HUW1
Series Intelligent Universal Circuit Breaker
1
1
Scope of Application
The HUW1 Series Intelligent Universal Circuit Breaker (hereinafter referred to as
“circuit breaker”) is suitable for
distribution networks with AC 50 Hz, rated working voltage of 690 V and rated current up to 6,300 A, and is mainly
used for power distribution, power feeding and power generation protection, so as to protect circuits and power
equipment from faults such as overload, undervoltage, overvoltage, current voltage imbalance, short circuit and
grounding fault. The rational operation of the power grid can be realized through load monitoring, regional interlock
and other functions. Furthermore, the circuit breaker can also be used to measure power grid parameters such as
current, voltage, power, frequency, electrical energy, demand and harmonics. It can also be directly used for overload,
undervoltage and short-circuit protection of motors and generators.
The core component of circuit breakers adopt intelligent controllers, which can realize accurate selective
protection, so as to avoid unnecessary blackout and enhance the reliability, continuity and safety of power supply.
These components
can also be equipped with open communication interfaces to realize telemetering, telesignaling,
telecontrol and teleregulation, thus meeting the requirements of the control center and the automation system.
The circuit breaker series can be used as isolators without intelligent controllers and transformers.
The circuit breaker series can be compatible with top-in or bottom-in incoming lines, which is suitable for various
low-voltage power distribution fields such as power stations, factories and intelligent buildings, and can also be used
for infrequent starting of motors.
The derivative products of this series of circuit breakers, HUW1PVA and HUW1F, have passed the
ultra-high/-low temperature environment test and the "three prevention" related test, and are suitable for photovoltaic
and wind power generation systems with AC 50 Hz, rated voltage up to 690 V and rated current up to 3,200 A. They
are mainly used for power distribution, power feeding and power generation protection, so as to protect the lines and
power supply equipment from faults such as overload, undervoltage, overvoltage, current voltage imbalance, short
circuit and grounding fault.
The product complies with GB/T 14048.2
Low-voltage Switchgear and Controlgear
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Part 2:
Circuit Breakers.
2
Product Model Description and Classification
2.1
Product model description
2
.
2
Classification
2.2.1
According to the installation mode
Fixed, drawer.
2.2.2
According to the number of poles
Three-pole, four-pole.
2.2.3
According to the operation mode
Electrical operation, manual operation (for overhaul and maintenance).
2.2.4
Release type
Intelligent controller, undervoltage instantaneous (or delay) release and shunt strip.
2.2.5
According to the intelligent controller
Type L (DIP), Type M (digital) and Type H (liquid crystal).
2.2.6
According to the wiring mode
Horizontal wiring, vertical wiring.
3
Normal Working, Installation and Transportation Conditions
3.1
Normal working conditions
a) The ambient air temperature shall be -5°C to +40°C (-40°C to +70°C for HUW1F and HUW1PVA); and the
average temperature within 24 hours shall not 35°C.
Note: If the upper limit e40°C or that the lower limit is lower than -5°C, the user shall consult with the
manufacturer.
b) The altitude of the installation location shall not exceed 2,000 meters.
Note: If the circuit breaker is used at an altitude above 2,000 meters, the user shall consult with the
manufacturer.
c) The relative atmospheric humidity does not exceed 50% when the ambient air temperature is +40°C, and a
higher relative humidity is allowed at a lower temperature. For example, when the average maximum relative
Derived
model
Shell frame
level
Type
Number
of poles
Rated
current
Rated
voltage
Mounting
type
Drawer
Fixed
Huanyu Group Zhejiang
Hi-tech Co., Ltd.
Universal circuit
breaker
Design
number
Accessories
PVA: Special for
photovoltaic
F: Special for wind
power
N/A
With
undervoltage
N/A
