Products
Outdoor high-voltage vacuum circuit breaker type ZW7-40.5
This series of high-voltage vacuum circuit breakers for outdoor installation has such advantages as safety and reliability in operation, ease of maintenance, and a long turnaround time.
Description
marker
Product Description
This series of high-voltage vacuum circuit breakers for outdoor installation has such advantages as safety and reliability in operation, ease of maintenance, and a long turnaround time. Thanks to the use of new space-filling insulation material, condensation does not form on the outside of the arc chute and the inside wall of the porcelain cover. Current transformers located inside or outside the drive housing in the overall design facilitate installation. In addition, the problems of oil leakage, gas leakage and toxicity inherent in other types of switches are eliminated. Since the moving and fixed contacts of this switch are hermetically sealed in a vacuum arc-extinguishing chamber, and vacuum is used as an insulating and arc-extinguishing medium, it has a number of advantages that are unattainable for other types of switches. Therefore, this product is an ideal replacement for multi-volume DW type oil circuit breakers. The layout with the operative drive box placed in the middle part of the circuit breaker is a high-voltage vacuum circuit breaker with a central drive location. The overall length of this version of the switch is 260 mm less than that of the original switch, which is suitable for installation in places with limited space.
This product is designed for use in 40.5 kV, 50 Hz three-phase distribution systems for making and breaking load current, overload current and short circuit current.
1. Also can be used in the circuits of SVG high-voltage storage power plants as the main input switch.
2. For application locations up to 2000 meters above sea level, the pole spacing is 710mm.
3. Can be installed in places at altitudes up to 4500 meters above sea level and above, overall dimensions can be customized.
| No. | Parameter | Unit change | Meaning | ||
| 1 | Rated voltage | kV | 40.5 | ||
| 2 | Nominal insulation level | Power frequency test voltage for 1 min (rms value) | Dry test | kV | 95 |
| Wet test | kV | 80 | |||
| Lightning impulse test voltage (peak) | kV | 185 | |||
| 3 | Rated current | A | 1250/1600/2000 | ||
| 4 | Rated short circuit breaking current | kA | 20/25/31.5/40 | ||
| 5 | Nominal sequence of operations | — | O-0.3s-CO-180s-CO | ||
| 6 | Rated capacitor bank disconnecting current | A | 400 | ||
| 7 | Number of short circuit breaking operations | cycles | 30 | ||
| 8 | Rated short-circuit inrush current (peak) | kA | 50/63/80/100 | ||
| 9 | Rated peak current withstand current | kA | 50/63/80/100 | ||
| 10 | Rated short-time current | kA | 20/25/31.5/40 | ||
| 11 | Short circuit current duration | with | 4 | ||
| 12 | Total shutdown time | with | ≤0.08 | ||
| 13 | Mechanical wear resistance | cycles | 20000 | ||
| 14 | Rated operating voltage and rated voltage of auxiliary circuits | B | AC, DC 220, 110 | ||
| 15 | Gap between contacts | mm | 22±2 | ||
| 16 | Contact overtravel | mm | 4±1 | ||
| 17 | Average shutdown speed | m/s | 1.7±0.2 | ||
| 18 | Average switching speed | m/s | 0.7±0.2 | ||
| 19 | Contact bounce time when turned on | ms | ≤3 | ||
| 20 | Non-simultaneous switching on (switching off) of three phases | ms | ≤2 | ||
| 21 | On time | ms | ≤150 | ||
| 22 | Shutdown time | ms | ≤60 | ||
| 23 | DC resistance per phase | mOhm | ≤100 | ||
contact us
Related Popular Products
Outdoor high voltage disconnect switch GW5-40.5 series
This series of high voltage disconnectors is a new type of switching device, modernized and designed by our factory in accordance with current national and international standards to eliminate some of the problems inherent in the previous GW5 disconnectors.
Complete pole switch with integration of primary and secondary equipment type ZW32-12 (deep integration)
The complete pole switch with the integration of primary and secondary equipment (support type with deep integration) complies with the requirements of the standardized design scheme set out in Document No. 151 of the Equipment Department of the State Grid Corporation of China.
