Vertiv NetSure HVT F02 CK1 User manual

NetSure™
HVT F02 CK1 Power System
User Manual
Version: V1.1

Vertiv™ NetSure™ HVT F02 CK1 Power System User Manual
Vertiv™ NetSure™ HVT F02 CK1 Power System User Manual
The information contained in this document is subject to change without
notice and may not be suitable for all applications. While every precaution
has been taken to ensure the accuracy and completeness of this
document, Vertiv assumes no responsibility and disclaims all liability for
damages resulting from use of this information or for any errors or
omissions. Refer to other local practices or building codes as applicable
for the correct methods, tools, and materials to be used in performing
procedures not specifically described in this document.
The products covered by this instruction manual are manufactured
and/or sold by Vertiv. This document is the property of Vertiv and
contains confidential and proprietary information owned by Vertiv. Any
copying, use or disclosure of it without the written permission of Vertiv is
strictly prohibited.
Names of companies and products are trademarks or registered
trademarks of the respective companies. Any questions regarding usage
of trademark names should be directed to the original manufacturer.
Technical Support Site
If you encounter any installation or operational issues with your product, check the pertinent section of this
manual to see if the issue can be resolved by following outlined procedures.
Visit https://www.vertiv.com/en-us/support/ for additional assistance.

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TABLE OF CONTENTS
Admonishments Used in this Document .............................................................................................................................. v
Safety Precautions ...................................................................................................................................................................... vi
1 Installation .................................................................................................................................................................................1
1.1 Installation Preparation............................................................................................................................................................................................................................................. 1
1.1.1 Tools Preparation .................................................................................................................................................................................................................................... 1
1.1.2 Cables and Materials Preparation ............................................................................................................................................................................................ 1
1.2 Unpacking Inspection ............................................................................................................................................................................................................................................... 3
1.3 Mechanical Installation ............................................................................................................................................................................................................................................ 3
1.3.1 Cabinet Layout ......................................................................................................................................................................................................................................... 3
1.3.2 Installing Side Doors ............................................................................................................................................................................................................................4
1.3.3 Installing Power Cabinet ..................................................................................................................................................................................................................4
1.3.4 Connecting Between Cabinets .................................................................................................................................................................................................. 6
1.4 Parallel System ................................................................................................................................................................................................................................................................ 7
1.4.1 Parallel Items of Power system .................................................................................................................................................................................................. 7
1.4.2 Connecting Parallel Copper Bars ............................................................................................................................................................................................. 7
1.4.3 Connecting Power Cables .............................................................................................................................................................................................................. 8
1.4.4 Connecting AC Input Cables ..................................................................................................................................................................................................... 11
1.4.5 Connection of DC load cables .................................................................................................................................................................................................. 13
1.4.6 Connection of battery cables ................................................................................................................................................................................................... 14
1.4.7 Connecting DC 48V Auxiliary Power Cables and Signal Cables ..............................................................................................................15
1.4.8 User Signal Cables .............................................................................................................................................................................................................................. 18
1.5 Installing Options....................................................................................................................................................................................................................................................... 20
1.5.1 Installing Battery Temperature Sensor .......................................................................................................................................................................... 20
1.6 Installing Rectifiers (R400-25K) ................................................................................................................................................................................................................... 21
1.7 Installation Checklist ............................................................................................................................................................................................................................................... 22
2 Testing .................................................................................................................................................................................... 24
2.1 Controller (M822E) .................................................................................................................................................................................................................................................. 24
2.2 Setting DIP Switch ................................................................................................................................................................................................................................................... 24
2.2.1 Setting DIP Switches of AC Distribution Cabinet ................................................................................................................................................. 24
2.2.2 Setting DIP Switches of DC Distribution Cabinet .................................................................................................................................................. 25
2.3 Power-on ............................................................................................................................................................................................................................................................................ 25
2.3.1 Notes ............................................................................................................................................................................................................................................................... 25
2.3.2 Inspection before Power-on ......................................................................................................................................................................................................26
2.3.3 Preliminary Test of Rectifier ......................................................................................................................................................................................................26
2.3.4 Preliminary Test of Controller ..................................................................................................................................................................................................26
2.3.5 Preliminary Test of DC Distribution and Battery Connection ....................................................................................................................26
2.3.6 Insulation Hall Current Sensor Calibration ..................................................................................................................................................................26
2.3.7 Setting Basic Parameters of Controller ........................................................................................................................................................................... 27
2.4 Alarm Check and System Operation Status Check ................................................................................................................................................................... 27
2.5 Final Steps ........................................................................................................................................................................................................................................................................ 28
3 Operation ............................................................................................................................................................................... 29
3.1 LCD Operation of Power Distribution .....................................................................................................................................................................................................29
3.1.1 Operation panel .....................................................................................................................................................................................................................................29
3.1.2 LCD Operation of AC Distribution Cabinet ................................................................................................................................................................ 30
3.1.3 LCD Operation of DC Distribution Cabinet .................................................................................................................................................................. 31
3.2 Description of Temperature Acquisition .............................................................................................................................................................................................. 37

