The exploration and research of intelligent power distribution system scheme provides customers with a comprehensive presentation of intelligent power distribution system, integration in intelligent power distribution system, perception in intelligent system, introduction of intelligent power distribution products, etc.

1. Intelligent power distribution system

1.1. Pain points of customers:

Manpower is required for energy consumption meter reading, fault inspection, on-site commissioning, frequent maintenance, etc., with high cost and low efficiency

1.2. Function overview of intelligent power distribution system:

Station management: multi project centralized control, convenient for headquarters control; Information summary and overall mastery; Hierarchical management;

Energy efficiency management: implement energy consumption and dynamic display; Energy efficiency comparison and energy saving suggestions; Power quality, professional analysis;

Intelligent power distribution: component status, one key query; Protection parameters, remote configuration; Remote operation, unattended;

Fault management: fault early warning and prevention; Real time alarm and accurate positioning; Health prediction and fault avoidance;

Intelligent operation and maintenance: intelligent patrol inspection and fault introduction; Graded maintenance and intelligent scheduling; Difficult problems, online diagnosis;

2. Integration in intelligent power distribution system

2.1. System integration:

The integration of energy management platform, power distribution management platform and equipment operation and maintenance platform has become Nader intelligent power distribution management system, and cloud analysis and remote management have been upgraded;

2.2. Integration of intelligent low-voltage distribution station area and circuit breaker:

By means of wireless + HPLC communication, plug and play, high precision, high temperature and humidity, RFID + topology chip, the terminal, frame circuit breaker, molded case circuit breaker, multi-core smart meter, smart micro terminal and Bluetooth micro switch are integrated, with the advantages of low total cost, high reliability and convenient maintenance

3. Perception in intelligent system

3.1. Sensing technology:

Signal parameters: current sensor, manganese copper shunt, leakage sensor

Environmental parameters: odor sensor, temperature sensor

Physical parameters: vibration sensor, noise sensor, release accessories, energy storage mechanism, remote reset, etc

Other types of sensors: humidity sensor, dust sensor, temperature sensor, water immersion sensor, smoke sensor, multi-function meter;

3.2. Health management:

Operation times: live operation times health assessment
Life health: switch aging life health assessment
Contact wear: contact wear health
Temperature and humidity health: evaluation of equipment temperature and humidity health
Equipment health assessment: equipment sub-health alarm, accurately screen the causes of problems, equipment health fault alarm, give recovery suggestions and prompt timely maintenance or replacement;

3.3. Establish fault mechanism model and life prediction:

Combined with the electrical principle, product characteristics, after-sales data and laboratory tests, build a data analysis model, and predict the service life according to the standard failure acceleration factor, failure time and equipment operation time under different conditions

4. Introduction of intelligent power distribution products

4.1. System software:

Based on SaaS & PAAS architecture, it is convenient to use multiple platforms, devices and modes;

4.2. Intelligent complete set:

Sensing equipment (intelligent frame circuit breaker, intelligent dual power transfer switch, intelligent terminal power distribution), intelligent switch cabinet, management terminal and expansion equipment;

4.3. Overview of access elements:

Circuit breaker: Nader ndw3, ndw2, ndw1a, ndm5e, ndm3e, ndm2e
Terminal power distribution: ndb5e, E1
Dual power supply: ndq5w, ndq5, ndq3h, ndq3
Accessories: df-xs display unit, df-tm gateway module, df-sc66di / do module, df-wk6 temperature module;

4.4. Internet of things molded case circuit breaker:

Ndm3e-w series, fully sensing current, voltage, power, electric energy, state position, operation times, service life, health and temperature; The accuracy of measuring current and voltage reaches 0.5s; Self diagnosis, equipment management and status analysis; Internally integrated topology identification and information collection function; Communication modularization, plug and play; Protection, measurement and control integration;

4.5. IOT frame circuit breaker:

Comprehensively sense current, voltage, power, electric energy, state position, operation times, service life, health and temperature; The accuracy of measuring current and voltage reaches ± 0.5; Self diagnosis, equipment management and status analysis; Internally integrated topology identification and information collection function; Communication modularization, plug and play; Protection, measurement and control integration;

4.6. Dual power transfer switch:

Interconnection: WiFi wireless and RS485 wired modes are provided; It supports near-field NFC and can read event information even after power failure; Support remote four remotes;

Excellent performance: special PC level integrated design, reliable guarantee; Ac-33a short-time withstand current (ICW) is up to 100kA;

Multiple monitoring: monitoring voltage, frequency and phase angle to ensure continuous power supply; Overtemperature alarm technology, which can monitor the body temperature online; Built in automatic test function for easy maintenance

Widely applicable: neutral line overlap protection function to ensure the safety of electronic loads; The EMC test is far higher than the national standard and the same industry standard; The performance index of electrostatic discharge immunity is 2 times better than the national standard;

4.7. Intelligent switch cabinet:

Intelligent breakthrough: the intelligent system meets the needs of power distribution management; Equipped with station control monitoring unit, local intelligent management drawer cabinet and display unit;

Complete scheme: switch cabinet PC, feeder cabinet PCC; Motor control cabinet MCC, dual power control cabinet; Reactive power compensation cabinet and active filter cabinet (SVG);

Industry leading: the skeleton adopts industry 6-fold profile; The bus system is modular and flexible; Multiple mechanical and electrical interlocks and protection levels;

Scene design: multi color selection, wide range of application; Double sided cabinet saves the space of power distribution place; Independent intelligent cell design