Drilling machine grid power high-voltage room with insulation on-line monitoring system
By integrating the ring main unit, main transformer, auxiliary transformer, first feeder cabinet, second feeder cabinet, and soft starter into the high-voltage room of the drilling rig power grid, the problem of the traditional drilling rig power grid high-voltage room requiring a separate MCC room is solved, achieving compact power supply equipment and cost savings.
Patent Information
- Application Number
- CN202520512682.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-21
AI Technical Summary
After converting high-voltage electricity to AC600V industrial power in the traditional drilling rig grid power room, a separate MCC room is required to drive the field motor, which complicates the power supply configuration and increases the construction cost.
The ring main unit, main transformer, auxiliary transformer, first feeder cabinet, second feeder cabinet and soft starter are integrated into the room to achieve multi-stage voltage reduction conversion. By integrating the ring main unit, main transformer, auxiliary transformer, first feeder cabinet, second feeder cabinet and soft starter into the room, high voltage electricity is reduced in multiple stages to provide power to the VFD room and field motors, avoiding the need for a separate MCC room.
It achieves multi-stage voltage reduction of high-voltage electricity, simplifies the structure of power supply equipment, and reduces construction costs and time.
Smart Images
Figure CN223927971U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of high-voltage room, in particular to a drilling rig network electricity high-voltage room with an insulation online monitoring system. BACKGROUND
[0002] The traditional drilling rig network electricity high-voltage room mostly converts 35kV / 10kV high-voltage electricity into industrial AC600V power supply, and changes the transformer primary and secondary side ratio through the on-load voltage regulating device to change the gear, so that it can also provide relatively stable power supply when the well site load fluctuates, for the needs of production and life of the well team. However, the traditional drilling rig network electricity high-voltage room only converts high-voltage electricity into AC600V industrial power, and the well team needs to separately configure an MCC room to drive the on-site motor and provide AC400V power supply, which leads to the complication of power supply configuration structure and increases the construction cost. SUMMARY
[0003] Therefore, the present application provides a drilling rig network electricity high-voltage room with an insulation online monitoring system.
[0004] According to an aspect of the present application, a drilling rig network electricity high-voltage room with an insulation online monitoring system is provided, comprising: a room body, a ring main unit, a main transformer, an auxiliary transformer, a first feeder cabinet, a second feeder cabinet and a soft starter;
[0005] The ring main unit, the main transformer, the auxiliary transformer, the first feeder cabinet, the second feeder cabinet and the soft starter are all arranged in the room body;
[0006] The input end of the ring main unit is adapted to access high-voltage electricity, the output end of the ring main unit is electrically connected with the input end of the main transformer, and the output end of the main transformer is electrically connected with the busbar and is adapted to convert high-voltage electricity into 600V alternating voltage and output to the busbar;
[0007] The input end of the first feeder cabinet is electrically connected with the busbar, and the output end of the first feeder cabinet is adapted to output 600V alternating voltage;
[0008] The input end of the second feeder cabinet is electrically connected with the busbar through the auxiliary transformer, and the output end of the second feeder cabinet is electrically connected with the input end of the soft starter and is adapted to deliver 400V alternating voltage to the soft starter;
[0009] The output end of the soft starter is electrically connected with two or more motors and is adapted to provide working voltage for the two or more motors.
[0010] In a possible implementation, the drilling rig network electricity high-voltage room further comprises a power supply cabinet, the output end of the second feeder cabinet is connected with the input end of the power supply cabinet, and the power supply cabinet is adapted to supply power to other external devices.
[0011] In a possible implementation, the power supply cabinet is provided with two power supply cabinets.
[0012] In a possible implementation, the first fixed-frame circuit breaker is further included; and an output end of the first feeder cabinet is connected with the VFD room through the first fixed-frame circuit breaker.
[0013] In a possible implementation, the second fixed-frame circuit breaker and the third fixed-frame circuit breaker are further included; the second fixed-frame circuit breaker is connected with the primary winding of the auxiliary transformer; and the third fixed-frame circuit breaker is connected with the secondary winding of the auxiliary transformer.
