Zhuzhou Sanda Electronic Manufacturing

Product Display Product  Introduction 1  3 to 12 channels(may expand to many channels) electrical contactors wireless measuring      temperature 2  1 channel temperature measure 3   Large screen LCD display,  4   Field programmable set 5   Alarm for overtemperature,  6   May keep record on power-off 7   Event record,  8   Clock & calendar for hundred years 9   Alarm output of ocousto-optic,  10   Panel mounting 11   RS485 communication, 12   Modbus-RTU protoc o l Product Functions of Smart Wireless Temperature Control Device with Wireless Sensors May on-line measure and monitor temp...

Product Description GFD(S) Dry Transformers Cooling Fan GFDD490-150 Product descriptions: GFDD series crossflow cooling fan are designed for forced air cooling of transformers and equipments like power distribution cabinets, high and low pressure switchgear etc..They allow increasing about 40-50% of output power of dry-type transformer, which greatly improve the carrying capacity and extend the service life of transform. Features: - Large air flow allows the dry-type transformer to fully dissipate heat, increasing 45% -60% of capacity. - Various types of cooling fans are upon customers' request. Cooling fans vary from impeller diameter, airflow entry, and enclosure material. There are top and side blows for the cooling fans. Aluminum alloy and stainless steel enclosure is optional. - The airflow is blown into air duct of high and low voltage winding of transformers and that of winding and iron core at certain angle (45-60 ° horizontal sextant angle, which greatly incr...

What temperature should I keep my electronics cabinet/closet below? This depends on the equipment you have, but the general rule of thumb is you don’t want the interior ambient temperature to every get above 100 degrees Fahrenheit.  Some consider 90 degrees to be the max, and if you can keep the temperature in this range that is great, but our feeling is never let the temperature exceed 100 degrees Fahrenheit.  Check with Component manufacture for their suggested maximum temperatures. Is the Pre-set Thermal Controller OK, or should I upgrade to the programmable LED controller? The pre-set controller is fine for a lot of applications.  The fans go on at 86-88 and off at 80-81 degrees, and this is a good temperature range.  Sometimes in warmer climates the fans may tend to stay on in the warmer months.  The LED controller allows you to program when the fans go on, and off, and in the above situation you can program a slightly higher on/off range.  Th...

Q. What are the advantages of using a Vortex A/C or Vortex Cooler compared to a typical enclosure air conditioner? A.  Low purchase price, compact size, ease of installation, little to no maintenance, greater reliability, ability to operate in harsh environments, and significantly longer warranty period. Q. What if I just want to keep my enclosure at a slight positive pressure and it is not in a hazardous location? A.  If it is desired to cool the enclosure and maintain a slight pressure just to keep out infiltrating dust and dirt (and the enclosure is NOT in a hazardous location), then alternatives are available: One, the Vortex Cooler can be operated continuously without a thermostat, as long as the heat load remains fairly constant. Two, Vortex A/C models are equipped with a purge-air port that, when opened, will allow a small portion of low pressure air to "bleed off" into the enclosure to pressurize it, regardless of whether or not the unit is in the cooling mode ...

Which applications can heat exchangers be used in? As a heat transfer device, it is the function of a heat exchanger to transfer heat as efficiently as possible. This makes it the ultimate device of choice, for instance, when it comes to saving energy by recovering wasted heat and making it useful again. When there is a waste of energy or a heat stream that is not recovered, a heat exchanger can convert that heat stream into something that we can use. Industrial applications may include but are not limited to: oil coolers transmission and engine coolers boiler coolers waste water heat recovery chilled water systems ground water systems condensers and evaporators in refrigeration systems close approach fluid-to-fluid heat transfer Residential applications may include but are not limited to: radiant floor heating pool heaters snow and ice melting domestic hot water central, solar and geothermal heating I have a pool heater, can I use a heat exchanger with...