[email protected]

phase to earth voltage

2 Min Read
A dragline excavator represents one of the largest continuous-duty electrical machines on Earth. Modern draglines (typical bucket capacity 100–150 cubic meters) routinely excavate 100,000+ tons of overburden daily from coal and metallic mines. A single large dragline requires continuous electrical power input of 5–10 megawatts to operate the bucket hoist mechanism, drag mechanism, swing drive, and positioning systems. This extraordinary power demand requires high-voltage transmission (typically 11kV or higher) to minimize resistive losses and keep conductor sizes manageable. 拉铲挖掘机代表地球上最大的连续负荷电机之一。现代拉铲(典型斗容量100-150立方米)经常从煤炭和金属矿山每天挖掘100,000多吨覆盖层。单个大型拉铲需要连续电力输入5-10兆瓦来操作斗提升机构、拖拽机构、摇摆驱动和定位系统。这种非凡的功率需求需要高压传输(通常11kV或更高)以最小化电阻损耗并保持导体大小可管理。
Technical Department
on05/03/2026

High-Voltage Draglines: Specifications for (N)TSCGEWÖU 3×185+3×35/3 11/11kV Australian Specs

A dragline excavator represents one of the largest continuous-duty electrical machines on Earth. Modern draglines (typical bucket capacity 100–150 cubic meters) routinely excavate 100,000+ tons of overburden daily from coal and metallic mines. A single large dragline requires continuous electrical power input of 5–10 megawatts to operate the bucket hoist mechanism, drag mechanism, swing drive, and positioning systems. This extraordinary power demand requires high-voltage transmission (typically 11kV or higher) to minimize resistive losses and keep conductor sizes manageable. 拉铲挖掘机代表地球上最大的连续负荷电机之一。现代拉铲(典型斗容量100-150立方米)经常从煤炭和金属矿山每天挖掘100,000多吨覆盖层。单个大型拉铲需要连续电力输入5-10兆瓦来操作斗提升机构、拖拽机构、摇摆驱动和定位系统。这种非凡的功率需求需要高压传输(通常11kV或更高)以最小化电阻损耗并保持导体大小可管理。
8 Min Read
When specifying medium-voltage mining cables for international projects, engineers frequently encounter seemingly incompatible voltage ratings between European VDE standards and Commonwealth AS/NZS standards. A common point of confusion arises when comparing the 3.6/6kV rating found in DIN VDE 0250-813 flexible mining cables with the 3.3/3.3kV rating specified for AS/NZS 2802 Type 441 cables used extensively in Australian, New Zealand, and South African mining operations. 在为国际项目指定中压矿用电缆时，工程师经常遇到欧洲VDE标准与英联邦AS/NZS标准之间看似不兼容的电压等级。一个常见的困惑点是比较DIN VDE 0250-813柔性矿用电缆中的3.6/6kV额定电压与澳大利亚、新西兰和南非采矿作业广泛使用的AS/NZS 2802 Type 441电缆规定的3.3/3.3kV额定电压。
Technical Department
on23/01/2026

Voltage Rating Comparison: How Does the 3.6/6kV Rating in VDE 0250 Standards Compare to the 3.3/3.3kV Rating Used for Type 441 Cables in Commonwealth Mining?

When specifying medium-voltage mining cables for international projects, engineers frequently encounter seemingly incompatible voltage ratings between European VDE standards and Commonwealth AS/NZS standards. A common point of confusion arises when comparing the 3.6/6kV rating found in DIN VDE 0250-813 flexible mining cables with the 3.3/3.3kV rating specified for AS/NZS 2802 Type 441 cables used extensively in Australian, New Zealand, and South African mining operations. 在为国际项目指定中压矿用电缆时，工程师经常遇到欧洲VDE标准与英联邦AS/NZS标准之间看似不兼容的电压等级。一个常见的困惑点是比较DIN VDE 0250-813柔性矿用电缆中的3.6/6kV额定电压与澳大利亚、新西兰和南非采矿作业广泛使用的AS/NZS 2802 Type 441电缆规定的3.3/3.3kV额定电压。