6003385-1000(110kVABB断路器机构图)
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OVR Three Phase Recloser 15 kV - 38 kV Descriptive BulletinOVRImproving Distribution SystemReliability Through:•Reliable Products by Design•Innovative Protection andAutomation Schemes•Excellent Customer Supportour customers modularity and flexibility to obtain a product for today'srequirements, while allowing for future upgrades. The ABB OVR recloser isable to meet present recloser demands, plus offer advanced capabilities suchas fault location, adaptive protection, control monitoring, power quality,communications, single phase tripping and loop control for tomorrow’sneeds.2Improved Distribution System Reliability Conventional methods for improving system reliability include tree trimming, animal guards,lightening protection, and maintaining problem circuits. However, many of today’s utilities aremoving toward specialized system configurations, such as midpoint reclosers, tie reclosers, loop configurations, and single phase reclosing to improve reliability. These configurations,combined with remote communication, can substantially improve reliability indices,subsequently enhancing customer service and maximizing shareholder value.Utilities are receiving pressure to improvereliability from three stakeholders:•customers•industry regulators•company ownersCustomersCustomers expect a level of reliability equal to, orbetter than, the reliability they have had.Furthermore, an increasing number of customersare operating businesses, which are sensitive toreliability and service quality.Industry RegulatorsIndustry regulators, or Public Utility Commissions, are increasinglyconsidering performance-based regulation mechanisms, whichexplicitly state reliability penalty targets. These regulatorycommissions are monitoring several indices such as:•System Average Interruption Frequency (SAIFI)•System Average Interruption Duration (SAIDI)•Momentary Average Interruption Frequency (MAIFI).These indices are accompanied by financial bonuses or penaltiesthat directly impact the utility's bottom line.Company OwnersShareholders or company owners expectsuitable rates of return. All capital, operationaland maintenance expenditures are selected tomaximize results.34Benefits of High Voltage Unit•Compact, lightweight design for easy installation•Superior life - rated for 10,000 operations•Environmentally friendly - no oil or gas•HCEP encapsulating material reduces weathering erosionand outdoor aging, improving life expectancy•Vacuum interruption for maximum reliability andminimum maintenance•Magnetic actuation with fewer moving parts andless maintenance•Stainless steel enclosure to prevent corrosion in harshenvironmentsReliability by Design15 kV27 kV38 kVReliability by DesignBenefits of Control Unit•Simple, menu-driven programming for easy use•Hot line tagging feature on faceplate for simpleand safe operation•Easy access front RS-232 port•Button on front panel (Counters) for easy access tooperational data•Over 50 protection curves and 3 user programmablecurves for superior coordination•Single phase tripping option reduces outages•Optional loop control module for fast restoration of distribution systems•Fault location reduces outage time••and interruptions•in harsh environments•to save installation time and money•input (85 - 265 VAC/DC)6Pole assembly–Resistant to vandalization–Maintenance free: tested to 10,000 mechanical operationswithout degradation–Few moving parts–High creepage pole design–Easy to replace individual poles–Superior HCEP encapsulating material for outdoorapplicationsInsulating material–Advanced epoxy (HCEP) encapsulating material–Light weight for easy handling–Increased weather durability and improved aging–Improved performance in heavily polluted areasVacuum