back, the DC and AC grounding disconnectors are equipped with handles, respectively. In the security system of electrical equipment involved seven types of keys with the symbols "A", "B", "D", "E", "F", "G" and "H". One of the operating switches is actuated by the key "A", and the other - the operating switch - by the key "G". The electrical safety system provides consistent access to electrical equipment during its maintenance. The configuration of electrical equipment in terms of current collectors, high-speed switches, grounding DC disconnectors and main switches with built-in AC grounding disconnectors placed in trailing intermediate cars is symmetrical with respect to the average trailer carriage, grounding disconnectors of the same kind of current are equipped with the same locking mechanisms with two cylinder mechanisms and keys to them, and the working key switch is placed on the average trailer m carriage, which also installed additional key issuing apparatus designed to interact with locking mechanisms grounding disconnectors DC. Devices for issuing keys "F" and "H" are located in the body container of electrical equipment of an average trailer car and are combined into a single unit. In the ground state of the DC disconnectors in the initial state, the keys "E" are located in the cylinder mechanisms, and one of the cylinder mechanisms is free and ready to accept the corresponding key. In the ground state of the AC disconnectors in the initial state, the keys "D" are located in the cylinder mechanisms, and the free cylinder mechanisms are ready to accept the corresponding key. To unlock the key issuing device "F", two free cylinder mechanisms for keys "D" are placed in it, and for the device for issuing keys "H" - two free cylinder mechanisms for keys "F" and "G".

Before accessing electrical equipment placed in the shells of electrical containers, you must turn off the fast and main switches and lower the current collectors. The grounding process begins with removing the key "A" from the operating switch. As a result, the following occurs - forced shutdown of all high-speed switches and main switches, forced lowering of all current collectors, if this action was not performed earlier. The key "A" is inserted into the free cylinder mechanism of the locking mechanism, the device for issuing the keys "B" to unlock the two keys "B". The keys "B" are inserted into the free cylinder mechanisms of the locking devices of the DC earthing switches, which are manually transferred with the corresponding handles to the on position, which leads to the earthing of electrical equipment with a DC voltage of 3 kV. Two keys "E" are removed from the cylinder mechanisms of the locking mechanisms of the DC earthing switches, inserted into the free cylinder mechanisms of the lock mechanisms of the AC grounding disconnectors, which are transferred to the on position with the corresponding handles, which leads to an electrical grounding of 25 kV AC voltage of 50 Hz. Two keys "D" are removed from the cylinder mechanisms of the lock mechanisms of the AC grounding disconnectors and inserted into the two free cylinder mechanisms of the "F" key dispenser to unlock the keys "F" for access to containers with a DC voltage of 3 kV and an alternating current of 25 kV frequency 50 Hz by unlocking the locking mechanisms of their shells. In this way, electrical equipment is grounded with a DC voltage of 3 kV and an alternating current of 25 kV with a frequency of 50 Hz, and at the same time it is possible to carry out work and tests from an external power source with a three-phase voltage of 380 V and a frequency of 50 Hz. The key "G" is intended for access to containers with electrical equipment with a three-phase voltage of 380 V with a frequency of 50 Hz. Turning the key "G" in the working locking switch turns off the power from an external source with a three-phase voltage of 380 V and 50 Hz and creates an electrical grounding of 380 V. By installing the key "G" and one of the keys "F" in the free cylinder mechanisms of the device issuing keys "N "keys" H "are unblocked for access to containers with electrical equipment with a three-phase voltage of 380 V and frequency of 50 Hz. After the completion of all work and the need to bring the train into a state of readiness for operation, the grounding procedure can be canceled in exactly the reverse order,

A disadvantage of the known electric train is the impossibility of using electrical equipment with different types of locks, the presence of a large number of keys of different types, which complicates the work of unlocking electrical equipment, the possibility of losing some keys, the high cost of locking components using only electromechanical key lock.

The technical result achieved using the claimed utility model is the possibility of using in electric rolling stock equipment with various types of interlocks such as electromechanical key interlocking and electrical interlocks with electromechanical limit switches together with electromagnetic locking devices whose electrical circuits are integrated into the electrical circuits of an electromechanical key interlock, and screw connections of service hatches.

