20kv Load Break Switch Factory – ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker – Timetric

Short Description:

Place of Origin: Zhejiang, China

Brand Name: Timetric

Type: Insulation Sleeving

Material: epoxy resin

Application: High Voltage

Rated Voltage: 24Kv

Tensile Strength: >10kn

rated current: 630-1600A

technology: APG

Product Detail

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No matter new shopper or old customer, We believe in very long expression and dependable relationship for Circuit Breaker Outdoor, Vcb Breaker, Live display indicator, Together with our efforts, our products have won the trust of customers and been very salable both here and abroad.

20kv Load Break Switch Factory – ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker – Timetric Detail:

ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker

Summary

ZN85-40.5(3AV3) indoor high voltage vacuum circuit breaker is of rated voltage 40.5kV, three-phase and AC 50/60Hz. It applies to mining firms, power house and substation acting as protection and control electric apparatus. It is also applicable in occasions with frequent operation.

Ambient condition

1. Altitude: ≤1000m;2. Ambient temperature: -25℃~+40℃;3. Relative humidity: daily average ≤95％, monthly average ≤90％;4. Earthquake intensity: ≤8 degree;5. Applicable occasions should free from inflammables, explosives, corrosivesand severe vibration.

Structure feature

1. The arc-extinguish chamber is on the upper part and the mechanism is on the lower part. This structure is convenient for debug.2. Complex insulating structure using air and organic material; Compactable dimension and small weight.3. Vacuum arc-extinguish chamber of Cutler-Hammer Company (USA) and domestic ZMD are both applicable for the VCB. Both twokinds of chambers extinguish arc by vertical magnetic field and featuring with low cut-off and good on-off capability with asymmetry.4. Simple spring operation mechanism is free from maintenance within 10000 times of operations.5. Lead-screw propeller, easy and stable operation and good self-locking capability.

ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker

Technical specification

No.	Ltem		Unit	Data
1	Rated voltage		KV	40.5
2	Rated current		A	1250		1600	2000、2500
3	Rated short circuit breaking current		KA	25	31.5	25	31.5
4	Rated dynamic stability current (peak)		KA	63	80	63	80
5	4S thermal stability current		KA	25	31.5	25	31.5
6	Rated short circuit dosing current (peak)		KA	63	80	63	80
7	Rated short circuit current breaking time		Times	20
8	Rated operating sequence			0-O.3s-C0-I80s-C0
9	Rated insulation voltage level	1 min power frequency withstand voltage	KV	95
		Lightning impulse withstand voltage(peak)		185
10	Mechanical life		Times	10000
11	Rated single capacitor bank opening and closing current		A	630
12	Rated back-to-back capacitor bank current		A	400
13	Rated voltage of energy storage motor		V	AC、DC：110; 220
14	Rated power of energy storage motor		W	≤230
15	Energy storage time of energy storage motor		s	≤15
16	Rated voltage of opening and closing coil		V	DC：110;220
17	Rated current of opening and closing coil		A	1.05(110V) 0.96(220V)
18	Contact stroke		mm	20±2
19	Contact contact stroke		mm	7.5 ±1.5
20	Three-phase opening,dosing phase asynchronous		ms	≤2
21	Contact closing bounce time		ms	≤3
22	The main circuit resistance (not include the contact arm)		M Q	≤40

parameter2 ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker

Outline overall and installing dimensions

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The corporate upholds the philosophy of "Be No.1 in excellent, be rooted on credit rating and trustworthiness for growth", will keep on to serve outdated and new clients from home and abroad whole-heatedly for 20kv Load Break Switch Factory – ZN85-40.5 Indoor High Voltage Vacuum Circuit Breaker – Timetric , The product will supply to all over the world, such as: Swiss, Borussia Dortmund, Honduras, We supply professional service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound products with good logistics service and economical cost. Depending on this, our products are sold very well in the countries in Africa, the Mid-East and Southeast Asia. Adhering to the business philosophy of ‘customer first, forge ahead', we sincerely welcome clients from at home and abroad to cooperate with us.

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