Catenary hung on the support pillars on the device, so that the contact line in the case of not increasing pillar suspension point increase

By hanging strings hanging in on catenary. Catenary hung on the support pillars on the device, so that the contact line in the case of not increasing pillar increased suspension point, by adjusting the dropper length so that the contact line in the entire span of the track surface within a distance consistent. electric meter the contact line sag in the middle of the span, improved flexibility, increased unsprung weight, improved stability, high speed electric locomotives to meet the requirements to take flow. mcb circuit breaker have been better than a simple performance, but it also brings structural complexity, high cost, construction and maintenance tasks large and many other issues. Catenary classification more, according to the number of how many hanging chain can be divided into single-stranded form, double-stranded form and multi-chain-shaped (also known as the three chain-shaped). China's current single catenary. Catenary anchor according to clues way (that leads the way at both ends to anchor) can be divided into the following ways uncompensated catenary, semi-tensioned catenary, fully compensated catenary.