The technical result is achieved as follows. The two-system electric train, designed to operate from AC and AC networks, contains motor heads with control cabins, trailers with traction equipment, including a high-speed switch, a main switch with an integrated AC grounding disconnector, a grounding DC disconnector and a current collector for each wagon, and average trailer intermediate wagons. The electric train is equipped with electrical equipment and a security system for electrical equipment, including safety barriers made in the form of shells of electrical containers and blocking. The electrical equipment blocking is combined: part of the electrical equipment supplied by the equipment manufacturer in containers equipped with locking mechanisms and folding ladders for access to the roofs of electric train cars are made with electromechanical key interlocking, part of electrical equipment requiring regular access is made with electrical interlocks using electromechanical end switches and locking hatches for maintenance of hazardous areas of containers by electromagnetic devices, part of the electrical equipment, located on the roofs of electric train cars, is made with screw connections. The electromechanical key interlocking is a combination of a lock operating switch, key dispensing devices, locking mechanisms and keys to locking mechanisms, including locking mechanisms with two cylinder mechanisms of grounding DC and AC disconnectors and locking mechanisms of folding ladders for access to the roofs of electric train carriages and provides consistent access to electrical equipment during its maintenance. Electrical circuits of electrical interlocks with electromechanical limit switches and locking electromagnetic devices are integrated into electrical circuits of electromechanical key interlocking.

The essence of the claimed utility model is illustrated in the drawing, where in FIG. 1 shows a general view of an electric train.

Due to the fact that the graphic image of the figure of the claimed utility model is difficult to read when the long sides of the sheet are vertically arranged, it was advisable to arrange the sheet horizontally, which made it possible to significantly enlarge the drawing.

The two-system electric train 1 is designed to operate from dc and ac networks and contains motor heads with 2.1 and 2.2 control cabins, trailers with traction equipment 3.1 and 3.2, and middle trailed intermediate cars 4 and is equipped with electrical equipment 5 and security system 6 electrical equipment 5. When This part of the equipment of trailed intermediate cars with traction equipment 3.1 and 3.2 includes high-speed switches 7.1 and 7.2, main switches 8.1 and 8.2 with built-in grounding disconnectors AC telyami 9.1 and 9.2, earthing switches DC 10.1 and 10.2 or 11.1 and 11.2 pantographs. Trailer intermediate cars with traction equipment 3.1 and 3.2 are equipped with folding ladders 12.1 and 12.2 with locking mechanisms 13.1 and 13.2, respectively. In terms of the depot, when passenger traffic increases, it is possible to add an additional trailer intermediate car 4 to the electric train 1 and change the basic composition to a six-car. Due to the absence of a current collector, a main switch and a high-speed switch as part of an additional trailer car 4, the security system does not undergo changes when forming a six-car composite train. In areas with high passenger traffic it is possible to connect two electric trains 1 into one train. The components of electrical equipment 5 with a DC voltage of 3 kV and an alternating current of 25 kV and 380 V with a frequency of 50 Hz are dangerous for the personnel of the electric train 1, therefore it is necessary to ensure the safety of the equipment. Security system 6 of electrical equipment 5 includes guards 14 and locks 15. Guards 14 are made in the form of shells 16.1, 16.2, 16.3, 16.4, 16.5, 17.1, 17.2, 18.1, 18.2, 19.1, 19.2, 19.3, 19.4 and 19.5 electrical containers 20.1 , 20.2, 20.3, 20.4, 20.5, 21.1, 21.2, 22.1, 22.2, 23.1, 23.2, 23.3, 23.4 and 23.5. Climatic installations 24.1 and 24.2 of the control cabins of head motor cars 2.1 and 2.2 are also components operating under high voltage. Containers 23.1, 23.2, 23.3, 23.4 and 23.5 are climatic installations of passenger compartments of cars 2.1, 2.2, 3.1, 3.2 and 4. Electric equipment lock 15 is made combined: a part of electrical equipment, including containers 21.1, 21.2, 22.1 and 22.2, grounding AC disconnectors current 9.1 and 9.2, built into the main switches 8.1 and 8.2, and earthing DC disconnectors 10.1 and 10.2, coming from the manufacturer of the equipment with equipment locking mechanisms 25.1, 25.2, 26.1, 26.2,

27.1, 27.2, 28.1 and 28.2 and folding ladders 12.1 and 12.2 with locking mechanisms 13.1 and 13.2 for access to the roofs of cars 2.1, 2.2, 3.1, 3.2 and 4 electric trains 1, are made with electromechanical key lock 29, part of electrical equipment, including electric containers 20.1 ,

