SPAD346C  |  SPA-ZC22 | 稳定差动继电器

类别：稳定差动继电器

成色：全新，非全新

保障：一年

工作温度 -20°C to +55°C -20°C to +55°C

工作湿度 5% to 95% RH 5% to 95% RH

外壳材质 PC PC

尺寸 80mm x 80mm x 25mm 80mm x 80mm x 25mm

重量 0.1kg

稳定差动继电器SPAD 346 C设计用于保护双绕组电力变压器和发电机变压器。主要功能包括绕组短路、匝间故障、接地故障和短路保护，以及绕组间短路和极短路保护。此外，该继电器可用于保护三绕组电力变压器，前提是电力变压器的短路电源的75%是从同一方向供应的。

范围

集成三相差动继电器、三相过流继电器和多可配置接地故障保护

产品优势

多功能保护功能

产品特点

SPAD346C集成三相差动继电器、三相过流继电器和多可配置接地故障继电器

为电力变压器和发电机提供保护的三级过流模块和两级备用接地故障保护

SPAD346C在保护区外发生的故障和变压器浪涌时，防止不必要的操作

二次谐波限制，用于防止变压器浪涌时发生的意外继电器操作

第五次谐波限制，用于防止变压器过励磁时发生不必要的继电器操作

SPAD346C宽 CT 比率校正范围 - 通过数字设置实现精确校正

4 个重载输出继电器，用于断路器跳闸，5 个输出继电器，用于信号传输

5 个可编程外部控制输入

集成断路器故障保护，运行时间可调

差分继电器和接地故障继电器模块，具有用于模拟和数字信号的集成干扰记录器功能

灵敏的相电流和相位角显示有助于检查通电电路连接和矢量组匹配

对电气和电磁干扰的高抗扰度使继电器能够在恶劣的环境中使用

由于对硬件和软件的持续监控，实现了高可用性和系统可靠性

Model: SPAD346C

Category: Stable differential relay

Finish: New, not new

Guarantee: One year

Operating temperature -20°C to +55°C -20°C to +55°C

Operating humidity 5% to 95% RH 5% to 95% RH

Shell material PC PC

Dimensions 80mm x 80mm x 25mm 80mm x 80mm x 25mm

Weight 0.1kg

The stable differential relay SPAD 346 C is designed to protect double-winding power transformers and generator transformers. The main functions include winding short circuit, turn fault, ground fault and short circuit protection, as well as winding short circuit and extreme short circuit protection. In addition, the relay can be used to protect a three-winding power transformer, provided that 75% of the short-circuit power supply of the power transformer is supplied from the same direction.

Radius

Integrated three-phase differential relay, three-phase overcurrent relay and multiple configurable ground fault protection

Product advantage

Multifunctional protection function

Product characteristics

The SPAD346C integrates a three-phase differential relay, a three-phase overcurrent relay, and a multi-configurable ground fault relay

Three-stage overcurrent module and two-stage backup ground fault protection for power transformers and generators

The SPAD346C prevents unnecessary operation in the event of failures and transformer surges outside the protected area

Second harmonic limits are used to prevent accidental relay operation that occurs during transformer surges

The fifth harmonic limit is used to prevent unnecessary relay operation when the transformer overexcites

SPAD346C Wide CT ratio correction range - Accurate correction through digital Settings

Four heavy-duty output relays for breaker trip and five output relays for signal transmission

5 programmable external control inputs

Integrated circuit breaker fault protection, adjustable running time

Differential relay and ground fault relay modules with integrated interference recorder function for analog and digital signals

Sensitive phase current and phase Angle displays help check energized circuit connections and vector group matching

High immunity to electrical and electromagnetic interference enables the relay to be used in harsh environments

Thanks to the constant monitoring of hardware and software, high availability and system reliability are achieved