This recommended practice establishes a testing method for determining energy efficiency of a motor drive system operating at varying load conditions. It covers motor drives with rated system voltage up to 690 Vac (line-to-line rms) or 1100 Vdc. The test methodology covers both single motor, single drive systems, as well as multiple drives fed from a common AC to DC rectifier or a DC source. The test methodology covers all three-phase and multi-phase AC motors operated on variable speed drives… read more and does not place restrictions on the type of variable speed drive used in the system under test. Single phase input fed three-phase motor drive systems are also covered in this recommended practice. read less

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This guide specifies the test requirements of system commissioning which are applicable to the DC (direct current) distribution network of the voltage level from 750 V to ±50 kV. The guide mainly includes the following aspects: the converter (AC (alternating current)/DC, DC/DC) test; the DC circuit breaker test; the test of active and passive network conversion; the test of the operation characteristics of low voltage DC islanded operation system; the test of feeder power balance system; the… read more coordinated operation test of medium and low voltage DC system; the plug and play system test; the small power system test; the large power system test; the rated load test; the overload test; the short circuit test; and the trial operation. read less

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This standard specifies automotive electronics product inspection equipment, focusing on its structure, detection precision, functions of visual detection, functions of signal detection, functions of the software, data transfers, data storage, and the technique for detecting whether the equipment meets requirements. It specifies the technical indicators closely related to automotive electronics product inspection equipment, which are critical for equipment production and application and is… read more conducive to improving production efficiency and product quality. read less

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This standard specifies the general requirements of visual inspection of surface mount devices (SMD) for surface mount technology (SMT) machines, including the format of chip parameters data exchange, the function and technical requirements of each module of the visual inspection algorithm, and the storage structure of chip parameters. This standard specifies unified data format and interfaces of the algorithms between different SMT machines.

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This standard describes the system structure, basic functions, performance requirements, reliability, availability, maintainability and safety (RAMS) requirements, test rules, and test methods of a short primary maglev vehicle electric traction system.

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This guide provides principles, techniques and data for the engineering design, installation, commissioning, monitoring and testing as well as control and mitigation methods for stray currents associated with DC Rail Transit Systems. The principles associated with this guide are applicable to both transit and non-transit structures alike and should take into account any structure that can be impacted by the generation of DC stray current.

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This guide describes methods of corrosion inspection and evaluation of High Voltage Direct Current (HVDC) grounding electrodes, including general requirements, selection of excavation point, excavation, sampling, corrosion inspection, and evaluation. This guide is applicable to corrosion inspection and evaluation of HVDC grounding electrode after excavation with voltage ratings from ±400 kV to ±1100 kV.

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This standard specifies a consensus framework for a blockchain system to help enable that the state data of the blockchain is consistent in the distributed network environment. It includes the conditions that a consensus mechanism should satisfy and corresponding definitions, the protocol standards to be followed, and different environment models that give a significant impact on the design of consensus mechanisms. Furthermore, it also describes types of mainstream consensus mechanisms and various application scenarios.

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This recommended practice provides data communication techniques, artificial intelligence methods, and integration planning strategies for the information exchange, energy storage, and economical operation of electric vehicles for grid integration. The concept of hierarchical and integrated organizational structure is defined, and the economic models of electric vehicles for grid integration are established with incentive strategies. This recommended practice is suitable for managing and… read more controlling vehicle-grid integration systems with safe and economical operation. read less

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This standard defines a set of tools for efficient compression of geometry point clouds and the corresponding definitions of syntax, semantics, parsing and decoding processes, such as prediction, transform, quantization, and entropy coding.

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The standard specifies a type of compilation interface and its intermediate representation used for deep learning model computation tasks. This standard applies to deep learning computation diagram representation and optimization.

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This guide applies to electric vehicle supply equipment (EVSE) with a rated supply voltage up to 1000 V alternating current (AC) or up to 1500 V direct current (DC) and a rated output voltage up to 1500 V DC. This guide specifies a method of condition evaluation of EVSE, including the classification, general requirements, and method of evaluating the EVSE condition.

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This standard provides a framework for formulating and evaluating how well the behavior of autonomous driving agents aligns with human intentions. This framework specifies evaluation setups and related data, methods, and metrics. The standard defines a minimum set of scenarios, in which human intentions are encoded through agent behaviors. In each scenario, the standard defines a set of behaviors, where different behaviors reflect different levels of alignment between human expectations and… read more agent behaviors. For instance, in a scenario, we might have three behaviors, A, B, and C, where A is the most expected behavior aligned with human intentions, B is not an expected behavior but acceptable, and C is not an acceptable behavior. Based on that, the minimum requirements for alignments and system interpretability are provided from an evaluation process perspective. This standard applies to autonomous agents on the road, which are implemented by Artificial Intelligence (AI) algorithms, machine learning, or other applicable methods. Complying with this standard helps to achieve that the fundamental performance of self-driving vehicles aligns with human intentions. read less

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This standard addresses unique identification numbers for electric grid assets including generation, transmission, substation, distribution, storage, and electric vehicle charging stations. The unique identifiers include a universal catalog identifier, manufacturer identifier, and traceability identifier.

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This standard specifies construction principles, reference frameworks, and basic functional requirements of smart reservation system for free-of-charge museums. The standard applies to the design, development, and integration of such systems.

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