Product Introduction

HTY5320-2--

This Circuit Breaker Test Set is a specialized equipment used in power systems to test the mechanical action characteristics of high-voltage switchgear such as circuit breakers, isolating switches, and grounding switches. Its most core and distinctive technology is the "dual terminal grounding" testing function, which solves a major problem encountered by traditional testing methods in the field.

Technical Parameters

Travel measurement	3. Moving contact stroke (stroke) (optional for 3-way stroke measurement)
	Contact stroke (open distance)
	Over travel
	Overshoot or rebound stroke
Measuring range	Linear sensor: 50mm, measuring range: 0-50mm, resolution :0.1mm
	Rotating sensor: 345°, measuring range: 0-1000mm, resolution: 0.08°
	The sensor has an invalid area of 15 degrees, and the effective area of the sensor can be seen in the instrument during installation, and the value displayed is about 160-200 degrees.
	Acceleration sensor measurement range: 0-300mm, resolution: 0.1mm
Coil current	Maximum current 20A, resolution: 0.01A
Coil resistance measurement range	0 ~ 2000Ω, resolution: 0.01Ω
Instrument power supply	AC220V ± 10%; 50Hz ± 10%
Dc power output	DC6 ~ 270V continuous adjustable, DC24V≤15A (short time), DC220V≤ 20A(short time)
External trigger voltage	10.AC/DC10-300V, current ≤120A
Isolation switch measurement range	(1) Voltage output: DC6～270V(adjustable)
	(2) Power output time: 0.01-20 seconds (configurable)
	(3) The maximum acquisition time of the fracture signal is 200 seconds
	(4) Can measure fracture closing, opening time, three-phase different periods, bounce time and number
Mainframe volume	400×263×175mm
Use environment	-20℃~+50℃
Relative humidity	≤90%

Core advantages

1. Extremely high safety: completely avoiding the operational risks and electric shock risks (induced electricity, misoperation, etc.) caused by disconnecting the grounding knife switch. During the testing process, both sides of the circuit breaker are always in a safe grounding state, in compliance with the strictest safety regulations.

2. Wide applicability: It completely solves the problem of testing GIS equipment, compact substations, old substations, or specific safety requirements where grounding cannot be disconnected. Suitable for all types of high-voltage switchgear (AIS, GIS, HGIS, tank circuit breakers, column circuit breakers).

3. Easy and efficient operation: eliminates the tedious steps and waiting time of disconnecting and restoring the grounding knife switch, greatly shortens the preparation time for testing, and improves on-site work efficiency.

4. High reliability of testing: Advanced isolation and differential measurement techniques are adopted, with strong anti-interference ability, ensuring the accuracy of test data even in complex on-site electromagnetic environments.

Typical application scenarios

Regular preventive testing or post maintenance testing of circuit breakers in substation GIS equipment.

An open type (AIS) substation with limited space and inability to disconnect one side of the grounding.

The safety regulations strictly require that the equipment must be grounded on both sides during testing.

Need to quickly complete a large number of switch tests and pursue high efficiency in situations.

In situations where there are security concerns regarding traditional testing methods.

HTY5233-2-

Summarize
The Circuit Breaker Test Set (double grounded) is an important technological advancement in the field of power testing equipment. It perfectly solves the worldwide problem of mechanical characteristic testing of high-voltage switchgear in the grounded state on both sides through innovative high isolation and differential measurement technology. Its core value lies in significantly improving the safety, convenience, and efficiency of on-site testing, especially suitable for GIS and various difficult to disconnect and grounded substation scenarios, and has become an indispensable advanced tool in modern power system maintenance. Choosing instruments with truly reliable "double ended grounding" testing capabilities is crucial for ensuring the safety of testing personnel, improving work efficiency, and ensuring the reliable operation of power grid equipment.