>>>>>型号:SPAJ140C | 过流和接地故障继电器 | 具有定时或反定最小时间(IDMT)特性
[产品说明]
品牌： ABB
型号：SPAJ140C
产品类型：过流和接地故障继电器
付款方式：电汇，西联
汇款 装运港：中国厦门
交货时间：1-3个工作日
条件：全新和 100% 原始
保修：12 个月
SPAJ140C产品特点与功能：
综合的保护继电器包括过电流元件和接地故障元件两部分，它们都具有高度灵活的跳闸和信号装置。
馈线保护可根据使用要求，采用单相、两相或三相过流保护以及无方向地接地故障保护。
过流与接地故障继电器还包括有断路器失灵保护。
具有三相、低设置相位过流装置，具有定时或反定最小时间(IDMT)特性。
具有瞬时或定时特性的三相高整定相位过流装置。
SPAJ140C应用领域：
覆盖电力、建筑、局配网等行业。
适用于架空线路、电缆线路、进出线柜等场景。
SPAJ140C技术参数与特性：
宽定值范围，精确的数字定值，定值长期稳定。
继电器可整定两组整定值。
利用按钮和数字显示器进行就地人机对话。
对电场和磁场有很强的抗干扰能力。
SPAJ 140c型过流和接地故障组合式继电器用于接地、电阻接地或阻抗接地的电力系统中径向馈线的选择性短路和接地故障保护。 这种集成保护继电器包括一个过流单元和一个具有灵活跳闸和信号设施的接地故障单元。 这些继电器也可用于其他应用，需要单，二，或三相过流保护。 这种组合式过流和接地故障继电器还包括一个断路器故障保护装置。
SPAJ140C范围：
组合式过流和接地故障保护
产品的好处
市场上最常用的数字保护继电器
SPAJ140C产品特性：
易于使用的继电器，具有过流和接地故障保护的最基本功能
成熟的技术
具有定时间或反定最小时间(IDMT)特性的三相低定相过流装置
三相，高定相过流装置，瞬时或定时运行
具有定时间或逆定最小时间(IDMT)特性的低集接地故障单元
具有瞬时或定时运行的高设定值接地故障装置
内置断路器故障保护
自我监控系统持续监控电子设备和微处理器的运行情况
组合式过流接地故障继电器二级继电器是否要连接到受保护对象的电流互感器。三相过流装置和接地故障装置连续测量被保护对象的相电流电流和中性点电流对象。检测到故障后，继电器启动;
触发断路器，启动自动重合闸，根据应用和配置提供告警、故障数据记录等功能，继电器的功能。
当相电流超过设定启动时低定级电流，过电流设备在预设后开始发送启动信号~ 60ms启动时间。 当设定操作时间为定时操作或计算操作逆时间运行时间过去，过电流单元运行。 以同样的方式，过流单元的高设置级I>>在预设~40毫秒启动后开始提供启动信号时间，当超过设定的启动电流时。 当设定的运行时间过去时，超电流租金单元运行。
[其他型号推荐]
>>>>> Model :SPAJ140C | Overcurrent and ground fault relay | has timing or inverse Fixed Minimum time (IDMT) characteristics
Brand: ABB
Model: SPAJ140C
Product Type: Over current and ground fault relay
Payment method: Wire transfer, Western Union
Port of shipment for remittance: Xiamen, China
Delivery time: 1-3 working days
Condition: New and 100% original
Warranty: 12 months
SPAJ140C Features and functions:
The comprehensive protective relay includes overcurrent element and ground fault element, both of which have highly flexible tripping and signaling devices.
Feeder protection can be used according to the requirements of single-phase, two-phase or three-phase overcurrent protection and directional ground fault protection.
Overcurrent and ground fault relays also include circuit breaker failure protection.
A three-phase, low-setting phase overcurrent device with timing or inverse minimum time (IDMT) characteristics.
Three-phase high tuning phase overcurrent device with instantaneous or timing characteristics.
SPAJ140C Application areas:
Covering power, construction, office distribution network and other industries.
Applicable to overhead lines, cable lines, and cable input and outlet cabinets.
SPAJ140C technical parameters and features:
Wide value range, accurate digital value, long-term stability of the value.
The relay can set two sets of setting values.
In-place human-machine dialogue using buttons and digital displays.
Strong anti-interference ability to electric and magnetic fields.
The SPAJ 140c overcurrent and ground fault relay is used for selective short circuit and ground fault protection of radial feeders in power systems with ground, resistance or impedance ground. The integrated protective relay includes an overcurrent unit and a ground fault unit with flexible tripping and signaling facilities. These relays can also be used in other applications that require single, two, or three phase overcurrent protection. The combined overcurrent and ground fault relay also includes a circuit breaker fault protection device.
SPAJ140C range:
Combined overcurrent and ground fault protection
Product benefits
The most commonly used digital protective relay on the market
SPAJ140C Features:
Easy to use relay with the most basic functions of overcurrent and ground fault protection
Mature technology
A three-phase low-phasing overcurrent device with time-interval or inverse-fixed minimum time (IDMT) characteristics
Three-phase, high phasing overcurrent device for instantaneous or timed operation
Low set ground fault unit with timing interval or inverse Fixed minimum time (IDMT) characteristics
High setpoint ground fault device with instantaneous or timed operation
Built-in circuit breaker failure protection
Self-monitoring systems continuously monitor the performance of electronic devices and microprocessors
Combined overcurrent ground fault relay Specifies whether the secondary relay is to be connected to the current transformer of the protected object. Three-phase overcurrent device and ground The fault device continuously measures the phase current current and neutral current object of the protected object. When a fault is detected, the relay starts;
Trigger the circuit breaker, start the automatic reclosing, according to the application and configuration to provide alarm, fault data recording and other functions, relay functions.
When the phase current exceeds the set start current, the overcurrent device starts to send a start signal after the preset start time ~ 60ms. When the operation time is set to regular operation or the operation reverse time is calculated, the running time passes through current unit. In the same way, the high setting stage I>> of the overcurrent unit begins to provide start signal time after the preset ~40 ms start, when the set start current is exceeded. When the set run time has passed, the overcurrent rental unit runs.
