We will present the performance, safe operation methods, and technical පරාමිතයs of BKHB-12 මධ් යම වොටෝජ් ස්විච් චු
Replace SF6 load switch ring network cabinet.
චාරික බ් රේකර් කැබින්
ව් යාපෘතිය | එකක | පරාමිතය | ||
වැටීම | KV | 12 | ||
ලකුණු ප් රමාණය | හැස්ස් | 50 | ||
Rated insulation level | 1min power frequency withstand voltage | Opposite the ground and the phase | KV | 42 |
Isolation fracture | KV | 48 | ||
Lightning Shock Withstand Voltage (Peak) | Opposite the ground and the phase | KV | 75 | |
Isolation fracture | KV | 85 | ||
1min power frequency withstand voltage for auxiliary/control loops (to ground) | KV | 2 | ||
දැනට භාවිතය | A. | 630 | ||
Rated Short-Time Withstand Current (RMS) | Main loop/ground switch | KA. | 25/4s | |
Ground connection loop | KA. | 21.7/4s | ||
වර්තමාන සිටීම | Main loop/ground switch | KA. | 63 | |
Ground connection loop | KA. | 54.5 | ||
Rated short-circuit interruption current and frequency | KA. / වේලාව | 25/30 | ||
Rated Short Circuit Closing Current (Peak) | KA. | 63 | ||
Rated cable charging breaking current | A. | 25 | ||
The rated operating sequence of the circuit breaker | O - 0.3s - CO - 180s - CO | |||
Mechanical life | Circuit breaker/disconnect switch | වේලාව | 10000/3000 | |
ආරක්ෂක මට්ටම් | Sealed cabinet | IP67 | ||
Switchgear housing | IP4X | |||
Gas pressure | Gas Rated Fill Level (20°C, Gauge Pressure) | Mpa | 0.02 | |
Minimum gas filling level (21°C, gauge pressure) | Mpa | 0 | ||
Sealing performance | A.nnual leakage rate | %/year | ≤0.05 | |
ස්විච්කරය පූරණය කරන්න
ව් යාපෘතිය | එකක | පරාමිතය | ||
වැටීම | KV | 12 | ||
ලකුණු ප් රමාණය | හැස්ස් | 50 | ||
Rated insulation level | 1min power frequency withstand voltage | Opposite the ground and the phase | KV | 42 |
Isolation fracture | KV | 48 | ||
Lightning Shock Withstand Voltage (Peak) | Opposite the ground and the phase | KV | 75 | |
Isolation fracture | KV | 85 | ||
1min power frequency withstand voltage (to ground) for auxiliary/control loops | KV | 2 | ||
දැනට භාවිතය | A. | 630 | ||
Rated Short-Time Withstand Current (RMS) | Main loop/ground switch | KA. | 25/4s | |
Ground connection loop | KA. | 21.7/4s | ||
වර්තමාන සිටීම | Main loop/ground switch | KA. | 63 | |
Ground connection loop | KA. | 54.5 | ||
Rated Short Circuit Closing Current (Peak) | Load switch/ground switch | KA. | 63 | |
Rated active load breaking current | A. | 630 | ||
Rated closed-loop breaking current | A. | 630 | ||
5% rated active load breaking current | A. | 31.5 | ||
Rated cable charging breaking current | A. | 10 | ||
The number of rated active load breaks | වේලාව | 100 | ||
Ground fault current interruption | A. / වේලාව | 31.5/10 | ||
The charging current of the line and cable is interrupted under the condition of ground fault | A. / වේලාව | 17.4/10 | ||
Mechanical life | Circuit breaker/disconnect switch | වේලාව | 10000/3000 | |
ආරක්ෂක මට්ටම් | Sealed cabinet | - | IP67 | |
Switchgear housing | - | IP4X | ||
Gas pressure | Gas Rated Fill Level (20°C, Gauge Pressure) | Mpa | 0.02 | |
Minimum functional level of gas (20°C, gauge pressure) | Mpa | 0 | ||
Sealing performance | A.nnual leakage rate | %/ year | ≤0.05 | |
Environmental protection gas cabinet implementation standards
GB/T1022 high-voltage මාරුකරු and control equipment standard common technical requirements
GB/T39063640.5KV A.C metal enclosed මාරුකරු and control equipment
GB/T1985 High voltage A.C disconnect switch and grounding switch
GB/T38043.6-40.5KV A.C High Voltage Load Switch
GB/T1984 High Voltage A.C Circuit Breaker
GB/T4208 enclosure protection level IP code
GB/T7354 partial discharge measurement
GB/T311.1 Insulation and Fitting Part 1: Definitions, Principles and Rules
Normal use conditions of gas cabinets
High temperature: 45 degrees Celsius;
Low temperature: -25 degrees Celsius:
High temperature: (24-hour average) 35 degrees Celsius;
Large average relative humidity (24 hours): ≤95%;
A.ltitude: ≤ 1500 meters:
Seismic Capacity: 8 degrees:
ආරක්ෂක මට්ටම්: live body seal IP67, මාරුකරු shell IP4X;
The surrounding air should not be significantly polluted by corrosive combustible gases, water vapor, etc.
