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  • 产品名称: Intelligent electricity consumption
  • 产品编号: e3

 

Intelligent distribution transformer terminal (TTU)

 

TTU (intelligent distribution transformer terminal) is an automatic equipment independently developed by the University of science and technology, which integrates the functions of distribution transformer monitoring, switching value collection, power consumption information monitoring, three-phase imbalance monitoring, environmental state monitoring, data recording and remote transmission, data statistics, timing, safety protection, etc。 It has the characteristics of strong stability, high reliability, good real-time performance and powerful function, and can be widely used in the implementation and transformation of distribution automation of various urban power grids, rural power grids and enterprise power grids。

 

work environment

Normal operating temperature: - 25 ℃ - + 40 ℃

Limit working temperature: - 40 ℃ - + 70 ℃

Altitude: ≤ looom

Pollution level: level IV

Maximum daily temperature difference: 30 ℃

Environmental relative humidity (at 25 ℃): 10% - 100%

Functional features:

The terminal has excellent EMC performance, can resist high voltage spike pulse, strong magnetic field, strong static electricity, lightning surge and other interference, and has a strong temperature adaptive range. The terminal is safe, reliable and easy to maintain, with strong self checking function.

Configuration, expansibility and low power consumption design are adopted. All functional modules can be used immediately, with high reliability, flexibility and easy maintenance.

The terminal can be upgraded in many ways。 It supports USB local and remote communication at the spreading level, and also supports FTP upgrade。

The terminal is specially equipped with an independent power module, which uses three-phase power supply, and can work normally in the absence of two-phase (three-phase four junction mode)。 The super capacitor is used as the backup power supply of the terminal and placed inside the terminal。 When the terminal main power supply fails, the super capacitor can be put into operation automatically, and the terminal shall be kept working for no less than 2 minutes, and have the ability to communicate with the main station for three times to complete the timing report of data。

 

 

 

concentrator

Using GPRS / CDMA or Ethernet to communicate with the master station is a new generation of microcomputer intelligent acquisition terminal which integrates telemetry, remote signaling, reading, statistics and wireless communication functions。 At the same time of centralized meter reading, the monitoring, data statistics and other functions of the distribution transformer in the substation area are completed, and the remote centralized meter reading system of power consumption automation is formed in cooperation with the main station system, which has positive significance for improving the efficiency of centralized meter reading in the residential area and reducing the line loss。

 

Normal working voltage: three-phase four wire: 3 x 220V / 380V three-phase three wire: 3 x 100V

Limit working voltage: ± 20% UN

Power consumption: current ≤ 0。25va (single phase) voltage ≤ 0。5va (single phase)

Frequency: 50Hz, allowable deviation - 6% ~ + 2%.

Output: 2-way pulse output, 1-way second output, 3-way RS485 output

Operating environment: - 40 ℃ - + 70 ℃

Functional features:

It has strong real-time operation and processing ability. It is equipped with non power down ram and high-performance CPU monitoring chip. The device works stably and reliably and does not lose data in case of power failure.

Flexible communication mode: GPRS / CDMA and other wireless network communication modes.

Equipped with independent power supply module, using three-phase power supply, in the absence of two-phase (three-phase four wire mode) can work normally.

It has powerful configuration function, can modify equipment parameters locally / remotely, and support online upgrade of local / remote software.

Rich hardware and software expansion capabilities can meet the requirements of power low-voltage monitoring in the future.

 

 

collector

Kd100c collector terminal is an important part of low-voltage power line carrier centralized meter reading system. The collector can copy and store the data of the electric energy meter, upload the stored data to the concentrator, or directly forward the commands and data between the concentrator and the electric meter.

Rated voltage of working power supply: AC 220V ± 20%

Frequency range: 50Hz ± 6% power consumption: active power under non communication state ≤ 3W apparent power ≤ 5VA

Specification of electricity meter: DL / T 645-1997, DL / T 645-2007

Data transmission interface: 1 maintenance RS485 port (9600bps), 1 Infrared maintenance port (1200BPS), 1 RS485 meter reading interface (2400bps)

Reliability: MTBF ≥ 10 × 104H

External dimension: 160mm (H) × 112mm (W) × 71mm (d)

 

Special transformer type I terminal

The 230MHz radio station is used as the communication channel to collect the electric energy information of the special transformer users, monitor the user's electric load and electric energy, and manage and transmit the collected data. It has the functions of real-time prepayment management, load monitoring, local electricity meter data collection, pulse data collection, etc. Users can obtain real-time power consumption information through the local customer interface of the terminal, and guide users to use electricity reasonably.

 

Normal working voltage: AC220V / 100V

Limit working voltage: ± 20% UN

Power consumption: active power consumption ≤ 7W (non communication) apparent power consumption ≤ 15va (non communication)

Frequency: 50Hz, allowable deviation - 6% ~ + 2%

Input and output circuit: 4 pulse inputs, 4 remote signal inputs, 4 on / off dual position control outputs

Operating environment: - 40 ℃ - + 70 ℃

 

Functional features:

Strong real-time processing ability. It is equipped with non power down ram and high performance DSP monitoring chip.

The terminal has excellent EMC performance and can resist the interference of high voltage spike pulse, strong magnetic field, strong static electricity and lightning surge.

It has powerful configuration function, can modify equipment parameters locally / remotely, and support online upgrade of local / remote software.

 

 

Special transformer type III terminal

It is widely applicable to the implementation and transformation of power automation of various urban power grids, rural power grids and enterprise power grids. The user's power consumption data, parameters and important information and alarm information in the terminal operation can be reported actively or called for testing. At the same time, in the case of insufficient power supply, the load management function of the system can make the power supply unit conveniently control the total power consumption or load of the power consumption unit, thus ensuring the safety of the power grid and the quality of power supply.

 

 

Normal working voltage: three-phase four wire: 3 x 220V / 380V

Limit working voltage: ± 20% UN

Frequency: 50Hz, allowable deviation - 6% ~ + 2%

Input and output interface: 4-way remote control, 6-way remote signal and pulse, 1-way alarm, 1-way door node

Data acquisition: voltage and current: 0.5%; active power: 0.5%; reactive power: 0.5%; active power: 0.5%; reactive power, power factor: 2%

Operating environment: - 40 ℃ - + 70 ℃

Functional features:

Strong real-time processing ability. It is equipped with non power down ram and high performance DSP monitoring chip.

The communication mode is flexible, and the terminal has better expansibility. It can be connected with many different types of modules and supports many wireless network communication modes such as GPRS / CDMA.

The terminal has excellent EMC performance and can resist the interference of high voltage spike pulse, strong magnetic field, strong static electricity and lightning surge.

It has powerful configuration function, can modify equipment parameters locally / remotely, and support online upgrade of local / remote software.

It can realize four kinds of power closed-loop control of fixed value, such as period control, factory off control, business stop control and current power down floating control。

It can realize three kinds of closed-loop control of fixed value of electric energy, such as monthly electric energy control, purchasing electric energy control and urging fee alarm.

It can realize the function of power protection / elimination and the function of remote control trip of the main station.

 

 

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