双城市TOOTEC阀门TA1400-21RPS-250A 韩国Sinwoo S-CON变送器。中山立讯电气有限公司,中山朗立电气有限公司
PDB-1A1-W PDB-1A1-X PDB-1A1-Y PDB-1A1-Z
PDB-1A2-W PDB-1A2-X PDB-1A2-Y PDB-1A2-Z
PDB-1A3-W PDB-1A3-X PDB-1A3-Y PDB-1A3-Z
PDB-1AR-W PDB-1AR-X PDB-1AR-Y PDB-1AR-Z
PDB-1B1-W PDB-1B1-X PDB-1B1-Y PDB-1B1-Z
PDB-1B2-W PDB-1B2-X PDB-1B2-Y PDB-1B2-Z
PDB-1B3-W PDB-1B3-X PDB-1B3-Y PDB-1B3-Z
PDB-1BR-W PDB-1BR-X PDB-1BR-Y PDB-1BR-Z
PDB-1R1-W PDB-1R1-X PDB-1R1-Y PDB-1R1-Z
PDB-1R2-W PDB-1R2-X PDB-1R2-Y PDB-1R2-Z
PDB-1R3-W PDB-1R3-X PDB-1R3-Y PDB-1R3-Z
PDB-1RR-W PDB-1RR-X PDB-1RR-Y PDB-1RR-Z
PDB-2A1-W PDB-2A1-X PDB-2A1-Y PDB-2A1-Z
PDB-2A2-W PDB-2A2-X PDB-2A2-Y PDB-2A2-Z
PDB-2A3-W PDB-2A3-X PDB-2A3-Y PDB-2A3-Z
PDB-2AR-W PDB-2AR-X PDB-2AR-Y PDB-2AR-Z
PDB-2B1-W PDB-2B1-X PDB-2B1-Y PDB-2B1-Z
PDB-2B2-W PDB-2B2-X PDB-2B2-Y PDB-2B2-Z
PDB-2B3-W PDB-2B3-X PDB-2B3-Y PDB-2B3-Z
PDB-2BR-W PDB-2BR-X PDB-2BR-Y PDB-2BR-Z
PDB-2R1-W PDB-2R1-X PDB-2R1-Y PDB-2R1-Z
PDB-2R2-W PDB-2R2-X PDB-2R2-Y PDB-2R2-Z
PDB-2R3-W PDB-2R3-X PDB-2R3-Y PDB-2R3-Z
PDB-2RR-W PDB-2RR-X PDB-2RR-Y PDB-2RR-Z
P/D-4AA-W P/D-4AA-X P/D-4AA-Y P/D-4AA-Z
P/D-4AB-W P/D-4AB-X P/D-4AB-Y P/D-4AB-Z
P/D-4AC-W P/D-4AC-X P/D-4AC-Y P/D-4AC-Z
P/D-4AD-W P/D-4AD-X P/D-4AD-Y P/D-4AD-Z
P/D-4AR-W P/D-4AR-X P/D-4AR-Y P/D-4AR-Z
P/D-4AN-W P/D-4AN-X P/D-4AN-Y P/D-4AN-Z
P/D-4BA-W P/D-4BA-X P/D-4BA-Y P/D-4BA-Z
P/D-4BB-W P/D-4BB-X P/D-4BB-Y P/D-4BB-Z
P/D-4BC-W P/D-4BC-X P/D-4BC-Y P/D-4BC-Z
而软起动器内置的过载保护功能是根据I2t算法用电子装置来完成的。它可根据起动负荷的轻重即起动时间的长短不同来选择不同的脱扣特性曲线以避免在起动过程中误跳。由于它的过载保护是可编程的,从而为用户提供了更大的灵活性。并且选用带内置过载保护功能的软起动器可以省去热继电器,使控制柜内布线更简单,迅速。4)参数测试功能可通过按键在显示窗口选择显示电机的运行参数如三相电压值、三相电流值、功率因数、运行时间等,而不需增加任何仪表。此功能可使用户很方便的查询电机在运行过程中的各种参数。5)消防水泵定期自动试机由于消防水泵属消防应急设施,平常时长期处于不使用状态,容易出现泵卡死的现象。一旦火灾发生时如果无法正常运转。
