Scope

This product is 3 ~ 40.5KV three-phase AC 50HZ, single bus for receiving and distribution of electric energy output breaking power distribution control device. Mainly used in power plants, power transmission substations, industrial and mining enterprises, power distribution and electrical industry.

By the secondary substation electrical systems, high voltage power transmission and large motor starting, etc. Control, protect, Central monitoring system purposes.

Basis and taking into account any standards and regulations

1. GB3906 (3 ~ 35KV AC metal-enclosed switchgear).
2. GB11022 (high voltage switchgear General technical conditions)。
3. IEC298 (1009) (rated voltage 1KV above and below 50KV AC metal closed switchgear and control equipment)。
4. DL/T404 (Indoor AC high voltage switch box ordering technology)。

Applicable

1. Ambient temperature: the maximum temperature of + 40 ℃, the lowest temperature of -10 ℃ 。
2. Environmental humidity: daily average relative humidity ≦ 95%, the monthly mean relative humidity ≦ 90% 。
3. Altitude: 1000m or less。
4. Anti-earthquake degree: earthquake intensity does not exceed 8 degrees。
5. The ambient air should not be obviously polluted flammable corrosive gases, water vapor, etc。
6. No recurrent severe vibration place. Severities under severe conditions designed to meet such requirements。
7. When used in excess of the specified GB3906 normal ambient conditions negotiated by the user and the Division I。

Characteristic

• Box structure using aluminum-zinc plate by bending CNC machine tool processing technology after multiple bolted together, the whole is composed of two major parts can be removed from the cabinet and components.
• Box is a separate compartment, the housing protection rating of IP4X, when the circuit breaker compartment door of the small room between the open anti-Protection rating IP2X, high degree of protection to prevent debris and pest invasion.
• Operations are used in door off while.
• Replace the circuit breaker is simple, handcart interchangeability.
• Reliable wall mount cabinet, the front box maintenance, reduce floor space.
• Ample cable room space can connect multiple cables.
• Circuit breaker compartment and cable compartment heater can be installed separately, to prevent condensation and corrosion.
• Breaker room, cable room are available upon request to install a lighting device, in order to facilitate maintenance and repair.
• Has overhead outlet, cable access and other features programs by arrangement. After the combination can become the type of program distribution device.

The main technical parameters

NO	NAME		Unit	Data
1	Rated voltage (maximum working voltage)		KV	3.6  7.2  12  24				40.5
2	Rated frequency		Hz	50
3	Breaker rating		A	630  1250  1600 2000  2500 3150				1250  1600 2000  2500
4	Switch box rated current		A	6301250 1600 2000 2500 3150				1250  1600 2000  2500
5	Rated thermal current (4S)		KA	16 20 25 31.5 40				25 31.5
6	Rated dynamic current (peak)		KA	40 50 63 80 100				63 80
7	Rated short circuit breaking current		KA	16 20 25 31.5 40				25 31.5
8	Rated short-circuit current (peak)		KA	40 50 63 80 100				63 80
9	Rated insulation level	1minFrequency withstand voltage	KV	24	32	42	65	95
9		Lightning out by the voltage	KV	40	60	75	79	185
10	Protection class		Shell IP4X, among compartment circuit breaker compartment door open for the IP2X

Reference Size

Project	Unit	KYN28A-12	KYN28A-24	KYN61-40.5
Height (H)	mm	2300	2430	2400 2600
The width (W)	mm	800 1000	1000	1200 1400
Depth (D)	mm	1500 1660	1860	2600 2800

Product photos