Full project customization
Custom manufacturing to individual dimensions, drawings, or specification sheets. Geometry precisely matches installation conditions.
ShMP flexible busbars and KShM, KShA compensators
Custom geometry for installation conditions, manufactured to drawings
Key features
Vibration and deformation damping
Flexible structure absorbs transformer vibrations and compensates for thermal expansion of busbar trunking.
High electrical conductivity
M1 copper with 99.9% Cu content in SHMP and KSHM; electrical-grade aluminum in KSHA. Minimal contact losses.
Easy installation and maintenance
Braided busbars tolerate misalignment, compensators provide stable contact surfaces. Reduced LV switchgear assembly time.
Flexible connections in power supply systems
Rigid connection of a transformer to busbar trunking or MDB creates risk of failure due to vibrations and thermal expansion. Flexible elements—SHMP braided busbars, KSHM copper compensators, and KSHA aluminum compensators—solve these challenges, ensuring reliable contact and long assembly service life.
Standard rigid solutions
- Rigid copper or aluminum busbar—transmits vibrations and thermal stress to contacts.
- Cable jumpers—require additional fasteners, labor-intensive in confined spaces.
METAENERGY Solution
- SHMP — braided copper busbar with crimped connection pads, works in bending and torsion, dampens vibrations.
- KSHM and KSHA compensators — solid contact zones (diffusion or argon welding), compensate thermal deformations, maintain stable clamping force.
Where and Why Flexible Busbars and Compensators Are Used
Main connection points include transformers, busbar trunking systems, and main distribution boards. Here it is essential to eliminate mechanical stress transfer and ensure compensation for thermal expansion of current-carrying parts.
When terminal alignment is off, in confined spaces, or when mounting planes do not match, the SHMP braided busbar allows connection without complex adapter structures. KSHM and KSHA compensators are indispensable in busbar routes where temperature cycles cause linear displacement.
Below are three product groups covering the full range of flexible current connection tasks in low-voltage and medium-voltage systems.
Products
Each series is manufactured to technical specifications and can be supplied with insulation, tinning, and in various configurations per customer drawings.
SHMP — braided copper busbar (bare and PVC-insulated up to 1 kV). KSHM — copper compensator with diffusion-welded plates. KSHA — aluminum compensator with argon welding.
series 82 (SHMP/SHMPI)
Braided Copper Busbar SHMP (SHMPI)
Flexible assembly of tinned copper conductors 0.2 mm thick, braided into a single bundle with crimped contact pads. For connecting transformers and busbar trunking in different planes, including misaligned axes.
- High flexibility and vibration resistance — allows repeated bending and twisting without conductor damage.
- Conductor: braided AMG-T wire, M0b copper (99.9% Cu), tinned pads.
- Insulation optional: black PVC, 2±0.2 mm thick, test voltage 2.2 kV, dielectric strength >20 kV/mm.
- Cross-section from 16 to 1,500 mm², developed length up to 10,000 mm, pad width 20–125 mm.
Designation: SHMP S/P L (pad1_length/pad2_length). Pads are crimped by default; adapter plates can be ordered for specific connection types.
series 83 (KSHM, KSHMI, KSHMl)
Copper busbar compensator KSHM
Set of copper plates from 0.2 mm thick, joined into a monolithic contact zone by diffusion welding. Solid copper contact pads ensure elasticity and stable clamping.
- Monolithic pads without soldering or riveting — molecular bonding of plates; reduced contact resistance.
- Compensates longitudinal thermal expansion, acting as an elastic element in busbar trunking lines.
- M1 copper; available with insulation (I) and tinned pads (t).
- Width up to 120 mm (up to 160 mm to order), thickness up to 10 mm (up to 20 mm to order), 8 standard configuration types per catalog + custom bends.
Article number structure: compensator type (1–9), thickness×width, length L, height h, radius r, pad lengths. Example: KSHM 4 10×120 L500 h65 r40 (120/120).
series 84 (KSHA, KSHAI, KSHAl)
Aluminum busbar compensator KSHA
Set of aluminum plates from 0.2 mm thick, argon-welded to aluminum contact pads. Effective thermal expansion compensation in aluminum busbar trunking systems.
- 2 mm aluminum strip as plate base; pads made of aluminum busbar.
- Argon welding ensures strong permanent connection without reducing conductivity.
- Designed for connecting transformers to aluminum busbar trunking conductors and for busbar bridges in switchgear.
- Standard width up to 120 mm, thickness up to 10 mm; manufactured in the same 8 configurations and per customer drawings.
Designation similar to KSHM: type, cross-section, length, height, radius and pads. Insulation (I) and tinning (t) of contact zones specified when required.
Sizes and selection
Standard catalog versions; non-standard cross-sections and dimensions manufactured per project. For KSHM and KSHA geometry is defined by questionnaire or drawing.
