drafts:dc_distribution
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drafts:dc_distribution [2018-07-31 00:23] – guystewart | drafts:dc_distribution [2019-10-17 14:11] – [Lynx shunt] guy_stewart | ||
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It consists of the following modules: | It consists of the following modules: | ||
- | * Lynx Power In | + | * [[https:// |
- | * Lynx Shunt | + | * [[https:// |
- | * Lynx Distributor | + | * [[https:// |
+ | |||
+ | You can use the Lynx Distributor or Lynx Power In without the Lynx Shunt. | ||
Information on these 3 parts can be found below, but also in this [[https:// | Information on these 3 parts can be found below, but also in this [[https:// | ||
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{{: | {{: | ||
- | The lynx power in module is used to connect batteries. It contains a negative and positive DC bus-bar with M8 bolts to connect batteries cables | + | The lynx power in module is used to connect batteries. It contains a negative and positive DC bus-bar with M8 bolts in which to connect batteries cables. |
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The Lynx shunt contains a positive bus-bar with space to mount a fuse and a negative bus-bar with a shunt. | The Lynx shunt contains a positive bus-bar with space to mount a fuse and a negative bus-bar with a shunt. | ||
- | It also contains battery | + | It also contains battery |
- | + | ||
- | The Lynx shunt is available in two models: | + | |
- | * VE.CAN | + | |
- | * VE.NET (depreciated) | + | |
+ | The Lynx shunt is available with a VE.Can connection. A previous model had a VE.Net connection and is now discontinued. | ||
==== Fuse ==== | ==== Fuse ==== | ||
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It is important that in cases where batteries are combined, and there is the opportunity for current to flow from one connection to another in fault, that there is sufficient and robust circuit protection. | It is important that in cases where batteries are combined, and there is the opportunity for current to flow from one connection to another in fault, that there is sufficient and robust circuit protection. | ||
+ | |||
+ | For example, the BYD Lithium IP55 cabinets. | ||
In this case the 4 module battery cabinets are each protected by individual 85A circuit breakers and also collectively protected by a 125A circuit breaker at the cabinet end. | In this case the 4 module battery cabinets are each protected by individual 85A circuit breakers and also collectively protected by a 125A circuit breaker at the cabinet end. | ||
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Without the 125A bus bar MEGA fuse. There is the possibility of the battery take off cables fault that the 125A cabinet circuit breaker trips, but that the fault is continued by the supply of the other batteries (up to their combined 375A) and this exceeds the current rating of the cable to the fault and starts a fire. | Without the 125A bus bar MEGA fuse. There is the possibility of the battery take off cables fault that the 125A cabinet circuit breaker trips, but that the fault is continued by the supply of the other batteries (up to their combined 375A) and this exceeds the current rating of the cable to the fault and starts a fire. | ||
- | This is an unlikely scenario, but consequences of a fire in an energy storage situation are so serious that it is the required | + | This is an unlikely scenario, but consequences of a fire in an energy storage situation are so serious that it is a recommended |
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Contains positive and negative bus-bar and provides a connection for for 4 individual DC equipment or load or DC groups. It has a space for a individual DC fuses per DC group and a led for each fuse to indicate if fuse is blown. | Contains positive and negative bus-bar and provides a connection for for 4 individual DC equipment or load or DC groups. It has a space for a individual DC fuses per DC group and a led for each fuse to indicate if fuse is blown. | ||
- | * Green led = fuse is okay | + | * Green led = all 4 fuses are okay |
* Red led = blown fuse | * Red led = blown fuse | ||
==== Fuses ==== | ==== Fuses ==== | ||
- | Uses MEGA fuses. Please note that some MEGA fuses are only rated to 36Volt (suitable for 24V systems), You must use 64V rated fuses for 48V systems. | + | Uses MEGA fuses. Please note that some MEGA fuses are only rated to 36Volt (suitable for 24V systems), You must use 58/64V rated fuses for 48V systems. |
==== Installation ==== | ==== Installation ==== | ||
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[[https:// | [[https:// | ||
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drafts/dc_distribution.txt · Last modified: 2019-10-18 13:14 by guy_stewart