Product Overview & Application Scenarios

The HMGY-800 high and low voltage switchgear energized test bench is designed for factory commissioning of high and low voltage switchgear by manufacturers. It can also be used to replace DC operating power supplies within substations during maintenance and in other applications requiring a DC power source. In power plants, substations, switchgear factories, and other facilities, primary and secondary equipment are crucial. Because these two devices form an integral whole, only when both are in good condition can safe power production be guaranteed. Secondary equipment monitors, controls, regulates, and protects the operating conditions of primary equipment, providing operators with signals necessary for operating conditions or production control. Failures in the secondary circuit often disrupt or affect the normal operation of electrical equipment. Proper use and management of secondary circuit electrical equipment is crucial for ensuring safe power production. This test bench is designed and manufactured by our company based on the requirements for secondary circuit testing and testing, taking into account the actual needs of users. Featuring comprehensive functionality, a compact size, an attractive appearance, and ease of transport, it is ideal for testing various parameters of secondary equipment.

Applications:

1. Manufacturing Quality Control (Factory Acceptance Test - FAT):Every new switchgear cabinet is tested on the bench before it leaves the factory.
2.Commissioning of New Electrical Substations or Plants: Before a new factory, data center, or power substation is energized, all installed switchgear is tested.

3.Preventive Maintenance and Troubleshooting: After a set period of service (e.g., annually), switchgear is taken offline and tested to ensure it will still perform correctly during a fault.

4.Repair and Refurbishment Verification: After a component like a circuit breaker or relay is repaired or replaced, the entire assembly is tested to guarantee it meets original specifications.

Features & Advantages

1.Suitable for various scenarios such as factory commissioning of high/low voltage switchgear and replacing DC operating power supplies during substation maintenance.
2.Small size, light weight, easy to transport and move, making it suitable for use at different work sites.
3.Specifically designed and manufactured based on secondary circuit testing requirements and actual user needs, ensuring high relevance.
4.Ensures the safe and stable operation of primary equipment by verifying the accuracy and reliability of secondary equipment parameters.
5.Suitable for various power facilities such as power plants,substations, and switchgear factories.
6.Takes full account of actual user needs,featuring an attractive appearance and user-friendly operation.

Operating Conditions

Temperature:Typically 0°C to 40°C
Humidity: < 80% RH (non-condensing)
Altitude: < 1000 meters
Site Condition:Clean, dry, well-ventilated, and stable floor. Free from dust, corrosive gases, and strong vibration.

Additional Features

1. Integrated Testing Capabilities:
Primary Injection Test: Applies high current (up to 2000A or more) to test the entire current path, including circuit breakers and busbars.
Secondary Injection Test: Simulates fault conditions to calibrate and verify protection relays (overcurrent, earth fault) without high power.
Contact Resistance Measurement: Uses a micro-ohmmeter to find loose or worn connections.
Circuit Breaker Timing Analysis: Measures how fast the breaker opens and closes.
Dielectric Withstand (Hi-Pot) Test: Checks the strength of insulation.

2.Advanced Safety & Protection Systems:
Emergency Stop Buttons: Instantly cut power in case of danger.
Automatic Discharge: Safely discharges stored electrical energy after a test.
Safety Interlocks: Prevents operation if a safety guard is open or a connection is wrong.
Over-current & Over-voltage Protection: Shields the test bench from damage.

3. Automated Operation & User-Friendly Interface:
Touchscreen HMI (Human-Machine Interface): Allows easy setup and control of tests.
Pre-programmed Test Modules: Operators can select a test ("CB Timing") with built-in parameters.
Automatic Sequencing: Runs a series of tests ( close-open-time-resistance) automatically.

4. Data Management and Reporting:
Internal Data Storage: Saves test results for many units.
USB/Network Export: Allows data transfer to a computer.
Automated Report Generation: Creates standardized test certificates (PDF reports) for quality records and compliance.

Maintenance FAQs

Q: What is this test bench used for?

A: It's a specialized station used to perform a full "health check" on switchgear cabinets beforethey are connected to the live power grid. It simulates electrical conditions to verify that every component (circuit breakers, relays, protection systems) works correctly and safely.

Q: Where is it typically used?

Manufacturing Plants: For quality control before shipping new switchgear.

Commissioning Sites: To verify installation is correct before energizing a new substation or factory.

Maintenance Workshops: For periodic safety checks and after repairs.

Q: What are the main tests it performs?

Primary Injection: Tests the main current path with high current to ensure it can withstand short-circuits.

Secondary Injection: Tests the protection relays by simulating faults to ensure they trip at the right settings.

Contact Resistance: Measures the quality of electrical connections to prevent overheating.

Breaker Timing: Measures how fast the circuit breaker opens and closes.

Q: Why can't we just use individual testers?

A: You can, but the test bench integrates all the necessary test equipment (current injector, micro-ohmmeter, relay tester) into a single, automated system. This is much faster, safer, and provides integrated data logging for comprehensive reports.

Q: Is it safe to operate?

A: It is designed with multiple safety features (emergency stops, interlocks, automatic discharge). However, it must only be operated by trained and qualified personnel who follow strict safety procedures, as it involves high currents and voltages.

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