When used under normal environmental conditions that exceed the provisions of GB/T3906, the user and our company shall negotiate.
නිෂ්පාදන

Ring network cabinet annotation description:
1. Low-pressure instrument room 2. Eyebrow 3. Operation room 4. Observation simplification
5. Live display 6. Cable room 7. Vacuum circuit breaker/load switch
8. Three-station isolation/grounding switch 9. Pressure relief device 10. Switch mechanism
11. Three-station mechanism 12. Five-proof interlocking mechanism 13. Inlet and outlet line through the wall casing 14. Grounding busbar
Environmental protection gas cabinet configuration plan 1
CL 650mm ◆Basic equipment◇ Load switch ◇ Two-station disconnect switch ◇ Live display ◇ Standard busbar ◇ Operating handle ◇ Contact bus | Optional accessories ◇ Electric operation mechanism ◇ Digital display instrument ◇ DC power supply ◇ Electromagnetic lock ◇ Pointer instrument ◇ 3-in-2 mechanical interlock ◇ Online monitoring of lightning arresters ◇ අඩු පීඩනය කාමරය ◇ Digital display instrument ◇ Raised seat | ◇ Passive protection ◇ Raised seat ◇ Rectifier module ◇ අඩු පීඩනය කාමරය ◇ 2-in-1 mechanical interlock ◇ Surge arresters ◇ DC power supply (12h-24A.h) ◇ Pointer instrument ◇ Electromagnetic lock | ![]() |
PTC 500mm ◆Basic equipment ◇ Load switch ◇ Three-station disconnect switch ◇ Live display ◇ Standard busbar ◇ Operating handle ◆ Voltage transformer ◇ PT roasting tube ◇ Elbow type cable plug (including cable) | ◆Optional accessories ◇ Electric camera mechanism ◇ Digital display instrument ◇ DC power supply ◇ Electromagnetic lock ◇ Pointer instrument ◇ 3-in-2 mechanical interlock ◇ Online monitoring of lightning arresters ◇ අඩු පීඩනය කාමරය ◇ Digital display instrument ◇ Raised seat | ◇ Passive protection ◇ Raised seat ◇ Olive block ◇ අඩු පීඩනය කාමරය ◇ 2-in-1 mechanical interlock ◇ Surge arresters ◇ DC power supply 112h-24A.h) ◇ Pointer instrument ◇ Electromagnetic lock | ![]() |
| PT 500mm ◆Basic equipment ◇ Three-station disconnect switch ◇ Live display ◇ Standard field line ◇ Operating handle ◇ Voltage transformer ◇ PT roasting tube ◇ Elbow type cable plug (including cable) | Optional accessories ◇ Electric operation mechanism ◇ Digital display instrument ◇ DC power supply ◇ Electromagnetic lock ◇ Pointer instrument 3-in-2 mechanical interlock 0 ◇ Online monitoring of lightning arresters ◇ අඩු පීඩනය කාමරය ◇ Digital display instrument ◇ Raised seat | ◇ Passive protection ◇ Raised seat ◇ Rectifier module ◇ අඩු පීඩනය කාමරය ◇ 2-in-1 mechanical interlock ◇ Surge arresters ◇ DC power supply 112h-24A.h) ◇ Pointer instrument ◇ Electromagnetic lock | ![]() |
PT 500mm ◆Basic equipment ◇ Live display ◇ Standard busbar ◇ Voltage transformer ◇ PT roasting tube ◇ Elbow type cable plug (including cable) | ◆Optional accessories ◇ Electric camera mechanism ◇ Digital display instrument ◇ DC power supply ◇ Electromagnetic lock ◇ Pointer instrument ◇ 3-in-2 mechanical interlock ◇ Online monitoring of lightning arresters ◇ අඩු පීඩනය කාමරය ◇ Digital display instrument ◇ Raised seat | ◇ Passive protection ◇ Raised seat ◇ Rectifier module ◇ අඩු පීඩනය කාමරය ◇ 2-in-1 mechanical interlock ◇ Follow the thunder device ◇ DC power supply 112h-24A.h) ◇ Pointer instrument ◇ Electromagnetic lock | ![]() |
