Mv Room - Huawei STS-3000K-H1 Installation Manual

STS-(3000K, 6000K)-H1 Smart Transformer Station
(Spain, Eiffage Turroneros)
Installation Guide
No. Item
4 Oil level gauge
5 Oil surface
thermometer
6 Pressure relief valve
7 Off-load tap
changer

2.2.4 MV Room

Issue 02 (2020-02-21)
Function
Indicates the oil level.
Measures and controls
the temperature of the
top layer of transformer
oil.
Releases pressure.
Regulates the voltage.
No cable connector is installed in cabinet G1 or G3. The cable connectors in the figure are for reference
only. The actual position and dimensions may vary.
Copyright © Huawei Technologies Co., Ltd.
Description
insulation oil.
Indicates the oil level of the transformer oil
cabinet and reports the alarms of high and low oil
levels.
Displays the top layer of transformer oil in real
time and issues alarms and trip signals through
the built-in temperature control switch.
If a transformer is faulty, a large amount of gas is
generated, and the pressure of the insulation oil
increases sharply. When the certain threshold is
reached, the transformer oil is discharged and the
internal pressure of the transformer decreases to a
normal value. At the same time, a signal is sent to
trip the circuit breaker in the ring main unit.
There are five levels. Level 1 indicates the
maximum tapping value, level 3 indicates the
rated tapping value, and level 5 indicates the
minimum tapping value.
2 Product Overview
16