搜尋結果
每個總開關或斷路器的過流保護繼電器設定,必須以不低於附錄1圖示的“客戶低壓側過流保護繼電器的最大時間 / 電流特性曲線”的速度運作。 本公司建議客戶的總開關或斷路器,可考慮使用可調式操作特性並符合機電工程署認可標準的過流繼電器。 可調式操作特性指在無需更換繼電器的情況下,可通過調整繼電器設定而改變其操作特性。 保護用途電流互感器(CT)的要求. 過流及接地故障保護用途的電流互感器(CT )須為15 伏安(VA) 及10P20級別,並符合以下電流互感器比率(CTR)。 保護用電流互感器的輸出電壓須足夠使繼電器運作 ; 其值為>16 x Is(Zct + Zlead + Zo / c + Ze / f)
Guide to Supply and Metering Arrangement on Customer’s Internal Distribution System. 1. Acceptance of Customer’s Schematic Wiring Diagram. This Guide shall be read in conjunction with the attached wiring diagram / drawing(s) returned herewith to the Developer / Customer.
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Electrical contractors. Learn your responsibilities and download key documents such as our Supply Rules and meter installation guide. Your responsibilities. As a Registered Electrical Contractor, you are responsible for: Observing our Supply Rules; Referencing the relevant key documents; Attending electrical installation inspections; and.
This Code of Practice provides the details of the general principles to be applied to the design of distribution substations, including substations located at ground floor, basement, upper floor level including at high level in high rise building and outdoor areas.
This document sets out the requirements for the location, accommodation and operation of FiT Meters and electricity revenue meters for the purposes of the FiT Scheme. 1.2.
7.1 Illumination inside the substation should be average 160 lux measured on the floor for general areas and minimum average 400 lux on the vertical surface of the meters and switches.
As your trusted energy provider, you may approach us for one-stop technical support and power supply solutions for your electric vehicle chargers. As our customer, you may install electric vehicle (EV) charging facilities in residential buildings and commercial carparks.
