Yokogawa’s WT1500 power analyzer measures up to 2,000 V DC without high-voltage dividers

Yokogawa Test & Measurement has released the WT1500, a four-channel power analyzer that measures up to 2,000 V DC directly, eliminating the need for the high-voltage dividers that test setups normally need to reach those levels. The instrument extends the company’s WT series into high-voltage testing for electrified vehicles, energy storage and renewable power conversion, and it fits in a 2U, 19-inch chassis built for rack-mounted and PC-controlled benches.

High-voltage systems in electrified vehicle and renewable applications can run into the thousands of volts, so test setups often add external dividers to scale the signal down before it reaches the analyzer. Those dividers can introduce measurement error and complicate the wiring. Yokogawa designed the WT1500 to read up to 2,000 V without them, covering power conversion systems (PCS) and energy storage systems (ESS) directly.

The analyzer has a total power accuracy of ±0.038% at DC and 50/60 Hz and a low-power-factor accuracy of ±0.07% of apparent power at 50/60 Hz, which Yokogawa says are the best DC figures in the WT series. It takes two types of input element. The High Voltage (HV) element measures up to 2,000 V DC and 300 kHz for PCS and ESS work, and the Wide Bandwidth (WB) element handles up to 1,000 V at 2 MHz for the high-frequency waveforms of modern EV motors. Both share a common sensor input and can be mixed in a single unit.

The WT1500 supports four power measurements and four motor evaluations, including both encoder and resolver signal inputs. The resolver support lets engineers run motor evaluation tests without extra equipment. Conventional motor efficiency measurements otherwise synchronize separately measured power and resolver signals on a PC. The analyzer also offers IEEE 1588 time synchronization, data output to CAN and CAN-FD buses and transmission over UDP, and it can be controlled remotely from a PC, external monitor or tablet.

For work that needs more than four channels, up to five WT1500 units can be synchronized for 20-channel power measurement, and one unit acts as the main controller. Yokogawa says multi-unit synchronization will be added in a later release.

Four current input terminals supply power to current sensors and work with a set of new current adapters offered as accessories: the CT Series solid-core adapter (60 A to 2,000 A, AC/DC), the CT1000S split-core adapter (1,000 A, AC/DC) and AC-only current clamp probes in 50 A and 200 A classes.

Source: Yokogawa Test & Measurement

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Generational and Maverick Diagnostics to bring EV battery health testing to UK car repair shops

Generational, a UK-based specialist in EV battery condition diagnostics, has partnered with Maverick Diagnostics to make EV battery health testing available to thousands of automotive workshops across the UK.

Under the agreement, Generational will distribute its testing kits, fulfil workshop orders and provide the software platform that powers its battery health checks, State of Health reporting and customer-facing certificates. Maverick Diagnostics will market the technology and provide educational insights for workshops.

Maverick Diagnostics serves around 6,000 auto repair shops across the UK, giving independent repairers a straightforward route to add EV battery testing to their customer offering.

As the number of used EVs on the road grows, battery condition is an important consideration for consumers, retailers and repair shops. While real-world data shows that EV batteries are performing strongly overall, the health of individual batteries can vary depending on age, charging behavior, usage profile and maintenance history.

Generational and Maverick Diagnostics are encouraging EV owners to include a battery condition check as part of annual vehicle maintenance.

“Battery health should not be something consumers only discover when they are buying a car, selling a car or when something goes wrong,” said Oliver Phillpott, CEO of Generational. “It should become a familiar part of EV ownership, in the same way motorists understand the importance of service history, mileage verification or [a Ministry of Transport inspection]. Maverick Diagnostics is one of the most trusted names amongst UK workshops, and this partnership enables us to put Generational’s technology into the hands of the repairers motorists already rely on.”

Generational’s testing process is designed to be fast and simple for workshop staff to use. A compact device connects to the vehicle’s OBD port, enabling the software to assess key battery condition data and produce a report that can be shared with the customer.

Generational’s recent Battery Performance Index, based on more than 8,000 EV battery assessments across the UK, found that average battery State of Health stands at 95.15%. However, the Index also found that variation between vehicles increases with age—reinforcing the importance of testing on a case-by-case basis.

“Workshops are being asked to service increasingly sophisticated vehicles, and EV battery condition is one of the biggest questions their customers have. Garages need tools that are accurate, easy to use and commercially practical, and motorists need information they can understand and trust,” said Andy Brooke, CEO of Maverick Diagnostics.

