# How is power distributed from 11kV to 415V in a Typical Industrial Substation? **URL:** \ **Category:** Electrical\ **Tags:** line\ **Created:** [November 15, 2025, 2:59am UTC](https://forumautomation.com/t/how-is-power-distributed-from-11kv-to-415v-in-a-typical-industrial-substation/13714 "2025-11-15T02:59:20Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Rabert](https://forumautomation.com/user_avatar/forumautomation.com/rabert/32/6784_2.png) [@Rabert](https://forumautomation.com/u/Rabert)\ **Post date:** [November 15, 2025, 2:59am UTC](https://forumautomation.com/t/how-is-power-distributed-from-11kv-to-415v-in-a-typical-industrial-substation/13714/1 "2025-11-15T02:59:21Z")
## How is power distributed from 11kV to 415V in a Typical Industrial Substation? A power distribution system SLD for an 11kV to 415V substation illustrates the entire flow of electrical power: from the 11kV incoming supply through HT protective devices to the 3500 kVA OLTC transformer & finally into the LT distribution network. The illustration below demonstrates a typical industrial substation configuration intended for safe, dependable and efficient power transmission. ![1](https://cdn.forumautomation.com/original/2X/2/2f501990680ca0b4548ac3f96b2874be93411d1d.jpeg) This schematic has all essential components including - VCB protection, - CT/PT metering, - IDMT relays, - LT ACB incomer, - Bus coupler interlocking - PFI compensation system for power factor management. ## Important Features of SLD 11kV HT panel with VCB & numerical protection relays 3500 kVA ONAN oil-filled transformer with OLTC 5000A LT ACB The main incomer uses CT-based metering while the bus coupler has mechanical/electrical interlocking for safety. A 2100 kVAR PFI (Power Factor Improvement) plant is used for reactive power control. This SLD was designed to assure effective protection coordination, system reliability & high efficiency in medium-to-large industrial power systems. > ### You can also follow us on [[color=#ff7700] **AutomationForum.co** [/color]](https://automationforum.co/), [url= [https://www.facebook.com/instrumentation.control](https://www.facebook.com/instrumentation.control)][color=#1E00A3] **Facebook** [/color][/url] and [url= [https://www.linkedin.com/showcase/81532759/feed/posts/](https://www.linkedin.com/showcase/81532759/feed/posts/)][color=#1E00A3] **Linkedin** [/color][/url] to receive daily Instrumentation updates. > ### You can also follow us on [[color=#ff7700] **ForumElectrical.com** [/color]](https://forumelectrical.com/), [[color=#1E00A3] **Facebook** [/color]](https://www.facebook.com/profile.php?id=100091841583670) and [[color=#1E00A3] **Linkedin** [/color]](https://www.linkedin.com/showcase/91130242/feed/posts/) to receive daily Electrical updates.