20.2, 20.3, 20.4 and 20.5, requiring regular access, is made with electrical interlocks using electromechanical limit switches 30 and locking service access hatches of hazardous areas of containers 20.1, 20.2, 20.3, 20.4 and 20.5 with electromagnetic devices 31, a part of electrical equipment including containers 23.1, 23.2, 23.3, 23.4 and 23.5, located on the roofs of cars 2.1, 2.2, 3.1, 3.2 and 4 electric trains 1, and air-conditioning units 24.1 and 24.2 of the control cabins of the head motor cars 2.1 and 2.2 are made with screw connections 32. The electrical interlock with Electromechanical limit switches 30 are more resistant to mechanical external influencing factors and better protected from the influence of external electromagnetic fields in comparison with other electrical interlocks, for example, with the help of reed switches, which are characterized by contact bounce, a series of uncontrolled losses and acquisitions are observed contact and susceptibility to external electromagnetic fields. Containers 21.1 and 21.2 are electrical equipment with traction converters, and containers 22.1 and 22.2 are electrical equipment with auxiliary converters. Containers 20.1, 20.2, 20.3, 20.4 and 20.5 consist of high-voltage and low-voltage sections. Containers with traction converters 21.1 and 21.2 come from the manufacturer of the equipment with locking mechanisms 25.1 and 25.2, during opening operations of which the supply of 3 kV voltage to electrical equipment should be stopped, and containers with converters of auxiliary needs 22.1 and 22.2 come from the manufacturer of the equipment with locking mechanisms 26.1 and 26.2, during the opening operations of which the supply of 380 V to the electrical equipment must be stopped. The electromechanical key interlock 29 is a combination of a lock operating switch 33, key issuing devices 34 and 35, locking mechanisms 13.1, 13.2, 25.1, 25.2, 26.1, 26.2, 27.1, 27.2, 28.1 and 28.2 and keys "A" 36, "B" 37, "D" 38, "E" 39, "F" 40, "G" 41 and "H" 42 to the locking mechanisms and provides consistent access to electrical equipment 5 during its maintenance. Consolidation of service manholes for containers 20.1, 20.2,

20.3, 20.4 and 20.5 are made by non-security system 6 electrical equipment 5 identical compression locks 43 using a universal key 44 (not shown) with a square end stored in members of the locomotive crew. Electrical circuits of electromechanical limit switches 30 and locking electromagnetic devices 31 are integrated into electrical circuits 45 of an electromechanical key interlock 29. The ground DC disconnectors 10.1 and 10.2 are equipped with locking mechanisms 27.1 and 27.2, respectively, with two cylinder mechanisms 46.1 and 46.2, 46.3 and

46.4, respectively. Integrated in the main switches 8.1 and 8.2, the AC 9.1 and 9.2 earthing isolators are equipped with locking mechanisms 28.1 and 28.2, respectively, with two cylinder mechanisms 47.1 and 47.2, 47.3 and 47.4, respectively. In the locking mechanisms 27.1 and 27.2 of the grounding DC disconnectors in the initial position, the cylinder mechanisms 46.1 and 46.3 are occupied by the keys "E" 39, and the cylinder mechanisms 46.2 and 46.4 are free. In the locking mechanisms 28.1 and 28.2, the grounding disconnectors of alternating current 9.1 and 9.2 in the initial position the cylinder mechanisms 47.1 and 47.3 are occupied by keys "D" 38, and the cylinder mechanisms 47.2 and 47.4 are free. In the initial position in the working lock switch 33 in the cylinder mechanisms 48 and 49 are keys "A" 36 and "G" 41, respectively, and in the device issuing keys 34 - in the cylinder mechanisms 50 and 51 two keys "B" 37, and in the key output device 34 has a free cylinder mechanism 52. The cylinder mechanisms 48 and 49 are operating switches. The key issuing device 35 is composed of two key issuing devices 53 and 54 and is located in the container 20.3 in the sub body space of the middle trailed intermediate car 4. The operating key switch 33 and the key issuing device 34 are located in the ceiling of the middle trailed intermediate car 4. In the key dispenser 53 The keys "F" 40 are placed and there are two free cylinder mechanisms for accepting two keys "D" 38 from the lock mechanisms 28.1 and 28.2 of the grounding disconnectors of alternating current 9.1 and 9.2. In the key issuing device 54, the keys "H" 42 are placed and there are two free places for accepting the key "G" 41 from the working lock switch 33 and the key "F" 40 from the key issuing device 53. To switch from off to on and back grounding AC 9.1 and 9.2 and DC 10.1 and 10.2 disconnectors are equipped with handles 55.1 and 55.2, 56.1 and 56.2, respectively.