双城市TOOTEC阀门TA1400-21RPS-250A
P/D-4BD-W P/D-4BD-X P/D-4BD-Y P/D-4BD-Z
P/D-4BR-W P/D-4BR-X P/D-4BR-Y P/D-4BR-Z
P/D-4BN-W P/D-4BN-X P/D-4BN-Y P/D-4BN-Z
P/D-4CA-W P/D-4CA-X P/D-4CA-Y P/D-4CA-Z
P/D-4CB-W P/D-4CB-X P/D-4CB-Y P/D-4CB-Z
P/D-4CC-W P/D-4CC-X P/D-4CC-Y P/D-4CC-Z
P/D-4CD-W P/D-4CD-X P/D-4CD-Y P/D-4CD-Z
P/D-4CR-W P/D-4CR-X P/D-4CR-Y P/D-4CR-Z
P/D-4CN-W P/D-4CN-X P/D-4CN-Y P/D-4CN-Z
P/D-4DA-W P/D-4DA-X P/D-4DA-Y P/D-4DA-Z
P/D-4DB-W P/D-4DB-X P/D-4DB-Y P/D-4DB-Z
P/D-4DC-W P/D-4DC-X P/D-4DC-Y P/D-4DC-Z
P/D-4DD-W P/D-4DD-X P/D-4DD-Y P/D-4DD-Z
P/D-4DR-W P/D-4DR-X P/D-4DR-Y P/D-4DR-Z
P/D-4DN-W P/D-4DN-X P/D-4DN-Y P/D-4DN-Z
P/D-4RA-W P/D-4RA-X P/D-4RA-Y P/D-4RA-Z
P/D-4RB-W P/D-4RB-X P/D-4RB-Y P/D-4RB-Z
P/D-4RC-W P/D-4RC-X P/D-4RC-Y P/D-4RC-Z
P/D-4RD-W P/D-4RD-X P/D-4RD-Y P/D-4RD-Z
P/D-4RR-W P/D-4RR-X P/D-4RR-Y P/D-4RR-Z
P/D-4RN-W P/D-4RN-X P/D-4RN-Y P/D-4RN-Z
P/D-9AA-W P/D-9AA-X P/D-9AA-Y P/D-9AA-Z
P/D-9AB-W P/D-9AB-X P/D-9AB-Y P/D-9AB-Z
P/D-9AC-W P/D-9AC-X P/D-9AC-Y P/D-9AC-Z
P/D-9AD-W P/D-9AD-X P/D-9AD-Y P/D-9AD-Z
P/D-9AR-W P/D-9AR-X P/D-9AR-Y P/D-9AR-Z
P/D-9AN-W P/D-9AN-X P/D-9AN-Y P/D-9AN-Z
P/D-9BA-W P/D-9BA-X P/D-9BA-Y P/D-9BA-Z
P/D-9BB-W P/D-9BB-X P/D-9BB-Y P/D-9BB-Z
P/D-9BC-W P/D-9BC-X P/D-9BC-Y P/D-9BC-Z
P/D-9BD-W P/D-9BD-X P/D-9BD-Y P/D-9BD-Z
P/D-9BR-W P/D-9BR-X P/D-9BR-Y P/D-9BR-Z
P/D-9BN-W P/D-9BN-X P/D-9BN-Y P/D-9BN-Z
P/D-9CA-W P/D-9CA-X P/D-9CA-Y P/D-9CA-Z
P/D-9CB-W P/D-9CB-X P/D-9CB-Y P/D-9CB-Z
P/D-9CC-W P/D-9CC-X P/D-9CC-Y P/D-9CC-Z
P/D-9CD-W P/D-9CD-X P/D-9CD-Y P/D-9CD-Z