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3.3 Adding Load ...................................................................................................................................................................................................................................................................38
3.4 Rectifier Expansion ...................................................................................................................................................................................................................................................38
4 Maintenance .......................................................................................................................................................................... 39
4.1 Maintenance Requirements ............................................................................................................................................................................................................................ 39
4.1.1 General ......................................................................................................................................................................................................................................................... 39
4.1.2 Maintenance Tools and Equipment .................................................................................................................................................................................. 39
4.2 Routine Maintenance Items ............................................................................................................................................................................................................................ 40
4.3 Routine Maintenance ............................................................................................................................................................................................................................................ 44
4.4 Handling Controller Alarms ............................................................................................................................................................................................................................. 44
4.5 Replacing Controller ............................................................................................................................................................................................................................................... 45
4.6 Rectifier Fault ................................................................................................................................................................................................................................................................ 46
4.7 Replacing Rectifier .................................................................................................................................................................................................................................................... 47
4.8 Emergency Treatment ......................................................................................................................................................................................................................................... 48
Appendix 1 Technical Parameter ..................................................................................................................................... 49
Appendix 2 Glossary ........................................................................................................................................................ 52

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Admonishments Used in this Document
DANGER! Warns of a hazard the reader will be exposed to that will likely result
in death or serious injury if not avoided. (ANSI, OSHA)
WARNING! Warns of a potential hazard the reader may be exposed to that could result
in death or serious injury if not avoided. This admonition is not used for situations that
pose a risk only to equipment, software, data, or service. (ANSI)
CAUTION! Warns of a potential hazard the reader may be exposed to that could
result in minor or moderate injury if not avoided. (ANSI, OSHA) This admonition is not
used for situations that pose a risk only to equipment, data, or service, even if such
use appears to be permitted in some of the applicable standards. (OSHA)
ALERT! Alerts the reader to an action that must be avoided in order to protect
equipment, software, data, or service. (ISO)
ALERT! Alerts the reader to an action that must be performed in order to prevent
equipment damage, software corruption, data loss, or service interruption. (ISO)
FIRE SAFETY! Informs the reader of fire safety information, reminders,
precautions, or policies, or of the locations of fire-fighting and fire-safety
equipment. (ISO)
SAFETY! Informs the reader of general safety information, reminders, precautions, or
policies not related to a particular source of hazard or to fire safety. (ISO, ANSI, OSHA)

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Safety Precautions
To prevent unexpected problems, please read the operation instructions and safety precautions very carefully before operation.
The ‘Caution, Notice, Warning, Danger’ in this manual do not represent all of the safety points that should be observed, and are
only used as supplementary to the operation safety. Therefore, the personnel responsible for the installation and operation of
Vertiv products must be strictly trained to master the correct operations and all the safety points before actual operation.
When working on Vertiv products, you must observe relevant industry safety rules and special safety instructions provided by
Vertiv.
Electrical Safety
High voltage
DANGER! High voltage power supply provides power for equipment operation, any direct contact or indirect contact
through moist objects with high voltage or ac mains will result in fatal injury.
 You must observe relevant industry safety regulations when installing AC power supply equipment. The people who do
the AC standard installation must be licensed to operate high voltage and AC power.
 During operation, metal objects such as watches, bracelets, bangles, rings, etc. must be removed.
 In case water or moisture is found on the cabinet, turn off the power immediately. In moist environments, take strict
precautions to prevent water from entering the equipment.
 ‘Prohibit’ warning label must be attached to the switches and buttons which are not permitted to be operated on during
installation.
DANGER! Nonstandard or incorrect high voltage operation can present risk of electric shock or burn. The connection
and wiring of AC cables must be in compliance with local rules and regulations. Only those who are licensed to operate
high voltage and AC power can perform high voltage operations.
DANGER! Even if the system disconnects all AC inputs and battery inputs, the rectifier capacitor still needs to discharge
for a period of time. After measuring the DC bus voltage is below the safety voltage by a multimeter, then you can
maintain DC bus and device connected to the DC bus.
Tools
WARNING! In high voltage and AC operation, you must use special tools. No common or self-carried tools should be
used.
Thunderstorm
DANGER! Never perform high voltage, AC, iron tower, or mast operations on a day with thunderstorms. In thunderstorms,
strong electromagnetic field will be generated in the air. Therefore, the equipment should be solidly earthed in time to
avoid damage by lightning strikes.