Source: Generational

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Coulomb Solutions’ mobile battery storage systems qualify for California CORE vouchers

Coulomb Solutions (CSI) has won California Air Resources Board (CARB) approval for three more of its mobile battery energy storage systems under the Clean Off-Road Equipment (CORE) Voucher Program. CORE offsets the upfront cost of commercially available zero-emission off-road equipment through a point-of-sale discount.

The three systems are rated at 233 kWh, 466 kWh and 699 kWh, and all are 480 V AC mobile power units built around lithium iron phosphate (LFP) cells. Voucher amounts run to $93,000 for the eBESS233-233-01, $185,000 for the eBESS466-466-01 and $280,000 for the eBESS699-540-01. CSI says buyers may receive up to $400 per kWh. Its previously approved 2.3 MWh unit, the eBESS2.3-1.0-01, qualifies for the program’s maximum incentive of $300,000.

CSI sources its LFP batteries from CATL. The company says the packs are vehicle-rated and designed for daily transport. Each unit is a stand-alone, self-contained system that can remain on its trailer or be deployed at a temporary site and relocated later. Onboard telematics collect and transmit location, cumulative operating hours, total energy used in kWh and average energy discharge rate. The systems use integrated thermal management, and CSI says they are designed to meet UL 9540 requirements and comply with NFPA 855.

Because a mobile BESS recharges slowly from an existing grid connection and discharges at higher power on demand, it can enable the deployment of DC fast charging without a service upgrade, and it can cap the peak demand metered by the utility.

CSI says the units are intended for operations that lack EV charging infrastructure, including port cargo-handling , airport ground support equipment, construction and industrial warehouses. They can also smooth grid load and reduce demand charges at high-EV-use locations, supply temporary power at concerts and sporting events, and replace diesel generators for emergency backup during disaster relief. CSI says the units can charge commercial EVs as well as off-road, industrial, construction, rail and marine equipment.

“CSI’s Green Energy ToGo Mobile BESS solutions give fleet operators a practical, scalable way to meet immediate DC fast charging needs in high-EV-use areas and support temporary charging along key transportation corridors where fast charging infrastructure remains limited,” said David Mazaika, CEO of Coulomb Solutions.

Source: Coulomb Solutions

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Flash Battery partners with Swedish integrator ETP to electrify industrial machines

Italian battery maker Flash Battery has formed a partnership with ETP, a Swedish system integrator that develops electrified systems for industrial and marine applications. The agreement is aimed at OEMs in the Nordic countries, and the two companies say it will let them engineer lithium batteries, power electronics and software as one integrated system.

ETP is part of the Volito Industry Group and develops electric drivetrains, power electronics, hydraulics and mechatronics for OEMs building agricultural machinery, material handling equipment, construction equipment and off-highway and marine vehicles. Flash Battery has designed custom lithium battery systems for industrial machinery and electric vehicles since 2012, and manages production in-house at its headquarters in Sant’Ilario d’Enza, Italy.

Flash Battery says this is not a traditional distribution agreement but a technical and application support structure, intended to guide Northern European OEMs from system architecture definition through to complete integration, and from prototype development to serial production.

Flash Battery’s proprietary BMS, the Flash Balancing System, maintains cell balancing and uses impedance spectroscopy to monitor cell health and detect degradation. Battery data feeds the Flash Data Center, the company’s cloud monitoring platform, which Flash Battery says applies machine learning to installations worldwide for self-diagnostics and predictive maintenance.

ETP joins a European network of system integration partners that Flash Battery has built across Europe, after Atech in Germany, Q-Tronic in the Netherlands and Paul Forrer in Switzerland.

“Through their modular battery platform, Flash Battery can develop everything from small to large battery systems while maintaining the same integration approach regardless of battery size,” said Christer Sigurd, CEO of ETP.

Source: Flash Battery

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Autel offers a new cable protection program for public EV chargers

Reliability and uptime are the talk of the EV charging industry these days, and rightly so. Charger manufacturer Autel tells us that one of the most common causes of downtime is damage to a charging cable or connector. Whether the damage results from vandalism, accidental vehicle contact, everyday wear, severe weather, or another unforeseen event, an inoperable cable can leave a charger unavailable when customers need it.