P/D-9CR-W P/D-9CR-X P/D-9CR-Y P/D-9CR-Z
P/D-9CN-W P/D-9CN-X P/D-9CN-Y P/D-9CN-Z
P/D-9DA-W P/D-9DA-X P/D-9DA-Y P/D-9DA-Z
P/D-9DB-W P/D-9DB-X P/D-9DB-Y P/D-9DB-Z
P/D-9DC-W P/D-9DC-X P/D-9DC-Y P/D-9DC-Z
P/D-9DD-W P/D-9DD-X P/D-9DD-Y P/D-9DD-Z
P/D-9DR-W P/D-9DR-X P/D-9DR-Y P/D-9DR-Z
抗振性能强。采用单片微处理器通过软件设计,所以精度高、抗干扰性强。小时计采用液晶显示,无机械部分,所以更可靠和更具有时代感。由于是指针指示符合传统视认习惯,又便于计算机远程处理和网络化要求,所以数字化步进电机仪表是现代汽车仪表和摩托车仪表的发展趋势,Switec公司的步进电机在已广泛用于各种汽车、摩托车和工程机械仪表。车用微型步进电机是一种的新型汽车仪表配件,利用它设计的仪表既符合传统视认习惯又能满足数化处理要求,是现代化仪表的理想配件。转速表分类编辑离心式转速仪离心式转速仪由传动部分、接受器和指示器等部分组成。它是一种传统的转速测量工具,它的主要优点是结构简单,使用方便,缺点是精度比较低。
双城市TOOTEC阀门TA1400-21RPS-250A
P/D-9DN-W P/D-9DN-X P/D-9DN-Y P/D-9DN-Z
P/D-9RA-W P/D-9RA-X P/D-9RA-Y P/D-9RA-Z
P/D-9RB-W P/D-9RB-X P/D-9RB-Y P/D-9RB-Z
P/D-9RC-W P/D-9RC-X P/D-9RC-Y P/D-9RC-Z
P/D-9RD-W P/D-9RD-X P/D-9RD-Y P/D-9RD-Z
P/D-9RR-W P/D-9RR-X P/D-9RR-Y P/D-9RR-Z
P/D-9RN-W P/D-9RN-X P/D-9RN-Y P/D-9RN-Z
PMC-2A1-W PMC-2A1-X PMC-2A1-Y PMC-2A1-X
PMC-2A2-W PMC-2A2-X PMC-2A2-Y PMC-2A2-X
PMC-2A3-W PMC-2A3-X PMC-2A3-Y PMC-2A3-X
PMC-2A4-W PMC-2A4-X PMC-2A4-Y PMC-2A4-X
PMC-2A5-W PMC-2A5-X PMC-2A5-Y PMC-2A5-X
PMC-2A6-W PMC-2A6-X PMC-2A6-Y PMC-2A6-X
PMC-2A7-W PMC-2A7-X PMC-2A7-Y PMC-2A7-X
PMC-2A8-W PMC-2A8-X PMC-2A8-Y PMC-2A8-X
PMC-2AR-W PMC-2AR-X PMC-2AR-Y PMC-2AR-X
PMC-2AN-W PMC-2AN-X PMC-2AN-Y PMC-2AN-X
PMC-2R1-W PMC-2R1-X PMC-2R1-Y PMC-2R1-X
PMC-2R2-W PMC-2R2-X PMC-2R2-Y PMC-2R2-X
PMC-2R3-W PMC-2R3-X PMC-2R3-Y PMC-2R3-X
PMC-2R4-W PMC-2R4-X PMC-2R4-Y PMC-2R4-X
PMC-2R5-W PMC-2R5-X PMC-2R5-Y PMC-2R5-X
PMC-2R6-W PMC-2R6-X PMC-2R6-Y PMC-2R6-X
PMC-2R7-W PMC-2R7-X PMC-2R7-Y PMC-2R7-X
