交流真空断路器ZW14-12KV
用途
ZW14-12型户外真空断路器，系三相交流50Hz、额定电压12kV的户外装置，用于分合各种不同性质的负载电流，过载电流及短路电流，适用于频繁操作的场合，特别适用于城乡电网的建设和改造。
结构及特点
该断路器总体结构为三相共箱式，主要由操动机构、导电回路、绝缘系统、密封件及箱体组成。导电回路由进出线导电杆、动静端导电板、导电夹、软连接后再与真空天强室连接而成。外绝缘主要是通过高压绝缘套管来实现的，具有抗污秽能力，内绝缘主要通过增加真空管、拉杆和绝缘套爬电距离及相间加绝缘隔架来实现空气绝缘。
断路器是由弹簧操动机构操纵的，机构或分闸弹簧带动断路器的三相主轴转动，同时拉动绝缘操作杆和拐臂，使真空灭弧室的动静触头断开或闭合，从而使断路器实现分闸或合闸操作。
Product Overview
The current DR-2 has an improved machined black Delrin body, which enhances the impact resistance of the assembled instrument.
A sintered Ag/AgCl reference electrode provides very accurate potential data to monitor polarization of the structure. A heavy-duty zinc electrode element serves as a long-term, ultra-reliable, low-resolution electrode.
The dual-element (Ag/AgCl sw / Zinc) reference electrode is designed for weld-on, bolt-on or clamp-on attachment to an offshore structure.
Designed for permanent monitoring of cathodic protection systems, the electrode has a 20-year design life. Added to the back of the instrument is a 10 square foot current density monitoring array, such that polarization data may be logged directly from the instrument.
Available remote control monitoring systems are standard on new structures. Polatrak systems give you the option to tie into communication lines, providing remote cathodic protection monitoring over existing infrastructure.
Applications
Offshore platform jackets & drill rigs.
Seawater ballast tanks on SPAR, TLP, and FSU /
FPSO structures.
SPAR center well area.
Inshore structures, piers, jetties, wharve.
Subsea equipment wired to SunStation™ permanent readout.
As impressed current CP controller.
The DR-2 dual reference cell is equipped with one Ag/AgCl and one Zn reference electrode for unparalleled accuracy.
DR-2 Dual Reference Cell in fabrication.
DR-2 Mark 1 in situ. The casing has been replaced by black Delrin on the current version, Mark 2.
Main Benefits
Structures with permanent CP monitoring systems can be inspected subsea much less frequently.
The rugged design allows the system to be preinstalled or retrofitted.
The double steel wire armored cable can be free routed on offshore structures thus saving cost of conduit or duct systems.
The dual elements combine high accuracy ±0.005V with proven longevity.
Available with integrated current density monitor (product ID: DR-2–CD).
|
Zinc Electrode
|
Material
Dimensions
Weight
Anti-passivation
Accuracy
|
Zinc (high purity 99.95%)
6 x 5 x 11.5"
12 lbs (5.45 kg)
Embedded carbon steel rods
±0.02 V
|
|
Ag/AgCl Electrode
|
Material
Dimensions
Weight
Accuracy
|
Sintered Ag/AgCl w/ silver wire core
0.47" dia. x 0.20" (12 mm dia. x 5 mm)
0.09 oz (2.5 g)
±0.005 V
|
|
Electrode Housing
|
Material
Dimensions
|
Black Delrin
18" x 5" x 4" (45.7 x 12.7 x 10.2 cm)
|
|
Cable Encapsulation
|
Type
|
Cold-mold soft polyurethane made inside embedded PVC condulet within electrode housing.
|
|
Electrode Frame
|
Material
Coating
Conduduit interface
|
ASTM A36 carbon steel
Marine epoxy
2” pipe coupling or 2” 150# blind flange
|
|
Cable
|
Type
OD
Bend radius
Weight/foot in air
|
2 x #12 AWG PVC insulated, PU bedded, DGSWA, HMWPE sheathed
0.560" (1.4 cm)
9" (23 cm)
0.366 lb (0.167 kg)
0.260 lb (0.120 kg)
|
ZW14-12KV
交流真空断路器ZW14-12KV
ZW1412KV
