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Digital secondary deep fusion ring cage

The digital primary and secondary deep fusion ring cage is a primary and secondary deep fusion ring cage produced by hezong technology co., ltd. which integrates intelligence, digital networking and realizes miniaturization of appearance. The intelligent one or two fusion complete sets of equipment make the protection, control, monitoring and measurement of the whole transmission and distribution system centralized, realize the automation of the distribution network, lay the foundation for the wide area monitoring and diagnosis system, and ensure the safe, reliable and economic operation of the power system. The digital one-two deep fusion ring cage scheme is suitable for industrial and mining enterprises, intelligent energy fields, airports, railways and other places with high communication demand.
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Product Parameters

Performance characteristics

The digital secondary deep fusion ring net cage has all the functions of the standardized customized scheme. In order to better adapt to the on-site environment and serve users, the following characteristics are added:

1. Miniaturization

The digital primary and secondary deep fusion ring net cage further compresses the size of each part of the interval, saves the installation space of voltage transformer cabinet and centralized DTU, truly realizes the miniaturization of complete sets of electrical equipment, and increases the adaptability to the placement space of various transformation environments on site.

2. Digitalization, networking and intelligence

The traditional centralized DTU is changed to an embedded decentralized DTU device. The traditional equipment is upgraded with information technology, and the embedded intelligent control unit integrated with industrial automation technology is modified with additional components to improve the electrical performance of the switchgear, and is assisted by an electronic voltage transformer. The primary and secondary integrated ring network cabinets further enhance the intelligence, networking and digitization, and realize the intelligence of power grid operation under the "Internet" mode.

 

Technical parameters

Name

Parameters

Load switch cabinet

Combined electrical cabinet

Circuit breaker cabinet

Ring cage body

Rated voltage

12kV

Rated frequency

50Hz

Rated current

630A

125A

630A

Rated transfer current

-

1500A

-

Rated short-time withstand current

Main circuit

20kA/4s

-

20kA/4s

Earthing switch

20kA/4s

-

20kA/4s

Rated short-circuit closing current

Main circuit

50kA

80kA

50kA

Earthing switch

50kA

80KA

50kA

Mechanical life

Main switch

5000 times (SF6)/10000 times (vacuum)

10000 times

Earthing switch

3000 times

3000 times

Protection level

Gas chamber

IP67

Cabinet

IP4X

Shell

IP44

Distribution terminal DTU

Nominal value of voltage input

AC 100V or AC 220V optional

Nominal value of current input

AC 1A or AC 5A optional

Working power supply

DC screen in the station

DC220V/DC110V, single channel

No DC screen in the station

AC220V/DC220V, dual

Measurement and control capacity

(1) Capacity configuration: 4~16 circuit;

(2) Telemetry: fully equipped with 8 voltages and 48 currents;

(3) Remote mail: 120;

Remote control: fully equipped with 16 circuits (2 for each circuit: opening and closing).

Voltage measurement accuracy

0.5 level

Current measurement accuracy

The phase measurement value is 0.5 grade (≤ 1.2In), and the phase protection value is ≤ 3%(≤ 10In).

Remote communication resolution

≤ 2ms

Software anti-jitter time

2~60000ms can be set

punctuality accuracy

Every 24 hours error 2s

Connection mode of DTU

Terminal block/aviation connector

Average trouble-free working time

≥ 50000

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