24kV Isolated High Voltage Handcart

The ZIKAI 24kV Isolated High Voltage Handcart is a high voltage trolley type switchgear with a rated voltage of 24 kilovolts (kV) and an isolation function. This equipment is mainly used for the distribution and control of power systems, enabling safe and reliable operation and maintenance in high-voltage environments. The ZIKAI 24kV Isolated High Voltage Handcart has been shortlisted for the National Grid, reflecting its acceptance in utility-grade applications. For procurement of ZIKAI 24kV Isolated High Voltage Handcart, the unit supports rated currents of 1250A, 1600A, and 2000A, with short-circuit breaking capacity of 25kA or 31.5kA.

Zi Kai 24kV isolated high voltage Handcart product parameters:

number	item	unit	data
1	Rated voltage	kV	40.5
2	1min power frequency withstand voltage (RMS)	kV	95
3	Lightning impulse withstand voltage (peak)	kV	185
4	Rated frequency	Hz	50
5	Rated current	A	1250,1600,2000
6	Rated short-time withstand current	kA	25,31.5
7	Rated peak withstand current	kA	63,80
8	Rated short circuit duration	S	4
9	Rated short-circuit breaking current	kA	25,31.5
10	Rated short-circuit closing current	kA	63,80
11	Rated operating sequence		0-0.3s-CO-180s-CO
12	Breaking time	ms	<80
13	Rated short circuit breaking current breaking times	time	20
14	Individual capacitor bank breaking current	A	630
15	Back-to-back capacitor bank breaking current	A	400
16	Rated operating voltage	V	AC110,220;DC110,220
17	Mechanical life	time	10000

Zi Kai 24kV isolated high voltage Handcart Outline and mounting dimensions

Features

Rated Voltage and Insulation Level

We designed this product for 24kV systems with a maximum rated voltage of 40.5kV. It withstands 95kV power frequency voltage and 185kV lightning impulse voltage, providing sufficient dielectric strength for medium voltage applications.

Isolation Function

The isolation feature allows operators to disconnect the unit from the power supply during maintenance or overhaul. We incorporated this isolation capability to create a visible break point and reduce electrical hazards for maintenance personnel.

Trolley-Type Design

The trolley structure enables movement between disconnected, test, and working positions. Operators can push the unit into position or withdraw it for servicing without de-energizing the entire switchgear lineup.

Protection Systems

We equipped this product with overcurrent protection and overvoltage protection mechanisms. These protection functions respond to fault conditions and help prevent damage to downstream equipment.

Mechanical Durability

With 10,000 mechanical operations rated life, we built this unit to reduce the frequency of maintenance interventions. The operating mechanism delivers consistent performance over the equipment service life.

 

Outline and Mounting Dimensions

Parameter	Description
Trolley height	Standard cubicle matching dimension
Trolley width	Standard cubicle matching dimension
Trolley depth	Standard cubicle matching dimension
Grounding contact	Integrated
Secondary disconnect	Automatic engagement

For specific dimensional drawings and mounting hole locations, please contact our technical support team with your cubicle manufacturer and model number.

 

Applications

Power Plants We install this product in auxiliary power systems and generator circuits for isolation and protection.

Substations Distribution substations use our unit for feeder control, transformer protection, and busbar isolation.

Industrial Facilities Manufacturing plants, mining operations, and data centers deploy our product within their medium voltage distribution networks.

Commercial Buildings Large commercial complexes with on-site medium voltage service use this unit for main switching and isolation.

 

Short Circuit Performance Specifications

Parameter	Value Option 1	Value Option 2
Rated short-time withstand current	25 kA	31.5 kA
Rated peak withstand current	63 kA	80 kA
Short circuit duration	4 seconds	4 seconds
Rated short-circuit breaking current	25 kA	31.5 kA
Rated short-circuit closing current	63 kA	80 kA
Short circuit breaking operations	20 times	20 times

 

Capacitor Switching Capability

Application	Breaking Current
Individual capacitor bank	630 A
Back-to-back capacitor bank	400 A

This switching capability makes our product suitable for power factor correction and harmonic filter applications.

 

Product Details

Materials We manufacture this unit using epoxy resin insulators, silver-plated contacts, and steel trolley frames. Current-carrying components are copper or copper-alloy with adequate cross-section for rated currents.

Manufacturing Process We produce this product in our production workshop following standardized layout principles. We use EP software to manage production processes from raw material receiving to final assembly.

Quality Control Each unit we ship undergoes power frequency withstand voltage testing, contact resistance measurement, and mechanical operation verification before leaving our facility.

 

Safety and Operation Guidelines

Operator Training Requirements

Personnel operating this unit must complete training on trolley positioning, isolation procedures, and emergency manual operation. We recommend that you do not allow untrained personnel to move or operate the equipment.

Pre-Operation Inspection

Before moving the unit into the working position, we suggest you:

Verify all primary and secondary disconnects are aligned
Check that grounding contacts are clean and undamaged
Confirm the trolley is fully seated on guide rails
 

Maintenance Schedule

Interval	Action
Every 2000 operations	Inspect main contacts for wear
Annually	Measure insulation resistance
Every 5000 operations	Lubricate trolley moving parts
As needed	Replace arc chutes if eroded

 

Zi Kai 24kV isolated high voltage Handcart Details

certificates

Matters needing attention

When using "24kV isolated high voltage Handcart", it is necessary to strictly abide by the relevant safety operating procedures and precautions. Operators should receive professional training to understand the performance, structure and operation methods of the equipment to ensure the safety and effectiveness of the operation. In addition, you need to regularly maintain and check the device to discover and handle potential problems and hidden dangers in a timely manner.

FAQ