Relay protection of 20kV and above voltage levels and related equipment, networks, etc. shall be configured according to the principle of dualization. The relay protection of dual configuration shall comply with the following requirements:
(1) Each complete, independent protective device shall be capable of handling all types of faults that may occur. There should be no electrical connection between the two sets of protection and should not affect the operation of the other set of protection when it is abnormal or withdrawn.
(2) The two sets of protected voltage (current) sampling values ​​shall be taken separately from the merging units that are independent of each other.
(3) The binning unit shall be corresponding to two independent subsampling systems of electronic transformers .
(4) The GOOSE (SV) network used for protection of dual configuration should follow the principle of independence. When a network is abnormal or exits, the GOOSE network should not affect the operation of another network.
(5) The two sets of protection trip circuits should correspond to two intelligent terminals respectively; two intelligent terminals should correspond to the two trip coils of the circuit breaker respectively.
(6) Dual line protection should be configured with two sets of single-arm communication equipment (including multiplexed fiber channel, independent core, microwave, carrier and other channels and processing equipment, etc.), the two sets of communication equipment should be used separately power supply.
(7) The two sets of DC power supplies for protection and related equipment (electronic transformers, merging units, smart terminals, network equipment, trip coils, etc.) shall be one-to-one correspondence.
(8) protection of dual configuration should use the main, after the integration of protective devices.
Terry Towel Warp Knitting Machine
Terry Towel Warp Knitting Machine is a highly-speed warp knitting machine, which running speed could up to 1,300RPM. Thanks to advanced technology and carbon fiber material widely used, warp knitting terry towel machine becomes more stable and higher productive compared with other terry machines.
A-ZEN TS4-C terry towel warp knitting machines, which also be called KS4FBZ, is equipped with Germany Needles, Carbon-fiber Needle bed and bars, laser-stops device as well as other market-tested spare parts, because of which A-ZEN terry towel machines gain a market acceptance since last 4 years.
Piles of warp knitting terry could reach to 6mm while back side of terry could be 3-4mm. The weight of warp knitting terry usually from 200-400gsm. Microfiber Polyester, Polyamaid and cotton yarn are available in warp knitting terry machine.
Technical Data:
Working Width/Gauge: 186"/ E24;
Working Speed: 50-1300rpm (Depends on yarn and designs);
Pattern Drive System: Pattern Disc or EL Drive (Optional);
Yarn Let-off Device: Electronical Yarn Let-off System;
Fabric Take-up: Electronical Fabric Take-up System;
Batching Device: Electronical Batching Device;
Laser Stops Detector;
Individual Terry Pile Brushing Device;
Online Service Supported.
Details please check machine leaflet.
Terry Towel Warp knitting machine,Terry machine,Microfiber towel machine
CHANGZHOU A-ZEN TEXTILE TECHNOLOGY CO.,LTD , https://www.tricotmachinery.com