DELIXI CDMA381 Voltage Transformer Protection and Control

The CDMP381 1.digital multi-functional relay 2.the human-computer interface 3.follows the Q/HZDLX001.

CDMA381 Voltage Transformer Protection and Control

 GENERAL

The CDMP381 is a Switchbay Protection and Control Unit , it features the following functions:

-Protection

-Measurement

-Monitoring

-Control

-Communication

All the above functions listed are integrated in a programmable environment. The exceptional flexibility and scalability of these new generation devices make it possible to integrate all the secondary functions in a unique device, leading to a smart and clean solution where the traditional approach is ineffective and expensive.

The CDMP381(CDMP381)  especially to protect and survey voltage trasformaer . The device can protect and survey two voltage trasformaer, which is the single busbar with multistage connection.

  

Application

-  Voltage Transformer protection & control

Features 

-          Providing easy opportunity for user to program protection and control scheme online by LAdder Diagrams (LAD) which they are familiar with and as defined in IEC1131-3. Thus, according to practical requirements, user can deploy corresponding protections from embedded protection library to reduce spare units.

-        Based on a microprocessor system of 32 bits Digital Signal Processor (DSP), The CDMP381 features advanced core construction, high-speed operation and real-time signal processing capability, overcoming the bottleneck of protection arithmetic for conventional Central Processing Unit (CPU) easily.

-         The CDMP381 has perfect diagnostic function to alarm on unit exception and to protect the unit from permanent damage for incorrect wirings or abnormal running.

-        No need to adjust sampling channels for the design of free-maintenance. Accuracy for measurement would not be influenced by environment temperature or long term running.

-          International popular power-supply module with compatibility of 85~264V AC or DC power supply, especially having wonderful characteristic on power failure and voltage saltation.

-        Hardware self-keeping and interlocking module in Circuit Breaker (CB) operating circuit is designed to prevent the unit from invalidation by any operating current. The CDMP381 is suitable for all kinds of substations with its enhanced function of CB operation management.

-         Supported to trigger alarm or trip by Binary Inputs directly, applying for gas and temperature protection or interlocking trip.

-         Applying settable “Time-Window” technology, the CDMP381 can eliminate accidental signals input and EMC disturbance, ensuring 100% accuracy of binary input signals.

-           User-friendly Human Machine Interface (HMI) with back-illuminated graphic LCD (320x240 pixels). The contrast of the illumination can be fine-tuned as required by user. The LCD display is for plain text and tables, such as measurement values, menus descriptions, protection signals, event recording, Binary Inputs & Outputs (BIO) status, real-time waveform, LAD program, rated values, Single Line Diagram, system parameters, etc.

-        The last 100 pieces of recorded events, with precise time stamp of 1 mil-second,  can be shown on the LCD display of HMI. These events are reserved locally in the unit and mostly related to protection activities, like event description, time stamp and the RMS value of protection pickup, etc, which are primarily necessary for fault analysis and equipment diagnostic.

-         The CDMP381 also consists of a fault recorder module, which can record and encode analog and binary data pre- & post fault time, up to 100 cycles with 24 sample points per cycle. All recorded data is reserved in the unit locally and permanently.

-           The CDMP381 has multi-set of protection setpoints and can be switched automatically according to running manners or manually by user, which is especially suitable for power substation of Duty-Free or systems that running manner is frequently changed.

-        Embedded protection library of more than twenty types to satisfy diverse requirements for distribution lines and primary equipments.

-      Relevant protection can be arranged respectively to realize acting according to actual circumstances.

-        For special protection function, which is not provided in standard protection library, it can be achieved through Self-Defined function to fulfill user’s requirements.

-        Implement of dynamic ON/OFF & binary output re-directing by LAD programming allows the post-action of all binary outputs to be configured as tripping, alarmed/tripped signals or others as required, which improves the agility of protection application.

DELIXI CDMA381 Voltage Transformer Protection and Control