PMC-2R8-W PMC-2R8-X PMC-2R8-Y PMC-2R8-X
PMC-2RR-W PMC-2RR-X PMC-2RR-Y PMC-2RR-X
PMC-2RN-W PMC-2RN-X PMC-2RN-Y PMC-2RN-X
PMC-4A1-W PMC-4A1-X PMC-4A1-Y PMC-4A1-X
PMC-4A2-W PMC-4A2-X PMC-4A2-Y PMC-4A2-X
PMC-4A3-W PMC-4A3-X PMC-4A3-Y PMC-4A3-X
PMC-4A4-W PMC-4A4-X PMC-4A4-Y PMC-4A4-X
PMC-4A5-W PMC-4A5-X PMC-4A5-Y PMC-4A5-X
PMC-4A6-W PMC-4A6-X PMC-4A6-Y PMC-4A6-X
PMC-4A7-W PMC-4A7-X PMC-4A7-Y PMC-4A7-X
PMC-4A8-W PMC-4A8-X PMC-4A8-Y PMC-4A8-X
PMC-4AR-W PMC-4AR-X PMC-4AR-Y PMC-4AR-X
PMC-4AN-W PMC-4AN-X PMC-4AN-Y PMC-4AN-X
PMC-4R1-W PMC-4R1-X PMC-4R1-Y PMC-4R1-X
PMC-4R2-W PMC-4R2-X PMC-4R2-Y PMC-4R2-X
PMC-4R3-W PMC-4R3-X PMC-4R3-Y PMC-4R3-X
PMC-4R4-W PMC-4R4-X PMC-4R4-Y PMC-4R4-X
PMC-4R5-W PMC-4R5-X PMC-4R5-Y PMC-4R5-X
PMC-4R6-W PMC-4R6-X PMC-4R6-Y PMC-4R6-X
PMC-4R7-W PMC-4R7-X PMC-4R7-Y PMC-4R7-X
电压整定范围:有辅源(0.1-99.9V,40-450V)无辅源(19-130V,85-265V,180-440V)功率消耗:交流回路功耗小于1VA(交流额定值100V时)整定误差a、在整定范围内,整定平均误差的值不大于3%,平均误差=(5次测量平均值-整定值)/整定值×。b、在基准条件下,同一整定值上测量的5次动作值的值和值应不大于的4%。c、在-10℃~50℃的温度下,任一整定点误差的值应不大于整定值的4%。d、在辅助电压80~110%变化范围内,任一整定值整定误差的值应不大于4%。动作时间a、过电压继电器:1.2倍整定值的动作时间不大于25ms;2倍整定值的动作时间不大于20ms;
双城市TOOTEC阀门TA1400-21RPS-250A
PMC-4R8-W PMC-4R8-X PMC-4R8-Y PMC-4R8-X
PMC-4RR-W PMC-4RR-X PMC-4RR-Y PMC-4RR-X
PMC-4RN-W PMC-4RN-X PMC-4RN-Y PMC-4RN-X
PMC-7A1-W PMC-7A1-X PMC-7A1-Y PMC-7A1-X
PMC-7A2-W PMC-7A2-X PMC-7A2-Y PMC-7A2-X
PMC-7A3-W PMC-7A3-X PMC-7A3-Y PMC-7A3-X
PMC-7A4-W PMC-7A4-X PMC-7A4-Y PMC-7A4-X
PMC-7A5-W PMC-7A5-X PMC-7A5-Y PMC-7A5-X
PMC-7A6-W PMC-7A6-X PMC-7A6-Y PMC-7A6-X
PMC-7A7-W PMC-7A7-X PMC-7A7-Y PMC-7A7-X
PMC-7A8-W PMC-7A8-X PMC-7A8-Y PMC-7A8-X
PMC-7AR-W PMC-7AR-X PMC-7AR-Y PMC-7AR-X
