Robust High Voltage/High Power load break bi-directional DC contactor Designed for high voltage Power conversion equipment OEM''s: Photovoltaic/Battery inverters, battery pack designers, DC combiner boxes and other HVDC industrial drive systems Excellent isolation performance: 10kv withstand between open contacts for critical safety applications
DC contactors play a key role in the battery management system. They are used to control the connection and disconnection of the battery pack, to realize the charging and discharging management and protection of the battery, and to ensure the safe operation of the battery pack.
In a battery the contactors are a switch that can be operated by the control system. They are essentially a relay. These contactors are designed to be able to break (switch off) the circuit under full load (maximum current and at maximum system voltage). There are two main types of contactors: Normally Open (NO) and Normally Closed (NC).
When the battery pack contactors are closed onto a motor and inverter there will be an inrush of current into the inverter capacitor. This very high current is at a minimum likely to age the contactors, it could permanently damage the contactors. Therefore, when we closed the contactors on the battery pack we do this in three steps:
For battery EVs, another pair of DC fast charge contactors is inserted to establish a connection between the traction battery and the DC fast-charge equipment. The DC fast charging is essential for long distance driving and large battery EV fleets.
Consider factors such as the rated voltage of the coil drive power supply, the stability of the power supply, and the power supplied to match the coil control requirements of the DC contactor. DC contactors are widely used in electric vehicles such as electric cars, electric bicycles and electric motorcycles.
There are a number of reasons for contactor failure: There are a number of companies that make contactors, some are electro-mechanical, solid state and a mix of both technologies. When the battery pack contactors are closed onto a motor and inverter there will be an inrush of current into the inverter capacitor.
Robust High Voltage/High Power load break bi-directional DC contactor Designed for high voltage Power conversion equipment OEM''s: Photovoltaic/Battery inverters, battery pack designers, DC combiner boxes and other HVDC industrial drive systems Excellent isolation performance: 10kv withstand between open contacts for critical safety applications
For battery EVs, another pair of DC fast charge contactors is inserted to establish a connection between the traction battery and the DC fast-charge equipment. The DC fast charging is essential for long distance driving and large battery EV fleets.
Battery pack management: For battery packs composed of multiple battery cells, DC contactor …
Modern battery packs for high power applications such as battery powered fork lifts and battery energy storage, require robust contactors to maintain safe operation. These packs often use lithium ion or lead acid batteries, which have become …
Sensata''s Robust High Voltage/High Power Load Break Bi-Directional DC Contactor is the ultimate solution for high voltage power conversion equipment OEMs. Designed for photovoltaic/battery inverters, battery pack designers, DC combiner boxes, and HVDC industrial drive systems, our contactor ensures optimal performance and safety.
A NO contactor does not allow current to flow when the actuation circuit is not powered. However, an NC contactor connects the external circuit when the contactor actuation coil is not energized. Therefore, we use EV contactors as NO to switch off the circuit in case of loss of actuation circuit supply. Contactor Structure
DC contactors play a key role in the battery management system. They are used to control the connection and disconnection of the battery pack, to realize the charging and discharging management and protection of the battery, and to ensure the safe operation of the battery pack.
For battery EVs, another pair of DC fast charge contactors is inserted to establish a connection …
Abstract: A Hybrid Circuit Breaker (HCB) solution is proposed to improve the DC fault capability of the DC contactors for Li-ion battery protection in EVs. The common short-circuit protection of EV battery packs is achieved through fuses, while the DC contactors are not supposed to switch any current. However, the intrinsic levitation force of ...
Contactors are the only moving part in a battery pack and although simple there are a number of contactor faults that will stop the operation of the battery pack. The faults are typically: permanently closed; permanently open; overheating; …
Durakool DEVR Series HVDC Contactors are available with bi-directional (non-polarised) contacts which enables them to be used in applications where the onboard batteries can supply current back to the grid via a special charger. Typically, the Durakool DEVR20-5091-S8-0936-R1 is used in such an application, but if higher currents are anticipated ...