[0014] In a possible implementation, the type of the ring main unit is XGN15-12.
[0015] In a possible implementation, the incoming line cabinet room, the transformer room and the low-voltage room are sequentially arranged in the room body.
[0016] The ring main unit is arranged in the incoming line cabinet room.
[0017] The main transformer and the auxiliary transformer are arranged in the transformer room.
[0018] The first feeder cabinet, the second feeder cabinet and the soft starter are arranged in the low-voltage room.
[0019] In a possible implementation, the on-load voltage regulating switch is arranged in the transformer room; and the on-load voltage regulating switch is connected with the primary winding of the main transformer.
[0020] Beneficial effects: The ring main unit is suitable for introducing the external 35kV / 10kV high-voltage power into the room body and transmitting the power to the main transformer; the main transformer is suitable for converting the 10kV high-voltage power into the AC600V low-voltage industrial power and transmitting the power to the bus, which is used as a connecting bridge between devices and can transmit the AC600V power to the first feeder cabinet and the auxiliary transformer; the first feeder cabinet is suitable for transmitting the AC600V power on the bus to the 600V busbar in the room and supplying the AC600V power source for the VFD room; and the auxiliary transformer is suitable for converting the AC600V power on the bus into the AC400V power and supplying the power for the soft starter, which is responsible for driving multiple motors on site. The ring main unit, the main transformer, the auxiliary transformer, the first feeder cabinet, the second feeder cabinet and the soft starter are integrated in the room body, which can realize multi-stage voltage reduction of the high-voltage power, so as to provide the voltage for the VFD room, the on-site motor and other various power consumption devices, and does not need to separately configure the MCC room for driving the on-site motor; the overall power supply device structure is compact, the construction is simple and not complicated, and the construction cost is effectively saved.
[0021] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF DRAWINGS
[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate examples of the present application, and together with the description, serve to explain the principles of the present application.
[0023] Figure 1 An electrical connection diagram of a drilling rig network power high-voltage room with an insulation online monitoring system according to an embodiment of the present application;
[0024] Figure 2 An electrical schematic diagram of a first feeder cabinet according to an embodiment of the present application;
[0025] Figure 3 An electrical schematic diagram of a first feeder cabinet according to an embodiment of the present application;
[0026] Figure 4 An electrical schematic diagram of a second feeder cabinet according to an embodiment of the present application;
[0027] Figure 5 An electrical schematic diagram of a second feeder cabinet according to an embodiment of the present application;
[0028] Figure 6 An electrical schematic diagram of a second feeder cabinet according to an embodiment of the present application;
[0029] Figure 7 An electrical schematic diagram of a soft starter according to an embodiment of the present application;
[0030] Figure 8 A wiring diagram of a microcomputer protection device according to an embodiment of the present application;
[0031] Figure 9 A wiring diagram of a microcomputer protection device according to an embodiment of the present application;
[0032] Figure 10 An electrical schematic diagram of a ring main unit according to an embodiment of the present application;
[0033] Figure 11 A layout diagram of a drilling rig network power high-voltage room with an insulation online monitoring system according to an embodiment of the present application.
[0034] Ring main unit 100, main transformer 200, bus 300, auxiliary transformer 510, first feeder cabinet 400, second feeder cabinet 500, soft starter cabinet 600, power supply cabinet 700, room body 800, motor 900, first fixed frame circuit breaker 410, fourth fixed frame circuit breaker 430, fifth fixed frame circuit breaker 440, second fixed frame circuit breaker 520, third fixed frame circuit breaker 530, fan 540, DC screen 550, on-load voltage regulating switch 210, indoor air conditioner 840, door 830. DETAILED DESCRIPTION
[0035] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the accompanying drawings. The same reference numbers in different drawings indicate the same or similar elements. Although various aspects of embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically noted.
[0036] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0037] In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0038] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.
[0039] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some examples, methods, means, elements and circuits well known to those skilled in the art are not described in detail in order to highlight the main idea of the present application.
