CN211606105U - Shipborne low-voltage single-loop shore power box - Google Patents
Shipborne low-voltage single-loop shore power box Download PDFInfo
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- CN211606105U CN211606105U CN202020486171.0U CN202020486171U CN211606105U CN 211606105 U CN211606105 U CN 211606105U CN 202020486171 U CN202020486171 U CN 202020486171U CN 211606105 U CN211606105 U CN 211606105U
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Abstract
The utility model discloses a ship-borne low-voltage single-loop shore power box, which comprises a circuit breaker Q, a socket XP, a self-locking button S, a current monitoring relay 1K, a current transformer 1T, a current transformer 2T and a current transformer 3T; an inlet wire end N pole, an inlet wire end L1 pole, an inlet wire end L2 pole and an inlet wire end L3 pole of the circuit breaker Q are respectively connected with a ground contact N, a phase contact L1, a phase contact L2 and a phase contact L3 of a socket XP, an outlet wire end of the circuit breaker Q is connected with an inlet wire end of a protection tripper, an outlet wire end of the protection tripper outputs shore power to a shore power switch of a main distribution board of a ship, one end of a normally open auxiliary contact Q1 is connected with a control contact P1, the other end of the normally open auxiliary contact Q1 is connected with a control contact P2, one end of an undervoltage tripping coil YU is connected with a control contact P3 of the socket XP, the other end of the undervoltage tripping coil YU is connected with. The utility model discloses ensure that boats and ships conveniently connect and use bank electricity and accomplish safe operation.
Description
Technical Field
The utility model relates to a ship-borne low pressure single loop bank electricity case belongs to the marine equipment technical field.
Background
The shore power box is a power receiving facility for connecting the ship with an external power source. At present, the standard executed by the shore power box product in China is national ship standardization technical committee professional standard CB737-85 shore power box, and the standard does not relate to a provision that a socket is installed on the shore power box as an external power supply access port, and does not mention the content of misoperation prevention.
The shore power is indirectly used during the harboring period of the ship, so that the generator is stopped to run, and the method is a measure for protecting the environment. But the lack of compatibility and accidents caused by misoperation become important reasons for promoting the use of shore power for ships. (see an article titled "fuel is still used after a ship is landed
Interfaces of a shore power box of a ship power receiving facility and a port power supply facility power connection box are compatible, and the ship can be ensured to be successfully connected with shore power and safely run only by meeting technical requirements of relevant specifications in the shore power connection and use process.
Document 45 < th > port and ship shore power management method' in 2019 of the department of transportation in China (implemented from 2020, 2 and 1), the method stipulates in the ninth clause: the installation of the newly-built and the built Chinese nationality ship power receiving facilities accords with the legal ship inspection technical rules, and the power receiving facilities are qualified through the inspection of a ship inspection mechanism before being put into use. "
The national sailing vessel legal inspection technical rule 2018 published by the maritime administration of the people's republic of China legal inspection rules for ships and offshore facilities modifies the report, which is implemented from 1 month and 1 day in 2019, and the 2.101 regulation of chapter 1 ' ship shore power system ' in the 11 th report: "when the electrical equipment on the ship is powered by shore power, a shore power box is arranged on the ship at a proper position convenient for connecting a flexible cable from the shore power. The shore power box is connected to the main or emergency switchboard by a cable which is laid in a fixed manner and has a sufficient current rating. The shore power box should have (1) suitable terminals for connecting flexible cables; (2) the grounding binding post is used for connecting the ship body with the shore; (3) circuit breakers or switches plus fuses for protection; (4) an indicator light