KRUВ-6 is an explosion-proof 6(10) kV switchgear unit designed for mines, intended for receiving, distributing electrical power and controlling equipment in methane and dust hazardous environments.
KRUВ-6 is a complete explosion-proof switchgear designed for reliable reception and distribution of electrical energy at a voltage of 6(10) kV and a frequency of 50 Hz. The equipment is used in underground coal mine workings, including areas hazardous due to methane gas and coal dust, where increased safety and stable power supply are required. The unit effectively provides protection for networks with an isolated neutral and enables control of underground electrical receivers and process equipment.
The KRUВ-6 switchgear is manufactured in a flameproof enclosure and equipped with intrinsically safe remote control circuits, making it an optimal solution for operation in harsh and explosive environments. The high level of explosion protection is confirmed by the marking PB Ex db [ia Ma] Mb X, in compliance with modern industrial safety standards.
The KRUВ-6 design provides an IP54 degree of protection according to GOST 14254-2015, ensuring reliable protection against dust and moisture. The unit includes the KRUВ-6 cabinet, cable glands, blanking plugs for unused openings, and a remote control panel. This modular design allows easy configuration of both single and group switchgear systems depending on customer requirements.
KRUВ-6 is widely used in the mining industry due to its reliability, safety, and adaptability to harsh operating conditions, ensuring stable operation of electrical equipment and a high level of personnel protection.
| KRUВ-6 switchgear cabinets | Item code |
|---|---|
| Incoming | V |
| Sectional | V |
| Outgoing feeders with built-in zero-sequence current transformer | O |
| Items connected to the cabinet: | |
| Cable gland without compound (for cable up to Ø 48 mm) | 1 |
| Cable gland without compound (for cable Ø 48...70 mm) | 2 |
| Cable gland without compound (for cable Ø 70...90 mm) | 3 |
| Cable gland without compound (for cable Ø 48...70 mm) with additional entry for control cable (Ø16-30 mm) | 4 |
| Cable gland without compound (for cable Ø 70...90 mm) with additional entry for control cable (Ø16-30 mm) | 5 |
| Straight cable gland without compound (for cable Ø 48...70 mm) | 6 |
| Straight cable gland without compound (for cable Ø 70...90 mm) | 7 |
| Blanking cover for unused cabinet openings | 8 |
| Main parameters and characteristics | Value | |
|---|---|---|
| Rated voltage of main circuits, kV | 6 | 6/10 |
| Maximum voltage of main circuits, kV | 7.2 | 12 |
| Rated voltage of auxiliary circuits, V | 36, 127, 220 | |
| Rated current, A | ||
| - busbars | 630 | |
| - incoming and sectional switchgear cabinets | 630 | |
| - outgoing feeder cabinets | 630 | |
| - switching module | 1000 | |
| Power supply frequency, Hz | 50 | |
| Rated breaking current, kA, not less than | 25 | |
| Short-time withstand current (3 s), kA | 20 | |
| Peak withstand current (amplitude value), kA | 25 | |
| Maximum short-circuit through current, kA | 51 | |
| Mechanical endurance, operating cycles "on-off" | ||
| - circuit breaker | 50000 | |
| - disconnector | 2000 | |
| Switching endurance (electrical durability), cycles "on-off" at rated current, not less than | 50000 | |
| Permissible number of short-circuit interruptions without inspection or repair at 100 MVA breaking capacity | 10 | |
| Intrinsic opening time of circuit breaker, ms, not more than | 10 | |
| Intrinsic closing time of circuit breaker, ms, not more than | 35 | |
| Total breaking time, ms, not more than | 30 | |
| Minimum electrical clearances, mm | 60 | 100 |
| Degree of enclosure protection according to GOST 14254-2015, not lower than | IP54 | |
| Upper operating ambient temperature, °C | +35 | |
| Lower operating ambient temperature, °C | -10 | |
| Weight, kg, not more than* | 1200 | |
| Overall dimensions, mm, not more than (length, width, height) | 1380x1100x1430 | |
| Explosion protection marking of the cabinet | PB Ex db [iaMa]Mb X | |
Our production
The production branch of JSC "Novamash" is located in the metallurgical center of the Sverdlovsk region, the city of Nizhny Tagil.
The company's production facilities are equipped with modern equipment of domestic and European manufacturers, which makes it possible to manufacture structures for various purposes according to the highest requirements.
To purchase a product you like, you need to order it. There are several scenarios for how this can be done.
- Choose the product you like and click the "Order" button. When placing an order, fill out the form. Enter information in the fields: full name, phone number and e-mail. Then the manager will call you back to confirm your consent to make the purchase.
- Select the product you like and click the "Add to cart" button. Then go to the cart and click "Checkout". Then fill out the form with contact information and send an application. The manager will contact you for further discussion.
- Go to the product card and click "Buy in one click". After clicking, you need to fill out the form and send an application. The manager will contact you for further discussion.
We work with individuals and legal entities. And we provide two payment options at once.
- Cash. You sign the shipping documents, pay in cash, receive the goods and the check.
- Cashless payments. We accept Visa and MasterCard. Available with courier delivery.
We can deliver your order with our own resources, provided that you are in the city. Or through 4 delivery options:
- Courier delivery. Courier delivery works from 9:00 to 19:00. When the goods arrive at the warehouse, the courier service will contact to clarify the details. The specialist will offer to choose a convenient delivery time and specify the address.
- Pickup from the store. To receive an order, contact an employee at the checkout area and tell them the number.
- We cooperate with postamats. Shelf life is 3 days.
- We provide postal delivery via Russian post. When the order arrives at the department, a notification of the parcel will be sent to your address. You can open the box yourself only after paying for the order.
An additional tab for posting information about goods, delivery or any other important content. It will help you answer the buyer's questions and dispel his doubts about the purchase. Use it as you see fit.
You can remove it or return it back by changing one checkbox in the component settings. Very comfortably.