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Static
NOTICE! The static electricity generated by the human body will damage the static sensitive elements on circuit board,
such as large-scale ICs, etc. Before touching any plug-in board, circuit board and IC chip, ESD wrist strap must be worn to
prevent body static from damaging the sensitive elements. The other end of the antistatic wrist strap must be solidly
earthed.
Short circuit
DANGER! During operation, never short-circuit the positive and negative poles of the DC distribution unit of the system
or the non-earthing pole and the earth. The power supply equipment is a constant voltage DC power supply. Short circuit
will result in equipment burning and endanger human safety.
 Check carefully the polarity of the cable and connection terminals when performing live DC operations.
 As the operation space in the DC distribution unit is very tight, please carefully select the operation space.
 Never wear a watch, bracelet, bangle, ring, or other conductive objects in operation.
 Insulated tools must be used.
 In live operations, keep the arm muscle in tense state so that when tool connection is loosened, the free journey between
the human body and tool is reduced to the minimum.
Battery
DANGER! Before working on the battery, read very carefully the safety precautions for battery transportation and the
correct battery connection method.
Non-standard operation on the battery will result in danger. In operation, pay close attention to prevent battery short circuit and
spill of the electrolyte. The spill of the electrolyte will pose potential threat to the equipment and erode the metal objects and
circuit board, thus causing damage to the equipment and short circuit of the circuit board.
 Remove the watch, bracelet, bangle, ring, and other metal objects.
 Use insulated tools.
 Wear eye protection and take preventive measures.
 Wear rubber gloves and apron to guard against spilt electrolyte.
 In battery transportation, the electrode of the battery should always be kept facing upward. Never put the battery upside
down or slanted.
After battery installation, check carefully that the battery cable polarity is correct and the connections are solid. After battery
connections are made and before the system is switched on, the battery fuse must be in open state in case the battery is
damaged due to over-discharge in this period.

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Others
Sharp corners of the objects
WARNING! When moving equipment by hands, wear protective gloves to avoid injury by sharp objects.
WARNING! Hot surface, do not touch.
Power supply cable
NOTICE! Make sure the cable and cable labels are in accordance with actual installation before cable connection.
Binding signal lines
NOTICE! Signal lines should be bound separately from heavy current and high voltage lines, with binding interval no less
than 150mm.

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1 Installation
The NetSure HVT F02 CK1 power system (power system for short) is designed by Vertiv Tech Co., Ltd. It is a new generation of
power system with high reliability and performance. It is mainly used in IDC equipment room of the large data center to provide
400V DC input power for the new generation of servers.
This chapter introduces installation and connection of the power system. Before installation, please read through safety
regulations, and then follow this instruction to carry out the installation and connection step and step.
1.1 Installation Preparation
1.1.1 Tools Preparation
See 4.1.2 Maintenance Tools and Equipment for the specifications of the tools. The tools must be well insulated and antistatic
handled prior to use.
1.1.2 Cables and Materials Preparation
Preparing cables
The cable design should meet relevant industry standards.
It is recommended to use the RVVZ cables as AC cables, and voltage level is 450/750V or higher. The cable should reach at least
+70°C temperature durability. With cable length shorter than 30 meters, the Cross-Sectional Area (CSA) calculation should be
based on the current density of 2.5A/mm2.
The sectional area of the DC load cables and battery cables should be computed with the following formula:
A=ΣI × L/K△U
In this formula: A is the sectional area of the lead (mm2), ΣI is the total current (A) passing through the lead, L is the length (m) of
the lead loop, △U is the permitted voltage drop in the lead, while K is the conductivity factor. Kcopper=57. For the sake of
distribution safety, the voltage drop on the cables should be compliant with corresponding rules.
NOTE! AC cables of rectifier cabinet have been configured into the cabinet delivery accessories. If AC distribution
cabinet is far from the rectifier cabinet at site, and the accessory cables cannot meet the requirements, then select the
appropriate cables according to actual situation.
The AC cable CSA of rectifier cabinet is listed in Table 1.1.
Table 1.1 AC cable CSA of rectifier cabinet
Connector Terminal Spec Cable CSA
AC input terminal M10 OT terminal Max. cable CSA: 150mm2
Grounding busbar M10 bolts (2 pcs) Max. cable CSA: 240mm2
Note: With cable length shorter than 30 meters, the CSA calculation should be based on the current density of 2.5A/mm2. The suggested CSA value is not less
than 70mm2
The AC cable CSA of AC distribution cabinet is listed in Table 1.2.
Table 1.2 AC cable CSA of AC distribution cabinet
Cabinet Connector Terminal Spec Remarks
PD380/630AFH-3-Y2 AC
distribution cabinet
AC input MCB (3P isolator, N
line not changed) Eight M12 bolts, (one route input) (suggested cable CSA 185mm2) Phase line and N line of AC power
Grounding busbar One M16 bolt (suggested cable CSA 120mm2) Earth terminal connected to
machine room

