Self-produced components for switchgear builders and utilities — supplied loose or fitted inside our own assemblies.
Surge arresters, instrument transformers and cable accessories are our self-produced component lines. Panel builders, utilities and contractors buy them separately from us — and we also fit them inside our own switchgear and substations.
Because we make the magnetic cores, windings, resin castings and insulation parts ourselves, we can supply non-standard ratios, special accuracy classes and custom mounting dimensions without waiting for a third party.
Metal-oxide varistor stacks in a sealed housing — the simplest and most effective protection against switching and lightning overvoltages.
| Model | System voltage | Rated voltage Ur | Nominal discharge current | Residual voltage | Typical use |
|---|---|---|---|---|---|
| HY1.5W-0.5/2.6 | 0.22–0.4 kV | 0.5 kV | 1.5 kA | 2.6 kV | LV distribution protection |
| HY5WS-17/50 | 10 kV | 17 kV | 5 kA | 50 kV | Distribution class, pole-mounted and RMU, polymer housing |
| YH5WS-17/50 | 10 kV | 17 kV | 5 kA | 50 kV | Same as above, optional disconnector base and counter |
| HY5WZ-51/134 | 35 kV | 51 kV | 5 kA | 134 kV | Station class, 35 kV substations and lines |
| YH10W-108/281 | 110 kV | 108 kV | 10 kA | 281 kV | Station class, substation protection |
| YH10W-204/532 | 220 kV | 204 kV | 10 kA | 532 kV | Station class, transmission substations |
Housing options: silicone rubber (polymer) or porcelain. Disconnector bases, surge counters and insulated brackets available. Standards: IEC 60099-4, GB 11032.
Cast-resin insulated instrument transformers for metering and protection, 0.66 kV to 40.5 kV.
| Model | Type | Voltage | Ratio | Accuracy class | Typical application |
|---|---|---|---|---|---|
| LMZ1-0.66 | LV busbar / through type | 0.66 kV | 5–3000 / 5 A | 0.5 / 1.0 | LV metering, MCC panels |
| LMK1-0.66 | LV split-core / ring type | 0.66 kV | 30–2000 / 5 A | 0.5 / 1.0 | Retrofit metering without cable disconnection |
| LZZBJ9-10 | Indoor cast resin, high accuracy | 10 kV | 5–1500 / 5 A | 0.5 / 5P10 / 10P10 | Switchgear metering + protection, two cores |
| LZZBJ9-35 | Indoor cast resin | 35 kV | 15–1500 / 5 A | 0.5 / 5P20 | 35 kV switchgear |
| LB6-110 / LB7-220 | Oil-immersed, outdoor | 110 / 220 kV | To specification | 0.2S / 5P30 | Substation metering and protection |
| Model | Type | Voltage | Ratio | Accuracy class | Typical application |
|---|---|---|---|---|---|
| JDZ-10 | Indoor single-phase cast resin | 10 kV | 10 / 0.1 kV | 0.5 / 3 | Metering and voltage monitoring |
| JDZJ-10 | Indoor earthed-star set (3 units) | 10 kV | 10/√3 / 0.1/√3 / 0.1/3 kV | 0.5 / 3P | Three-phase metering with earth-fault winding |
| JDZX9-10 | Indoor single-phase, earthed type | 10 kV | 10/√3 / 0.1/√3 | 0.5 / 3P | Switchgear voltage measurement, residual voltage |
| JDZX9-35 | Indoor single-phase | 35 kV | 35/√3 / 0.1/√3 | 0.5 / 3P | 35 kV switchgear |
| JDZ-35 / JDJ-35 | Outdoor / oil-immersed | 35 kV | 35 / 0.1 kV | 0.5 / 3 | Outdoor substations |
Standards: IEC 61869-2 (current) and IEC 61869-3 (voltage). Non-standard ratios, dual cores and special burden ratings available on request — send the required ratio, class and burden.
Cold-shrink and heat-shrink accessories for XLPE insulated cables, 1 kV to 35 kV, single-core and three-core.
| Product | Technology | Voltage | Core / application | Cable size range |
|---|---|---|---|---|
| Indoor termination | Cold-shrink | 10 kV | Three-core, switchgear & panel entry | 25–400 mm² |
| Outdoor termination | Cold-shrink | 10 kV | Three-core, pole & outdoor box entry | 25–400 mm² |
| Indoor / outdoor termination | Heat-shrink | 10 kV | Three-core, economical option | 25–400 mm² |
| Single-core termination | Cold-shrink | 35 kV | Single-core, substations | 50–630 mm² |
| Three-core termination | Cold-shrink | 35 kV | Three-core, substations | 50–400 mm² |
| Straight joint | Cold-shrink / heat-shrink | 1–35 kV | Single & three-core cable repair / extension | 25–630 mm² |
| LV termination & lug kit | Heat-shrink | 1 kV | LV cables, with or without lugs | 1.5–400 mm² |
Silicone rubber body pre-expanded on a removable core — installs without heat or open flame, ideal for confined manholes and hazardous areas. Better long-term elasticity and moisture sealing.
Shrunk with a torch on site. Lower cost, widely available, and well suited to dry, well-ventilated locations and to LV work.
Termination body, stress control or stress cone, sealing compound, insulating and conductive tubing, earth connection, lugs and installation instructions — per core, per kit.
Standards: IEC 60502-4, GB/T 12706. Tell us the cable type, voltage, core configuration, size and installation environment (indoor / outdoor / buried) so we can pick the right kit.
Send a list of models and quantities — or just the ratios, classes and cable sizes you need and we will propose the equivalents. Mixed containers welcome.