interrupters–Maximum reliability–Design ensures superior contact wear and long life–Superior life: 10,000 load operations–Minimal maintenance–Environmentally friendlyIntegrated sensors–Provides required signals for current protection, meteringand data gathering–Sized for superior response up to the full-rated faultcurrent–Reliable and accurate data for waveform analysis–One sensor per phaseMechanical trip–Pulling yellow handle down will mechanically open allthree poles of the OVR unit–Lockout function is conveniently performed using theavailable hot-line tagging switch on the OVR control unit–Optional close block feature for manual tripReliability by Design7Position switch–One per pole–Determines pole open or closed positions–Allows independent pole operation–Provides positive pole position feedback to the OVRcontrol unit–Double break, galvanically separate contacts–Self-cleaning contact points by wiping action–Gold contacts for low currents and voltages at low contacttransfer–Transparent green housing allows the contact positionand internal mechanism to be easily viewedMagnetic actuators–Increased reliability - rated to 10,000 operations–Simple design –Bi-stable - no power required to hold contacts open orclosed–Few moving parts mean low maintenance and highreliability–Three individual actuators eliminate complicated linkagesOutdoor cabinet–304 stainless steel enclosure prevents corrosion–Eliminates environmental and maintenance concernsof oil or gas–Option for up to six voltage inputs into the highvoltage cabinet eliminates the need to run cables to thelow voltage cabinet–Shunt resistors allow for disconnecting control cablewithout open circuiting current sensorsOpen/Close indicators (on bottom)–Individual phase position indicators–Highly visible from the ground–Large and easy to viewReliability by Design8Reliability by Design3D Modeling: Advanced Design TechnologyAdvances in simulation software allow for the virtual design and testing of poles and actuators prior to any actual manufacturing and testing. This gives ABB the ability to use 3D electrostatic modeling on the poles to design improvements, minimize partialdischarge and construct dielectrically robust poles. This design process minimizes therisk of field failures over the life of the product.ABB Vacuum Interruption:Improved InterrupterABB has been developing and manufacturingvacuum interrupters since the early 1980's.Worldwide, more than one million ABB vacuuminterrupters are in service. ABB's vacuuminterrupter facility uses the latest technologies inhigh quality mass production to produce the nextgeneration of vacuum interrupter. This newgeneration vacuum interrupter is robust foruniversal application.Vacuum interrupters are compact, maintenance-free,with a long service life, and excellent environmentalcompatibility. Vacuum technology fits very well withthe recloser requirements since it can easily handlefrequent operations. Additionally, vacuuminterrupters do not need any extra time to recover,so even the first reclosing operation (after 100-300msec) is not a problem.9HCEP: Cutting Edge Insulating MaterialThe OVR insulating material is Hydrophobic Cycloaliphatic Epoxy(HCEP). HCEP is the next generation of Cycloaliphatic Epoxy(CEP).Hydrophobicity means resistance to water. It is advantageous foroutdoor applications because it prevents water from developingcompletely wetted, resistive conductive surfaces. Leakage currents aretherefore reduced, which helps to reduce the flashover risk. The resultis enhanced reliability. Furthermore, less discharge activity means lessattack and therefore less surface erosion, improving insulators’ lifeexpectancy.Reliability by Design+ = positiveo = neutralAdvantages of HCEP over CEP-Improved performance in heavily polluted areas-Improved weatherability and outdoor aging-Increased life expectancy-Enhanced reliabilityWhy do we need Hydrophobicity?