【应用】SE-CS30电流互感器用于直流充电桩接地故障监测,具有测量精度高、抗高频干扰能力强的优势
大功率直流充电设备能够提供大容量、高电流的充电等级,在城市道路主要的公共场合装配日益增多。由于其功率等级高、电压电流大,同时通常安装在户外人流密集的地方,其安全性也越来越受到重视。在充电桩交流进线侧,线路老化、灰尘堆积、进水、破损等情况造成电缆绝缘性能变差,导致火线与设备外壳(地)可能发生搭线的危险;同时雷击浪涌导致防雷器绝缘性能变差后,火线漏电流增大,不但导致设备漏电,而且会使充电桩工作不稳定。为保护设备和人身安全,对接地故障进行监测十分必要,图1中②位置为交流接地故障保护器的安装位置。
图1. 直流充电设备系统原理框图
通常接地故障监测方案采用三相漏电流传感器对三相线路进线进行检测,如果三相输入线路没有发生缺相、漏电,且处于三相平衡状态,则三相电流之和为零,漏电流传感器输出电压为零(注:通常漏电流传感器次级侧有并联电阻,故输出电压);如果发生缺相、漏电等,则漏电流传感器输出相应大小的感测电压, 该电压直接接入漏电保护装置,漏电保护装置促使输入接触器等保护装置迅速脱扣,断开输入线路。由于漏电流传感器的监测精度和灵敏度直接关系到接地故障保护的反应速度和可靠性,从而间接的关系到设备安全,所以应选择高质量的,高可靠的漏电流传感器。针对此处的应用,推荐LITTELFUSE公司的SE-CS30系列电流互感器,该系列电流互感器采用镍芯磁环制成,具有抗高频干扰能力强、灵敏度高的优点,同时该系列产品经过多方认证,为Littelfuse公司推出的专用漏电流检测互感器。产品外观如图2所示。
图2. SE-CS30 系列 - 电流互感器
SE-CS30 系列电流互感器匝比达到600:1,一、二次侧额定电流分别为为30 : 0.05(A),检测精度高达3%@0.06VA,检测频率范围50~400Hz,绝缘电压等级600V,满足充电桩380V(50/60Hz)三相进线线路的测量要求。其二次侧励磁电流、励磁电压保持很高的线性度,测量结果具有很高的准确性,如图3所示。
图3.互感器二次侧励磁电流对励磁电压关系曲线
该系列电流互感器应用十分简单,应用时将正负输出引线直接接入Littelfuse公司接地故障保护装置相应的接口端子即可,目前支持的l型号有:FPU-32、FPS、MPU-32、MPS、PGR-6100、PGR-6101、SE-330、SE-701、SE-704,并且SE-CS30系列电流互感器通过CSA, UL, CE相关认证,并符合RoHS, IEC 60044-1标准,是一款检测精度高、性能出色,绿色环保的器件。
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目录- 产品安全、应用及快速选型指引介绍 接地故障保护 电动机和泵保护 电动机保护更新 辅助监控 馈线保护 继电器软件 继电器测试设备 附件 保护概述 术语表 接地故障保护 电动机保护 辅助监控 电流互感器应用 电阻接地转换 接线图 IEEE/ANSI编号 中线接地电阻器和电流互感器规格表 快速参考指南
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Littelfuse(力特)保护继电器和控制装置选型指南
描述- Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 17,000 global associates, Littelfuse partners with customers to design and deliver innovative, reliable solutions.