Before accessing the electrical equipment 5, fast-acting 7.1 and 7.2 and main 8.1 and 8.2 switches must be turned off, and current collectors 11.1 and 11.2 must be lowered. The grounding process begins with the removal of the key "A" 36 from the cylinder mechanism 48 of the working lock switch 33. As a result, the following occurs: forced shutdown of the high-speed switches 7.1 and 7.2 and the main switches 8.1 and 8.2, forced lowering of the current collectors 11.1 and 11.2, if this action was not completed earlier. The key "A" 36 is inserted into the free cylinder mechanism 52 of the key issuing device 34 to unlock two keys "B" 37. The keys "B" 37 are inserted into the free cylinder mechanisms 46.2 and 46.4 of the lock devices 27.1 and 27.2 of the grounding DC disconnectors 10.1 and 10.2, which are manually transferred to the on position by handles 55.1 and 55.2, which leads to electrical equipment grounding with a DC voltage of 3 kV. The two keys "E" 39 are removed from the cylinder mechanisms 46.1 and 46.3 of the lock mechanisms 27.1 and 27.2 of the grounding DC disconnectors 10.1 and 10.2, inserted into the free cylinder mechanisms 47.2 and 47.4 of the lock mechanisms 28.1 and 28.2 of the grounding AC disconnectors 8.1 and 8.2, which have the knobs 56.1 and 56.2 are transferred to the on position, which leads to the grounding of electrical equipment with an AC voltage of 25 kV and a frequency of 50 Hz. Two keys "D" 38 are removed from the cylinder mechanisms 47.1 and 47.3 of the lock mechanisms 28.1 and 28.2 of the grounding AC disconnectors 8.1 and 8.2 and inserted into the two free cylinder mechanisms of the key issuing device 53 to unlock the keys "F" 40 for access to electrical equipment with a constant voltage 3 kV current and 25 kV alternating current with 50 Hz frequency by unlocking locking mechanisms 25.1 and 25.2 of containers 21.1 and 21.2. In this way, electrical equipment is grounded with a DC voltage of 3 kV and an alternating current of 25 kV with a frequency of 50 Hz, and at the same time it is possible to carry out work and tests from an external power source with a three-phase voltage of 380 V and a frequency of 50 Hz. Key "G" 41 is designed for access to containers with electrical equipment with a three-phase voltage of 380 V with a frequency of 50 Hz. Turning the key "G" 41 in the cylinder mechanism 49 of the working lock switch 33 turns off the power from an external source with a three-phase voltage of 380 V and a frequency of 50 Hz and creates electrical equipment grounding of 380 V. By installing the key "G" 41 and one of the keys "F" 40 to free the cylinder mechanisms of the key issuing device 54 unlock the keys "H" 42 for access to containers with electrical equipment with a three-phase voltage of 380 V and 50 Hz frequency and electrical equipment located on the roofs of cars 2.1, 2.2, 3.1, 3.2 and 4 by opening lock mechanisms 13.1 and 13.2 with the subsequent layout of folding ladders 12.1 and 12.2. When attempting to abnormally access the containers 20.1, 20.2, 20.3, 20.4 and 20.5, when the electromechanical key interlock 29 is in the initial state, the electrical interlocks with electromechanical limit switches 30 will trigger, which will lead to the cessation of voltage supply to the specified containers. Attempted abnormal access to containers 20.1, 20.2, 20.3, 20.4 and 20.5 will also be suppressed by locking electromagnetic devices 31. Putting the electric train into a state of readiness for operation with cancellation of the grounding procedure is performed in the reverse order. The total number of keys in the key issuing devices for access to 3 kV and 380 V containers is determined by the number of these containers and folding ladders for access to the roofs of electric train cars. The total number of keys is 12 for the main minimum five-car composition of the electric train. To facilitate identification, keys and locking mechanisms are color-coded.

Claims (1)

Two-system electric train, made with the possibility of operating from AC and AC networks, contains motor heads with control cabins, trailers with traction equipment, including a high-speed switch, main switch with built-in AC grounding disconnector, grounding DC disconnector and current collector for each wagon, and intermediate trailed intermediate wagons, and equipped with electrical equipment and electrical safety systems, including protective enclosures and interlocks made in the form of shells of electric containers and an electromechanical key interlock, which is a combination of a lock operating switch, devices for issuing keys, locking mechanisms and keys to locking mechanisms, including locking mechanisms with two cylinder mechanisms of grounding disconnectors of constant and alternating current and locking mechanisms of folding ladders for access to the roofs of electric train cars, and providing consistent access to electrical Equipment for its maintenance, characterized in that the blocking of electrical equipment is combined: part of the electrical equipment supplied by the equipment manufacturer in containers equipped with locking mechanisms and folding ladders for access to the roofs of electric train cars are made with electromechanical key interlocking, part of electrical equipment requiring regular access , made with electrical interlocks using electromechanical limit switches and locking hatch and maintenance of hazardous areas of containers with electromagnetic devices, a part of electrical equipment located on the roofs of electric train cars, is made with screw connections, while the electrical circuits of electrical interlocks with electromechanical limit switches and locking electromagnetic devices are integrated into electrical circuits of electromechanical key interlocking.

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