-Improved water beading and runoff-Lower leakage currents-Less discharge activity-Lower flash-over probability-Less erosion-Better reliability-Improved life expectancy10Local human-machine interface–Enlarged LCD (1” x 5”) with large characters (two lines of 20 characters)–Simple menu-driven programming using large six-button keypad–Backlit display indicates metering values, fault information and location–Temperature compensatedIndicator lights–Continual self-checking with status indication–Pickup and lockout indicationFront panel pushbuttons–Remote or local selection between three setting groups: Primary, Alternate 1 (Alt 1) and Alternate 2 (Alt 2)–Front panel button to set Alt 1 settings–Ground blocked, remote blocked, and reclose blocked pushbuttons–Sensitive Earth Fault (SEF) is optional, recommended for ungrounded or Delta CT applications –PROG 1 battery test feature preprogrammed–User programmable LEDs for alarms, additional targets, etc.–Counters button for easy access to number of operations and overcurrent trip information Hot line tagging feature–On faceplate for simpler and safer operation–Can be mapped for multiple applicationsFront mounted RS-232 port–Independent from rear mounted RS-232 port–Easy download and upload of data on-site using WinPCDSeparate open and close pushbuttons–Separate indicator light for easier viewing–ANSI or IEC coloring for individual practices123456Reliability by DesignPCD Control UnitReliability by Design2134651112Control cabinet–304 stainless steel cabinet, NEMA 3R with drip shield –Battery provides full operational capability for 48+ hours –Ample space for mounting communications equipment –Three-point latching with padlockable handle –Vented designGFI–Ground fault receptacle provides AC power for a laptopCommunication & I/O ports–Isolated RS-232 and RS-485 ports–ST fiber optic ports for interference-free communication; fiber optic signals are fully regenerated at each unit for successful daisy chaining–Programmable I/O ports: 6 inputs, 4 outputs available with UPS –Programmable I/O ports: 10 inputs, 7 outputs available with PS –Field upgradeable to meet future communication requirementsLoop Control Module (optional)–Speeds restoration on distribution power systems –Reduces the number of outages –Compatible with the PCD –Isolates the faulted section–Sectionalizes or removes the faulted section from the distribution system –Algorithm detects loss and restoration of voltage –Works in single and three phase mode–Includes direct access to alternate 2 settings –Ability to monitor/accept six voltage inputsSingle phase tripping (optional)–Reduces unnecessary three phase interruptions and outages due to single phase faults–Single phase tripping options of only picked up phases (OPUP) or one or all phases (OOAP)–Each step of reclose cycle can be individually configuredto single or three phase trip or lockout for optimum coordinationOscillographic data–Storage capacity of 64 cycles of monitored waveform data at 32 samples per cycle–All data can be downloaded on-site or remotely through communication interfacesFault recording–Records last 128 operations of:•phase and ground fault amperes •phase and ground voltage •tripping element •reclose time •distance to fault•estimated fault resistance •time stampOperation recording–Stores 512 operation recordsLoop Control ModuleControl CabinetReliability by DesignOscillographic Data13Remote communications–RS-232 port includes RTS/CTS handshaking–Modbus ASCII and RTU, and DNP 3.0TM protocols included with all units –DNP 3.0T M is compliant to Level 2Fault location*–Patented algorithm estimates fault impedance and computes apparent distance to