or voltmeter to indicate terminal voltage; (5) a facility for checking whether the shore power is matched with the polarity (direct current) or the phase sequence (three-phase alternating current) of the ship power system; (6) a facility for preventing the terminal from bearing a large degree of mechanical external force; (7) nameplate indicating the form of the distribution system, the nominal voltage and frequency (for alternating current) of the ship's electrical system; article 2.1.2 specifies: "when the shore power and/or ship power system is an alternating current three-phase system with a neutral point grounded, a facility for connecting the ship body with the shore ground is arranged; article 2.1.4 specifies: "ship electricity and shore electricity should be connected through a plug and a socket. The design of the plug and the socket should ensure that incorrect connection does not occur and that hot plugging cannot occur, and the plug and the socket should meet the recognized standard (r). The plug of the ship should be one of the following specifications according to the load supplied by shore power during the harboring period of the ship: (1)450V, 63A; (2)450V, 125A; (3)450V, 250A "; article 2.1.5 specifies: "except for rolling and 3000 total tons and above passenger ships, the ship specified in item 1.1.1 should be equipped with ship shore connection cable, the cable should adopt flexible cable with enough current rating, oil resistance and flame retardation sheath, and should meet the accepted standard of two, and one of three specifications of 3 × 25mm2, 3 × 70mm2 and 3 × 95mm2 should be selected as far as possible. The notice (i) indicates that the recognized standard to which the plug and the socket should conform is "IEC 60309-5:2017 or other equivalent criteria "; article 2.2.2 specifies that "when load transfer is performed in a power-off mode, measures should be taken to avoid simultaneous supply of marine generators (including emergency generators) and shore power. "
IEC60309-5:2017 standard "part 5 plug, socket and coupler for industrial use: the 3.501 article FOR The "Dimensional compatibility and interchangeability requirement" of SOCKET, plug and marine connector FOR low-voltage marine shore power connection system, SOCKET-output connectors FOR use in connectors FOR ships "marine connector FOR use in connection with marine connectors" defines The accessory FOR connection with shore power as "including plug, SOCKET, marine connector or marine inlet", and marks The application of The "accessory as" 3.501 access connector FOR use in SOCKET-outlet, ship connector FOR use in connection with marine connector FOR use in "SOCKET, marine connector FOR use in connection with marine connector" 501, and The description of The "plug FOR use in connection with marine connector" is referred to as "plug-outlet, marine connector FOR use in" 501, and The description of The "plug-outlet" is referred to in The drawing and The description of The "plug FOR use in connection with marine connector FOR use in" and "is referred to The drawings of The" plug-outlet 1 FOR use in connection with marine connector FOR use in "and" is referred to The description of The "plug-outlet" and The "plug FOR use in connection with marine connector FOR use in ships" 501; the structure standard diagrams of the socket and the plug given by the IEC60309-5:2017 standard are shown in the attached figures 2 and 3 in the specification.
In a plug structure standard diagram of the IEC60309-5:2017 standard, the ground contact is the longest, the phase contact is the second, and the control contact is the shortest.
IEC/IEEE80005-3:2016 Standard Port public connection facilities-part 3: the 7.3.1 item of the General requirements of Low-Voltage Shore power Connection system in port-Part 3, Low Voltage Shore Connection (LVSC) Systems-General requirements, makes specific requirements for the auxiliary contact of the ship Shore power system connector: "each plug, socket, marine connector and marine access port should be equipped with control contacts to verify the continuity of the safety circuit. For a single cable connection, at least 4 control contacts are required. "< Each plug, socket-outlet, shipconnector and ship let short fixed with pilot connections for connecting simple-cable connections, a minimum of pilot connections is required. The contact arrangement of the standard power plug and the standard power socket given in IEC/IEEE80005-3:2016 is shown in the attached figure 4 of the specification.
