GGD type AC low voltage fixed switchgear

GGD type AC low voltage fixed switchgear is suitable for power plants, substations, factories and mining enterprises and other power users of the power distribution system of AC 50Hz, rated working voltage 380V, rated working current 400A ~ 1600A, as power, lighting, and power distribution equipment for the conversion, distribution and control.

GGD ac low voltage fixed switchgear is a new type of low voltage switchgear designed on the principle of safety, economy, reasonableness and reliability according to the requirements of power users and design departments. The product has the characteristics of high breaking ability, good dynamic and thermal stability, flexible electrical scheme, convenient combination, series, practical, novel structure and high protection grade.

GGD type AC low-voltage fixed switchgear conforms to IEC61439-2 "Low-voltage complete switchgear and control equipment", GB7251.12-2013 "low-voltage complete switchgear and control Equipment" standards.

Using the environment

● Ambient air temperature is not higher than +40℃, not lower than -5℃. The average temperature within 24 hours shall not be higher than +35° C.

● Indoor installation and use, the altitude of the use site shall not exceed 2000m.

● The relative humidity of the surrounding air shall not exceed 50% at the highest temperature of +40℃, and greater relative humidity is allowed at lower temperatures (for example, 90% at +20℃). The effect of occasional condensation due to temperature changes shall be considered.

● The inclination of the vertical plane shall not exceed 5° when the equipment is installed.

● The equipment should be installed in the place without violent vibration and impact, and not enough to make the electrical components corroded.

● Users have special requirements can be negotiated with our company to solve.

Ordering instructions

When ordering, users should provide the following information

● Full model of the product (including the main circuit scheme number and auxiliary circuit scheme number);

● Main circuit system combination sequence diagram (permutation diagram and single line diagram);

● Auxiliary circuit electrical schematic diagram;

● List of cabinet components;

● Distribution cabinet arrangement diagram; Distribution cabinet surface paint film color;

● Other special requirements inconsistent with the normal use conditions of the product.

● The frame is assembled by local welding of 8MF cold bending steel. Its strength and bearing capacity meet the installation requirements of electrical components. Installation holes E=20mm and E=100mm are installed on the frame respectively to improve the versatility of product assembly.

● ZMJ type bus clamp is a building block combination structure, thermoplastic molding with high flame retardant PPO material, high mechanical strength and insulation strength, can withstand 50kA effective value, peak 105kA dynamic and thermal stability impact force, long-term allowable temperature up to 120°C.

● The cabinet door is connected with the frame with galvanized rotating shaft hinge, convenient installation and disassembly. Rubber inserts are added to the hem of the door.

● The installation parts in the cabinet and the frame are connected with ground kneed screw to form a complete grounding protection circuit.

● The protection level of the front, back, top and two sides of the cabinet reaches IP30, and can also be selected between IP20 and IP40 according to the requirements of users. To strengthen ventilation and heat dissipation, in the lower part of the cabinet body, after the upper part and the top are ventilation and heat dissipation holes, so that the cabinet body is formed in the operation of natural ventilation, have better heat dissipation performance. The heat dissipation hole is sealed with steel wire mesh plate to ensure the protection level of cabinet body.

● The top cover of the cabinet can be removed when needed to facilitate the assembly and adjustment of the main bus line on site.

● The outer protective layer of cabinet body is sprayed with polyester orange baking paint to eliminate glare and have strong adhesion. The installation parts in the cabinet are galvanized and passivated to improve the performance of "three prevention".

● Rated insulation voltage: 660

● Rated working frequency: 50Hz

● Rated working voltage of auxiliary circuit: AC100, 220, 380V; DC110, 220 v;

● Rated operating current: 400A, 630A, 800A, 1000A, 1250A, 1600A

● Rated short-circuit breaking current: 30kA.

● Rated peak tolerance current: 63kA

● Rated short-time withstand current: 30kA.

● Universal type circuit breaker: DW15 series and other segmental ability strong advantage manufacturers electrical products, current grade includes: 1600A, 400A.

● Open knife switch: HD13 series and other large flow capacity of high quality switch electrical products.

● Copper bar: the main bus bar uses TMY-10x 100mm tin plated high quality conductor, PE ground bar uses TMY-8x100mm tin plated high quality conductor, strong flow capacity.

● Insulation: DMC series insulation, strong hardness, high temperature resistance.

● Shell: protection grade: IP30.

● Size: 2200x (800~400) x (1000~600) mm (H x W x D), material: 1.5mm steel plate.