fault –Works in background mode to maintain protection integrity*requires homogeneous distribution line, three phase voltage source, and does not apply in single phase tripping modePower quality**–Records voltage sags, swells and interruptions–Implemented per ANSI/IEEE Std. 1159 and includes programmable voltage thresholds –Triggers oscillographic capture**three phase voltage source requiredMetering–Meters current and voltage (with voltage input supplied) to ±1% accuracy–Measures kW and kVARh, power factor, demand Watts and VARs, and frequency to ±2% accuracy–User-selectable load profile data sampling 5, 15, 30, 60 minute time internal which will contain 13.3, 40, 80 or 160 days of information–All data can be downloaded on-site or remotely through communications interfaceProtective functions–Phase time overcurrent protection (51P)–Phase instantaneous overcurrent protection (50P-1)–Two definite time overcurrent settings (50P-2, 50P-3)–Ground overcurrent protection (51N)–Ground instantaneous overcurrent protection (50N-1)–Two definite time ground overcurrent settings (50N-2, 50N-3)–Negative sequence overcurrent protection (46)–Phase and ground directional overcurrent protection (67P, 67N)–Two independent steps for load shed, restoration, and over-frequency (81S, 81R, 81O)–Undervoltage and overvoltage control and alarm (27/59)–Up to four reclose cycles (define a recloser cycle 79-1 --> 79-5) close four times / trip five –Adaptive reclosing shots: each reclose sequence allows independent programming of protective functions–Sensitive Earth Fault protection with directional features (optional)–Available with up to 38 recloser curves, nine ANSI curves, four IEC curves and three user programmable curvesAdaptive protection–Three independent protection groups –Zone sequence coordination –Cold load pick-up–Reverse power reconfiguration (32P, 32N)Reliability by Design14Case 1: Typical Distribution Line (with reclosing relay)SAIDI: 3.3hrs/yr SAIFI: 1.6int/cust/yr MAIFI:8.7mom/yrCase 2: Three Phase Midpoint Recloser without Single Phase Tripping SAIDI: 2.6hrs/yr (21% reduction)SAIFI: 1.2int/cust/yr (25% reduction)MAIFI: 6.5mom/yr (25% reduction)Three Phase Midpoint Recloserwith Single Phase Tripping SAIDI: 2.3hrs/yr (30% reduction)SAIFI: 1.1int/cust/yr (31% reduction)MAIFI: 5.4mom/yr (38% reduction)In today's utility environment, distribution system reliability is becoming more important. There are several indices developed for reliability of service that utilities account for and track. These indices include System Average Interruption Frequency Index (SAIDI), System Average Interruption Duration (SAIDI), andMomentary Average Interruption Frequency Index (MAIFI). Currently, most utilities are measured by the Public Utilities Commission to assure they meet a minimum requirement with respect to these indices. Thesemeasurements are being utilized to assess penalty/performance-based rates at the utilities, making it is necessary to achieve higher reliability. Below are some examples of how current technology can improve reliability and reduce system outages.SubstationSubstation10 Miles 1,800 Customers5 Miles5 MilesRecloserRecloserRecloserSingle Phase TrippingThe OVR recloser is the first of its kind in the industry. It includes fast acting, maintenance free, independent-pole, magnetic actuation instead of a ganged-pole mechanism. The single phase tripping option is flexible bydesign in order to meet virtually all current and future customer needs. The three global modes available are:1.Three phase tripping2.Single phase tripping OPUP (only picked up phases trip)3.Single phase tripping OOAP (one or all phases trip)Each step of the reclose cycle can be individually configured to single or three phase trip to lockout for each of the protective functions. Two common examples would be:1.The recloser is set to trip on single phase and lockout on all three phases if fault is permanent.2.The recloser is set up to both trip and lockout on single phase.