Integrated Network Transformer Protector Enclosure
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Solution Overview
Problem
Conventional network systems comprising separate network transformers and protectors occupy more space due to bolted connections, increasing the dimension of the vault and complicating maintenance, while also exposing personnel to energized bus work and reducing safety and reliability.
Innovation Solution
Integration of a network transformer and protector into a single unit with a compartmentalized enclosure design, where the circuit breaker is draw-out and the bus work is encapsulated, reducing potential failure zones and providing safe user access by isolating the control panel and circuit breaker from the energized components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network transformer and protector are installed as separate components with bolted connections, then the system provides modular flexibility, but the vault dimension increases and maintenance becomes complicated
Solution Approach 1:
The patent combines the network transformer and network protector into a single integrated unit with a unified enclosure, eliminating the need for separate bolted connections between components. This merging reduces the overall vault footprint while maintaining the functional independence and modular flexibility of both components through internal integration.
2Ease of operation
If circuit breaker and control panel are accessible for maintenance, then ease of operation is improved, but personnel are exposed to energized bus work reducing safety
Solution Approach 1:
The patent divides the enclosure into multiple compartments, with the circuit breaker and control panel housed in a first compartment and the energized bus work and transformer in a second compartment. This segmentation allows maintenance personnel to access and service the circuit breaker and control panel through a door in the first compartment without exposing them to the energized components in the second compartment, thus maintaining ease of operation while enhancing safety.
3Adaptability or versatility
If separate network protector and transformer are used, then component independence is maintained, but the number of potential failure zones increases
Solution Approach 1:
By integrating the network protector and transformer into a single unit with shared enclosure and compartmentalization, the patent reduces the number of external connection points and potential failure zones associated with separate installations. The component independence is preserved through internal compartmentalization that maintains functional separation while eliminating external connection vulnerabilities.
Data Source
AI summary
A network unit includes an enclosure having first and second compartments, plural input terminals, and a primary switch having an input and an output, the input being electrically connected to the input terminals. The output of the primary switch is electrically connected to the input of a network transformer. A network protector includes an input, an output and a circuit breaker electrically connected between the input and the output of the network protector. The network protector input is electrically connected to the network transformer output. Plural circuit protection devices are electrically connected between the network protector output and plural output terminals. The circuit breaker is substantially enclosed by the second compartment. The network transformer, the primary switch and part of the network protector are enclosed by the first compartment.