Abstract
A device has three single-pole modules and a chassis that can be connected to a busbar distribution system. The chassis has three input connections and three output connections, wherein each single-pole module has single-pole means for protecting against short-circuits and overloads and single-pole means for interrupting and establishing current, and wherein the input connections and output connections and the single-pole modules form three independent single-phase circuits.
Claims
1. A busbar adapter comprising: three single-pole modules and a chassis connectable to a distribution busbar system, said chassis comprising three input connections and three of output connections, wherein each single-pole module comprises single-pole means for protection against short circuits and overloads and single-pole means for interrupting and establishing the current, and wherein the input connections and output connections and the single-pole modules form three independent single-phase circuits.
2. The busbar adapter according to claim 1, wherein the three input connections are located in a rear of the adapter in a vertical distribution.
3. The busbar adapter according to claim 1, wherein the three output connections are arranged in a lower part of the chassis with respect to the distribution busbar system.
4. The busbar adapter according to claim 1, wherein the three single-pole modules comprise means for the manual interruption and establishment of the current or means for the remote interruption and establishment of the current.
5. The busbar adapter according to claim 4, further comprising mechanical means mechanically secured to the means for manually interrupting and establishing current which allow the simultaneous activation of said means in the three single-pole modules.
6. The busbar adapter according to claim 1, wherein the three single-pole modules comprise fuses.
7. The busbar adapter according to claim 6, comprising: one or more indicators of the state of the fuses; or openings for checking voltage values in posts of the fuses.
8. The busbar adapter according to claim 1, wherein the three output connections comprise two output conductors arranged in a plane and a third output conductor arranged at a predetermined spacing from said plane.
9. The busbar adapter according to claim 1, further comprising current sensors arranged at the output connections or at the input connections or in the single-pole modules.
10. The busbar adapter according to claim 1, further comprising mechanical means for isolating the output connections.
11. The busbar adapter according to claim 1, further comprising openings which allow access for tightening the input connections.
12. The busbar adapter according to claim 1, further comprising rotational means.
13. The busbar adapter according to claim 1, further comprising communication means between the three single-pole modules which allow single-pole disconnection of the three modules in response to the single-pole disconnection of at least one single-pole module.
14. The busbar adapter according to claim 1, further comprising a removable casing housing the single-pole modules.
15. The busbar adapter according to claim 14, wherein the casing comprises one or more removable parts housing the single-pole modules.
16. The busbar adapter according to claim 1, further comprising electronics or software for obtaining electrical measurements associated with said adapter, for identifying a short circuit or overload and for actuating the adapter remotely and locally and in an automatically and assisted manner.
Description
DESCRIPTION OF THE DRAWINGS
[0050] To complement the description that is being made and for the purpose of helping to better understand the features of the invention according to a preferred practical embodiment thereof, a set of drawings is attached as an integral part of said description in which the following has been depicted with an illustrative and non-limiting character:
[0051] FIG. 1A shows a front view of an automatic switch for controlling and interrupting current according to the present invention connected to a busbar system.
[0052] FIG. 1B shows a rear view of the automatic switch according to the present invention.
[0053] FIG. 1C shows the output connections of the automatic switch according to the present invention.
[0054] FIG. 2 shows the rear part of the automatic switch including input connections for the connection to the busbars and a front part of the automatic switch for three phases.
[0055] FIGS. 3A and 3B show views of the automatic switch comprising the front part separated from the rear part comprising the downward and upward output connections, respectively.
[0056] FIGS. 4, 4B, and 4C show the modular three-phase version of the device, formed by three separable one-pole modules according to the present invention.
[0057] FIGS. 5A, 5B, and 5C show single-line diagrams of single-phase circuits of the automatic switch.
PREFERRED EMBODIMENT OF THE INVENTION
[0058] FIG. 1A shows a front view of a busbar adapter (100) with automatic switches according to the present invention connected to a three-phase busbar system (110). The busbar adapter (100) comprises a rear part or chassis (102) and a front part or protective case (101) housing single-pole modules comprising automatic interruption means for protecting against an overload and short-circuits (504) for each of the phases. Additionally, the modules may comprise for the three independent phases of a three-phase system, means for manually and/or remotely interrupting and establishing current (501a, 501b,) as can be observed in FIG. 5B, fuses (502) as can be observed in FIGS. 5B and 5C, and current sensors (503a), (503b). The busbar adapter (100) comprises a modular design formed by single-pole modules. Therefore, in the event that the switch has to be replaced due to deterioration thereof, the assembly is formed by independent one-pole elements which allow replacing the pole that is damaged and not the entire assembly.
[0059] The busbar adapter (100) is designed for controlling each of the phases of the three-phase busbar (110). The chassis (102) comprises three input connections (102a, 102b, 102c) connectable to said busbar system (110) as can be observed in FIG. 1B, and an assembly of output connections (104a, 104b, 104c) as can be observed in FIG. 1C. The input connections (102a, 102b, 102c) and output connections (104a, 104b, 104c) together with the means for protecting against an overload and short-circuits (504) form three independent single-phase circuits (505a, 505b, 505c) which are shown in FIGS. 5A to 5C. In other embodiments, the number of input connections and output connections may vary.
[0060] An x-axis running parallel to the ground, from left to right in reference to the observer, and a y-axis perpendicular to the x-axis, and defining the depth of the system, are defined. Moreover, a z-axis is defined perpendicular to the other two and defines the height of the assembly. The input connections (102a, 102b, 102c) are distributed such that they form a line along the z-axis, as can be observed in FIG. 1B.
