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Product classification
KYN28-12 Armored Removable AC Metal Enclosed Switchgear
High voltage switchgear series
- Details
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- Commodity name: KYN28-12 Armored Removable AC Metal Enclosed Switchgear
KYN28-12 indoor AC armored removable metal-enclosed switchgear. It is suitable for three-phase AC rated voltage 12kV, rated frequency 50Hz power system, used to receive and distribute electric energy and control, protect and monitor the circuit.
Overview
KYN28-12 indoor AC armored removable metal-enclosed switchgear. It is suitable for three-phase AC rated voltage 12kV, rated frequency 50Hz power system, used to receive and distribute electric energy and control, protect and monitor the circuit.
This product complies with the requirements of GB3906 "3-35kV AC Metal-enclosed Switchgear", GB/T11022 "Common Technical Requirements for High-voltage Switchgear and Control Equipment Standards", IEC60298 "Rated Voltage 1kV Above 52kV and Below AC Metal-enclosed Switchgear and Control Equipment", DL/T404 "Technical Conditions for Indoor AC High-voltage Switchgear Ordering".Model Meaning
H Y N 28 - 12 / 口 - Z Metal armored Removable Indoor Design No. Rated voltage (KV) Rated current (KV) Vacuum circuit breaker
Conditions of use
• Ambient temperature: maximum temperature +40°C, minimum temperature -15%C (can reach -45°C under special process);
• Ambient humidity: daily average <95%. Monthly average ≤90%;
• Altitude: below 1000m;
• Earthquake resistance: earthquake intensity does not exceed 8 degrees;
• The surrounding air should not contain obvious pollution such as corrosive or flammable gas and water vapor;
• No serious dirt and frequent severe vibration, the harshness design under harsh conditions meets Class 1 requirements;
• When used under normal environmental conditions exceeding those specified in GB3906, the user and the manufacturer shall negotiate.
Note: ① When the relative humidity is greater than 70%, the electric heater should be turned on. ② Where the altitude exceeds 1000m, it shall be handled in accordance with the provisions of JB/Z102-71.Main technical parameters
project Unit Parameter Rated voltage kV 3.6、7.2、12 Rated frequency Hz 50 Circuit breaker rated current A 630、1250、1600、2000、2500、3150 Switch cabinet rated current A 630、1250、1600、2000、2500、3150 Rated dynamic stability current (4s) kA 16、20、25、31.5、40、50 Rated stability current (peak value) kA 40、50、63、80、100、125 Rated short-circuit breaking current kA 16、20、25、31.5、40、50 Rated short-circuit closing current (peak value) kA 40、50、63、80、100、125 Rated insulation level 1 min power frequency withstand voltage kV 24 32 42 Lightning impulse withstand voltage 40 60 75 Protection level Housing IP4X, isolation room, circuit breaker room door open IP2X VD4, VS1-12 Vacuum circuit breaker technical parameters
project Unit Parameter Rated voltage kV 12 Rated frequency Hz 50 Circuit breaker rated current A 630、1250、1600、2000、2500、3150 Rated dynamic stability current (4S) A 16、20、25、34.5、40、50 Rated stability current (peak value) kA 40、50、63、80、100、125 Rated short-circuit breaking current kA 16、20、25、34.5、40、50 Rated short-circuit closing current (peak value) kA 40、50、63、80、100、125 Rated insulation level 1 min power frequency withstand voltage kV 42 Lightning impulse withstand voltage 75 Rated operating sequence Rated short-circuit breaking current breaking times Second-rate 50 Mechanical life Second-rate 200 Mechanical characteristics of VD4 and VS1 vacuum circuit breakers
project Unit Parameter Contact opening distance mm 11±01 Overtravel mm 4±0.5 Phase center distance mm 210±0.5，275±0.5 Closing contact bounce time ms ≤2 Three-phase opening phase difference ms ≤2 Breaker time
When the operating voltage isMaximum ms ≤50 Rated ms ≤50 Minimum ms ≤50 Closing time ms ≤60 Average closing speed m/s 0.9-1.2 Average opening speed m/s 0.6-0.8 When the circuit breaker is used to control a 3~10kV motor, if the starting current is less than 600A, a metal zinc oxide lightning arrester must be added. The specific requirements are negotiated between the user and our company: When the circuit breaker is used to disconnect a capacitor bank, the rated current of the capacitor should not be greater than 80% of the rated current of the circuit breaker.
Operating mechanism technical parameters
project Unit Parameter Rated operating voltage Closing coil V AC/DC220，110 Opening coil V AC/DC220，110 Coil power Closing coil W 245 Opening coil W 245 Energy storage motor power W 50 Energy storage motor rated voltage V AC/DC220，110 Energy storage time S ≤10 Overall installation dimensions (mm)
| About Huarui Power
The initial factory of Cangzhou Huarui Transformer Co., Ltd. was born in 1989. After developing and growing, it integrated resources and registered a company in July 2004. It is located in Cangzhou City, Hebei Province, which is known as "the first in the world in the hometown of martial arts.
Huarui Power, a high and low voltage power expert, and a supplier of optical storage and charging solutions, is a high-tech enterprise integrating R & D, design, manufacturing, product sales and service operations. It is a qualified supplier of State Grid, a qualified supplier of Sinochem Group, a qualified supplier of China's military enterprises, and the first brand of transformer in Cangzhou.
Huarui Power, its products cover energy-saving distribution transformers, box-type substations, high and low voltage complete sets of electrical equipment, power distribution automation, high-voltage cable branch boxes, etc., provide professional solutions for different industries and fields, and provide a variety of customized power consumption solutions according to the characteristics of customers' power consumption. The products are used in distribution networks and new energy projects, rail transit, metallurgy, petrochemical, real estate and other fields in all provinces and regions across the country.
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