24kv Indoor Medium Voltage Spring Energy Storage Mechanism Insulation Reinforced Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Model NO.: ZN12-24
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB, Do as Your Request
• Certification: ISO9001-2000, CE
• Product Name: Vacuum Circuit Breaker
• Rated Voltage: 24kv
• Rated Current: 1250/1600/2000A
• Rated Short-Circuit Breaking Current: 31.5ka
• Rated Frequency: 50/60Hz
• Poles: 3
• OEM: Accept
• Transport Package: Wooden Case
• Specification: steel, expoxy resin
• Trademark: LIYOND
• Origin: China
• Production Capacity: 10000/Month

Product Description

24kV Indoor medium voltage spring energy storage mechanism insulation reinforced vacuum circuit breaker

The ZN12-24 vacuum circuit breaker is an indoor high-voltage switchgear with a rated voltage of 24kV and three-phase AC 50Hz. Its operating mechanism is a spring energy storage type, which can be operated by AC or DC, or manually.
This circuit breaker is a reinforced insulation type, which meets the requirements of the use environment in Class II polluted areas.
This circuit breaker has simple structure, strong breaking capacity, long life, complete operation functions, no explosion hazard, simple maintenance, suitable for control or protection switch of power plant, substation and other transmission and distribution systems, especially suitable for breaking important loads and frequently operated places.
This product complies with the GB1984-89 "AC High Voltage Circuit Breaker" standard.

 

Features
1. This indoor vacuum circuit breaker is equipped with a spring energy storage type operating mechanism which can be operated by AC, DC or hand.
2. Our three-phase circuit breaker with reinforced insulation fully meets the using requirements in areas with the filthy condition reaching Grade II.
3. With characteristics of simple structure, long service life, high breaking capacity, complete operating functions, convenient maintenance, and no explosion hazard, this product is suitable to be used as the control or protection switch for power transmission and distribution systems. It is particularly suitable for breaking important loads or for occasions requiring frequent operations.
4. Our indoor vacuum circuit breaker complies with the GB1984 AC High Voltage Circuit Breaker standard.

Applying Ambient Conditions
1. Altitude: less than 1000m
2. Ambient temperature: highest +40ºC, lowest -25ºC
3. Relative temperature: daily average not more than 95%, monthly average not more than 90%
4. Earthquake intensity: less than 8 degrees
5. No fire, explosion hazard, no corrosive gas and no violent vibration

 

PS: Products with special requirements, specifications and dimensions that need to be improved can be designed and manufactured according to user requirements.

Product Paramenters

S/N	Item	Unit	Parameter
1	Rated voltage	kV	24
2	Rated current	A	1250 1600 2000
3	Rated short-circuit breaking current	kA	31.5
4	Dynamic stability current	kA	80
5	4s thermal stability current	kA	31.5
6	Rated short-circuit making current (peak value)	kA	80
7	Rated short-circuit current breaking times	time	20
8	Rated operating sequence		o-0.3s-co-180s-os
9	Lightning impulse withstand voltage (full wave)	kV	125
10	Rated short-time power frequency withstand voltage (1min)	kV	65
11	Closing time	s	≤0.09
12	Opening time	s	≤0.055
13	Full breaking time	s	≤0.09
14	Mechanical life	time	10000
15	Rated current breaking times	time	10000
16	Rated capacitor bank breaking current	A	630
17	Energy storage motor power	W	275
18	Rated voltage of energy storage motor	V	110  220
19	Energy storage time	s	≤15
20	Rated voltage of closing electromagnet	V	110 220
21	Rated current of opening electromagnet	V	110 220
22	Rated current of overcurrent release	A	5
23	Auxiliary switch rated current	A	AC 10  DC 5

 

Drawing

FAQ

Q: Could I have prices of your products?

A: Welcome. Please feel free to send us inquiry here. We will reply you within 24 hours.

 

Q: Can I get a sample before the bulk order?

A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable.

 

Q: Can we print our logo/ company name on products?

A: Yes, of course, we accept OEM, then need you to provide brand authorization to us

 

Q:Do you accept product customization?

A:Yes, of course, please provide specific drawings or parameters, we will quote you after evaluation

Q: What is the lead time? 
A: The lead time depends on the quantities ordered, generally within 7-20 days after receiving the payment. 

 

Q: What is your Trade Terms? 
A: We accept EXW, FOB, CIF, FCA, etc. 

 

Q: What is your payment method?  
A: We accept T/T, Western Union, Paypal, irrevocable L/C at sight, etc 

 

Q: Do you inspect the finished products?

A: Yes, each step of production and finished products will be came out inspection by QC department before shipping. And we will provide goods inspection reports for your reference before shipment

Q: How to solve the quality problems after sales? 
A: Take photos of the quality problems and send to us for our checking and confirming, we will make a satisfied solution for you within 3 days.