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S-PRO 4000 Sub-Harmonic Protection Relay
S-PRO 4000次谐波保护继电器

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The S-PRO sub-harmonic protection relay protects various power system equipment including generators, wind turbines, PV system, series compensated transmission lines, FACTS devices and power transformers from uncontrollable sub-synchronous oscillation conditions known as:sub-synchronous torsional interaction (SSTI)sub-synchronous control interaction (SSCI)sub-harmonic resonance (SSR)sub-harmonic…

TESLA 4000 Power System Recorder with CDR, PMU and IEC 61850 station bus protocol (Model 4000)

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TESLA 4000 is an easy-to-use and cost effective, state-of-the-art, multi-time frame (simultaneous) digital fault recorder. Its integrated Phasor Measurement Unit (PMU) functionality streams synchrophasor data for wide area monitoring. Enabled with IEC 61850 protocol, TESLA has advanced communication capabilities that,…

Coated Cutting Tools — More Performance, Longer Life
涂层刀具——性能更佳,寿命更长

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Why Are So Many CNC Tools Gold, Black, Blue, or Purple? 为什么这么多数控刀具是金色、黑色、蓝色或紫色的? The colour isn’t just about appearance.Modern cutting-tool coatings can improve:🔹 Wear resistance🔹 Heat resistance🔹 Cutting performance🔹 Tool life🔹 ProductivityCommon coating families include TiN, TiCN, TiAlN/AlTiN, and other advanced…