PTS 500mm ◆Basic equipment Now voltage transformers o PT fused tubes ◇ Elbow type cable plug (including cable) | Optional accessories arrester ◇ Online monitoring of lightning arresters ◇ DC power supply 112h-24A.h) ◇ අඩු පීඩනය කාමරය Q Pointer Instrument ◇ Digital display instrument ◇ Electric lock ◇ Raised seat | ![]() |
M 650mm ◆Basic equipment 0 live display ◇ Long and short field lines ◇ Transfer bus Q Voltage transformer ◇ FT roasting tube ◇ Metering box 0 Voltage පරිවර්තකය (Electricity Supply) Note: If the PT front is equipped with a formal disconnect switch, the cabinet width size needs to be changed to 1000mm, and the other dimensions remain unchanged. | ◆Optional accessories අඩු පීඩනය කාමරය ◇ Pointer instrument ◇ Digital display instrument ◇ Electromagnetic lock ◇ Raised seat ◇ Temperature and temperature controller | ![]() |
Environmental protection gas cabinet configuration scheme 2
C 420mm ◆Basic equipment ◇ Three-station disconnect switch 0 live display ◇ Standard field line ◇ Operating handle ◇Load switch | ◆Optional accessories ◇ Electric operation mechanism ◇ Surge arresters ◇ Comprehensive insurance ◇ Digital display instrument ◇ DC power supply ◇ Magnetic lock ◇ Zero-sequence transformer ◇ Fault indicator (with temperature measurement) ◇ Pointer instrument Q 3-in-2 mechanical interlock ◇ Cable attachment | ◇ Online monitoring of lightning arresters ◇ Passive protection ◇ Raised seat ◇ Rectifier module ◇ Core type current transformer ◇ Fault indicator EKL-4 Q අඩු පීඩනය කාමරය ◇ 2-in-1 mechanical interlock ◇ Incoming line grounding locking device | ![]() |
V 420mm ◆Basic equipment ◇ Three-station disconnect switch ◇ Live display ◇ Standard busbar ◇ Operating handle ◇ Circuit breaker ◇ Current transformer | ◆Optional accessories ◇ Electric operation mechanism ◇ Surge arresters ◇ Comprehensive insurance ◇ Digital display instrument ◇ DC drifting ◇ Electromagnetic lock 0 Zero-sequence transformer ◇ Fault indicator (with temperature measurement) ◇ Pointer instrument Q 3-in-2 mechanical interlock ◇ Cable attachment | ◇ Online monitoring of lightning arresters ◇ Passive protection ◇ Raised seat ◇ Rectifier crossbar ◇ Core type current transformer ◇ Fault indicator EKL-4 ◇ අඩු පීඩනය කාමරය ◇ 2-in-1 mechanical interlock ◇ Incoming line grounding locking device | ![]() |
V 650mm ◆Basic equipment ◇ Two-station disconnect switch ◇ Live display ◇ Standard busbar ◇ Operating handle ◇ Circuit breaker ◇ Current transformer ◇ Contact bus | ◆Optional accessories ◇ Electric operation mechanism ◇ Comprehensive insurance ◇ අඩු පීඩනය කාමරය 0 Pointer Instrument ◇ Digital display instrument ◇ Raised seat ◇ Passive protection ◇ Rectifier module ◇ Electric lock | ◇ 2-in-1 mechanical interlock ◇ 3-in-2 mechanical interlock ◇ DC power supply | ![]() |
Environmental protection gas cabinet configuration plan 3
Dl 420mm ◆Basic equipment ◇ Live display ◇ Standard busbar | Optional accessories ◇ Cable attachment ◇ Surge arresters ◇ Online monitoring of lightning arresters ◇ Electric lock ◇ Raised seat ◇ Fault indicator EKL-4 ◇ Fault indicator (with temperature measurement) | ![]() |
Dl 420mm ◆Basic equipment ◇ Live display ◇ Standard busbar ◇ Operating handle ◇ Two-station disconnect switch | ◆Optional accessories ◇ අඩු පීඩනය කාමරය ◇ Two-in-one maple interlock ◇ 3-in-2 mechanical interlock ◇ Electromagnetic lock ◇ Raised seat | ![]() |