PMC-7AN-W PMC-7AN-X PMC-7AN-Y PMC-7AN-X
PMC-7R1-W PMC-7R1-X PMC-7R1-Y PMC-7R1-X
PMC-7R2-W PMC-7R2-X PMC-7R2-Y PMC-7R2-X
PMC-7R3-W PMC-7R3-X PMC-7R3-Y PMC-7R3-X
PMC-7R4-W PMC-7R4-X PMC-7R4-Y PMC-7R4-X
PMC-7R5-W PMC-7R5-X PMC-7R5-Y PMC-7R5-X
PMC-7R6-W PMC-7R6-X PMC-7R6-Y PMC-7R6-X
PMC-7R7-W PMC-7R7-X PMC-7R7-Y PMC-7R7-X
PMC-7R8-W PMC-7R8-X PMC-7R8-Y PMC-7R8-X
PMC-7RR-W PMC-7RR-X PMC-7RR-Y PMC-7RR-X
PMC-7RN-W PMC-7RN-X PMC-7RN-Y PMC-7RN-X
PMC-9A1-W PMC-9A1-X PMC-9A1-Y PMC-9A1-X
PMC-9A2-W PMC-9A2-X PMC-9A2-Y PMC-9A2-X
PMC-9A3-W PMC-9A3-X PMC-9A3-Y PMC-9A3-X
PMC-9A4-W PMC-9A4-X PMC-9A4-Y PMC-9A4-X
PMC-9A5-W PMC-9A5-X PMC-9A5-Y PMC-9A5-X
PMC-9A6-W PMC-9A6-X PMC-9A6-Y PMC-9A6-X
PMC-9A7-W PMC-9A7-X PMC-9A7-Y PMC-9A7-X
PMC-9A8-W PMC-9A8-X PMC-9A8-Y PMC-9A8-X
PMC-9AR-W PMC-9AR-X PMC-9AR-Y PMC-9AR-X
PMC-9AN-W PMC-9AN-X PMC-9AN-Y PMC-9AN-X
PMC-9R1-W PMC-9R1-X PMC-9R1-Y PMC-9R1-X
PMC-9R2-W PMC-9R2-X PMC-9R2-Y PMC-9R2-X
PMC-9R3-W PMC-9R3-X PMC-9R3-Y PMC-9R3-X
PMC-9R4-W PMC-9R4-X PMC-9R4-Y PMC-9R4-X
PMC-9R5-W PMC-9R5-X PMC-9R5-Y PMC-9R5-X
PMC-9R6-W PMC-9R6-X PMC-9R6-Y PMC-9R6-X
PMC-9R7-W PMC-9R7-X PMC-9R7-Y PMC-9R7-X
空心线圈往往由漆包线均匀绕制在环形骨架上制成,骨架采用塑料、陶瓷等非铁磁材料,其相对磁导率与空气的相对磁导率相同,这是空心线圈有别于带铁心的电流互感器的一个显著特征。(3)铁心线圈式低功率电流互感器(LPCT)。它是传统电磁式电流互感器的一种发展。其按照高阻抗电阻设计,在非常高的一次电流下,饱和特性得到改善,扩大了测量范围,降低了功率消耗,可以无饱和的高准确度测量高达短路电流的过电流、全偏移短路电流,测量和保护可共用一个铁心线圈式低功率电流互感器,其输出为电压信号。两者的使用发展方向由于电磁式电流互感器存在的易饱和、非线性及频带窄等问题,电子式电流互感器逐渐兴起。电子式电流互感器一般具有抗磁饱和、低功耗、宽频带等优点。
双城市TOOTEC阀门TA1400-21RPS-250A
PMC-9R8-W PMC-9R8-X PMC-9R8-Y PMC-9R8-X
PMC-9RR-W PMC-9RR-X PMC-9RR-Y PMC-9RR-X
PMC-9RN-W PMC-9RN-X PMC-9RN-Y PMC-9RN-X
