ZN85C-40.5 Handheld Indoor High Voltage Vacuum Circuit Breaker

The ZN85C-40.5 handheld indoor high-voltage vacuum circuit breaker is an innovative switchgear designed specifically for 40.5kV indoor distribution systems. It adopts a handheld modular design and combines vacuum arc extinguishing technology, with a short-circuit current breaking capacity of up to 40kA. The handcart structure supports quick insertion and removal operations, increasing maintenance efficiency by 60%. It is compatible with KYN series switchgear and complies with GB/T 1984 and IEC 62271-100 standards. With a mechanical lifespan of over 10000 cycles and a protection level of IP4X, it is suitable for high-frequency operation scenarios in substations, industrial and mining power distribution, and data centers, providing a "flexible and portable, zero SF6 emission" green power protection solution.

Price：

￥0.00
Category：

Indoor High Voltage Vacuum Circuit Breaker
Browse number：

186
Release time：

2024-10-22 00:01:38
Quantity： - +
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Detailed Description

Product Overview

The ZN85C-40.5/T2000-31.5 indoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is suitable for three-phase AC 50Hz power systems at all levels, rated voltage 40.5KV, and can be used for load current, overload current, and fault current in industrial and mining enterprises, power plants, and substations.

The circuit breaker and operating mechanism adopt an upper and lower layout structure, effectively reducing the depth of the circuit breaker.

The three-phase arc extinguishing chamber and associated charged parts are isolated by three independent epoxy resin insulation cylinders, forming a composite insulation structure. The circuit breaker meets the requirements of air distance and creepage distance under normal operating conditions, and effectively reduces the volume of the circuit breaker. The arc extinguishing chamber and the dynamic and static conductive connection of the main circuit vacuum circuit breaker are installed inside the insulation cylinder, with a phase distance of only 300mm. All the main circuit electrical connections are fixed and have high reliability. The insulation cylinder is installed above the circuit breaker frame.

The spring operated mechanism specially designed for this new circuit breaker is installed inside the circuit breaker frame, and its structural characteristics are more suitable for the upper and lower layout of the circuit breaker, and become an integral part of the overall structure of the circuit breaker. The mechanism design is simple, and the output curve and its performance are more suitable for the characteristics and requirements of 40.5kV Vacuum Circuit Breakers.

The overall layout is reasonable, beautiful, and concise. Compact size, flexible operation, reliable electrical performance, long service life, easy maintenance, and maintenance free mechanism.

This circuit breaker is suitable for frequent operation, various occasions, and places with harsh operating conditions.

Technical Data

NO.	Item		Unit	Data
1	rated voltage		kV	40.5
2	Rated Absolute Edge level	1-minute power frequency voltage (effective value)	kV	95
		Lightning impulse withstand voltage (peak value)	kV	185
3	Rated frequency		Hz	50
4	Rated current		A	1250	1600		2000
5	4S rated short-time withstand current		kV	25		31.5
6	Rated peak withstand current		kV	63		80
7	Rated short circuit breaking current		kV	25		31.5
8	Rated short-circuit closing current		kV	63		80
9	Rated operating sequence			O-0.3s-CO-180s-CO
10	Rated short-circuit breaking current breaking times		times	20
11	Rated breaking current of capacitor bank		A	630
12	mechanical life		times	10000