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Lightning protection transformer cabinet

Lightning protection transformer cabinet

Lightning protection isolation transformer cabinet is mainly suitable for occasions such as radio and television transmission stations, telecommunications, mobile, China Unicom base stations, high-speed rail, high-rise buildings, airports, stations, terminals and other lightning surges and high-frequency pulse interference.

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商品描述

Lightning protection isolation transformer cabinet is mainly suitable for occasions such as radio and television transmission stations, telecommunications, mobile, China Unicom base stations, high-speed rail, high-rise buildings, airports, stations, terminals and other lightning surges and high-frequency pulse interference.




Lightning protection transformer cabinet Technical parameters
1, power: 5KVA-1000KVA;
2, input voltage: three-phase 660V, 480V, 380V, 220V, 200V, etc.; (customized according to user needs)
3, output voltage: three-phase 660V, 480V, 380V, 220V, 200V, etc.; (customized according to user needs)
4. Output current: determined according to the actual equipment capacity of the customer;
5, frequency: 50/60HZ;
6, no-load current: 2-10%;
7, the impedance voltage: 2-6%;
8, insulation grade: H grade;
9, pressure strength: 3500V /10mA one minute;
10, insulation resistance: >100MΩ;
11, cooling method: dry self-cooling or air-cooling;
12, wiring: △ / Yo (conventional); Yo / Y0, Y / △, △ / △ (customized according to user needs)
13, ambient temperature: - 25 ° C ~ + 50 ° C;
14, relative humidity: ≤ 95%;
15. Altitude: <4000 meters;
16, into the line mode: according to user requirements;
17, with chassis (conventional product IP20 protection level), with liquid crystal display can display input voltage, output voltage, working current, with indicator status indication;
18, lightning protection function: domestic famous brand parallel module;
19. A shielding layer is arranged between the primary winding and the secondary winding, which is completely electrically isolated and has strong anti-lightning function;
20. Silicon steel sheet: Baosteel B35A250 (or equivalent) high-quality grain non-oriented silicon steel sheet is used to reduce transformer loss and improve transformer efficiency.

Note: EECTECH can customize special specifications according to customer requirements.

For more information, please contact EECTECH







1. Straight-through function: When the transformer is faulty, it can be manually switched to the mains supply, which does not affect the normal use of the equipment. (for 1:1 transformer)

2, lightning protection function: you can choose Germany imported OBO lightning protection device (or 7 mode parallel module); (optional)

3, temperature control and cooling method: using a temperature-controlled low-noise cross-flow fan; (optional)


4, transformer incoming line with air circuit breaker, with instantaneous trip, short delay trip, long delay trip three-stage protection (can use the original imported brand); (optional)


5. Configure the power distribution integrated measuring and controlling instrument for recording electrical parameters, with: phase voltage, line voltage, current, power, frequency, maximum voltage, maximum current, etc., remote reading function, both metering function, measurement accuracy level Same level 1.0 as multi-function electronic watch, and obtained CMC certification; (optional)


6, using advanced dry-type transformer dedicated thermostat controller (optional), which has the following characteristics:

a) With over temperature alarm, over temperature trip, three-phase temperature tour display and other functions;
b) The instrument can measure the temperature of the three-phase winding of the dry-type transformer, display the three-phase temperature value by digital cycle or display the three-phase temperature maximum value at a fixed point;
c) The instrument can input 4 temperature settings with the button. When the measured temperature exceeds each set value, the fan start, stop, acceleration, and over temperature alarms are respectively controlled. The temperature setting can be modified at any time;
d) The instrument can provide 3 PTC component inputs. When the temperature measured by the platinum resistor and the PTC component reaches the trip temperature, the trip relay will only operate.

Remarks: The above is an optional configuration, if necessary, the price is extra.







Use occasion
1. SW-SGB (DGB)-FL series three-phase (single-phase) lightning protection transformer cabinet is mainly used for broadcasting and television transmitting stations, telecommunications, mobile, China Unicom base stations, high-speed rail, high-rise buildings, airports, stations, terminals and other lightning High surge and high frequency pulse interference.

2. This series of lightning protection transformer cabinets should be used indoors. The normal conditions of use are:
      1), ambient temperature: -25 ° C - +50 ° C
      2), altitude: <4000M (please specify the order above 2000 meters)
      3) Relative humidity: < 95%
      4) No serious impact on transformer insulation chemical deposits, dirt and other explosive and corrosive media.








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