Bokong Electric Co.,Ltd.-BOKR ELEC

Bokong Electric Co.,Ltd.-BOKR ELEC Your satisfaction is our reference! Try it once,trust it always! (Two largest ports in China.)

Established in 11/2011,Bokong Electric company is a professional manufacturer and exporter that is concerned with the design, development and production of MV&LV switchgear assemblies&MV components.We are located in Yueqing city in Zhejiang province, China, with convenient transportation access that It's about 200 KM from Ningbo port and 400 KM from Shanghai port. All of our products comply with

international quality standards and are greatly appreciated in a variety of different markets throughout the world. The enterprise with abundant capital and registered capital is 22.6 million USD.Covering an area of 11,870 square meters, we now have over 110 employees, An annual sales figure that exceeds 21.1 million USD and are currently exporting 20% of our production worldwide
Our well-equipped facilities and excellent quality control through all stages of production enables us to guarantee total customer satisfaction.Besides,we have received the CE certificate and ISO series certificate. As a result of our high quality products and outstanding customer service, we have gained a global sales network reaching Vietnam, Philippines, Malaysia, Russia, Pakistan, Saudi Arabia, UK, South Africa, Kenya, Zambia, Albania, Brazil, etc
If you are interested in any of our products or would like to discuss a custom order,please feel to contact us.We are looking forward to forming successful business relationships with new clients around the world in the near future. We warmly welcome friends from all over the world to visit BOKR ELEC and sincerely work together with you and the future toward a brilliant future.

The SCB18 dry-type transformer stands out for its ultra-high energy efficiency, meeting China's highest Tier 1 (NX1) ene...
13/08/2026

The SCB18 dry-type transformer stands out for its ultra-high energy efficiency, meeting China's highest Tier 1 (NX1) energy efficiency standard (GB 20052-2020) . It utilizes advanced materials like 0.18mm ultra-low loss high-permeability silicon steel, reducing no-load losses by 20% compared to previous models.
Key highlights include low noise (reduced by up to 10dB), epoxy resin casting for fire safety, pollution-free operation, and excellent overload capability . Typical losses for a 1000kVA unit are approximately 1,020W (no-load) and 7,885W (load), though values vary by capacity.
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

Low-Voltage Capacitor Bank – Ready for Shipment!We are pleased to announce that a complete set of low-voltage capacitor ...
06/08/2026

Low-Voltage Capacitor Bank – Ready for Shipment!
We are pleased to announce that a complete set of low-voltage capacitor banks has successfully passed all factory tests and is now packed and ready for dispatch. Each unit features high-quality power capacitors, advanced reactive power controllers, and robust protection systems to ensure stable power factor correction and harmonic filtering.
We sincerely thank our valued customers for years of trust and continued partnership. Your support drives us to maintain strict quality standards and on-time delivery.
If you have upcoming capacitor bank projects – whether for upgrading existing systems or new installations – please reach out to us. Our engineering team offers tailored solutions to meet your specific requirements. Contact us today for a competitive quote and reliable delivery!
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

Urgent Notice – Production Slot Available!We have just completed a batch of eight (8) medium-voltage switchgear units, f...
04/08/2026

Urgent Notice – Production Slot Available!
We have just completed a batch of eight (8) medium-voltage switchgear units, fully tested and ready for shipment. Our production lines are running at full capacity, but we have reserved a limited window to take on new orders without affecting your original delivery schedule.
If you have pending requirements, now is the time to act. We can still guarantee your requested lead time, provided we receive your order confirmation within the next few days. Our workshop is operating in two shifts to maintain efficiency, and our procurement team has secured ample stock of key components such as circuit breakers, CTs, VTs, and copper busbars to avoid any material delays.
Every unit will undergo our strict factory acceptance testing protocol – insulation, withstand voltage, circuit resistance, mechanical interlock verification, and protection relay calibration – ensuring quality is never compromised despite the busy schedule.
Don't wait – secure your production slot today! Contact our sales team immediately for a prompt quotation and delivery commitment. We are ready to support your project!
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

Solid insulated switchgear offers distinct advantages in extreme climates due to its fully encapsulated design, which el...
29/07/2026

Solid insulated switchgear offers distinct advantages in extreme climates due to its fully encapsulated design, which eliminates the performance issues associated with gas-insulated alternatives .
In extremely low temperatures, the absence of SF6 gas prevents liquefaction and pressure drops that can compromise insulation and arc-extinguishing capabilities, ensuring reliable operation down to -50°C . For high-altitude applications, the sealed solid insulation is unaffected by lower atmospheric pressure, removing the risk of gas leakage and the need for pressure adjustments, and is proven reliable at elevations up to 5500 meters . Furthermore, its sealed and shielded construction with IP67 protection provides robust resistance against humidity, salt fog, dust, and sandstorms, preventing corrosion, contamination, and the ingress of foreign particles that can cause failures in other designs .
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

