WXD2200 and WXD2100 series protection and control devices are based on years of practical application and operation experience, and have absorbed the existing advanced technology of microcomputer protection devices at home and abroad, and developed a new generation of microcomputer protection measurement and control devices. It is widely used in power, water, petroleum, chemical and other industries 10KV and below voltage level system, as the main protection or backup protection of various electrical equipment.
The WXD2200 and WXD2100 series devices are designed to meet different customer needs. The WXD2200 series combines protection, measurement and control, and communication functions to meet the needs of 10KV substation integrated automation. The WXD2100 series is a simplified version of the WXD2200 series of devices with comprehensive protection functions and weakened measurement and control functions. Both can be installed in a centralized screen or distributed directly on the switchgear. Together with the communication management unit and monitoring system, it can also form a complete plant automation system.
The device is suitable for power plants and substations with voltage levels of 10KV and below. Its functions cover power transformer protection, line protection, capacitor protection, motor protection and so on.
The working power supply of the device is universal, the working voltage range is 95V~260V (AC or DC); the opening circuit uses the DC110V power supply provided by the device itself; the relay outlets are all empty contacts, which can be directly connected to the AC or DC control loop. The WXD2200 Series units are also equipped with a separate anti-jump circuit. The anti-jump circuit is divided into DC220V, DC110V, AC220V and other versions to meet the control power types of various sites.
Therefore, the WXD2200 and WXD2100 series devices are not limited by the operating power supply and control power supply type, and can work reliably under various common power supply conditions.
The device can collect measurement voltage, measurement current, frequency, active power, reactive power and power factor in real time.
The WXD2200 series protection and monitoring device has 13 switching interfaces. The WXD2100 series protection device has 9 switching interfaces. The input power is DC strong DC110V power output from the device itself. It can be used to collect the switch position of the circuit breaker position contact, the knife gate position contact, the protection pressure plate contact, and the external lock contact.
WXD2200 series device can receive remote remote command for opening and closing control of the circuit breaker. The circuit breaker can also be manually opened and closed by the device keyboard menu operation.
The WXD2200 series unit provides an open circuit called “Lock Remote Control”, which can be used to connect the external “remote/local” switch position contact to the remote control. When the switch is in the "local" position, the remote control and remote control closing commands sent by the communication are prohibited. When the switch is in the "remote" position, the remote control and remote control are sent by the communication. Command is allowed to execute。The device is connected to the “local” position contact by default. When the “remote” position contact is actually accessed, the “locked remote control open and reverse” control word in the fixed value item can be input to achieve the same blocking. Features. The modification of the protection value and the retraction of the protection function can be performed remotely from a remote location.
Event reporting function
The device has an event report recording function, which can save the report of the important event generated, and the report is not lost after the device is powered off.
The storage of device events is cyclic, that is, when the latest event report is saved, the oldest event is automatically deleted.
The content of the action event report is the type of protection in which the device generates a protection action, the time at which the protection action occurs, and the amount of failure data at the time of the protection action.
Fault recording function
WXD2200 series device has a fault recording function, which can record and save the fault amount when the system is faulty. The recorded data is 8 cycles of real-time sampling data. The recorded data can be transmitted from the communication interface to the upper computer monitoring system, and the recorded data and waveform can be displayed in the monitoring system software. The device can save the fault recording report of the last 4 times of protection device action, and the recorded data is not lost after the device power is turned off.