[0040] Figure 1 A structural connection diagram of a drilling rig network power high-voltage room with an insulation online monitoring system according to an embodiment of the present application is shown. As Figure 1As shown, the drilling rig network power high-voltage room with the insulation online monitoring system comprises: a ring main unit 100, a main transformer 200, an auxiliary transformer 510, a first feeder cabinet 400, a second feeder cabinet 500 and a soft starter cabinet 600; the input end of the ring main unit 100 is adapted to access high-voltage power, the output end of the ring main unit 100 is electrically connected with the input end of the main transformer 200, the output end of the main transformer 200 is electrically connected with a bus 300 and is adapted to convert high-voltage power into 600V AC voltage and output to the bus 300; the input end of the first feeder cabinet 400 is electrically connected with the bus 300; the output end of the first feeder cabinet 400 is adapted to output 600V AC; the input end of the second feeder cabinet 500 is electrically connected with the bus 300 through the auxiliary transformer 510, the output end of the second feeder cabinet 500 is electrically connected with the input end of the soft starter 600 and is adapted to deliver 400V AC to the soft starter 600; the output end of the soft starter 600 is electrically connected with two or more motors 900 and is adapted to provide working voltage for the two or more motors 900.
[0041] It should be noted that the ring main unit 100 is adapted to introduce external 35kV / 10kV high-voltage power into the room and deliver to the main transformer 200; the main transformer 200 is adapted to step down 10KV high-voltage power into low-voltage industrial power of AC 600V and deliver to the bus 300, the bus 300 as a connecting bridge between devices can deliver AC 600V voltage to the first feeder cabinet 400 and the auxiliary transformer 510, the first feeder cabinet 400 is adapted to send AC 600V voltage in the bus 300 into the VFD room and power it; the auxiliary transformer 510 is adapted to convert AC 600V voltage in the bus into AC 400V voltage and power the soft starter 600 through the second feeder cabinet 500, and the soft starter 600 is responsible for driving multiple motors 900 on site. The ring main unit 100, the main transformer 200, the first feeder cabinet 400, the second feeder cabinet 500 and the soft starter 600 are integrated in the room body 800 in the present application, which can realize multi-stage step-down of high-voltage power, so as to provide power supply for VFD room, on-site motor 900 and other various power consumption devices, and there is no need to separately configure MCC room to drive on-site motor 900; the overall power supply device structure is compact and simple, which effectively saves construction cost and time.
[0042] It should be noted that the ring main unit 100 adopts the ring main unit in the prior art, and the model of the ring main unit 100 that can be adopted includes HXGN3-10, HGN-10 and HK series, preferably, the model of the ring main unit 100 adopted in the present application is XGN15-12. The ring main unit 100 is internally provided with an incoming line PT cabinet, a transformer outgoing line cabinet and a pre-magnetic charging cabinet; as shown in Figure 1 and Figure 9As shown, the incoming line PT cabinet, the transformer outgoing line cabinet, and the pre-magnetizing cabinet are connected together through the high-voltage main busbar, and the output end of the transformer outgoing line cabinet is electrically connected with the primary winding of the main transformer 200. Among them, the incoming line PT cabinet is responsible for sending 10kV high-voltage power into the high-voltage room 800, the high-voltage PT converts 10kV into 100V sampling voltage, and the multifunctional electric power meter of the ring network cabinet 100 can reflect the three-phase incoming line voltage, so that it can be directly judged whether the high-voltage incoming line is open-phase, thereby avoiding misoperation to cause equipment or personal injury. The transformer outgoing line cabinet is provided with a load switch, a grounding switch, and an isolation switch, which can be timely disconnected in case of over-load, grounding, or over-current, etc. If maintenance is needed, the isolation switch is separated, and the grounding switch is closed, so as to avoid causing injury to the person or equipment; the pre-magnetizing cabinet is suitable for effectively reducing the inrush current when the main transformer 200 is powered on, and plays a good protection role on the line and the main transformer 200.