型号- TDR4B23,EL3100,RK-325,TDR4B22,SCR,CT-0050-F10,TDI120AL,ECSL4HBH,DLMU,TDML110DL,SD12-PC,KSPSN21B,LLC42B15A,RK-332,SE-TA6ASF-WL,PC-200-LLC-CZ,THDS410.25SA,ZSCT30-31,TSU2000 SERIES,RK-325I,P1004-XX-(X),ORB120A25,P1004-12-X,SE-FLASH,PSC11,TDM24DL,LLC6210F10M,SB6000,FS146RC,SIO-RTD-02-00,LLP-24,FS165-30T,ARPX1S SERIES,233P,RK-105I,NDS-11,50R40029,MPS-RTD,460-15-100-SLD,ESDR423A4,ECSL4HAC,RM1000 NEMA 4,ASXX SERIES,KRDI2110S,ESDR423A3,KRPDA2129RXE,TDB120AL,LLC54AF10,455 SERIES,KRDM223,KRDM220,KRDM221,ORS120A150SD,PGC-31FC,PGM-8325,460-XXX-SP,FS126-45,CT-0800-F30,CT-0400-D20,TSB634,LLC26A1F25C,PLR240A,ECSW3LABT,TSB632,TDUH SERIES,TSDS SERIES,WVM811AH,TDM24AL,LPSM003Z,HRDM SERIES,235P,FA155-2,KSDB315SP,601,SB6100-01X-0,102A,KRPD215S190SMB,601 SERIES,EL731-03-X0,PC-200-LLC-GM,SIR,MPU-32-X69X SERIES,ORS230A150SD,KSD3120A,FPS,ECSW6MBHT,MSM20.15W9,FB9L,HRDR331A1,TSD6 SERIES,TS22120,201575-AU,201-100-SP-DPDT,FS300 SERIES,ECSH31F.08D,FS126-60,TDS SERIES,KRDI220,MSM130W9,KSD2 SERIES,FS500,102A SERIES,201-XXX-SP SERIES,LLC52BA,A0220 SERIES,460-200-SP,ALT230-S-SW,HRDR121A4R,LLC52AA,ORB120A160,P0400-82,TDI SERIES,PC-XXXLLC-CZ SERIES,P0400-83,DCSA5,PC-XXX-LLC-GM,P0400-86,SLR,INFORMER-MS,HRDB321,CT-0150-D10,PGC-4064,HRDB324,KSDB SERIES,FS512,ECSW4MBHT,TSDR612.5SA4.5S,TMV8000 SERIES,TSD2411S,ECSW4MBGT,FS524,CT-XXXX-DXX,KSDR SERIES,RS SERIES,P1004-XX,MPU-32-X69X–XXX00,WVM,SLR1610A,KSD1320,ASQU SERIES,TS1424,TS1423,TS1422,TS1421,HRDR330A0R,TSB222,77C SERIES,T10,CT-1200-F15,NGR SERIES,NGR1080,TS1416,NGR1081,TS1415,HRISW21FT,TS1412,KRPS913MB,HLMUDNAAN,202-575-RP,CT-0300-F10,TSD7621,LSRU-115-OR-2,DCSA50,HLMU,EL731-23-X0,NGR1077,NGR1078,NGRM-ENC-230-00,TRDU24A1,NGR1079,TRDU24A2,AF0100-10,TRDU24A3,SB6100-21X-0,NGR1070,NGR1071,NGR1072,NGR1073,NGR1074,ESDR450A1,NGR1075,NGR1076,ECS40AC,TVM460A75S2M,PMA-16-RTDB,PGR-3200-120,SE-703-0U-0X,ESDR123B4P,FS SERIES,NGR1066,NGR1067,D1100,PLR SERIES,NGR1068,AF0100-00,NGR1069,202,KSDB120P,KRPSD25S,TRM24D1X2,777-HRG-P2,ECS40BC,TRDU120A3,TRDU120A1,TRDU120A2,ERDM4130S,TDS120ALD,LLC14B60AX,ISS-102 SERIES,TDIH