IEC80005-3:2016 clause 7.3.1 also requires: "when the trip of the circuit breaker of the onboard powered device fails, the safety backup should include opening the circuit breaker of the onboard main distribution board accessing shore power. "< In case of failure of shift on-board circuit breaker, a safety back cover connected In circuit breaker >
The IEC60309-5:2017 standard is specified in chapter 1 "Range": the present section of "1 EC60309 is applicable to three-phase accessories with a ground contact and four control contacts, which accessories have a maximum rated current of 350A and a maximum rated voltage value of no more than 690V, 50/60 Hz. "< This part of 1EC 60309 applications to three-phase accesses with an earth contact and with a four pilot contact,. The access has a maximum-speed current of 350A and a maximum-speed operation not obtained 690V 50/60 Hz. Description of the invention
The connector diagrams given in the IEC/IEEE80005-3:2016 standard and the IEC60309-5:2017 standard all show 1 ground contact, 3 phase contacts, 4 control contacts. The IEC/IEEE80005-3:2016 Standard specifies that "make and break sequence of contacts" for a connector is as follows: (a) connecting: 1) a ground contact,2) a power contact, 3) a control contact; (b) disconnecting: 1) control contact,2) power contact, 3) ground contact. "< Contact sequence shape be in the following closing ode: a) connection: 1) earth contacts,2) power contacts 3) pilot contacts; b) disconnection: 1) pilot contacts,2) power contacts,3) earth contacts. Description of the invention
The 4.2.7.2 th regulation of JTS155-2019 & lt technical Specification for construction of wharf shore power facilities (implemented 6.1.2019) of the department of transportation in China is in shore power supply facilities: the "low voltage powered connector may be one or more of the tables 4.2.7 and should comply with the current national standard" Industrial plug and socket and coupler "(GB 11918). When no connector is used, M10 terminal can be used for connection. Table 4.2.7 for "JTS 155-2019 is shown in Table 1 below. The specifications of the connectors of the low-voltage power supply facilities in table 1 are identical to those of the connectors of the low-voltage shore power receiving facilities of the ship in the legal inspection rules for ship and offshore facilities published by the maritime administration of the people's republic of China. (note: when the demand of ship on shore exceeds 250A, multi-loop feeding is adopted according to IEC/IEEE80005-3:2016 standard)
TABLE 1 Low-voltage power supply connector specification table
Note: table 1 is cited from JTS155-2019 specification page 6 table 4.2.7.
In summary, the rated voltage, the rated current, the safety requirements of the shipborne low-voltage single-loop shore power box and the interface standard of the adopted connector are required to meet the requirement that the installation of the power receiving facility meets the legal technical rules of ship inspection according to the file 45 of 2019 of the transportation department; the connector of the low-voltage shore power connection system is regulated according to the national maritime work of the people's republic of China, the' Ship and offshore facility legal inspection rule 2018 annual modification notice 'and conforms to IEC60309-5:2017 or other equivalent standards'.
Note: the standards GB/T11918-1-2014, GB/T11918-2-2014 and GB/T11918-4-2014 of the industrial plug and socket and coupler are revisions of the 2001 standard, and the descriptions refer to the IEC60309-1:2012 standard, the IEC60309-2:2012 standard and the IEC60309-4:2012 standard. The IEC60309-5:2017 standard "part 5 of industrial plug, socket and coupler: the requirements of size compatibility and interchangeability of sockets, plugs and marine connectors for a ship low-voltage shore power connection system are published and implemented, a plurality of revisions are carried out on the 2012 version of IEC60309, and the IEC60309-5:2017 or other equivalent standards are executed according to the regulations of 2018 revision notice of the legal inspection rules of ships and offshore facilities in the Ministry of public and maritime affairs before the GB/T11918, namely the socket and the coupler of the industrial plug and the 2014 version, is revised again.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ship-borne low pressure single loop bank electricity case has compatibility and prevents the maloperation function, and this product can be compatible with harbour bank electricity power supply facility, accords with relevant standard, standard to the technical requirement of boats and ships bank electricity system, ensures that boats and ships conveniently connect to use the bank electricity and accomplish safe operation.
The purpose of the utility model is realized through the following technical scheme:
a ship-borne low-voltage single-loop shore power box comprises a breaker Q, a socket XP, a self-locking button S, a current monitoring relay 1K, a current transformer 1T, a current transformer 2T, a current transformer 3T, a wiring board 1X and a wiring board 2X; the socket XP is an IEC60309 standard socket and comprises a ground contact N, a phase contact L1, a phase contact L2, a phase contact L3, a control contact P1, a control contact P2, a control contact P3 and a control contact P4; an inlet wire end N pole, an inlet wire end L1 pole, an inlet wire end L2 pole and an inlet wire end L3 pole of the breaker Q are respectively connected with a ground contact N, a phase contact L1, a phase contact L2 and a phase contact L3 of a socket XP, the outlet wire end of the breaker Q is connected with the inlet wire end of a protection tripper, the outlet wire end of the protection tripper outputs shore power to a shore power switch of a main distribution board of a ship, one end of a normally open auxiliary contact Q1 of the breaker Q is connected with a control contact P1 of the socket XP, the other end of the normally open auxiliary contact Q1 of the breaker Q is connected with a control contact P2 of the socket XP, one end of an undervoltage tripping coil YU of the breaker Q is connected with a control contact P3 of the socket XP, the other end of the normally open auxiliary contact Q; a terminal N of a wiring board 1X is connected with an N wire at a Q inlet end of a main shore power box breaker, a terminal A of the wiring board 1X is connected with an L1 wire at the Q inlet end of the main shore power box breaker, a terminal B of the wiring board 1X is connected with an L2 wire at the Q inlet end of the main shore power box breaker, and a terminal C of the wiring board 1X is connected with an L3 wire at the Q inlet end of the main shore power box breaker; current transformer 1T, current transformer 2T, current transformer 3T installs respectively in circuit breaker Q's L1 phase line, L2 phase line, L3 phase line, current transformer 1T's one end is connected with wiring board 1X's terminal Ia, current transformer 2T and 1T homonymy end's one end is connected with wiring board 1X's terminal Ib, current transformer 3T and 1T homonymy end's one end is connected with wiring board 1X's terminal Ic, current transformer 1T, current transformer 2T, current transformer 3T's the other end is parallelly connected.
