Smart Ring Main Unit
JGSIS-12 solid insulated ring network switchgear
This product is a 640kW split DC charging stack that supports 6 outputs and can be configured with three dual output interfaces or six single output interface charging terminals. The maximum power can reach 640kW. It adopts a split structure design, with centralized charging power configuration and multiple charging ports sharing charging power. It has the ability to cooperatively control multiple charging ports to charge according to multiple charging strategies.
It can be widely used for metering single-phase DC active energy, especially for charging metering of DC chargers. Suitable for large public charging stations, urban fast-charging networks, and charging of buses and logistics vehicles, meeting the rapid charging needs of large-scale electric vehicles.
Product Highlights
Convenient maintenance design: the low-voltage compartment access panel supports external replacement, and the instrument door is designed to prevent sagging.
Can be equipped with one or more switches, flexible and diverse wiring methods, and a large number of branch circuits.
Compact structure and high corrosion resistance.
Real-time measurement and display of key parameters such as voltage, current (including neutral line), power, and power factor.
In case of failure, the LCD screen locks the alarm code and illuminates a warning light.
Technical parameters
| Item | Unit Cabinet C | Unit Cabinet F | Unit Cabinet V | |
| Load Switch Cabinet | Combined Electrical Appliance Cabinet | Circuit Breaker Cabinet | ||
| Rated Voltage (kV) | 12 | 12 | 12 | |
| Rated Current (A) | 630 | 125 | 630 | |
| Rated Frequency (Hz) | 50 | 50 | 50 | |
| 1min Power Frequency Withstand Voltage (kV) | Phase-to-phase, Phase-to-ground | 42 | 42 | 42 |
| Between Breaks | 48 | 48 | 48 | |
| Lightning Impulse Withstand Voltage (kV) | Phase-to-phase, Phase-to-ground | 75 | 75 | 75 |
| Between Breaks | 85 | 85 | 85 | |
| Partial Discharge 1.1Ur (pC) | 20 | 20 | 20 | |
| Rated Short-time Withstand Current (kA) | 20/4 | - | 20/4 | |
| Rated Peak Withstand Current (kA) | 50 | - | 50 | |
| Rated Short-circuit Breaking Current (kA) | - | 31.5 | 20 (30 Times) | |
| Rated Short-circuit Making Current (kA) | 50 | 80 | 50 | |
| Rated Capacitive Current Switching Test | Cable Charging Current (A) | 10 | 10 | 25 |
| Overhead Line Charging Current (A) | 1 | 1 | 10 | |
| Rated Active Load Current Switching Times (Times) | 100 | - | - | |
| Transfer Current (A) | - | 3150 | - | |
| Internal Arc Test | Cable Compartment, Switch Compartment: IAC Class AFLR, 20kA, 50kA (Peak), 0.5s | |||
| Mechanical Life (Times) | Circuit Breaker | - | - | 10000 |
| Load Switch | 10000 | 10000 | - | |
| Isolating Switch / Earthing Switch | 3000/3000 | 3000/3000 | 3000/3000 | |
| Protection Class | Enclosure | IP4X | IP4X | IP4X |
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