[0043] In a possible implementation, as shown in Figure 3 the first fixed frame circuit breaker 410 is further included; the output end of the first feeder cabinet 400 is electrically connected with the VFD room through the first fixed frame circuit breaker 410. It should be noted that, as shown in Figure 2 the input end of the first feeder cabinet 400 is electrically connected with the busbar 300 and the three-phase output end of the external generator 450; that is, the first feeder cabinet 400 can be connected with the AC 600V voltage emitted by the main transformer 200 to the busbar 300, and can also be connected with the AC 600V voltage directly emitted by the external generator 450; the output end of the first fixed frame circuit breaker 410 is electrically connected with the input end of the VFD room, so as to provide the VFD room with the AC 600V voltage, that is, the first fixed frame circuit breaker 410 is suitable for controlling the on-off between the first feeder cabinet 400 and the VFD room, so as to provide the VFD room with the AC 600V voltage at any time.
[0044] As shown in Figure 2 the fourth fixed frame circuit breaker 430 and the fifth fixed frame circuit breaker 440 are arranged in the first feeder cabinet 400; the secondary winding of the main transformer 200 is electrically connected with the input end of the first fixed frame circuit breaker 410 through the fourth fixed frame circuit breaker 430, and the fourth fixed frame circuit breaker 430 is suitable for controlling the power supply on-off of the main transformer 200; the three-phase output end of the generator 450 is electrically connected with the input end of the first fixed frame circuit breaker 410 through the fifth fixed frame circuit breaker 440, and the fifth fixed frame circuit breaker 440 is suitable for controlling the power supply on-off of the generator 450.
[0045] In a possible implementation, as shown in Figure 3As shown, the first feeder cabinet 400 is also provided with a temperature and humidity meter 420, and the output end of the fourth fixed frame circuit breaker 430 and the output end of the fifth fixed frame circuit breaker 440 are both electrically connected to the power supply end of the temperature and humidity meter 420 through the transformer T5, thereby providing the converted 220V working voltage for the temperature and humidity meter 420. The temperature and humidity meter 420 is installed on the cabinet door 830 of the first feeder cabinet 400, and the detection end thereof is located in the cavity of the first feeder cabinet 400, which is suitable for detecting the temperature and humidity in the first feeder cabinet 400.
[0046] In a possible implementation, as shown in Figure 2 It also includes a reactive compensation cabinet 460; the secondary winding of the main transformer 200 and the three-phase output end of the generator 450 are electrically connected to the reactive compensation cabinet 460; the reactive compensation cabinet 460 is suitable for collecting the current in-line current value of the secondary winding side of the transformer 200 and the output end of the generator 450, compensating the reactive power, and improving the power utilization efficiency.
[0047] Further, the model of the reactive compensation cabinet 460 is MEC06-900, and the SVG compensation.
[0048] In a possible implementation, as shown in Figure 2 It also includes a network power in-line voltage meter PV1 and a network power phase loss indicator H1; the network power in-line voltage meter PV1 is electrically connected to the secondary winding of the main transformer 200 through the transformer T1, so as to detect the voltage value of the output voltage of the transformer 200; the network power phase loss indicator H1 is electrically connected to the secondary winding of the main transformer 200 through the transformer T1, and is suitable for lighting when a group of windings of the main transformer 200 is broken.
[0049] In a possible implementation, as shown in Figure 2 It also includes a generator in-line voltage meter PV2 and a generator phase loss indicator H2; the generator in-line voltage meter PV2 is electrically connected to the three-phase output end of the generator 450 through the transformer T3, so as to detect the voltage value of the output voltage of the generator 450; the generator phase loss indicator H2 is electrically connected to the three-phase output end of the generator 450 through the transformer T3, and is suitable for lighting when the three-phase line of the generator 450 is out of phase.
[0050] In a possible implementation, the primary winding of the auxiliary transformer 510 is electrically connected to the bus 300 to access 600V alternating current, and the secondary winding of the auxiliary transformer 510 outputs 400V alternating current. The second feeder cabinet 500 is provided with a second fixed frame circuit breaker 520 and a third fixed frame circuit breaker 530; the second fixed frame circuit breaker 520 is electrically connected to the primary winding of the auxiliary transformer 510; and the third fixed frame circuit breaker 530 is electrically connected to the secondary winding of the auxiliary transformer 510. As shown inFigure 4 As shown, the primary winding of the auxiliary transformer 510 is electrically connected with the bus through the second fixed frame circuit breaker 520 to access the AC 600V voltage; the auxiliary transformer 510 is adapted to convert the AC 600V voltage into the AC 400V voltage; the secondary winding of the auxiliary transformer 510 is electrically connected with the VFD room through the third fixed frame circuit breaker 530 to provide the AC 400V voltage for the VFD room.