SERIES,NGR1050,NGR1051,NGR1052,NGR1053,TVW6510S0.4S,FB230A,CT-0300-F20,KSD3432A,PGE-05KV,DCSA20,LLC2,LLC1,LLC6,NGR1045,LLC5,ALT-XXX-1-SW,LLC4,SE-330AU-XX-0X,TVM230A101S1S,LLC8,SC4 SERIES,T10120,NGR1041,KSPSN13MI,VTP0E,PGE-35KV,FS100,TDB12D,T10S400,TSDR4412SA1,LLC842F103M,TDSL SERIES,KRD92115MB,FPU-32-00-00,201-200-SP-DPDT,KRD92115MA,ECSH4HAD,SE-GRM250,PGR-4300 SERIES,NGR1036,PMA-23,NGR1038,PMA-24,PMA-21,ERDM429,ERDM425,KRDB SERIES,ERDM427,FS590,NGRM-ENC-431-21,ER-72KV,777-MV-P2,240,460-MR,PCR SERIES,TDBL120AL,TS1211.5,EL731-11-X0,CT30S1,LLC4 SERIES,KSDS230,PGC-3140,3506002,FS126,FS127,TSD2434,DSQU SERIE,TDB24DL,T2D120A15M SERIES,TDUSH3001A,ALTXXX-X SERIES,THD7421A,TDUIL3001A,ERDM423,ECS6HAH,ERDM422,TDSH120AL,RS4B12,FPS SERIES,TS13115,PMA-18,HRPSD12HI,PMA-16,KSDU SERIES,PMA-17,LLC825F5M,LSRU-115-AL-3,PMA-14,PMA-15,PMA-12,LSRU-115-AL-2,PMA-13,PMA-10,TSDS421,SE-105,MPS-CTU-01-00,ORM24D13.5,TH1 SERIES,TDUIL3002A,MSM450W6,SE-107,DLMUBLAAA,FS143,TSU2000,FS146,RS1A11,KSPU SERIES,SB5060-20X-0,LLC44B4A,TCR9C,MSM42W6,50R-100-2,TDUB SERIES,THDB SERIES,FS152,777-HP-P2,PGR-8800-00-CC,LSR-XXX,LLC14B15AX,TS441165,PGR-4300,TSD24145S,ASXX,LSRU-115-OU-1.5,KSD2221,ORB,FS162,TA24A5,KRDR424A4,KSDR40A0,TA24A3,HRDR321A4R,TRM24A8Y5,KRDR424A0,TH1C415,TSDR6412SA1,ORM,RK-310X-0Y,SIR1A20A4,ALT115-S-SW,ORS,VMPS,TDIL SERIES,LLC44B2A,VMPU,FPS-CTU-03-00,ORB24A25,BZ1,777-ACCUPOWER,HRPS SERIES,PHST-38QTN,TS2412,LSRX-C,350200,HLMUDRAAA,LLC44B1A,KSD2413M,TRDU SERIES,TSS SERIES,SIR1A1A4,KRPSA24M,TL230A5,ECS2HBC,TS2421,PC-100-LLC-CZ,TS2422,TS2423,PGA-LS20,777-575-HRG-P2,IR KIT-12,TSDR6110SA30S,1N5339B,AC700-SMK,KRDB21180S,KRPSA22B,ER-15KV,PGA-LS30,TDB120ALD,LLC44B5F100,TSS421,ISS-102A-LC,202-200-SP,MPS-469X,TVM480A100.5S3S,KRDM121,ARP43,ARP41,777-KW-P2 SERIES,HRDR431A1R,MPU-32-X69X,TSS424,TSS422,TSD6310.8SN,THDS SERIES,KRPD SERIES,601575,ASTU SERIES,TS121150,PGA-LS10,VTP5N,460L-OEM,TCSA50,LLC44B5A,TDUIL,ELCT,SE-CS40,TDUIH,SE-502,TDR2A23,VTP4B,TSDR215SB18M,VTP4F,NGRUS003,VTP4J,P0200-20,PC-100-LLC-GM,P0200-19,SE-CS30,NGRM-ENC,PCR11,PCR10,TDUL SERIES,PMA-60,WVM611AL,PLS480A,PRLM423,VTP3B,ECSW,PGR-8800-00,PCR13,PCR12,PLM6502,ESDR120A0P,SB5032-21X-0,ESDR424A1,WVM611AH,ERDI436,VTP2C,VTP2A,TDUSL3000A,VTP2F,TCS,VTP2E,ORB