[0061] Each of the independent single-phase circuits (505a, 505b, 505c) comprises single-pole means for protecting against an overload and short-circuits (504) as shown in FIGS. 5A to 5C. Additionally, the independent single-phase circuits (505a, 505b, 505c) may comprise fuses (502) as shown in FIGS. 5B and 5C, means for manually and remotely interrupting and establishing current (501a, 501b) also shown in FIGS. 5B and 5C, and current sensors shown in FIG. 5C. The means for interrupting and establishing current (501a, 501b) can be interchangeably operated by manual operation or by remote operation, respectively, due to a short-circuit or overload or due to the express desire of the operator, and therefore allow a single-pole disconnection of the current, i.e., they allow interrupting the current of each of the phases separately.
[0062] FIG. 1B shows a rear view of the busbar adapter (100) according to the present invention. The chassis (102) and three input connections (102a, 102b, 102c) and the output connections (104a, 104b, 104c) can be seen. FIG. 1C shows the output connections (104a, 104b, 104c) of the busbar adapter (100) according to the present invention. The output connections (104a, 104b, 104c) comprise two output conductors (104a, 104b) arranged in one plane and a third output conductor (104c) arranged at a predetermined spacing from said plane, as can be seen in FIG. 1C.
[0063] FIG. 2 shows the chassis (102) for the connection of the busbars to the busbar adapter (100) and for the three phases of the three-phase system. The manual actuating elements of a manual switch (501a) for interrupting and establishing current shown in FIGS. 5B and 5C can also be seen.
[0064] FIGS. 3A and 3B show the reversibility functionality of the busbar adapter (100) according to the present invention as a result of rotational means which allow the output connections (104a, 104b, 104c) to move 180 degrees, as can be observed in FIGS. 3A and 3B. The chassis (102) comprises output connections (104a, 104b, 104c) in a lower position with respect to the busbar (110) (FIG. 3A) and in an upper position with respect to said busbar (110) (FIG. 3B). Therefore, in FIG. 3A the output connections (104a, 104b, 104c) are located in the lower part of the chassis (102). In FIG. 3B, the output connections (104a, 104b, 104c) are located in the upper part of the chassis (102).
[0065] FIGS. 4A to 4C show the modular version of the busbar adapter (100), formed by three single-pole modules contained in the three cases or casings (101a, 101b, 101c) and the chassis (102). Each single-pole module forms an independent single-phase circuit (505a, 505b, 505), as shown in FIGS. 5A to 5C. Therefore, each module corresponds to a phase of a three-phase system of the busbar system (110). The installation of the modules on the chassis (102) of the busbar adapter (100) can be seen in FIG. 4B, completing the single-phase circuits (505a, 505b, 505) comprising the three input connections (102a, 102b, 102c) and the output connections (104a, 104b, 104c), and the elements of said modules such as the single-pole means for protecting against an overload and short-circuits (504), and additionally, switches (501a, 501b), fuses (502), and current sensors (503a, 503b).
[0066] FIGS. 5A, 5B, and 5C show three independent single-phase circuits (505a, 505b, 505) of the busbar adapter (100). FIG. 5C shows optional current sensors (503a) for the input connections (102a, 102b, 102c) and (503b) and current sensors (503b) for the output connections (104a, 104b, 104c), which allow monitoring the current value in said connections. The current value can be important for monitoring power and controlling same, and it will also allow, in the case of the switches (501a, 501b) being tripped, analyzing the current values prior to said tripping and being able to discern if the tripping was caused by a short-circuit or by an overload.
[0067] In FIG. 5A, the first single-phase circuit (505a) housed in the case (101a) is formed by the input connection (102a) and the output connection (104a) and means for protecting against an overload and short-circuits (504) which activate the busbar adapter (100) for a given phase, interrupting the current of said phase.
[0068] The second single-phase circuit (505b) comprises the input connection (102b), the output connection (104b), and means for protecting against an overload and short-circuits (504) which activate the busbar adapter (100) for a second phase, interrupting the current of said second phase. The third single-phase circuit comprises features similar to the single-phase circuits (505a), (505b) and allows interrupting the current of a third phase.
[0069] FIG. 5B shows another preferred embodiment of the single-line diagram of the three independent single-phase circuits (505a, 505b, 505) which additionally include fuses (502) and switches (501a, 501b). Therefore, the first single-phase circuit (505a) associated with the case (101a) of the busbar adapter (100) is formed by the input connection (102a), the output connection (104a), the means for protecting against an overload and short-circuits (504), a manual switch (501a), and a fuse (502). The manual switch (501a) is equipped with a control as can be seen in FIG. 1A and can interrupt or establish current in the event of a manual action by a user.
[0070] The second single-phase circuit (505b) comprises the input connection (102b), the output connection (104b), the means for protecting against an overload and short-circuits (504), a fuse (502), and a remote activation switch (501b). The remote activation switch (501b) of the busbar adapter (100) comprises a digital signal input which allows remote activation for controlling the current.
[0071] The third single-phase circuit (505c) comprises features similar to the single-phase circuits (505a), (505b) of FIG. 5B.
[0072] FIG. 5C shows another preferred embodiment of the single-line diagram of the three independent single-phase circuits (505a, 505b, 505) which additionally include fuses (502) and current sensors (503a) for the input connections (102a, 102b, 102c) and (503b) and/or current sensors (503b) for the output connections (104a, 104b, 104c), and which allow monitoring the value of the current in said connections. The data provided by the current sensors (503a), (503b) will be used for monitoring the operation of the adapter (100).