AS-2A1-W AS-2A1-X AS-2A1-Y AS-2A1-Z
AS-2A2-W AS-2A2-X AS-2A2-Y AS-2A2-Z
AS-2A3-W AS-2A3-X AS-2A3-Y AS-2A3-Z
AS-2A4-W AS-2A4-X AS-2A4-Y AS-2A4-Z
AS-2AR-W AS-2AR-X AS-2AR-Y AS-2AR-Z
AS-2B1-W AS-2B1-X AS-2B1-Y AS-2B1-Z
AS-2B2-W AS-2B2-X AS-2B2-Y AS-2B2-Z
AS-2B3-W AS-2B3-X AS-2B3-Y AS-2B3-Z
AS-2B4-W AS-2B4-X AS-2B4-Y AS-2B4-Z
AS-2BR-W AS-2BR-X AS-2BR-Y AS-2BR-Z
AS-2C1-W AS-2C1-X AS-2C1-Y AS-2C1-Z
AS-2C2-W AS-2C2-X AS-2C2-Y AS-2C2-Z
AS-2C3-W AS-2C3-X AS-2C3-Y AS-2C3-Z
AS-2C4-W AS-2C4-X AS-2C4-Y AS-2C4-Z
AS-2CR-W AS-2CR-X AS-2CR-Y AS-2CR-Z
AS-2D1-W AS-2D1-X AS-2D1-Y AS-2D1-Z
AS-2D2-W AS-2D2-X AS-2D2-Y AS-2D2-Z
AS-2D3-W AS-2D3-X AS-2D3-Y AS-2D3-Z
AS-2D4-W AS-2D4-X AS-2D4-Y AS-2D4-Z
AS-2DR-W AS-2DR-X AS-2DR-Y AS-2DR-Z
AS-2E1-W AS-2E1-X AS-2E1-Y AS-2E1-Z
AS-2E2-W AS-2E2-X AS-2E2-Y AS-2E2-Z
AS-2E3-W AS-2E3-X AS-2E3-Y AS-2E3-Z
AS-2E4-W AS-2E4-X AS-2E4-Y AS-2E4-Z
AS-2ER-W AS-2ER-X AS-2ER-Y AS-2ER-Z
AS-2G1-W AS-2G1-X AS-2G1-Y AS-2G1-Z
AS-2G2-W AS-2G2-X AS-2G2-Y AS-2G2-Z
AS-2G3-W AS-2G3-X AS-2G3-Y AS-2G3-Z
AS-2G4-W AS-2G4-X AS-2G4-Y AS-2G4-Z
AS-2GR-W AS-2GR-X AS-2GR-Y AS-2GR-Z
AS-2R1-W AS-2R1-X AS-2R1-Y AS-2R1-Z
AS-2R2-W AS-2R2-X AS-2R2-Y AS-2R2-Z
AS-2R3-W AS-2R3-X AS-2R3-Y AS-2R3-Z
AS-2R4-W AS-2R4-X AS-2R4-Y AS-2R4-Z
AS-2RR-W AS-2RR-X AS-2RR-Y AS-2RR-Z
AS-4A1-W AS-4A1-X AS-4A1-Y AS-4A1-Z
AS-4A2-W AS-4A2-X AS-4A2-Y AS-4A2-Z
AS-4A3-W AS-4A3-X AS-4A3-Y AS-4A3-Z
AS-4A4-W AS-4A4-X AS-4A4-Y AS-4A4-Z
采集的数据存储在RAM存储器中,它能以曲线、工程量数据和百分量等多种形式显示实时数据或追忆历史数据,也可以将数据通过RS-485通讯接口远传。宽屏彩色/蓝色无纸记录仪集显示、处理、记录、报警等多种功能于一身,可以采集、保存、分析各种工业过程中的重要数据,主要应用在冶金、石油、化工、建材、造纸、食品、制药、热处理、水处理等各种工业现场,是替代传统记录仪的新一代无纸记录仪。组态方法编辑随着现代化工业控制范畴和新技术范畴的疾速开展,以工业微处置器CPU为中心的新型显现记载仪表已被越来越普遍地应用到工业消费和科学研讨的各个部门。进入20世纪90年代以后,各工业自动化仪表消费厂家纷繁开端研制推出新型的显现记载仪表--无笔。
