The GZDW intelligent high-frequency DC control panel/microcomputer-controlled DC power cabinet is designed with nickel-cadmiumbatteries, a float charge machine, and an automatic detection andalarm system.lt boasts a long service life, minimal pollution, easymaintenance, stable voltage, ultra-low internal resistance output,capacity to handle large current shocks, strong adaptability, and highreliability. This makes it an ideal DC power source suitable for variousapplications, including substations up to 500kV, power plants,metallurgy, mining,petroleum, broadcasting, computer roomsunderground railways, high-rise buildings, and more. lt serves as areliable power source for DC control, signal power supply, power-offprotection, and circuit breaker operation mechanisms. The productaligns with the JB/T5777.4-2000 standard for “General TechnicalConditions and Safety Requirements for DC Power Supply Equipmentin Power Systems.
Ambient Condition
Ambient Temperature: -50’c to +40’c, with an average temperature not exceeding +36’c within 24 hours
Altitude:Not exceeding 2500 meters.Relative Humidity: Not exceeding 50% when the ambient air temperature is +40’CAt lower temperatures, higher relative humidity (e.g., 90% at +20*c) is allowed, considering moderate condensation due to(emperature changes allow for moderate condensation, the inclination of the equipmentinstallation to the vertical plane shouldnot exceed 5°
The eauipment should be installed in places without severe vibration, impact, and corrosion.
Ordering Information(Specify)
1 .Main circuit scheme number, purpose, single-line system diagram, arrangement diagram, and layout ofthe distribution room, etc2.Auxiliary circuit wiring diagram,termina arrangement diagram.
3.Type, specifications, and quantity of electrical components inside the switchgear.4.Control. measurement,and protection reguirements for switchgear, as well as other interlocking and automatic device
reguirements.5 if busbar bridae connections are reouired between switchaear or incoming cabinets, provide specific reguirements for the ratedcurrent,span, height above ground, etc.
6.When accessories or spare parts are needed, specify the types and quantities.
7.lf the switchgear is used in special environmental conditions, other special requirements should be detailed when ordering.