[0051] Meanwhile, the secondary winding of the auxiliary transformer 510 is electrically connected with the power supply end of the two sets of fans 540, the power supply end of the DC screen 550, the power supply end of the on-load voltage regulating switch 210, the power supply end of the first temperature controller 560, the power supply end of the second temperature controller 570, the SVG power supply 580, and the power supply end of the two indoor air conditioners 840 in the room body 800 through the third fixed frame circuit breaker 530, so as to provide the AC 400V working power for these devices. Further, as shown in Figure 5 The output end of the third fixed frame circuit breaker 530 is electrically connected with the first set of fans 540 through the switch Q3 and the contactor KM1 in sequence; the output end of the third fixed frame circuit breaker 530 is electrically connected with the second set of fans 540 through the switch Q4; the output end of the third fixed frame circuit breaker 530 is electrically connected with the DC screen 550 through the switch Q5; the output end of the third fixed frame circuit breaker 530 is electrically connected with the on-load voltage regulating switch 210, the first temperature controller 560, and the second temperature controller 570 through the switch Q6; the output end of the third fixed frame circuit breaker 530 is electrically connected with the SVG power supply 580 through the switch Q10; the output end of the third fixed frame circuit breaker 530 is electrically connected with one of the indoor air conditioners 840 through the switch Q8, and the output end of the third fixed frame circuit breaker 530 is electrically connected with the other indoor air conditioner 840 through the switch Q9.
[0052] As shown in Figure 5 When the current temperature detected by the first temperature controller 560 exceeds the set value, the internal contact is turned on to make K1 and K3 in Figure 6 close, after K1 is closed, the "T1 high temperature indication" lamp-H11 is lighted, and the microcomputer protection device prompts the "transformer high temperature" alarm; after K3 is closed, as shown in Figure 5 , the two sets of fans 540 in the transformer room are started through the contactor KM1, and the "T1 high high temperature operation indication" lamp-H12 and the "TI fan operation indication" lamp-H13 are lighted.
[0053] In a possible implementation, as shown in Figure 7As shown, the input end of the soft starter 600 is connected to the AC 400V voltage through the switch Q5; the output end of the soft starter 600 is electrically connected with the three motors 900. Further, the first output end of the soft starter 600 is electrically connected with the motor (75KW) of the first perfusion pump through the AC contactor KM11; the second output end of the soft starter 600 is electrically connected with the motor (75KW) of the second perfusion pump through the AC contactor KM12; the third output end of the soft starter 600 is electrically connected with the motor (37KW) of the motor pump through the AC contactor KM13.
[0054] Further, the soft starter adopts the PSTX series soft starter.
[0055] In a possible implementation, further comprising: a power cabinet 700; the output end of the second feeder cabinet 500 is electrically connected with the input end of the power cabinet 700, and the output end of the power cabinet 700 is adapted to supply power to external equipment. The power cabinet 700 is adapted to supply power to the 400V insulation monitoring and auxiliary equipment outside the well field, such as power supply for living area, power supply for reserve tank, power supply for boiler room, power supply for hydraulic station, power supply for various lighting equipment, etc.
[0056] Preferably, as shown in the figure, Figure 1 As shown, the power cabinet 700 is provided with two; the output end of the second feeder cabinet 500 is electrically connected with the input end of the two power cabinets 700.
[0057] In a possible implementation, further comprising: a microcomputer protection device (transformer comprehensive protection device); the microcomputer protection device is arranged in the transformer outgoing line cabinet of the ring main unit 100. It should be noted that the microcomputer protection device can adopt JTL series, such as JTL-D410, JTL-D510, etc.; AM series, such as AM4-I, AM4-U1, etc. The model of the microcomputer protection device selected in the present application is iRelay 50-S, the input end of the microcomputer protection device is electrically connected with the incoming line PT cabinet of the ring main unit 100, and the output end of the microcomputer protection device is electrically connected with the opening coil of the high-voltage circuit breaker.
