Radisys EXM4控制器

产品详细资料
设置如果已启用，则从电压输入测量电力系统频率。如果没有电压输入，则通过绕组1相A的电流信号进行测量。这些测试要求无电压输入的继电器使用变频电流源，有电压输入的中继器使用变频电压和电流源。连接如下图所示。仅执行特定于继电器型号的测试。注：低频、过频和频率衰减元件均由可选的可调小电流和小电压电平检测器进行监督。在启用电压输入的745上测试这些元件的性能时，如果启用了电流监控，则可能需要向绕组1相a注入电流信号，否则检测器将不工作。低频1作为初步步骤，禁用除低频1以外的所有保护功能。验证设置是否符合在用要求。在S4 ELEMENTS中输入或修改设置 频率 UNDERFREQUENCY 1设置菜单。电压输入功能（启用电压输入）： 使用连接到电压信号端子C11和C12以及电流信号端子H1和G1的变频电压/电流源，将频率设置为60.00 Hz（或50 Hz系统为50.00 Hz），并将电压幅度设置为额定VT二次电压。 将电流幅度设置为额定CT次级。 监测适当的跳闸和辅助继电器。 重置继电器上的所有警报和指示。继电器显示应保持无跳闸指示。 缓慢降低频率，直到输出继电器工作。 检查操作是否在选定的频率设置下进行。 随着频率的变化，验证A2 METERING（A2计量）是否显示了正确的系统频率 频率 SYSTEM FREQUENCY（系统频率）实际值。 缓慢降低电压，并记下输出继电器复位时的电压。 检查该压降是否接近S4元件中的电压监控值 频率 低频率1 小工作电压设定值
Setup The power system frequency is measured from the voltage input if it has been enabled. If there is no voltage input, it is measured from the winding 1 phase A current signal. These tests require a variable-frequency current source for relays without a voltage input and a variable-frequency voltage and current source for relays with a voltage input. Connections are shown in the figure below. Only perform tests specific to the relay model. Note The underfrequency, overfrequency, and frequency decay elements are all supervised by optional adjustable minimum current and minimum voltage level detectors. When testing the performance of these elements on a 745 with the voltage input enabled, it may be necessary to inject a current signal into winding 1 phase A if the current supervision is enabled, or else the detectors will not operate.Underfrequency 1 As a preliminary step, disable all protection functions except underfrequency 1. Verify that settings match the in-service requirements. Settings are entered or modified in the S4 ELEMENTS  FREQUENCY  UNDERFREQUENCY 1 settings menu. Voltage input function (voltage input enabled):  Using the variable-frequency voltage/current source connected to terminals C11 and C12 for the voltage signal and H1 and G1 for the current signal, set the frequency to 60.00 Hz (or 50.00 Hz for 50 Hz systems) and the voltage amplitude to the rated VT secondary voltage.  Set the current amplitude to rated CT secondary.  Monitor the appropriate trip and auxiliary relays.  Reset all alarms and indications on the relay. The relay display should remain with no trip indications.  Slowly decrease the frequency until the output relay(s) operate.  Check that the operation took place at the selected frequency setting.  As the frequency is varies, verify that the correct system frequency is displayed by the A2 METERING  FREQUENCY  SYSTEM FREQUENCY actual value.  Slowly reduce the voltage and note the voltage at which the output relay(s) reset.  Check that this dropout voltage is approximately the voltage supervision value in the S4 ELEMENTS  FREQUENCY  UNDERFREQUENCY 1  MINIMUM OPERATING VOLTAGE setpoint
主营产品简介
专注于DCS、PLC、机器人控制系统、大型伺服四大系统领域。

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●使用前:

在操作和维护，安装设备之前，请阅读并严格遵守安全相关的信息。

Read and strictly follow safety-related information before operatingmaintainingand installing equipment.

●使用者要求:

必须从事安装，组装或维护设备等相关工控电气机械以及其他相关技术的人员。

Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:

应用于品牌本系列工业以及生产生活自动化设备产品。

Used in the brand of this series of industriaand production automation eauipment products

适用于场景:系统集成，非标定制，产线升级改造，原设备电气替换等等。

Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.

●操作人员:

应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强，熟悉安全信息和安全实施:

熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。

Equipment should be installed,operated and maintained by trained operators from the brand

●危险情况

警告

.请注意使用人员的人身安全。

●除了产品特性以及功能，还需了解产品的使用寿命环境。

●充分学习产品使用手册，否则非专业人员可能会造成人身危险。

Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.

●服务行业

适用水泥，木业，石业，橡胶，石油，化工，发电，环保，水处理，制冷，交通，钢铁，食品，饮料，船舶，制冷等行业

Applicable to cementwood,stone,rubber,petroleumchemical, power generation