The purpose of the utility model can be further realized through the following technical measures:
the ship-borne low-voltage single-loop shore power box further comprises an emergency cut-off interface XT, the emergency cut-off interface XT is arranged between the self-locking button S and the anode of the working power supply, and a self-locking manual emergency cut-off button SJ and a protective dynamic break contact or a dynamic make contact in a normal state, which are arranged according to relevant standard requirements, of the ship-side shore power device are connected in series between terminals 1 and 2 of the emergency cut-off interface XT.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model relates to a ship-borne low pressure single loop bank electricity case with compatibility and anti-misoperation, bank electricity interface completely accords with the regulation of relevant international and domestic standard to boats and ships bank electricity receiving facility connector interface and voltage grade and current grade, can be compatible with harbour bank electricity power supply facility, is favorable to forming standardized, serialization product;
(2) the safety interlocking interface is provided to ensure that the plug can not be plugged in and pulled out with electricity;
(3) a voltage loop and a current loop interface of the monitoring protection and measurement device are arranged in the shore power box, and the voltage loop and the current loop interface can be used for normally working by the protection and measurement device specified by the relevant standard and selectable;
(4) an emergency cut-off interface is arranged in the shore power box, and action contacts with various emergency cut-off functions can be accessed to ensure that the monitoring protection functions specified by relevant standard and selectable are met;
(5) an interface interlocked with a ship generator (including an emergency generator) is provided, so that ship electricity and shore electricity are prevented from being supplied at the same time;
(6) when the port does not have a connector, the shore power cable can be inserted into the box from the inlet wire stuffing box and is connected with the inlet wire side of the breaker by using a stud, and the control contact P3 and P4 of the socket XP are 1.5mm in length2The copper wire is in short circuit, and the main breaker of the shore power box can be switched on, so that emergency access to shore power is ensured;
(7) has the backup protection function required by international standard.
Drawings
FIG. 1 is a diagram of a shore power accessory application provided by IEC60309-5-2017 standard;
FIG. 2 is a standard diagram of a socket structure given by IEC60309-5:2017 standard;
FIG. 3 is a standard diagram of a plug structure given by IEC60309-5:2017 standard;
FIG. 4 is a diagram of the contact arrangement for a standard power plug and receptacle given by IEC/IEEE80005-3: 2016;
FIG. 5 is a circuit diagram of a shipborne low-voltage single-loop shore power box;
FIG. 6 is a front view of the anti-misoperation ship-mounted single-socket low-voltage shore power box outline structure;
FIG. 7 is a left side view of the anti-misoperation ship-borne single-socket low-voltage shore power box outline structure;
fig. 8 is a bottom view of the anti-misoperation ship-borne single-socket low-voltage shore power box.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
The utility model discloses prevent the ship-borne single loop low pressure bank electricity case's of maloperation auxiliary work power supply according to IEC/IEEE80005-3:2016 standard regulation: "the voltage used in the auxiliary circuit should be less than 60V dc or 25V ac. "< the voltage used in the pilot circuit ball less line 60V d.c. or 25V a.c.. The shore power box working power supply is supplied with the DC24V power supply by the ship charging and discharging board.