[0058] Further, the microcomputer protection device is electrically connected with the voltage transformer PT sampling end in the incoming line PT cabinet, and the voltage transformer PT in the incoming line PT cabinet collects 100V sampling power; the microcomputer protection device is electrically connected with the current transformer CT sampling end in the incoming line PT cabinet, the current transformer CT in the incoming line PT cabinet converts the primary side 0-300A current into 0-5A, and the microcomputer protection device collects 0-5A sampling current through the current transformer CT; the microcomputer protection device calculates power and frequency according to the collected current and voltage, and displays the collected signals on the DC screen 550, so as to facilitate the staff to monitor the working conditions of the high-voltage incoming line and the main transformer 200 in real time.
[0059] The high-voltage circuit breaker X is arranged in the transformer outgoing line cabinet of the ring main unit 100, one end of the high-voltage circuit breaker X is electrically connected with the disconnector of the incoming line PT cabinet, and the other end of the high-voltage circuit breaker X (namely the output end of the transformer outgoing line cabinet and the output end of the ring main unit 100) is connected with the main transformer 200; if the high-voltage incoming line and the main transformer 200 fail, for example, overvoltage, undervoltage, current one-stage protection, current two-stage protection, main transformer 200 over-temperature and the like, the microcomputer protection device sends an instruction to the tripping coil of the high-voltage circuit breaker X, so that the high-voltage circuit breaker X trips, and the main transformer 200 is disconnected from the incoming line PT cabinet. After disconnection, the main transformer 200 stops working, thereby playing a protective role for equipment and personal safety.
[0060] Further, the working principle of the high-voltage circuit breaker X is described as follows: Figure 9 As shown in the figure, the circuit breaker-QF provides a DC 220V working voltage for the microcomputer protection device. After the high-voltage circuit breaker X is energized, the terminal 34-24 is turned on, and the energization indicator light HY is lit. In the tripping state of the high-voltage circuit breaker X, the terminal 11-22 is turned on, and the tripping indicator light HG is lit. S1 is the auxiliary contact of the disconnector. When the disconnector is closed and the grounding knife is tripped, the closing button SB1 is pressed, the high-voltage circuit breaker X is closed, the terminal 11-21 is turned on, the indicator light HG is extinguished, and the indicator light HR is lit. When the tripping button SB2 is pressed or a fault or protection is triggered, the tripping coil TQ is powered, and the high-voltage circuit breaker X trips.
[0061] In a possible implementation, the housing 800 is further included; the incoming line cabinet chamber, the transformer chamber and the low-voltage chamber are arranged in the housing 800 in sequence; it should be noted that, as shown in the figure, Figure 11 The main structure of the housing 800 is a cuboid structure, and the inside is a hollow cavity; the first partition plate 810 and the second partition plate 820 are arranged in the housing 800; the planes where the first partition plate 810 and the second partition plate 820 are located are parallel to each other, and are suitable for dividing the internal space of the housing 800 into three chambers, which are the incoming line cabinet chamber, the transformer chamber and the low-voltage chamber in sequence.
[0062] The ring main unit 100 is arranged in the incoming line cabinet chamber, and the dehumidifier 850 is arranged in the incoming line cabinet chamber to keep the air in the incoming line cabinet chamber dry; the housing end sound and light alarm HA1 is installed on the upper part of the door 830 of the incoming line cabinet chamber.
[0063] The main transformer 200, the auxiliary transformer 510 and the on-load voltage regulating switch 210 are adjacently arranged in the transformer room; the two groups of fans 540 are arranged on the inner wall of the wall of the transformer room. The main transformer 200 is arranged close to the incoming line cabinet room, and the auxiliary transformer 510 is arranged close to the low-voltage room. The on-load voltage regulating switch 210 is electrically connected with the primary winding of the main transformer 200, and can adjust the gear according to the working condition, so that the main transformer 200 can stably output AC600V under the working condition of high-voltage incoming line fluctuation.
