ALSTOM CDG11AF9007ACH接地故障继电器 PDF资料
1.产 品 资 料 介 绍：
ALSTOM CDG11AF9007ACH 是一款机械式接地故障继电器，属于 CDG 系列，广泛用于中低压电力系统的接地保护，用于检测接地故障并触发断路器跳闸。
产品参数
类型：机电式反时限接地故障继电器。
CT 二次电流：5A。
接地故障电流设定：1-4A。
操作时间：3秒。
频率：50Hz。
辅助电压：30-50V DC / 100-125V DC / 220-250V DC。
功耗：3VA。
触点形式：2组常开保持触点。
安装方式：嵌入式安装。
产品特点
采用电磁感应盘式结构，具备反时限特性。
自带电源，由 CT 二次侧供电，无需外部辅助电源。
电流设定值通过插拔式桥接插头在 7 档位中调节。
配备机械式跳闸指示器，动作后显红色，需手动复位。
时间倍率可通过面板旋钮连续调节。
采用防尘抽屉式金属外壳，适用于开关柜面板安装。
可加装瞬时高定单元，实现组合保护。
具备低过冲特性，故障切除后快速复位。
适用于交流电机、变压器、馈线等设备的接地故障保护。
常见于高压开关柜和低压配电柜。
结尾
综上所述，ALSTOM CDG11AF9007ACH 接地故障继电器是一款经典的机电式保护装置，适用于各类电力系统的接地故障保护场景
ALSTOM CDG11AF9007ACH接地故障继电器 英文介绍
ALSTOM CDG11AF9007ACH is a mechanical grounding fault relay belonging to the CDG series, widely used for grounding protection in medium and low voltage power systems, used to detect grounding faults and trigger circuit breaker tripping.
Product Parameters
Type: Electromechanical inverse time grounding fault relay.
CT secondary current: 5A.
Grounding fault current setting: 1-4A.
Operation time: 3 seconds.
Frequency: 50Hz.
Auxiliary voltage: 30-50V DC/100-125V DC/220-250V DC.
Power consumption: 3VA.
Contact form: 2 sets of normally open holding contacts.
Installation method: Embedded installation.
Product Features
Adopting an electromagnetic induction disc structure with inverse time characteristics.
Comes with a built-in power supply, powered by the CT secondary side, without the need for external auxiliary power.
The current setting value is adjusted in gear 7 through plug-in bridge plug.
Equipped with a mechanical trip indicator that displays red after action and requires manual reset.
The time multiplier can be continuously adjusted through the panel knob.
Adopting a dust-proof drawer style metal shell, suitable for installing switch cabinet panels.
Instantaneous high setting unit can be installed to achieve combined protection.
Having low overshoot characteristics, it can quickly reset after fault removal.
Suitable for grounding fault protection of AC motors, transformers, feeders and other equipment.
Commonly found in high-voltage switchgear and low-voltage distribution cabinets.
ending
In summary, the ALSTOM CDG11AF9007ACH ground fault relay is a classic electromechanical protection device suitable for ground fault protection scenarios in various power systems
ALSTOM CDG11AF9007ACH接地故障继电器 产品图片
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