As shown in fig. 5, it is a circuit diagram of a shipborne low-voltage single-loop shore power box, where 10 is a shipborne low-voltage single-loop shore power box, and the main electrical components of the shipborne low-voltage single-loop shore power box 10 include:
1. the connector 1 set (the socket and the plug are based on IEC60309-5:2017 and IEC/IEEE80005-3:2016 standards, the rated voltage is 690V or 450V according to the requirement of ship on the voltage class, and the rated current is 63A or 125A or 250A according to the requirement of ship on-shore capacitance);
2.1 circuit breaker (4 poles, rated working voltage is more than or equal to rated working voltage of a socket, rated uninterrupted current is more than or equal to rated current of the socket, an adjustable thermomagnetic release, short-circuit breaking capacity is selected according to system short-circuit current, an accessory with an undervoltage release 1 is dynamically switched on and off with an auxiliary contact 1, and an electric operation type, an undervoltage release coil and the rated voltage of the electric operation are selected according to voltage of an auxiliary working power supply of a shore power box);
3. the self-locking type on-site stop button 1 is only (the self-locking type 1 is in dynamic closing and 1 is in dynamic breaking);
4. the current monitoring relay 1 is only provided (dc3 mA-100 mA is adjustable, the open circuit principle acts, for example, the ABB product CM-SRS current monitoring relay ac or dc universal 3 mA-1A is adjustable, but needs a working power supply, and can be selected according to the voltage of the auxiliary working power supply of the shore power box);
5. other monitoring protection and metering indication devices are configured according to requirements (equipotential monitoring, overvoltage/undervoltage, phase sequence, open phase, three-phase imbalance, surge, lightning protection, electrical parameter and metering, emergency cut-off of shore power at other places of a ship, cable management system fault and the like are set or selected according to ship specification requirements, and a dynamic break contact of the device can be connected between the emergency cut-off interface terminals 1 and 2 in series as shown in figure 5).
6. Self-locking emergency cut-off button SJ (external device of shore power box, selected in the embodiment of figure 5)
The main circuit of the shipborne low-voltage single-loop shore power box is as follows: the ground contact N (or E or PE), the phase contact L1, the phase contact L2 and the phase contact L3 of the receptacle XP are respectively connected with an N terminal, an L1 terminal, an L2 terminal and an L3 terminal of a Q inlet end of the main shore power breaker.
The control circuit of the shipborne low-voltage single-loop shore power box is as follows: a control contact P1 of the socket XP is connected with one end of a movable auxiliary contact Q1 of the breaker Q, and a control contact P2 of the socket XP is connected with the other end of the movable auxiliary contact Q1; the positive electrode of a working power supply of the shore power box is connected with a terminal 1 of an emergency cut-off interface XT of the shore power box; between the terminal 1 and the terminal 2 of the emergency cut-off interface XT, a dynamic break contact or a dynamic make contact in a normal state can be used for connecting in series a self-locking manual emergency cut-off button SJ and other protections (such as various safety protections of a shore power receiving system, a cable management system, an equipotential protection device, ship-side emergency cut-off, ship power interlocking and the like) set by a ship-side shore power device according to relevant standard requirements; one end of an on-site stop button S is connected with a terminal 2 of an emergency cut-off interface XT, the other end of the S is connected with a control contact P4 of a socket XP, a control contact P3 of the socket XP is connected with one end of an undervoltage tripping coil YU of a circuit breaker Q, the other end of the undervoltage tripping coil YU is connected with one end of a current monitoring relay 1K, and the negative electrode of a shore power box working power supply is connected with the other end of the current monitoring relay 1K; a terminal N of a wiring board 1X is connected with an N wire at a Q inlet end of a main shore power box breaker, a terminal A of the wiring board 1X is connected with an L1 wire at the Q inlet end of the main shore power box breaker, a terminal B of the wiring board 1X is connected with an L2 wire at the Q inlet end of the main shore power box breaker, and a terminal C of the wiring board 1X is connected with an L3 wire at the Q inlet end of the main shore power box breaker; one end of a current transformer 1T is connected with a terminal Ia of a wiring board 1X, the homonymous ends of current transformers 2T and 1T are connected with a terminal Ib of the wiring board 1X, the homonymous ends of current transformers 3T and 1T are connected with a terminal Ic of the wiring board 1X, and the other ends of the current transformers 1T, 2T and 3T are connected in parallel; the voltage loop of the monitoring protection and measurement device selected by the shore power box can be respectively connected with the terminal N, the terminal A, the terminal B and the terminal C of the wiring board 1X in parallel, the current loop of the monitoring protection and measurement device selected by the shore power box is connected with the terminal Ia, the terminal Ib and the terminal Ic of the wiring board 1X in series, and the ground of each current loop is connected with the terminal Io in parallel; one end of a dynamic-breaking auxiliary contact Q2 of a main breaker Q of the shore power box is connected with a terminal 1 of a wiring board 1X, and the other end of the auxiliary contact is connected with a terminal 2 of the wiring board 1X and used for being interlocked with a marine generator (including an emergency generator), so that the power supply of the marine generator and the shore power is avoided.