˜˜15Case 3: Loop Configuration without Single Phase Tripping SAIDI: 2.1hrs/yr (36% reduction)SAIFI: 1.0int/cust/yr (37% reduction)MAIFI: 6.8mom/yr (22% reduction)Loop Configurationwith Single Phase Tripping SAIDI: 1.8hrs/yr (45% reduction)SAIFI:0.8int/cust/yr (50% reduction)MAIFI: 3.1mom/yr (64% reduction)Loop ControlABB's Loop Control Module (LCM) is completely compatible with the PCD. The LCM detects either normal voltage or loss of voltage, from one or two sources. It initiates preprogrammed logical steps to isolate the faulted section, depending upon the voltage configuration and feeder location.The LCM provides a loop control function to sectionalize or remove the faulted section from the distribution system. This control module provides sectionalizing control of either a recloser or a switch, and restores the distribution system by closing the tie-point recloser from another electrical source.The LCM allows individual reclosers to act as a sectionalizer, midpoint or tie, without physical con-nections to other reclosers, allowing it to be installed in existing feeder automation systems.Application SummaryThe OVR's feature sets are well-suited for these specialty applications. Through the use of single phase tripping and loop control schemes, utilities can reduce their yearly outage time up to 45%.SubstationSubstationBreakerBreakerN.C.RecloserN.C.RecloserN.O.Recloser5 Miles5 MilesExcellent Customer Support16OVRCustomer Support:•Free 24-7 technical supportline•Feeder Automation Userswebsite features:-News-Frequently Asked Questions-Discussion Board-Technical Information-Product Brochures-Software Downloads-Contact Information-Instruction Manuals-Programming Shortcuts-Drawings•Training-Multi-Track Factory Based Training•Lineman Track•Engineering Track-Multi-Track Field Based Training•Lineman Track•Engineering Track-Mobile Training Aids•Unique tool incorporates a complete recloser and PCD with the LCM and simulates loop schemes using four PCDs withLCMs to demonstrate the schemes. Simulation can be tailoredto customer specific schemes to provide the greatest benefit. -PCD Training Aids with Simulators•Includes a PCD with a simulator box•Enables tabletop practice and simulation of the PCD•Three Year WarrantyTechnical DataOVR ratingsNom. operating voltage: 2.4-14.424.934.5kVMax. design voltage:15.52738kVMax. continuous current: 630/800*630/800*630/800*AMax. interrupting current:12.512.516kABIL:110/125*125170kVDry withstand 60 Hz 1 Min.:506070kVWet withstand 60 Hz 10 Sec.:455055kVPhase Spacing:15.50 (394)15.50 (394)15.50 (394) inches (mm)External creep distance, H2-ground:38.00 (960)38.00 (960)50.70 (1288) inches (mm)External creep distance, H1-H2:45.00 (1160)45.00 (1160)49.8 (1260) inches (mm)Min. external strike distance:9.5 (240)9.5 (240)14.4 (367) inches (mm)Max. interrupting time:0.0400.0400.040sec maxMax. closing time:0.0600.0600.060sec max Materials:Vacuum interrupter encapsulated in hydrophobic cycloaliphaticepoxy with 304 stainless steel cabinetsCurrent sensors:One per phase encapsulated into the poleOperating temperature:-40° to +70° CControl voltage:85 - 265 VAC-DC with UPS; 24, 48, 125 VDC with PSUpper unit weight:325325400lbsLower unit weight:150150150lbsBattery•Sealed lead acid rechargeable battery pack•Monitor locally and remotely•Easily accessible for changing•Allows for 48+ hour carryover and multiple operations upon loss of power•Includes capacitor backup for battery assistanceSummary specificationsAccuracy:Voltage: ±1% accuracyCurrent: ±1% accuracyLoad profile data (requires voltage input):kWh and kVARh (±2% accuracy)Power FactorDemand Watts and VARsFrequencyOVR testingANSI:Meets all applicable recloser standards (ANSI 37.60, IEEE, IEC and NEMA)Life test:10,000 mechanical operations without degradationPCD testingTransient Immunity:•Surge Withstand Capability: SWC and fast transient tests per ANSI C37.90.l and IEC 255-22-1 class III and 255-22-4 class IV for all connections except comm ports• Isolated comm ports per ANSI 37.90.1 using oscillatory SWC Test Wave only, and per IEC 255-22-1 class III• EMI test per ANSI C37.90.2* available optional ratings17Pole Mounted DimensionsA B C D E F G H15 & 27 kV in49.8241.7515.5011.1028.0438.0125.3015.44mm1265.451060.45393.70282.05712.26965.51642.71392.1438 kV in49.8241.7515.5012.3028.0444.0029.8015.44mm1265.451060.45393.70314.00712.261119.00759.00392.1418Substation Mounted DimensionsB C D L M N O P Q R15 & 27 kV in42.0615.5011.1095.8065.6048.0052.3822.0029.0627.90mm1068.19393.70282.052433.321666.001219.201330.45558.80738.17708.6238 kV in42.0615.5012.3095.8065.6048.0052.3822.0029.0634.90mm1068.19393.70314.002433.321666.001219.201330.45558.80738.17888.6219ABB Inc.655 Century PointLake Mary, FL 32746 U.S.A.For sales & marketing contact your local representative or:Tel: +1-407-732-20001-800-929-7947Fax: +1-407-732-2161/mediumvoltage。
ABB高压 GIS结构及二次回路分析摘要:本文先对ABB厂家的高压GIS设备的二次回路进行简单的介绍,后以500kV某站500kV GIS设备为例,重点分析其断路器机构二次回路的设计逻辑,并结合南方电网的相关反措,深入探讨其改进措施。
关键字:跳闸回路合闸回路防跳回路三相不一致回路南网反措1高压GIS机构二次回路1.1 断路器合闸回路以断路器A相合闸回路为例进行分析:图1.1 断路器A相分合闸回路机构中的合闸监视回路通常与操作箱中的TWJ继电器串联,监视合闸回路是否具备合闸条件,即判断合闸回路是否完好。
如图1.1所示,合闸监视回路串联了断路器常闭辅助接点,当刀闸处于分闸状态时,常闭点闭合,合闸回路完好;当刀闸处于合闸状态时,常闭点断开,合闸回路无法导通。
合闸回路满足合闸条件后,当断路器收到就地合闸指令时,合闸继电器K0E励磁,就地合闸回路中的K0E常开点闭合,合闸回路导通;当断路器遥控合闸时,转换把手打到远方位置,一旦收到合闸命令,合闸回路导通。
防跳回路提供防止开关跳跃的功能,是控制回路中必不可少的部分。
开关跳跃是指由于合闸回路的合闸接点粘连或未能及时返回等原因,导致合闸输出端一直带有电压,因此当开关因故障跳开后,又会因为合闸电压再次合上,造成断路器连续切合的现象,导致开关损坏甚至爆炸。
保护装置和机构内都有防跳回路。
常规的防跳回路接线如图1.2所示,由于机构防跳回路中串接了断路器的常开辅助接点,若两套防跳同时接入回路,当开关合闸后,开关常开辅助节点DL闭合,+KM—TWJ—R—DL常开点—K11—-KM之间构成一条寄生回路。
一旦两套防跳之间的参数配合不当,将导致防跳功能失效、跳位监视异常和合闸回路异常等现象。
因此新装置都已取消了保护防跳回路,只保留机构防跳功能。
图1.2 常规防跳回路接线图为了解决寄生回路的问题,ABB的断路器防跳回路先串接断路器的常闭辅助接点,再串接断路器的常开早合点和防跳继电器K201。
断路器按其使用范围分为高压断路器,和低压断路器,高低压界线划分比较模糊,一般将3kV以上的成为高压电器。
低压断路器又称自动开关,它是一种既有手动开关作用,又能自动进行失压、欠压、过载、和短路保护的电器。
它可用来分配电能,不频繁地启动异步电动机,对电源线路及电动机等实行保护,当它们发生严重的过载或者短路及欠压等故障时能自动切断电路,其功能相当于熔断器式开关与过欠热继电器等的组合。
而且在分断故障电流后一般不需要变更零部件,一获得了广泛的应用。
分类:按操作方式分有:电动操作、储能操作和手动操作。
按结构分有:万能式和塑壳式。
按使用类别分有:选择型和非选择型。
按灭弧介质分有:油浸式、真空式和空气式。
按动作速度分有:快速型和普通型。
按极数分有:单级、二级、三级和四级等。
按安装方式分有:插入式、固定式和抽屉式等。
高压断路器(或称高压开关)是变电所主要的电力控制设备,具有灭弧特性,当系统正常运行时,它能切断和接通线路及各种电气设备的空载和负载电流;当系统发生故障时,它和继电保护配合,能迅速切断故障电流,以防止扩大事故范围.因此,高压断路器工作的好坏,直接影响到电力系统的安全运行;高压断路器种类很多,按其灭弧的不同,可分为:油断路器(多油断路器、少油断路器)、六氟化硫断路器(SF6断路器)、真空断路器、压缩空气断路器等高压开关额定电压1kV及以上主要用于开断和关合导电回路的电器。
高压负荷开关高压负荷开关是一种功能介于高压断路器和高压隔离开关之间的电器,高压负荷开关常与高压熔断器串联配合使用;用于控制电力变压器。
高压负荷开关具有简单的灭弧装置,因为能通断一定的负荷电流和过负荷电流。
但是它不能断开短路电流,所以它一般与高压熔断器串联使用,借助熔断器来进行短路保护。
功能在规定的使用条件下,可以接通和断开一定容量的空载变压器(室内315KVA,室外500KVA);可以接通和断开一定长度的空载架空线路(室内5KM,室外10KM);可以接通和断开一定长度的空载电缆线路。
110kv ABB分合闸线圈指的是一种用于110千伏电气系统的分合闸装置,主要用于控制高压电网中的开关操作。
本文将从以下几个方面介绍110kv ABB分合闸线圈的相关知识。
一、110kv ABB分合闸线圈的基本原理1、分合闸线圈的作用110kv ABB分合闸线圈是电气系统中用于控制开关分合闸操作的重要装置,其主要作用是在高压电网中实现分断和接通电路的功能。
2、电气系统中的应用110kv ABB分合闸线圈广泛应用于变电站、输电线路和其它高压电气设备中,通过对开关进行远程控制,实现对电网的可靠管理和运行。
二、110kv ABB分合闸线圈的技术特点1、高压绝缘110kv ABB分合闸线圈采用高压绝缘材料,具有良好的耐压性能和绝缘性能,能够在高压电网环境下稳定运行。
2、远程控制110kv ABB分合闸线圈支持远程控制功能,能够实现对开关的远程操作,提高了操作的便捷性和安全性。
3、可靠性110kv ABB分合闸线圈具有高可靠性和稳定性,能够满足电气系统对分合闸操作的精准要求,保障了电网运行的稳定性。
三、110kv ABB分合闸线圈的安装和调试1、安装要求在安装110kv ABB分合闸线圈时,需要严格按照设备说明书和相关规范进行操作,保证安装质量和安全性。
2、调试步骤安装完成后,需要对110kv ABB分合闸线圈进行调试,包括检查线路连接、设置控制参数、验证远程控制等步骤,确保设备能够正常运行。
四、110kv ABB分合闸线圈的维护和保养1、定期检查定期对110kv ABB分合闸线圈进行检查,包括绝缘状态、连接螺栓、控制系统等,发现问题及时处理,确保设备的正常运行。
2、清洁保养定期清洁设备,保持设备表面和内部的清洁,防止灰尘和杂物对设备造成损害,延长设备的使用寿命。
五、110kv ABB分合闸线圈的发展趋势1、智能化未来,110kv ABB分合闸线圈将朝着智能化方向发展,加入更多的感知和控制功能,提高设备的智能化水平。