SERIES,VTP2J,202-200-SP SERIES,KSPSA21FT,MPS-469X–XX000,SCR490D,THC421C,ELCT30-88,IR KIT-36,VTP2P,TDB,P1004-9,202 SERIES,SE-CS10,TDI,KRDR420A3,ECSL31A,KRDB415S,TDM,TSD7611S,VTP1B,TDS,SERIES,TS141180,TDR,TDU,VTP1D,VTP1C,MSM11W6,MSM210P3,TDB24AL,MPS-RTD-01-00,PGR-6100,PMA-55,PGR-6101,ARP23S,50R200,PLS120A,PGR-6100 SERIES,KSDB330N,KRDB,777-575-TS,FA155,KRDI,ALT115-X,KVM4,KRDM,ALT115-S,ECSH34F.08C,KRDB1120M,TDML120AL,KRDS,EFCT SERIES,KRDR,KVM6,TDUIL SERIES,EL731-04-X0,MPS-469X-PMA24,PGR-2601,THD1B410.5S,201-100-DPDT,AF0500 SERIES,ECS40A,SE-TA6A SERIES,TDM12DL,NGRM-ENC-231-01,TSDR442MA2,ELCT5,77C-KW SERIES,KRD3,FS219-45,ISS-102AA-DCS,TH1,A0220.0040,KRD9,KSDB1115SP,TDR4A23,MPU-32-X69X-PMA16,KVM,KRDM1110S,EFCT-26,111P,FS126RC-45,THC,T
EV Charging Solutions EV Infrastructure
型号- SE-704,SCR,L75QS,TMOV,59045,WPB,SPF,LVR,EV1K,WPC,L50QS,RCM01-02,DSB,DSA,SE-CS30,DLAXX,RCM14-03,SP1026,CPC1981Y,RCM14-04,DST,HCD,HCC,RCM20-01,SFPJ,PSR,DCNXX,XGD10402,526,606,IX4351NE,607,PXXX0FNL,RCM14-01,N-SERIES,DSEPXX,DHG,LSIC,59060,LVSP,PPG,SM712,CG3,CG2,LOC110ST,CPC1006NTR,DSEI,215,IXD_6XX,DMA,SPD TYPE 2,CPC1390GRTR,SSA,HE3600,L5QQS,JLLN,SMPD,443E,JLLS,SM24CANX,SE-CS3Q,CPC1017,USW,AQ24CAN,505,LPSM,828,DSIXX
我想了解美国力特SE-135这个接地故障监测器产品,有以下问题需要咨询: 1、这个产品监测的线路电压允许范围是多少?例如10KV线路可用吗? 2、负载端需要安装的这个终端选用28还是45欧姆,使用有何区别?在有漏电情况下这个终端阻值是变为0吗?在不同电压线路的阻值变化是什么状态? 3、移动拖曳电缆实际使用工况中,电缆遇机械损伤等异常情况时,高电压有可能串入GC检测线上,这种情况监测器能正常工作不会损坏吧?
1.SE-135说明书并没有明确可以应用的电压范围,一般情况下是用于35KV以下系统,10KV是可以用的。SE-135说明书参考链接:SE-134C, SE-135 SERIES 2.终端组件的型号是SE-TA12A,并不是一个电阻,是一个齐纳特性终端,SE-135持续持续监测远方终端组件的齐纳特性,从而实现对拖曳电缆接地线完好性的持续监测。漏电一般指的是相电缆绝缘破坏,通过某种介质或者直接接地,比如A相接地故障。SE-135通过连接的电流互感器,可以实现接地故障保护。简单的说,SE-135有两个功能:接地故障保护和接地线监测3. 如果是感应的电压电流,一般没有问题,不会损坏装置和终端。如果串入高压,肯定会损坏装置。因为SE-135只是一个微机保护装置,不能承受高电压串入,可能会损坏终端或者保险丝熔断。
技术问答 发布时间 : 2020-06-05
电流传感器分类及精密电阻核心参数介绍
电流传感器是一种电流检测装置,可以检测被测电流的信息,按比例换算成符合标准的电压或电流信号,以满足信息的传递、处理、存储、显示、记录和控制等要求。本文中LITTELFUSE将为大家介绍电流传感器分类及精密电阻核心参数。
技术探讨 发布时间 : 2024-01-05
【产品】用于电阻接地系统和直接接地系统的接地故障监测器SE-701系列