In fig. 5, after a control contact P3 and a control contact P4 of a socket XP are short-circuited by an interlock which externally allows a shore power box circuit breaker Q to be switched on, an undervoltage trip coil YU of the circuit breaker Q is powered on, and the circuit breaker Q has a switching-on condition to prevent a plug from being electrified and pulled out mistakenly; the control contacts P1 and P2 of the socket XP are switching-on signal output interfaces of the circuit breaker Q, and can be used for controlling a circuit breaker control loop of the port power supply facility so as to ensure that the circuit breaker control loop of the port power supply facility can be switched on after the shore power box circuit breaker Q is switched on, and prevent the plug from being inserted mistakenly when the plug is electrified.
During the closing of the shore power box circuit breaker Q, the following conditions occur to enable the shore power box circuit breaker Q to trip automatically: firstly, the interlocking disconnection of the closing of a breaker Q of the shore power box is allowed by the outside, secondly, a plug is pulled out by mistake, thirdly, a cable connected with shore power is short-circuited or opened, fourthly, an external self-locking type manual emergency cut-off button SJ in an emergency cut-off interface XT of the shore power box is pressed, fifthly, a fault occurs to a cable management system, and sixthly, any action of other protections set by the shore power box according to the requirements of relevant standard standards is carried out.
When the shore power box undervoltage tripping coil YU is electrified, the current monitoring relay 1K coil is attracted, the contacts 11/12 and 21/22 are disconnected, and the 11/14 and 21/24 are connected; when any one of the emergency cut-off interfaces XT is in protection action or an emergency cut-off button SJ is pressed, the coil of the current monitoring relay 1K is in undercurrent, the contacts 11/12, 11/14, 21/22 and 21/24 are reset, a switch for connecting shore power on a main switch board on a ship is cut off, an alarm loop on the ship is switched on, and the function of backup protection is ensured when the main breaker Q of a shore power box fails to trip.
The appearance structure of the ship-borne low-voltage single-loop shore power box is shown in figures 6, 7 and 8: shown in the drawings as 1 is a box foot; 2, a box door hasp; 3 is a waterproof hinge; 4 is a box door handle; 5 is a standard socket; 6 is an outgoing line stuffing box; 7 is a working power supply and a control line stuffing box; 8 is an inlet wire stuffing box; and 9 is a grounding stud. Structure, appearance and technical requirement of on-board low pressure single loop bank electricity case:
(1) the box body of the shore power box is made of a common steel plate or a stainless steel plate with the thickness not less than 1.5mm, the protection grade of the shell is IP56, and the structure and the manufacturing process meet the requirements of the industry standard;
(2) an electric appliance insulating plate is arranged in the box, and the material of the insulating plate is heat-resistant, moisture-resistant and flame-retardant and has enough mechanical strength and chemical stability;
(3) the material of the stuffing box is common carbon steel or brass, and the material of the waterproof door hinge joint is common carbon steel nickel plating or stainless steel;
(4) protection and grounding: a protective grounding stud (PE) is arranged on the box body of the shore power box, the specification of the stud is not less than M10, the surfaces of the left upper box leg and the right lower box leg of the box body are smooth and clean and are provided with copper plating layers or tin plating layers, and the box door is grounded by a lead;
(5) the external dimension and stuffing box configuration of the shore power box are shown in table 2:
TABLE 2 Ship-borne low-voltage single-loop shore power box overall dimension reference table
Note: the external dimensions in table 1 do not include the dimensions of the box legs, the external dimensions change when the electrical appliance is configured differently, and the stuffing box can also be of a TJ type or configured according to actual requirements.
(6) The structure, the manufacturing process and the requirements of the shore power box can meet the relevant requirements of the industrial standard CB373-85 shore power box.
