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| Categories | Medium Voltage Switchgear | 
|---|---|
| Brand Name: | KNKONG | 
| Model Number: | KYN61A-40.5KV | 
| Certification: | CB,ISO | 
| Place of Origin: | China | 
| MOQ: | 1 | 
| Price: | USD 6000-15000 | 
| Payment Terms: | L/C, T/T | 
| Supply Ability: | 50 units/Month | 
| Delivery Time: | 15 working days | 
| Packaging Details: | Standard export packaging | 
| Rating Voltage: | 33KV | 
| Rating Current: | 2000A | 
| Rating Frequency: | 50Hz | 
| Standerds: | IEC GB | 
| OEM/ODM: | Available | 
| Manufactory: | KNKONG | 
| Company Info. | 
| Knkong Electric Co.,Ltd | 
| View Contact Details | 
| Product List | 
Product Introduction
Working environment:
a) Temperature: -25℃~+40℃
b) Humidity: Monthly average 95%; Daily average 90%.
c) Altitude ≤2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor, etc.
e) No frequent violent shake.
Technical data
| Items | Unit | Data | |
| Rating Voltage | KV | 40.5 | |
| Rating Frequency | Hz | 50 | |
| Rating Current | A | 1250,1600,2000 | |
| Rating Short-circuit Breaking Current | KA | 25,31.5 | |
| Rating Making Current (Peak) | KA | 63,80 | |
| 4s Thermal Stability Current | KA | 25,31.5 | |
| Rating Dynamic Current (Peak) | KA | 63,80 | |
| Rating Insulation Level | 1min Power Frequency Withstand Voltage (r.m.s) | KV | 95 | 
| Lightning Impulse Withstand Voltage (Peak) | KV | 185 | |
| 1min Power Frequency Voltage Across the open gap (r.m.s) | KV | 118 | |
| Lightning Impulse Withstand Voltage Across the open gap (Peak) | KV | 215 | |
| Enclosure Protection Class | Enclosure IP4X, Between Compartments IP2X  | ||
| Enclosure Dimension (Width*Depth*Height) | mm | 1400*2800*2600 1600*2800*2600  | |
| Type of Circuit Breaker | VCB: ZN85-40.5 SF6 Circuit Breaker  | ||
*Note: order switchgear should provide SLD(Single-line diagram) by customer
Main components characteristics:
VS1-40.5 Indoor Vacuum Circuit Breaker
Voltage: 40.5kV
Current: 630 1250 1600 2000 2500A
Short circuit breaking current: 20 25 31.5KA
Mechanical life: 20,000 times
KNKONG VS1-40.5 Technical data
| Items | Unit | Date | 
| Rated voltage | KV  | 40.5 | 
| Rated short-time power frequency withstand voltage (1min) | 95 | |
| Rated lightning impulse withstand voltage (peak) | 185 | |
| Rated freq | Hz | 50/60 | 
| Rated current | A | 1250 1600 2000 2500 4000 | 
| Rated short-circuit drop-out current | KA | 25 31.5 | 
| Rated short-time withstand current | 25 31.5 | |
| Rated short-time continual time | s | 4 | 
| Rated peak withstand current | KA | 63 80 | 
| Rated short-circuit closing current | 63 80 | |
| Rated single/ back-to-back capacitor bank drop-out current | A | 630/400 | 
| Opening time (rated volt.) | ms | 35~60 | 
| Closing time (rated volt.) | 50~100 | |
| Mechanical life | times | 20000 | 
| Rated break times for rated short drop-out current | s | 20 | 
| Rated operation voltage | V | AC110/220 DC110/220 | 
| Rated current of power storing motor | W | 230 | 
| Average opening speed | m/s | 1.6~2.0 | 
| Average closing speed | 0.5~0.8 | |
| Rated operation procedure | opening-0.3s-closing opening-180s-closing opening  | 
Knkong Electric has provided 33KV switchgear for the international market for more than 10 years.

                                 
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