Main battery pack 1 to 16 battery modules assembled in series/parallel Main protection (main fuse + DC contactor) Inverter + Motor Aux. protection 500 to 1,000 Vdc Up to 600 A ~30A ~30A ~20A ~125A ~30A 1x (or 2x) or (500V or 1000Vdc) 4x to 8x + 1x 500 →1,000 V Up to 150A for charger(2) 10 →50 A for aux.
pack-fuse Default current DC contactor operation Mersen operation I nominal Typ: 300A I max default 6kA and up I max contactor Typ. 3kA for a few msec. Has to match with fuse MBC value (Minimum Breaking Capacity) EVpack-fuse. 15 Mersen Solutions –EV fuse & pyrofuse –Dec 2020 HYBRID PYRO-FUSE (XP-SERIES) FUNDAMENTALS HOW PYROFUSE ALLOWS BETTER …
In this paper, we perform 3D numerical simulations to under- stand the thermal operation of a high-current-load DC Magnetic Contactor (MC) within a Li-ion battery pack.
Identify the battery system absolute maximum voltage and moving average currents so that the battery system current carry-time curve is below the contactor curve; Analyse the maximum short circuit current if the contactor can withstand; Check the fuse selection so that the contactor can break incomplete short circuits if the fuse cannot
A contactor is a large switch controlled by an electromagnet under software control. It connects the battery pack from connections outside the pack (to the motor inverter, chargers, etc.). There are two contactors in the Model S inside …
Battery pack management: For battery packs composed of multiple battery cells, DC contactor can be used to independently control and manage each battery cell or battery module. By opening and closing the contactor, the charging and discharging of different battery cells can be controlled, and the faulty battery cells can be isolated, thereby ...
Durakool DEVR Series HVDC Contactors are available with bi-directional (non-polarised) contacts which enables them to be used in applications where the onboard batteries can supply current back to the grid via a special charger. …
Bolt that attaches the negative pack contactor to the DC link busbar joint. Nut that attaches the negative pack contactor to HV battery tall silicon terminal . 9 Nm (6.6 lbs-ft) Insulated tools: Ratchet/torque wrench; 6 in extension; 13 mm socket; Electrical Protective Gloves; Paint Pen; Replace: Bolt: 1104475-00-F. Nut: 1104654-00-B. Nuts that attach the negative pack …
The new product of Gigavac, a sub-brand of Sensata Technologies, HX360 1500Vdc, 800A Designed for photovoltaic/battery inverters, battery pack designers, DC combiner boxes, and HVDC industrial drive systems, the HX360 contactor ensures optimal performance and safety. Its excellent isolation performance maximizes safety in critical applications. Mechanically …
DC contactors play a key role in the battery management system. They are used to control the connection and disconnection of the battery pack, to realize the charging and discharging management and protection of the battery, and to …
Contactors are the only moving part in a battery pack and although simple there are a number of contactor faults that will stop the operation of the battery pack. The faults are typically: permanently closed; permanently open; overheating; There are …
Sensata''s Robust High Voltage/High Power Load Break Bi-Directional DC Contactor is the ultimate solution for high voltage power conversion equipment OEMs. Designed for photovoltaic/battery inverters, battery pack designers, DC …
Correction code 16302122 2.28 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so.NOTE: See Flat Rate Times to learn more about FRTs and how they are created.
Designed to IEC specifications, our wide variety of AC and DC contactors in stock range from contactors for low-voltage devices, such as batteries, through to high-voltage power contactors up to 4,800 V and 1,100 A.
Pre-charge contactor DC charge contactors AC charge contactors Auxiliary contactor (e.g. heater) • HEV: 2 main contactors, 1 pre-charge contactor • PHEV: 2 main contactors, 1 pre-charge contactor, 2 AC charging contactors • BEV: 2 main contactors, 1 pre-charge contactor, 2 AC charging contactors, 2 DC fast charging contactors, and 1 auxiliary contactor Typically in …
Stay updated with the latest news and trends in solar energy and storage. Explore our insightful articles to learn more about how solar technology is transforming the world.