Product overview
HXGN囗-12 box-type fixed metal-enclosed switchgear (referred to as ring network cabinet), AC high-voltage complete set of equipment with rated voltage 12kV and rated frequency 50Hz, mainly used for three-phase AC ring network, terminal distribution network and industrial use Electrical equipment, which plays the role of receiving, distributing electric energy and protecting. It is also suitable for installation in box-type substations. This product complies with GB3906 "3~35kV AC metal-enclosed switchgear", GB/T11022 "Shared technical requirements for high-voltage switchgear and control equipment standards", IEC60298 "AC metal-enclosed switchgear and control equipment with rated voltage above 1KV and 52KV and below" : Requirements of the IEC60694 "Common Clauses for High Voltage Switchgear and Control Equipment" standard. And has the "five prevention" interlocking function.
Model and features
Normal service conditions
● The upper limit of ambient temperature is +40°C and the lower limit is -15°C;
● The altitude is not greater than 1000m;
● The daily average of relative temperature is not greater than 95% and the monthly average is not greater than 90%; no fire, Places with explosion risk and severe vibration;
● The surrounding air is free from obvious pollution such as corrosive or flammable gases, water vapor and conductive dust.
Technical parameter
名称Description | 单位Unit | FN12-12 | FZN25-12 | |
额定电压Rated voltage | 12 | |||
lmin工频耐受电压 Rated power frequency withstand voltage(lmin) |
KV |
对地及相间42;隔离断口48 To earth and between phase:42; Across the isolating distances: 48 |
||
雷电冲击电压(峰值) Rated lighting impulse withstand voltage |
对地及相间75;隔离断口85
To earth and between phase: 75; |
|||
额定频率Rated frequency | Hz | 50 | ||
负荷开关 Load switch |
额定电流Rated current | A | 630 | |
额定电流下电寿命 Electrical endurance under rated current |
次 | 100 | ||
开断空载变压器容量 Capactiy of breaking non-load transformer |
KVA | 1250 | 1600 | |
额定热稳定电流 Rated short-time withstand current |
KA/S |
20/4;接地开20/2 20/4, Earthing switch 20/2 |
||
额定动稳定电流(峰值) Rated peak withstand current |
KA | 50 | ||
额定短路关合电流(峰值) Rated short-circuit making current |
KA | 50 | ||
熔断器额定电流 Fuse Rated current |
A | 125 | ||
组合电器 Switch-fuse combination |
额定转移电流 Rated transfer current |
A | 1200 | 2000 |
额定短路开断电流 Rated short-circuit breaking current |
KA | 31.5 | ||
配用熔断器型号 Equipped with fuses |
S口LAJ-12 | |||
机械寿命Mechanical endurance | 2000 | 10000 | ||
辅助回路lmin工频耐压 lmin power!「equency withstand voltage of auxiliary circuit |
2 | |||
电动操动机构工作电压 Working voltage of motor actuator mechanism |
交直流220; 110 AC, DC 220; 110 |
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防护等级Degree of protection | IP4X |
Overall dimension