Autel’s Cable Protection Program is a new commercial service offering designed to minimize downtime by simplifying the replacement of damaged charging cable assemblies and connectors. The program provides OEM replacement components regardless of the cause of damage.

Coverage is available for eligible Autel chargers enrolled prior to deployment, or while they are still covered under the Autel Limited Product Warranty.

For customers seeking a higher level of operational support, the Cable Protection Plus option includes OEM replacement parts along with installation performed by either Autel Energy North America or an Authorized Autel Service Partner.

Source: Autel

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AMADA WELD TECH adds motorized focus to its SIGMA LS femtosecond laser subsystem

AMADA WELD TECH has updated its SIGMA LS Laser Micromachining Subsystem with a motorized beam delivery head and a choice of vertical or horizontal mounting orientations. The company says the changes are aimed at machine builders and system integrators fitting femtosecond laser micromachining into production lines and dedicated work cells.

The optional motorized focusing feature positions the focal point under software control, rather than requiring a manual adjustment. This allows the system to handle multi-level feature geometries, varying material thicknesses and recipe-based process changes, and the company says it increases throughput and reduces setup time.

Vertical and horizontal formats can be specified to match process flows and machine designs. The subsystem can be mounted above or beside fixtures and processing zones, or integrated into larger systems, enclosures and automated production lines. The company says the formats suit both new machine builds and retrofits that add femtosecond capability to an existing platform.

Femtosecond pulses deposit energy faster than heat can conduct into the surrounding material, so little heat spreads beyond the ablated area. That matters on brittle or heat-sensitive parts, as thermal damage from longer-pulse lasers can distort geometry or crack the material. Shorter wavelengths also focus to smaller spot sizes, so the wavelength choice sets the finest feature the system can produce.

SIGMA LS comes as a single package containing the femtosecond laser, beam delivery optics, a scan head or cutting head, focus lens, camera, controller and software. Laser power options run from 5 W to 80 W, and users can specify IR, green or UV wavelengths. The subsystem performs precision milling, selective ablation, drilling, surface texturing and scribing.

Source: AMADA WELD TECH

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Wisconsin-based carrier is the latest to begin a Tesla Semi pilot

It’s been a long road for the Tesla Semi. The company unveiled its electric Class 8 truck in 2017, and it finally went into volume production in April of this year. Now, however, things are starting to happen. Several fleets have the Semi in commercial operation, several are running pilots, and several more have placed orders.

The latest Semi sighting comes from Wisconsin-based carrier Paper Transport (PTI), which has begun a pilot of the Tesla Semi Long Range in the Chicago market. PTI is testing the truck within its “dedicated operating model, where predictable routes and consistent mileage provide an ideal environment for assessing battery-electric performance.”

“Our partnership with Tesla expands our portfolio alongside renewable natural gas and intermodal, giving customers more ways to reduce Scope 3 emissions without compromising service or economics,” said PTI CEO Tyler Ellison.

Bryan Ellen, PTI’s VP of Maintenance, said his company is “bullish in our estimation of the parallels available between our dedicated model and the efficiency of [Tesla’s] fully electric Class 8 tractor.”

Tesla is producing the Semi at a dedicated 1.7-million-square-foot building next to its Nevada Gigafactory. The facility reportedly has a capacity of 50,000 trucks per year.

The Semi is available in two trims: the Standard Range model has a range of 325 miles and the Long Range version boasts 500 miles. Both use three 800 kW electric motors with a total output of 1,072 hp, and support charging at up to 1.2 MW.

Tesla’s quoted prices—$260,000 for the Standard Range and $290,000 for the Long Range—are far lower than those offered by legacy truckmakers. In the latest round of California’s Clean Truck & Bus Voucher program, the Tesla Semi received 90% of the applications for Class 8 tractors (965 of 1,067), while Daimler, PACCAR (Peterbilt and Kenworth) and Volvo combined received fewer than 100 applications.

PepsiCo, the Semi’s first customer, is now running some 100 trucks from depots in Modesto, Sacramento and Fresno. Trucking-as-a-Service (TaaS) provider WattEV has ordered 370 units, and expects the first 50 trucks to enter service this year. Less-than-truckload carrier ArcBest has added two Semis to its fleet following a 2025 pilot. Tesla has reportedly booked reservations from Walmart, Sysco, Anheuser-Busch, UPS, DHL and J.B. Hunt.

Sources: Clean Trucking, Electrek

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