The QJR Series Flame-proof and Intrinsically-safe Vacuum AC Soft Starter for Mining Applications is the latest generation high-tech product developed and produced using BENSHAW's control technology. The device is suitable for underground coal mine pumps, fans, belt conveyors, armored face conveyors, air compressors, chain drive devices and other equipment transportation equipment with potential exposure to combustible gas or coal dust.
The microprocessor control unit uses original BENSHAW products imported from the United States and features the latest control algorithm. It is designed to provide a wide range of state-of-the-art soft start modes and motor protection features. This device features safe and reliable operation, easy maintenance, long service life, and outstanding start-up performance, which helps to eliminate mechanical and electrical shock, extending the service life of the equipment.
The starter is composed of an Flame-proof enclosure, a control and triggering board, high capacity thyristors, and intrinsically-safe components installed in the main chamber of the enclosure.
1. Rated Operating Voltage: AC1140V/AC660(+10% to -25%);
2. Rated Operating Current: 400A, 200A;
3. Maximum current overload multiplier during soft start: adjustable up to 800%;
4. Current Limit: 1～8Ie;
5. Starting Voltage: 0～100% Ue;
6. Cooling Mode: Natural cooling;
7. Soft start time: 1～60s;
|
S/N |
Product Name |
Product Model |
Rated Voltage |
Rated Current |
Product Dimensions (W x H x D) |
Product Weight |
|
1 |
Mining explosion-proof and intrinsically safe vacuum AC soft starter |
QJR2-200/1140(660) |
660/1140V |
200A |
W1014×H922×D656mm |
500kg |
|
2 |
Mining explosion-proof and intrinsically safe vacuum AC soft starter |
QJR2-400/1140(660) |
660/1140V |
400A |
||
|
3 |
Mining explosion-proof and intrinsically safe vacuum AC soft starter |
QJR2-200/1140(660)N |
660/1140V |
200A |
515kg |