Main sizes of flexible busbar connectors/insulated flexible busbar connectors (series 82)
| Designation | Cross-section, mm² | Contact pad width, mm |
|---|---|---|
| SHMP/SHMPI 25/020 | 25 | 20 |
| SHMP/SHMPI 50/020 | 50 | 20 |
| SHMP/SHMPI 50/030 | 50 | 30 |
| SHMP/SHMPI 75/040 | 75 | 40 |
| SHMP/SHMPI 100/030 | 100 | 30 |
| SHMP/SHMPI 100/040 | 100 | 40 |
| SHMP/SHMPI 150/040 | 150 | 40 |
| SHMP/SHMPI 150/050 | 150 | 50 |
| SHMP/SHMPI 200/050 | 200 | 50 |
| SHMP/SHMPI 250/050 | 250 | 50 |
| SHMP/SHMPI 300/060 | 300 | 60 |
| SHMP/SHMPI 400/080 | 400 | 80 |
| SHMP/SHMPI 500/100 | 500 | 100 |
| SHMP/SHMPI 600/100 | 600 | 100 |
| SHMP/SHMPI 800/100 | 800 | 100 |
| SHMP/SHMPI 1000/100 | 1000 | 100 |
| SHMP/SHMPI 1200/100 | 1200 | 100 |
| SHMP/SHMPI 1200/120 | 1200 | 120 |
| SHMP/SHMPI 1500/125 | 1500 | 125 |
General range of KSHM and KSHA
| Parameter | Value |
|---|---|
| Configuration types | 1–9 (8 standard, plus custom to drawing) |
| Standard width | up to 120 mm (up to 160 mm on request) |
| Standard thickness | up to 10 mm (up to 20 mm on request) |
| Length L (developed) | 90–1000 mm in 5 mm increments (for type 2, additional dimension L2 is specified) |
| Bend height h | 15–400 mm in 1 mm increments (when required, depending on type) |
| Bending radius r | determined by design; specified in designation if required |
| Contact pad length | 20–130 mm in 5 mm increments (two pads: pad 1 / pad 2) |
Key Parameter Comparison
The choice between SHMP, KSHM and KSHA is determined by the material, required installation flexibility and type of forces to be compensated.
| Parameter | SHMP (copper braided) | KSHM (copper compensator) | KSHA (aluminum compensator) |
|---|---|---|---|
| Conductor material | Copper M0b (99.9% Cu), AMG-T wire | M1 copper, plates from 0.2 mm thick | Electrical-grade aluminum, tape 2 mm thick |
| Contact zone formation method | Crimping with tinned copper ferrule | Diffusion welding (molecular-level monolith) | Argon welding of aluminum plates to mounting pad |
| Flexibility | High: allows bending and twisting along entire length | Elastic: compensates for longitudinal and angular displacement while maintaining shape | Elastic: compensates for longitudinal and angular displacement in aluminum busbar trunking systems |
| Operating environment | Transformer connections, moving parts, misaligned terminals | Busbar trunking systems, high thermal cycling (heating-cooling) | Aluminum busbar trunking, transformer connection to aluminum busbars |
| Maximum cross-section / size | Up to 1,500 mm² | Width up to 120 mm (160 mm on request), thickness up to 20 mm | Width up to 120 mm (160 mm on request), thickness up to 20 mm |
| Insulation (option) | PVC 2 mm, 1 kV, black (SHMPI) | Insulated version available (I) | Insulated version available (I) |
| Tinning | Conductors tinned, contact pads tinned (standard) | Contacts can be tinned (t) | Contacts can be tinned (t) |
We work from specification sheets and drawings
All three series are manufactured for specific projects. METAENERGY engineering team assists in selecting the configuration based on drawings or completed specification sheets, ensuring precise compliance with installation requirements.
Advantages
Manufacturing and design features ensuring durability and ease of application.
Geometry and load control
Every batch is inspected for geometry, current load, and mechanical strength. CNC machining ensures shape repeatability.
Engineering support
We assist in adapting drawings when project changes occur, select configurations based on specification sheets; sketches provided upon agreement with engineering service.
Local supply without import dependence
Manufacturing in Russia reduces logistics chains and ensures predictable delivery according to agreed schedule.
Additional for designers
Geometry in 8 configurations
Eight standard spatial shapes are available for KSHM and KSHA; custom bends can be manufactured to drawings.
Tinning and insulation
Contact pads can be supplied tinned; optional black PVC insulation rated up to 1 kV.
Connection in confined spaces
Braided busbar SHMP accommodates misalignment up to several degrees without additional adapters.
Documentation and specifications
Products are manufactured to MPRC.68651.002 TU (SHMP), MPRC.685527.004 TU (SHMPI), MPRC 685520.004 TU (KSHM, KSHA). Passport and test reports are provided.
Place in METAENERGY product range
Flexible connectors and compensators are used between power transformers, busbar trunking systems, and switchgear.
SHMP cross-sections
16–1,500 mm²
Wide range allows selection of busbars for any rated current from 100 A to several kiloamperes.
Compensators: width and thickness
up to 120 mm / up to 10 mm (expandable to 160 and 20 mm)
Standard sizes cover most applications; reinforced versions are manufactured to order.
Developed length
up to 10,000 mm (SHMP), up to 1,000 mm (KSHM/KSHA)
Long lengths in SHMP simplify routing; compensators are optimized for short expansion joints.