US 11,683,878 B2
Fracturing well site system
Kaishen Liu, Yantai (CN); Shouzhe Li, Yantai (CN); and Zhuqing Mao, Yantai (CN)
Assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Yantai (CN)
Filed by YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD., Yantai (CN)
Filed on Jul. 20, 2022, as Appl. No. 17/869,336.
Application 17/869,336 is a continuation of application No. 17/325,955, filed on May 20, 2021.
Claims priority of application No. 202120706298.3 (CN), filed on Apr. 7, 2021.
Prior Publication US 2022/0353980 A1, Nov. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H05F 3/02 (2006.01); E21B 43/26 (2006.01); H02G 13/00 (2006.01)
CPC H05F 3/02 (2013.01) [E21B 43/2607 (2020.05); H02G 13/40 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A fracturing system, comprising an electrical apparatus, an electric-power supply apparatus, and a grounding system, wherein:
the grounding system comprises a first grounding metal wire, and a first grounding terminal spaced from each of the electrical apparatus and the electric-power supply apparatus;
at least one of the electrical apparatus and the electric-power supply apparatus is connected to the first grounding metal wire and connected to the first grounding terminal through the first grounding metal wire;
the first grounding terminal is configured to ground at least one of the electrical apparatus and the electric-power supply apparatus;
the electric-power supply apparatus comprises an electric-power supply device, an electric-power converter device electrically connected with the electric-power supply device, and an electric-power distribution device electrically connected with the electric-power converter device;
the grounding system further comprises a third grounding metal wire;
at least one of the electric-power supply device, the electric-power converter device, and the electric-power distribution device is connected to the third grounding metal wire and is connected to the first grounding terminal through the third grounding metal wire;
the third grounding metal wire is configured to surround at least one of the electric-power supply device, the electric-power converter device, and the electric-power distribution device; and
the third grounding metal wire is a closed wire loop.