SPAJ140C  接地保护装置 用于保护电气设备和人员安全

SPAJ 140 C 过流和接地保护装置

SPAJ 140 C提供选择性的辐射馈线短路保护以及接地故障保护。

在直接接地、电阻接地或阻抗接地电力系统中，过流和接地组合保护装置SPAJ 140 C提供选择性的馈线短路保护以及接地故障保护。

该集成保护装置包含一个过流保护单元和一个带跳闸和发信功能的接地保护单元。这类装置还可以用于其它需要单相，两相，或三相过流保护的应用。此外，该装置还包含一个断路器失灵保护单元。

为何选择ABB？

市场上最常使用的数字式保护继电器

易于使用的继电器，基本功能为过流和接地故障保护

成熟技术

SPAJ 140 C 接地保护装置是一种用于保护电气设备和人员安全的装置。它的作用是将电气设备的金属外壳或导体与地面连接，以确保在设备发生漏电或短路时，电流能够及时地流入地面，从而保护设备和人员免受电击伤害。

SPAJ 140 C 接地保护装置通常由接地线、接地极和接地电阻组成。接地线是连接电气设备金属外壳或导体与接地极的导线，它的作用是将电流引入地面。接地极是埋在地下的金属棒或铜板，它的作用是将电流分散到地下。接地电阻是接地极与地面之间的电阻，它的作用是限制电流的大小，以确保电流能够及时地流入地面。

SPAJ 140 C 接地保护装置是电气设备安全运行的重要保障，它可以有效地防止电击事故的发生，保护设备和人员的安全。在使用电气设备时，应确保接地保护装置的正常运行，并定期进行检查和维护。

SPAJ140C  接地保护装置 用于保护电气设备和人员安全

SPAJ 140 C overcurrent and ground protection

The SPAJ 140C provides selective radiation feeder short-circuit protection and ground fault protection.

In direct, resistance or impedance grounded power systems, the combined overcurrent and ground protection SPAJ 140C provides selective feeder short-circuit protection and ground fault protection.

The integrated protection device includes an overcurrent protection unit and a ground protection unit with tripping and signaling functions. These devices can also be used in other applications that require single-phase, two-phase, or three-phase overcurrent protection. In addition, the device includes a circuit breaker failure protection unit.

Why choose ABB?

The most commonly used digital protective relay on the market

Easy to use relay, basic function is overcurrent and ground fault protection

Mature technology

The SPAJ 140C ground protection device is a device used to protect the safety of electrical equipment and personnel. Its role is to connect the metal shell or conductor of the electrical equipment to the ground to ensure that the current can flow into the ground in time when the equipment is leaking or short circuiting, thus protecting the equipment and personnel from electric shock damage.

The SPAJ 140C ground protection device usually consists of a ground wire, a ground electrode and a ground resistance. The ground wire is the wire connecting the metal shell or conductor of the electrical equipment to the ground pole, and its role is to introduce the current to the ground. The ground electrode is a metal rod or copper plate buried in the ground, and its role is to disperse the current into the ground. Ground resistance is the resistance between the ground electrode and the ground, its role is to limit the size of the current to ensure that the current can flow into the ground in a timely manner.

SPAJ 140C ground protection device is an important guarantee for the safe operation of electrical equipment, which can effectively prevent the occurrence of electric shock accidents and protect the safety of equipment and personnel. When using electrical equipment, ensure the normal operation of the grounding protection device, and check and maintain it regularly.