In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (2)
1. A ship-borne low-voltage single-loop shore power box is characterized by comprising a circuit breaker Q, a socket XP, a self-locking button S, a current monitoring relay 1K, a current transformer 1T, a current transformer 2T, a current transformer 3T, a wiring board 1X and a wiring board 2X; the socket XP is an IEC60309 standard socket and comprises a ground contact N, a phase contact L1, a phase contact L2, a phase contact L3, a control contact P1, a control contact P2, a control contact P3 and a control contact P4; an inlet wire end N pole, an inlet wire end L1 pole, an inlet wire end L2 pole and an inlet wire end L3 pole of the breaker Q are respectively connected with a ground contact N, a phase contact L1, a phase contact L2 and a phase contact L3 of a socket XP, the outlet wire end of the breaker Q is connected with the inlet wire end of a protection tripper, the outlet wire end of the protection tripper outputs shore power to a shore power switch of a main distribution board of a ship, one end of a normally open auxiliary contact Q1 of the breaker Q is connected with a control contact P1 of the socket XP, the other end of the normally open auxiliary contact Q1 of the breaker Q is connected with a control contact P2 of the socket XP, one end of an undervoltage tripping coil YU of the breaker Q is connected with a control contact P3 of the socket XP, the other end of the normally open auxiliary contact Q; a terminal N of a wiring board 1X is connected with an N wire at a Q inlet end of a main shore power box breaker, a terminal A of the wiring board 1X is connected with an L1 wire at the Q inlet end of the main shore power box breaker, a terminal B of the wiring board 1X is connected with an L2 wire at the Q inlet end of the main shore power box breaker, and a terminal C of the wiring board 1X is connected with an L3 wire at the Q inlet end of the main shore power box breaker; current transformer 1T, current transformer 2T, current transformer 3T installs respectively in circuit breaker Q's L1 phase line, L2 phase line, L3 phase line, current transformer 1T's one end is connected with wiring board 1X's terminal Ia, current transformer 2T and 1T homonymy end's one end is connected with wiring board 1X's terminal Ib, current transformer 3T and 1T homonymy end's one end is connected with wiring board 1X's terminal Ic, current transformer 1T, current transformer 2T, current transformer 3T's the other end is parallelly connected.
2. The shipborne low-voltage single-loop shore power box as claimed in claim 1, further comprising an emergency cut-off interface XT, wherein the emergency cut-off interface XT is arranged between the self-locking button S and the positive electrode of the working power supply, and a self-locking manual emergency cut-off button SJ and a protective dynamic break contact or a dynamic make contact in a normal state, which are arranged according to the requirements of relevant specification standards, are connected in series between terminals 1 and 2 of the emergency cut-off interface XT.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020486171.0U CN211606105U (en) | 2020-04-07 | 2020-04-07 | Shipborne low-voltage single-loop shore power box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020486171.0U CN211606105U (en) | 2020-04-07 | 2020-04-07 | Shipborne low-voltage single-loop shore power box |
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| CN211606105U true CN211606105U (en) | 2020-09-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342467A (en) * | 2020-04-07 | 2020-06-26 | 江苏中智海洋工程装备有限公司 | Shipborne low-voltage single-loop shore power box |
| CN111342467B (en) * | 2020-04-07 | 2024-05-31 | 江苏玺骅电器有限公司 | Shipborne low-voltage single-loop shore power box |
-
2020
- 2020-04-07 CN CN202020486171.0U patent/CN211606105U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342467A (en) * | 2020-04-07 | 2020-06-26 | 江苏中智海洋工程装备有限公司 | Shipborne low-voltage single-loop shore power box |
| CN111342467B (en) * | 2020-04-07 | 2024-05-31 | 江苏玺骅电器有限公司 | Shipborne low-voltage single-loop shore power box |
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Effective date of registration: 20240402 Address after: Room 506, Building 40, Rongjin Garden, Huadu Mingcheng, Runzhou District, Zhenjiang City, Jiangsu Province, China Patentee after: Jiangsu Xihua Electric Appliance Co.,Ltd. Country or region after: China Address before: No. 101, Nanxu Avenue, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU ZHONGZHI MARINE ENGINEERING EQUIPMENT CO.,LTD. Country or region before: China |
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