Product Details
1 Application
GKD(KYGD) series mining general low-voltage switchgear is mainly used in non-coal mine underground power control system, as the low-voltage side of the substation feed line, feeder, contact, lighting power supply, etc.
Mining general low-voltage switchgear implementation standards GB/T 12173-2008 "Mining General Electrical Equipment", GB7251.1-2013 "Low-voltage Complete Equipment and Control equipment", Q/HY01-2016 "Mining General Low-voltage switchgear"
2 Environmental conditions
2.1 Normal working conditions
Normal working conditions shall be within the limits specified below:
a) The upper limit of ambient air temperature is +40 ° C and the lower limit is -5 ° C.
b) Altitude: not more than 2000m.
c) The average relative humidity of the surrounding air shall not exceed 95% (20℃±5℃)
d) In a gas or steam environment without damaging the insulation.
e) Fixed installation and use.
f) in the central control room or control room.
2.2 Special working conditions
Working conditions that do not meet the requirements specified in 2.1 are special working conditions and are manufactured in accordance with the agreement signed with the user.
3. Main technical parameters
4 Product Model
The model of the product is GKD(KYGD) 1600/380
Rated current/rated voltage
General low voltage switchgear for mining
Product structure and principle
5.1 Product structure and dimensions
The general low-voltage switchgear for mining is mainly composed of isolating switch, circuit breaker, current transformer, fuse, transfer switch, signal light and cabinet.
5.2 Electrical Principle
5.2.1 Main technical performance:
The main technical performance of the switchgear conforms to the provisions of GB12173-2008 "General Electrical Equipment for Mining", discharge gap ≥10mm, creepage distance ≥12.5mm, distribution cabinet can be composed of different lines of different schemes, the main components are domestic new technology products and introduced technology products, with strong breaking ability, safe and reliable. Suitable for the requirements of mine power supply system.
5.2.2 Electrical schematic diagram
See attached picture
Precautions for installation, commissioning, operation and use
GKD(KYGD) mining general low-voltage switchgear before installation, should carefully check whether the shell and electrical components are damaged by collision during transportation, and whether the tightening bolts are loose. The technical documents and the factory certificate of the product shall be consistent with the product.
6.1 Location Installation
GKD(KYGD) mining general low-voltage switchgear is mainly used in no gas, no coal dust explosion risk of the roadway or chamber place. It should be installed vertically with a tilt Angle of no more than 5°.
6.2 Matters needing attention
6.2.1 Disconnect the power switch during long-term shutdown or maintenance.
6.2.2 Electrical parameters, specifications and models of relevant components shall not be changed during maintenance.
6.2.3 The product shall not be connected with other equipment without joint inspection.
6.2.4 This product does not specify the connection equipment, and it can be connected with other equipment only after passing the joint inspection.
6.2.5 Pay attention to prevent moisture and dust during maintenance.
7 Transportation and storage
7.1 Transportation
The PACKAGED GKD(KYGD) general low-voltage switchgear for mining can be applied to various transportation modes such as highway, railway, waterway and air transportation under the condition of avoiding sun, rain and snow direct immersion, falling and collision.
7.2 Storage
The packaged switchgear shall be stored in a well-ventilated warehouse with an altitude of 2000 meters, an ambient temperature of -5℃ ~ +40℃, an average relative humidity of no more than 95% (+20℃±5℃), no corrosive gas, and a storage period of 18 months. After the storage period, the switchgear shall be re-inspected according to the factory inspection content.