Littelfuse推出的SE-701系列是一款基于微处理器的接地故障继电器,用于电阻接地系统和直接接地系统。除了常见系统外,它还特别适用于谐波量大的系统。SE-701 可提供主厂保护、馈线级保护或单独负载保护。选择恰当的电流互感器可实现所需的启动电流范围。可连接输出触点,用于保护跳闸电路或报警指示电路。模拟输出可与PLC 或电流表配合使用。
新产品 发布时间 : 2019-10-26
SE-330, SE-330HV SERIES (PGR-5330)
型号- EFCT,SE-330HV,ER-15KV,ER SERIES,PGR-5330,SE-CS30,SE-330,ER-5KV,ER-600VC,SE-330-XX-XX
宏发携前沿技术和强大解决方案,亮相北京国际风能大会,助力风电产业高质量发展
大家期待已久的北京国际风能大会暨展览会将于10月17日—19日在中国国际会展中心举行宏发展位号:W1 B09。此次宏发将携前沿技术和强大解决方案与众多行业企业一起助力风电产业高质量发展欢迎大家的莅临。
原厂动态 发布时间 : 2023-11-11
Littelfuse(力特)配件选型指南
目录- Protection Relays Software ELECTRICAL ACCESSORIES Ground Reference Modules, High-Tension Couplers,Relay Testers METERS & SENSING RESISTORS COMMUNICATION ADAPTERS,MODULES TERMINATIONS,ADAPTERS LIQUID LEVEL PROBES,PROBE HOLDERS Current Transformers Mounting Adapters,Enclosures
型号- TDR SERIES,RK-325,CT-0050-F10,111-INSIDER-P,SD12-PC,RK-332,MPS-469X-PMA24,0KLK002.T,TDMB,TDB SERIES,SE-TA6ASF-WL,SE-CS40-6,TDML,ZSCT30-31,A0220,RK-325I,SE-TA6A-WL,TDMH,ELCT5,P1004-XX-(X),SE-134C,P1004-12-X,RK-105,SE-FLASH,MPU-32-X69X-PMA16,SE-CS30-8,EFCT-26,SE-CS30-5,111P,MPU-32-SMK,EFCT-1,PSC11,PGE-72KV,EFCT-2,CT-0100-F10,SE-CS30-4,LLP-24,PSCRB8,SE-330HV,RK-105I,CT-XXX-D10,NDS-11,MPS-RTD,RM1000 NEMA 4,CT200,SE-485-DIN,RK-102,CT-0600-F20,ER-25KV,PGC-31FC,ARP SERIES,VTP SERIES,CT-0800-F30,RM2000-RTDW,CIO-DN-P,CT-0400-D20,MPU-16A-Y92A-96N,V150LA10AP,INFORMER,VFPU,EFCT-1FC,RK-132,LPSM003Z,235P,A0300,P0700-409,SE-485-PP,233P-1.5,SE-CS10-2.5,PC-XXX-LLC-CZ,ELCT30-31,SE-CS30-70,CBLTP,FPS,P1023-7,P1023-6,TCSA,P1023-2,ER-35KV,TDSH,SE-GRM500,A0200,SE-TA6,SE-TA12B,TDSL,SE-TA12A,EFCT,P1011-6,OT11PC,CT-0300-D10,TDS SERIES,SE-MON330,SE-CS10-8,SE-CS10-6,PGA-0T6A,PGC-3082,SE-CS10-4,FS500,MPU-32,SE-330AU,D0050,CT-0400-F20,ZSCT5,P0400-82,P0400-83,TDI SERIES,PGE-600V,TDM SERIES,P0400-86,ER-5KV,EL731,CT-0150-D10,PGC-4064,CT-0400-F30,P1004-175,P1004-174,RM2000,RS485MS-2W,233P-1.5-ENCL,PGC-5025,ZSCT,PGR-3200,PGE-15KV,FS400,RM1000-3R,LCSC10T12,CT-XXXX-DXX,P1004-XX,SE-CS30-26,ELCT5-31,PHS,RM1000,PGA-1100.0010,CT-0200-D20,SE-GRM780,CT-0300-D20,P1004-95,P1004-XX-X,CIO-777-PR,CT-1200-F15,D1000,P1004-199,77X,OL-RESET,CT-0300-F10,CT-0050-D10,TRB,ER-600VC,777 