ZCH32-12 Outdoor Medium Voltage Vacuum Recloser
ZCH32-12 Outdoor Medium Voltage Vacuum Recloser
The ZCH32-12 outdoor medium voltage vacuum recloser is a new type recloser that comprises vacuum circuit breaker and recloser controller. The microcomputer protection function init can achieve quick-breaking, delayed quick-breaking,and over current three stage protection. The recloser has many functions such as flexiblesetting, definite time characteristics, adjustable protection value and delayvalue, back up protection value with auto-switchover, cooling load auto-delay.Up to three times of reclosingwith any reclosingintervals can be set at the same time, while you can activate any of the reclosing settings as you want.
The ZCH32-12 outdoor medium voltage vacuum recloser has manyfunctions including measuring, control, monitoring, communicating, and telecontrol. It features withhigh integration, flexible configuration, and user friendly interface. Bothsimple and complex powerdistribution system can adopt this recloser. Using this fundamental device, basicautomatic functions of the distribution system can be achieved withoutbackground system, or you can apply it to a distribution system with backgroundsystem to achieve great stability and reliability.
The ZCH32-12 outdoor medium voltage vacuum recloser is also suitable for constructing and upgrading the10KV distribution system in cities and rural places, oil fields, mines,industrial company, and automatic railway system.
Model name and its meaning
：
ZCH32-12/630□
（kA） Rated short-circuit breaking current（kA）
（A） Rated current （A）
Rated voltage （V）
Product code
Recolser
Vacuum circuit breaker
Working environment
Ambient temperature: -45℃～ 45℃
Daily temperature difference; 25℃
Altitude: ≤ 3000 m
Wind speed: ≤ 35m/s
Pollution class: Class IV according toGB/T5582-1993
Installation area: No flammable, explosive orchemically corrosive substances
Seismic capacity: VIII grade(seismic intensity)
| Main parameters of the recloser | ||||
| Item | Unit | ZCH32-12/630-16 | ZCH32-12/630-20 | |
| Rated voltage | kV | 12 |
| |
| Rated current | A | 630 | 630 | |
| Rated short-circuit breaking current | kA | 16 | 20 | |
| Rated short-circuit peak making current | kA | 40 | 50 | |
| Rated peak withstand current | kA | 40 | 50 | |
| Rated short-time withstand current | kA | 16 | 20 | |
| Rated short-circuit duration | s | 4 |
| |
| Rated insulating level | Lighting impulse peak withstand voltage | kV | Phase to phase/phase to earth: 75, across open contacts: 85 | |
| Power frequency withstand voltage 1min | Phase to phase/phase to earth: 42, across open contacts: 48 | |||
| Rated operating sequence |
|
| ||
| Rated short-circuit current breaking and making endurance | Time | 30 | ||
| Mechanical endurance | Time | 10000 | ||
| Item | Unit | ZCH32-12/630-16 | ZCH32-12/630-20 | |
| Rated operating voltage (opening/closing coil) | V | DC220.110. AC220 |
| |
| Moving and fixed contacts total abrasion thickness allowance | mm | 3 |
| |
| Overcorrect release locking current | A | 5 |
| |
| Current transformer current ratio (normal) |
| 200/5 400/5 630/5 |
| |
| Distance between open contacts | mm | 9 ±1 |
| |
| Contact overtravel | mm | 2 ±0.5 |
| |
| Average opening speed | m/s | 1.2 ±0.2 |
| |
| Average closing speed | m/s | 0.6 ±0.2 |
| |
| Opening time | ms | 15-50 |
| |
| Closing time | ms | 25-80 |
| |
| Closing bounce time | ms | ≤2 |
| |
| Three-phase open and close synchronism | ms | ≤2 |
| |
| Direct current resistance (loop circuit of each phase) | μΩ | ≤ 80 (on rated voltage) |
| |
| Motor for load switch operation | Rated voltage | V | DC/AC220 |
|
| Rated power | W | 70 |
| |
| Energy storage time | S | ≤8 |
| |
| Weight | kg | 100 |
| |
The shape chart and the installationdimension
Links：https://www.globefindpro.com/products/44251.html