Low Voltage High Speed Vacuum Contactor CNF Series
Vacuum circuit breakers of the CNF series are designed for shunt protection of semiconductor electronic devices. The main contacts of the bypass switch are connected in parallel with the semiconductor device.
Indoor Vacuum Load Switch FZ(R)N35-40.5 Series
Combined device - indoor high voltage vacuum load switch with fuse (hereinafter referred to as combined device) is a switching equipment specially designed for new energy fields such as wind power and photovoltaic power.
CKJ5 Series Low Voltage Vacuum Contactor
This series of vacuum contactors is designed for use in AC electrical networks with a frequency of 50–60 Hz with a rated main circuit voltage of up to 1.6 kV and a rated current of 160 A, 250 A, 400 A and 630 A.
JCZ1-12 Series Vacuum Contactor
This series of high voltage vacuum contactors adopts high quality vacuum arc chutes combined with metal frame and insulation supports to provide superior breaking performance.
High-voltage indoor disconnector type GN24-12
The GN24-12 series indoor high-voltage disconnector is designed for use in 50 Hz AC circuits with a rated voltage of 10 kV to open and close the circuit in the presence of voltage without load current.
Battery for parking air conditioner with emergency start function
Changzheng New Energy Company introduces the 24V 314Ah lithium iron phosphate battery, specially designed for powering parking lot air conditioners. The battery is made according to the 8S1P scheme. Rated voltage - 25.6 V, operating range - from 20 V to 29.2 V. Capacity - 314 Ah, total energy - 7912 Wh. Maximum DC output power is 3780 W.
JCZ8G-12 Series High Altitude Vacuum Contactor
This series of high voltage vacuum contactors for high mountain areas is developed by our company in accordance with market needs. The contactors are equipped with high quality military grade vacuum arc chutes.
High-voltage indoor disconnector type GN19-12
This series of products is designed for use in 50 Hz AC electrical systems with rated operating voltage 6 kV, 10 kV and rated operating current 400 A, 630 A, 1250 A as indoor installation switching equipment for opening and closing a circuit under no-load voltage.
Low-voltage commercial metering point with prepayment
This product is intended for use in low-voltage distribution lines with a rated frequency of 50 Hz, transformer power 20-315 kVA, rated voltage 400 V and below for prepayment and metering control purposes.
High-voltage disconnector for indoor installation type GN27-40.5
High-voltage indoor AC disconnect switch GN27-40.5 (hereinafter referred to as the disconnector) is a high-voltage electrical equipment for indoor installation of three-phase alternating current 50 Hz, two-column horizontal rotary type, designed to turn on and off high-voltage lines in the presence of voltage without load.
Liquid ultra-fast chargers
The Changzheng New Energy company's own development is the liquid ultra-fast charger CZ-800V/600A. Peak power is 480 kW, in 10 minutes the power reserve is replenished by 400 km. The device has an IP65 protection rating and a CQC five star safety certificate. Suitable for fast charging of all types of passenger and commercial vehicles.
High Voltage Vacuum Switch with Permanent Magnets for Switching Capacitors ZN3A-ZNT3
This series of high voltage magnetic drive vacuum circuit breakers is equipped with high quality vacuum arc chutes, as well as advanced and reliable bistable magnetic drive and intelligent controller.
Wall mounted battery for home
Changzheng New Energy Company presents a wall-mounted storage battery for home based on lithium iron phosphate with a voltage of 57.6 V and a capacity of 86 Ah. The capacity of one module is 4.953 kWh. Parallel connection of several modules is supported to expand the energy storage system up to 10–30 kWh. The battery is compatible with solar panels and inverters, providing backup power for household needs.
P25 Liquid ultra-fast charging for UAV
Changzheng New Energy and Technology Co., Ltd. (Henan) introduces three models of high-power lithium batteries for unmanned aerial vehicles. All models are compatible with UAV power systems and equipment with the appropriate electrical parameters.
-
-
-
-
-
-
whatsapp
-
WeChat
