Mining explosion-proof vacuum feeder switch is for coal mine use.
1.Dimensions: 780x570x820mm
2. weight: 280KGS
Specifications
Mining explosion-proof vacuum feeder switch is for coal mine use.
1.Dimensions: 780x570x820mm
2. weight: 280KGS
KBZ11-400/1140
KBZ11-200/1140(660)
useKBZ11-400/1140, KBZ11-200/1140(660) Mining explosion-proof vacuum feeder switch is used in coal mines containing explosive gas (methane) and coal dust. In the power supply system with AC 50Hz, voltage 1140V (660V) and rated current of under 400A (200A), it can be used as master switch or sub-switches in the first or the end slip distribution.
function featuresthe switch is based on the original DW80-350 air switch. The switch, inheriting the advantages of the original air feeder switch of small size, light weight, convenient and flexible switch, adds the three-phase symmetry leakage protections of overload, short circuit, leakage atresia and total detection delay, and slective leakage protection. The protection device is a intelligent protector with a 16-bit single-chip as its core. There are electric closing switch and electric sub-gate. Its main function and features:
LCD display | Communication network function |
Three tier election leakage protection | Wind power and gas power atresia and protection |
Electrical degrees measurement | Fault memory and query |
Functions opening and closing | Testing functions for site analog |
Parameters fine-tuning and correction | Current, voltage, fault parameters, real-time display |
Leakage atresia | Long-range short-circuit protection |
Overload protection | Clock display |
main technical parameters
Rated voltage | 1140V(660V) |
Rated current | 400A 200A |
Ultimate breaking capacity | 7.5KA |
Rated working system | Long-term |
Operation | Electric closing gate, sub-gate |
Dimensions | 780mmx570mmx820mm |
Weight | 280kgs |