[0064] The first feeder cabinet 400, the second feeder cabinet 500, the soft starter 600, the reactive power compensation cabinet 460, the DC screen 550 and the power cabinet 700 are arranged in the low-voltage room; the first feeder cabinet 400, the second feeder cabinet 500, the reactive power compensation cabinet 460 and the DC screen 550 are arranged in sequence and adjacently on the same side of the low-voltage room; the power cabinet 700 and the soft starter 600 are adjacently arranged on the other side of the low-voltage room. The two indoor air conditioners 840 are adjacently arranged in the low-voltage room.
[0065] The first temperature controller 560 and the second temperature controller 570 are arranged in the second feeder cabinet 500; the SVG power supply 580 is arranged in the second feeder cabinet 500, and the output end of the SVG power supply 580 is electrically connected with the power supply end of the reactive power compensation cabinet 460, and the SVG power supply 580 provides AC220V control power for the reactive power compensation cabinet 460.
[0066] It should be noted that the first partition plate 810 and the second partition plate 820 need to be provided with wire holes, so as to facilitate the cable to pass through between the devices.
[0067] In a possible implementation, four doors 830 are arranged on the four side walls of the house body 800; the incoming line cabinet room is provided with two single doors 830; the transformer room is provided with a double door 830; and the low-voltage room is provided with a single door 830.
[0068] The above has described the embodiments of the present application, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical application or improvement of the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.
Claims
1. A drilling rig network electrical high voltage room having an insulation online monitoring system, characterized in that, The utility model relates to a kind of VFD house, including: House body, ring main unit, main transformer, auxiliary transformer, first feeder cabinet, second feeder cabinet and soft starter; The ring main unit, the main transformer, the auxiliary transformer, the first feeder cabinet, the second feeder cabinet and the soft starter are all arranged in the house body; The input end of the ring main unit is suitable for accessing high-voltage electricity, and the output end of the ring main unit is electrically connected with the input end of the main transformer, and the output end of the main transformer is electrically connected with the bus bar, suitable for converting high-voltage electricity into 600V alternating voltage and outputting to the bus bar; The input end of the first feeder cabinet is electrically connected with the bus bar;The output end of the first feeder cabinet is suitable for outputting 600V alternating voltage; The input end of the second feeder cabinet is electrically connected with the bus bar through the auxiliary transformer, and the output end of the second feeder cabinet is electrically connected with the input end of the soft starter, suitable for delivering 400V alternating voltage to the soft starter; The output end of the soft starter is electrically connected with two or more motors, suitable for providing operating voltage for two or more motors.
2. The electric substation of claim 1, wherein, Further comprising: power cabinet; The output end of the second feeder cabinet is connected with the input end of the power cabinet, and the power cabinet is suitable for supplying power to other external equipment.
3. The electric substation of claim 2, wherein, The power cabinet is provided with two.
4. The electric substation of claim 1, wherein, Further comprising: First fixed frame circuit breaker;The output end of the first feeder cabinet is suitable for being electrically connected with VFD house through the first fixed frame circuit breaker.
5. The electric substation of claim 3, wherein, Second fixed frame circuit breaker and third fixed frame circuit breaker are arranged in the second feeder cabinet;The primary winding of the auxiliary transformer is electrically connected with the second fixed frame circuit breaker;The secondary winding of the auxiliary transformer is electrically connected with the third fixed frame circuit breaker.
6. The electric substation of claim 1, wherein, The model of the ring main unit is XGN15-12.
7. The electrically grounded high voltage room of a drilling rig with an insulation online monitoring system according to any one of claims 1-6, characterized in that, The house body is sequentially arranged with incoming line cabinet room, transformer room and low-voltage room; The ring main unit is arranged in the incoming line cabinet room; The main transformer and the auxiliary transformer are both arranged in the transformer room; The first feeder cabinet, the second feeder cabinet and the soft starter are all arranged in the low-voltage room.
8. The electric substation of claim 7, wherein, The transformer room is provided with on-load voltage regulating switch;The primary winding of the main transformer is electrically connected with the on-load voltage regulating switch.