Precision mechanical testing for SF6, GIS, vacuum, and oil circuit breakers — 12 channels, one integrated solution.

The MSGK-12GS is a high-precision, 12-channel switchgear characteristic tester engineered for comprehensive mechanical testing of circuit breakers. It simultaneously measures inherent opening and closing times across 12 fractures, in-phase and phase-to-phase synchronization, recloser timing, bounce characteristics, travel curves, and coil current waveforms.

Designed for field and factory use, the MSGK-12GS delivers lab-grade accuracy with super anti-interference capability — it performs reliably even when the bypass busbar of a 500 kV substation is live.

Why Choose the MSGK-12GS?

| Testing 12 fractures simultaneously | 12 independent timing channels (A1–C4) |

| High-voltage interference in live substations | Super anti-interference design, tested at 500 kV live bypass |

| Complex sensor installation | Compatible with rotation, linear, acceleration & photoelectric sensors |

| On-site reporting needs | Built-in thermal printer, prints data & graphs instantly |

| Data archiving & analysis | Real-time clock, mass storage, PC software for deep analysis |

| Different breaker speed definitions | Pre-loaded definitions + user-defined speed segments |

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Technical Specifications

Operating Environment

| Parameter | Specification |

Input Power ：220 V ± 10%, 50 Hz ± 10% |

Atmospheric Pressure ： 86–106 kPa

Temperature ： −10 °C to 40 °C

Humidity ≤ 80% RH

Safety Performance

Insulation Resistance ： > 2 MΩ

Dielectric Strength ： 1.5 kV power frequency, 1 minute, no flashover or arcing |

Basic Parameters

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Performance Characteristics

Time：Inherent opening/closing time of 12 fractures, in-phase & phase-to-phase synchronization |

Recloser： First closing time, first opening time, second closing time, metal short time, no-current time |

Bounce： Closing bounce time, bounce frequency, bounce process, bounce waveform, opening bounce amplitude |

Speed：Initial opening/closing speed, maximum speed, time-travel characteristic curve |

Travel： Total travel, opening distance, overtravel, overshoot, rebound amplitude |

Current：Opening & closing coil current values and waveforms |

Action Voltage:Automatic low-voltage action test, measures breaker action voltage value |

Key Advantages

Universal Compatibility — Suitable for mechanical characteristic testing of all models of SF6 switches, GIS combination devices, vacuum switches, and oil switches produced domestically and internationally.

Super Anti-Interference — Easily tests and accurately measures even when the bypass busbar of a 500 kV substation is live.

Flexible Sensor Options — Acceleration sensor (optional), linear sensor, rotation sensor; installation is extremely convenient and simple.

One-Button Operation— Once the switch is activated, all data and corresponding waveform diagrams are obtained automatically.

On-Board Storage & Real-Time Clock — Stores on-site test data with date and time stamps for easy archiving.

Large LCD Display — Wide temperature range, direct perspective, background light, full Chinese display, electronic contrast adjustment, power-off memory.

Built-in Printer— Quickly prints all data and graphs at any time.

PC Software— Data analysis and management software for online operation; output to needle, laser, or inkjet printers.

Customizable Speed Definitions— Speed selection and customization functions for just-in and just-out can be set as needed, applicable to any switch type from any manufacturer.

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