After-Sales Service – Installation SupportUpon product arrival at your site, our after-sales team initiates real‑time vi...
23/07/2026

After-Sales Service – Installation Support
Upon product arrival at your site, our after-sales team initiates real‑time video call support to guide you through every step of installation and commissioning.
We begin by reviewing the site layout and foundation requirements, then walk you through cabinet positioning, busbar connection, and cable termination in sequence. Our engineers verify torque values on all bolted joints, check clearances between phases, and confirm grounding continuity before any energization.
During the pre‑power‑on phase, we conduct insulation resistance checks and secondary wiring verification together via shared screen and live video. We simulate protection relay operations and interlock sequences to ensure everything functions correctly. Finally, we coordinate the energization procedure step by step, monitoring meter readings and indicator status in real time. Our goal is to make your installation smooth, safe, and successful. We are always here to help!
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

The Importance of Switchgear Factory Acceptance TestingFactory acceptance testing is the final quality checkpoint before...
21/07/2026

The Importance of Switchgear Factory Acceptance Testing
Factory acceptance testing is the final quality checkpoint before switchgear is delivered to the customer. Its core value is reflected in the following aspects:
Ensuring power system safety: Through key tests such as insulation and withstand voltage, it prevents short circuits, equipment damage, and even grid failures caused by inadequate insulation, poor contact, or mechanical defects.
Verifying product compliance: Ensures that each unit meets national and industry standards (e.g., GB 3906, IEC 62271-200) and satisfies design and customer requirements.
Eliminating manufacturing defects: Detects hidden issues such as wiring errors, improper component installation, and mechanical jamming during assembly.
Reducing operation and maintenance costs: Prevents on-site rework, repairs, and power outages caused by product defects, thereby extending equipment service life.
It is important to note that factory acceptance tests must be performed on every single unit before shipment, whereas type tests are conducted only once during product development and qualification.
We strictly adhere to the factory inspection process and provide detailed inspection reports to ensure the quality and safety of our products.
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

Fault Response and Speed of RecloserThe core of recloser performance lies in its rapid trip-and-reclose cycle. Field tes...
16/07/2026

Fault Response and Speed of Recloser
The core of recloser performance lies in its rapid trip-and-reclose cycle. Field tests show that modern vacuum reclosers can complete an average cycle in just 0.9 to 1.3 seconds. Upon detecting a fault, the recloser trips open. A typical sequence involves a fast trip followed by a short reclose interval (e.g., 0.2-0.5 seconds), with subsequent operations having longer delays. About 80% of distribution faults are temporary (e.g., lightning or windblown debris), and the recloser clears them automatically, often resulting in only a brief flicker of lights. If the fault persists after a preset number of attempts—usually three or four—the recloser locks open, isolating the permanent fault and signaling the need for crew intervention.
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

A pad-mounted transformer, commonly known as a box substation, is a compact, factory-assembled unit that transforms medi...
14/07/2026

A pad-mounted transformer, commonly known as a box substation, is a compact, factory-assembled unit that transforms medium voltage (e.g., 10–35kV) into low voltage (e.g., 400V) for end-use distribution. Its working principle is straightforward: incoming MV power enters the high-voltage compartment, passes through a load-break switch and fuses, then steps down via the transformer core, and finally exits through the low-voltage compartment to supply loads.
The main components include:
HV compartment,
Transformer compartment
LV compartment
Enclosure(a weatherproof, lockable steel casing)
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

Quality Assured, Ready to Ship!We’ve completed production with strict quality control—every piece meets top standards. N...
09/07/2026

Quality Assured, Ready to Ship!
We’ve completed production with strict quality control—every piece meets top standards. Now packed and prepared for fast delivery.
Thank you, dear customers, for your trust and partnership. We warmly welcome new inquiries and business discussions. Let’s grow together—contact us today!
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

A 35kV SF6 circuit breaker is a critical device for protecting medium-voltage power systems . It uses sulfur hexafluorid...
07/07/2026

A 35kV SF6 circuit breaker is a critical device for protecting medium-voltage power systems .
It uses sulfur hexafluoride gas for superior insulation and arc quenching, enabling a compact design .
These breakers are suitable for frequent operations and have long maintenance intervals . They effectively switch load and fault currents in substations and industrial settings . An integrated density monitor provides a low-pressure alarm and lockout to ensure safe operation .
+86 153 25059 179
+86 151 677 40056
www.bokrelec.com

Address

No. 191, Wei Shiliu Road, Yueqing Economic Development Zone
Yueqing
325600

Opening Hours

Monday 08:00 - 17:30
Tuesday 08:00 - 17:30
Wednesday 08:00 - 17:30
Thursday 08:00 - 17:30
Friday 08:00 - 17:30
Saturday 08:00 - 17:30

Telephone

+8615167740056

Website

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