SERIES,TRM,CT-XXX-D10,TS2,TS1,C103PM,TRS,TS4,C T-XXXX-DXX,TS6,ACBC-120,SE-TA12ASF-WL,PMA-16-RTDB,231-INSIDER-P,M500,ER-1000HV,PGC-5060,VTPDF,ELCT30,CT-0200-D10,ZSCT5-31,PSC8,THD7,ER-600,CT-XXXX-FXX,SE-MRE-600,234-P,PLM,ERDI,455,CT-0100-D10,ERDM,PLS,PLR,CT-0200-F20,PGC-5095,THDM,SE-135,111P-ENCL,CT-0300-F20,PMA,ELCT5-88,PGE-05KV,SE-100T,MPU-CIM,LLC2,COM 4-20,LLC1,LLC6,LLC5,LLC4,SE-145,RM2000CBM,NEMA-3R-L A,LLC8,RM-1000-ENCL,SE-IP65CVR-G,ERD3,SE-IP65CVR-M,PMA-4,P1004-95-X,PGC-4210,PMA-3,PMA-2,VTP0E,PGE-35KV,FS100,PMA-8,LSR-XX,PMA-7,PMA-6,TVM,SE-GRM250,PPI-600V,PGA-0510,TVW,PMA-23,PMA-24,PMA-21,C T-XXXX-FXX,PMA-9,601-CS-D-P1,SE-GRM125,777-ACCUPOWER,ER-72KV,LSRU,LSRX,777-MRSW,CIO-EN,SE-325,460-15-100-LLS,P0400-12,CT-0200-F10,PGA-0500,P0400-17,AC700-CUA,TCS SERIES,P1015-18,SE-TA6-SM,PGC-3140,ECS SERIES,MPS-DIF,SE-330,PGC-4108,P0400-27,MSM SERIES,SE-GRM024,PGE-05WV,P1004-13,P1004-14,P1004-15,P1004-16,P1004-10,PMA-18,P1004-12,PMA-16,PMA-17,PMA-14,PMA-15,PMA-12,PMA-13,PMA-10,SE-105,P0700-7,P0700-8,PGC-3026,P1015-14,SE-107,PGC-2056,PGC-5200,P1015-13,CT-0150-F20,TSU2000,PGR-3100,RK-13,TDBH,P1004-17,TDBL,FH3P,FPU-32,SE-GRM048,PGE-25KV,PGR-4300,P1004-31,ASXX,AF0500,TRU SERIES,SE-400,ORB,CT-0150-F10,ORM,ORS,VMPS,VMPU,VRM6048,CT-0500-D20,BZ1,PGC-5130,P1015-64,LSR-0,PGC-2089,ZSCT5-88,PHST-38QTN,OT08PC,77C SERIES,PGC-4160,PGR-8800,LSRX-C,233P-ENCL,ER-5WP,PGH-6000,ZSCT30,SE-704,1N4553B,PGA-LS20,P1023-20,1N5339B,MPS,AC700-SMK,DCSA,TSD7,PC-XXX-LLC-GM,LPSM003ZXID,ER-15KV,PGA-LS30,PRLM,P0400,P0700-21,VTPXX,601 SERIES,P1004-16-X,232-INSIDER,455 SERIES,SE-601,235P-ENCL,CIO-MB,CIO-601CS-DN-P1,SE-GRM1000,TAC1,PGH-5000,VTP5G,VTP5N,PGA-LS10,VTP5K,VTP5P,CA-945,ELCT,SE-COMM-RIS,VTP4B,VTP4F,SE-TA12A-WL,VTP4J,VTP4P,P0200-20,LSRX1,P0200-19,SE-CS30,SE-TA6A,NGRM-ENC,PMA-60,D0920,VTP3B,ECSW,NDS-8,VTP3L,TDIH,TRDU,CIO-120-MB,TDIL,CIO-120-DN-P,AF0100,VTP2C,CT200L,VTP2A,RK-302,VTP2F,777 SERIES,VTP2E,VTP2J,SE-ICUSB232,ELCT30-88,VTP2P,P1004-9,SE-CS10,VTP1B,VTP1D,VTP1C,CT-0075-D10,DSXX,PGR-6101-120,PGR-6100,PGR-6101,PMA-55,SE-703,P0500-179,P0500-178,SE-701
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