Differences

This shows you the differences between two versions of the page.

--- dc_distribution [2019-10-18 13:13] – created from drafts:dc_distribution guy_stewart
+++ dc_distribution [2019-10-19 12:42] – [Lynx Power in] guy_stewart
@@ Line 17: / Line 17: @@
 ===== Lynx Power in =====
-{{:drafts:lynx_power_in.png?200|}}
+{{:drafts:lynx_power_in.png?200|}}{{https://www.victronenergy.com/upload/products/cat-122015Lynx%20power%20in%20(top_open).png?200}}
-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.
+The lynx power in module is used to connect batteries via an external fuse. It can be useful if you have multiple parallel strings. Due the extremely high short circuit current potential of most battery banks, it is suggested to use an external fuse system with an appropriate fault current interruption rating (such as an NH HRC).
+The Power In contains a negative and positive DC bus-bar with M8 bolts in which to connect batteries cables. It can take cables up to 22 mm in diameter though the bottom entry guides, and no limit via the two side connections.
 ===== Lynx shunt =====
-{{:drafts:lynx_shunt.png?200|}}
+{{:drafts:lynx_shunt.png?200|}}{{https://www.victronenergy.com/upload/products/cat-100122Lynx%20Shunt%20VE.Can%20VE.NET%20inside.png?200}}
 The Lynx shunt contains a positive bus-bar with space to mount a CNN fuse and a negative bus-bar with a shunt.
@@ Line 29: / Line 29: @@
 The Lynx shunt is available with a VE.Can connection. A previous model had a VE.Net connection and is now discontinued.
 ==== Fuse ====
@@ Line 56: / Line 55: @@
+===== Lynx Distributor =====
-==== Why Fuse the Bus? ====
+{{:drafts:lynx_distributor.png?200|}}{{https://www.victronenergy.com/upload/products/cat-120236Lynx%20distributor%20(top_open).png?200}}
-Batteries are special.
+Contains a positive and negative bus-bar and provides a connection for 4 individual DC equipment circuits, loads or DC groups. It has a space for individual DC fuses per DC group.
-They are both a source and destination of energy.
-Power can flow from them to a load (or a fault).
+There is an optional feature of an LED for each fuse to indicate if fuse is blown.
-It can also flow to them from a charge source (eg other batteries or solar).
-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.
+If you wish to use the fuse indication LEDs on the Lynx Distributor, it also requires a connection to a Lynx Shunt. The Lynx Shunt contains the necessary wide input (8 to 70VDC) power supply to output the required 5V (4,5V-5,5V) power requirement of the Lynx Distributor circuit board.
-For example, the BYD Lithium IP55 cabinets.
+RJ11 fly leads are used to connect the Lynx Shunt to the Distributor. This RJ11 cable is supplied with the Distributor in the box. There are two ports on the Lynx Shunt, and it is possible to use either.
-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.
+When all is OK, only the central led is green; when a fuse has blown (or is missing) the central and blow fuse circuit LEDs turn red. If you are not using all connection points in your DC distribution, it may be necessary to fit dummy fuses to extinguish the red LEDs.
-These cabinets are then connected through the Lynx Distributor, and those main battery take off wires are connected at the Bus end by another 125A MEGA fuse.
-Both the 125A circuit breaker and the 125A fuse are as close as possible to their respective sources of current. The battery cells, where the internal wire is protected inside the cabinet. And the shared bus bar (where current can flow from other batteries or a charge source).
-This means that if there is a short circuit fault somewhere along the battery cabinet take off cable, there is sufficient protection.
-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 a recommended level of protection.
+A future upgrade is planned to also send info back to the GX device over the VE-can, but is not yet implemented.
-===== Lynx Distributor =====
-{{:drafts:lynx_distributor.png?200|}}
-Contains positive and negative bus-bar and provides a connection for 4 individual DC equipment circuits, loads or DC groups. It has a space for a individual DC fuses per DC group and an LED for each fuse to indicate if fuse is blown.
-  * Green led = all 4 fuses are okay
-  * Red led = blown fuse
 ==== Fuses ====
@@ Line 113: / Line 94: @@
 A - In the future, the read out of fuses, but this is not supported yet.
+==== Why Fuse the Bus? ====
+Batteries are special.
+They are both a source and destination of energy.
+Power can flow from them to a load (or a fault).
+It can also flow to them from a charge source (eg other batteries or solar).
+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.
+These cabinets are then connected through the Lynx Distributor, and those main battery take off wires are connected at the Bus end by another 125A MEGA fuse.
+Both the 125A circuit breaker and the 125A fuse are as close as possible to their respective sources of current. The battery cells, where the internal wire is protected inside the cabinet. And the shared bus bar (where current can flow from other batteries or a charge source).
+This means that if there is a short circuit fault somewhere along the battery cabinet take off cable, there is sufficient protection.
+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 a recommended level of protection.
@@ Line 119: / Line 125: @@
 Here are some images from customer's installations that may help you to understand the installation of the Lynx System.
-**[[https://www.victronenergy.com/markets/marine/discovery-yachts|Discovery Yachts]]**
+**[[https://community.victronenergy.com/answers/11189/view.html|Mark on Victron Community]]**
-https://www.victronenergy.com/upload/images/Li-Ion-installation_plan.jpg
+{{https://community.victronenergy.com/storage/temp/1767-a996bb86-3038-45d6-af29-18f3203964d2.jpeg?200}}
+{{https://community.victronenergy.com/storage/temp/1724-22e2f379-b55a-42d3-b5e5-4c80084f1cc4.jpeg?200}}
+{{https://community.victronenergy.com/storage/temp/1768-867d17a0-7a49-495f-b9ab-3d19ca52410e.jpeg?200}}
+**[[https://www.victronenergy.com/markets/marine/discovery-yachts|Discovery Yachts]]**
-https://www.victronenergy.com/upload/case-details/122309_Karibu-energy-system.png
+{{https://www.victronenergy.com/upload/images/Li-Ion-installation_plan.jpg?200}}{{https://www.victronenergy.com/upload/case-details/122309_Karibu-energy-system.png?200}}
 **[[http://https://www.victronenergy.com/blog/2015/01/16/hybrid-back-up-system-in-belgium-2-2/|Ysebaert's Hybrid Back-up System in Belgium]]**
-https://www.victronenergy.com/blog/wp-content/uploads/sites/10/2016/01/DSC00107-730x548.jpg
+{{https://www.victronenergy.com/blog/wp-content/uploads/sites/10/2016/01/DSC00107-730x548.jpg?200}}
@@ Line 133: / Line 145: @@
 **
-[[https://static1.squarespace.com/static/562bc73de4b0908330f67ee0/t/59d3f48fe9bfdf11a11df040/1507062949908/Redwood-+38RL-Victron.jpg|Closeup Photo of Lynx]]
+{{https://static1.squarespace.com/static/562bc73de4b0908330f67ee0/t/59d3f48fe9bfdf11a11df040/1507062949908/Redwood-+38RL-Victron.jpg?200}}