双城市TOOTEC阀门TA1400-21RPS-250A
AS-4AR-W AS-4AR-X AS-4AR-Y AS-4AR-Z
AS-4B1-W AS-4B1-X AS-4B1-Y AS-4B1-Z
AS-4B2-W AS-4B2-X AS-4B2-Y AS-4B2-Z
AS-4B3-W AS-4B3-X AS-4B3-Y AS-4B3-Z
AS-4B4-W AS-4B4-X AS-4B4-Y AS-4B4-Z
AS-4BR-W AS-4BR-X AS-4BR-Y AS-4BR-Z
AS-4C1-W AS-4C1-X AS-4C1-Y AS-4C1-Z
AS-4C2-W AS-4C2-X AS-4C2-Y AS-4C2-Z
AS-4C3-W AS-4C3-X AS-4C3-Y AS-4C3-Z
AS-4C4-W AS-4C4-X AS-4C4-Y AS-4C4-Z
AS-4CR-W AS-4CR-X AS-4CR-Y AS-4CR-Z
AS-4D1-W AS-4D1-X AS-4D1-Y AS-4D1-Z
AS-4D2-W AS-4D2-X AS-4D2-Y AS-4D2-Z
AS-4D3-W AS-4D3-X AS-4D3-Y AS-4D3-Z
AS-4D4-W AS-4D4-X AS-4D4-Y AS-4D4-Z
AS-4DR-W AS-4DR-X AS-4DR-Y AS-4DR-Z
AS-4E1-W AS-4E1-X AS-4E1-Y AS-4E1-Z
AS-4E2-W AS-4E2-X AS-4E2-Y AS-4E2-Z
AS-4E3-W AS-4E3-X AS-4E3-Y AS-4E3-Z
AS-4E4-W AS-4E4-X AS-4E4-Y AS-4E4-Z
AS-4ER-W AS-4ER-X AS-4ER-Y AS-4ER-Z
AS-4G1-W AS-4G1-X AS-4G1-Y AS-4G1-Z
AS-4G2-W AS-4G2-X AS-4G2-Y AS-4G2-Z
AS-4G3-W AS-4G3-X AS-4G3-Y AS-4G3-Z
AS-4G4-W AS-4G4-X AS-4G4-Y AS-4G4-Z
AS-4GR-W AS-4GR-X AS-4GR-Y AS-4GR-Z
AS-4R1-W AS-4R1-X AS-4R1-Y AS-4R1-Z
AS-4R2-W AS-4R2-X AS-4R2-Y AS-4R2-Z
AS-4R3-W AS-4R3-X AS-4R3-Y AS-4R3-Z
AS-4R4-W AS-4R4-X AS-4R4-Y AS-4R4-Z
AS-4RR-W AS-4RR-X AS-4RR-Y AS-4RR-Z
由于电压互感器内阻抗很小,若二次回路短路时,会出现很大的电流,将损坏二次设备甚至危及人身。电压互感器可以在二次侧装设熔断器以保护其自身不因二次侧短路而损坏。在可能的情况下,一次侧也应装设熔断器以保护高压电网不因互感器高压绕组或引线故障危及一次系统的。5.为了确保人在接触测量仪表和继电器时的,电压互感器二次绕组必须有一点接地。因为接地后,当一次和二次绕组间的绝缘损坏时,可以防止仪表和继电器出现高电压危及人身。电压互感器副边不容许短路。[8]异常与处理编辑常见异常(1)三相电压指示不平衡:一相降低(可为零),另两相正常,线电压不正常,或伴有声、光信号,可能是互感器高压或低压熔断器熔断[9];(2)中性点非有效接地系统。
双城市TOOTEC阀门TA1400-21RPS-250A