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Cabinet Connector Terminal Spec Remarks
PD380/800AFH-3-Y2 AC
distribution cabinet
AC input MCB (3P isolator, N
line not changed) Eight M12 bolts, (one route input) (suggested cable CSA 240mm2) Phase line and N line of AC power
Grounding busbar One M10 bolt (suggested cable CSA 120mm2) Earth terminal connected to
machine room
The CSA of DC cable depends on the current flowing through the cable and the allowable voltage drop. The recommended load
peak capacity is 1/2 to 2/3 of the MCB/fuse capacity.
The earth cable CSA of DC distribution cabinet is listed in Table 1.3.
Table 1.3 Earth cable CSA of DC distribution cabinet
Connector Terminal Spec Cable CSA
Grounding busbar M10 bolt (1 piece) Max. cable CSA: 240mm2
The battery cable CSA is listed in Table 1.4.
Table 1.4 Battery cable CSA
Battery Fuse Rated Current Max. Battery Current Min. Cable CSA Specs Of Cable Connector
Max. Cable Length (Allowable Voltage
Drop: 3.0v)
1250A 1200A 2 × 240mm2 M12 OT terminal 60m
1600A 1500A 2 × 240mm2 M12 OT terminal 60m
Note:
1. The specs are applicable at ambient temperature of 25°C. If the temperature is higher than this, the CSA of the cable should be increased.
2. The battery cable should reach at least +90°C heat durability. It is recommended to use double-insulated copper-core flame retardant cable as battery cable
The load cable CSA is listed in Table 1.5.
Table 1.5 Load cable CSA
Load Route Rated
Current
Max. Output
Current
Min. Cable
CSA
Max. Cable Length (Volt Drop:
3.0V, With Min. CSA) Max. Cable CSA Max. Cable Length (Volt Drop: 3.0V, With Max. CSA)
630A 500A 240mm2 81m 2 × 240mm2 163m
500A 400A 185mm2 78m 2 × 240mm2 201m
400A 320A 150mm2 78m 2 × 150mm2 157m
300A 240A 120mm2 84m 2 × 150mm2 209m
250A 200A 95mm2 81m 2 × 150mm2 252m
160A 120A 50mm2 69m 75mm2 105m
100A 80A 35mm2 72m 75mm2 157m
50A 40A 16mm2 66m 25mm2 105m
32A 25A 10mm2 66m 16mm2 108m
Note:
1. The specs are applicable at ambient temperature of 25°C. If the temperature is higher than this, the CSA of the cable should be increased.
2. The allowable max. current of the load shall be derated in accordance with the protection device rated cable of 80%.
3. Load route rated current value is only for typical value. The user needs to prepare appropriate cables according to the above data and the actual load rated
current value
The CSA of the system earth cable should be half of the maximum power distribution cable and not less than 95mm2. M10 bolt is
recommended for grounding busbar connection terminal.

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NOTE! Generally, in design the total current passing through the lead is calculated based on full load configuration.
Preparing other materials
1. Purchase materials according to the construction materials list and inspect the materials. For example, check the heat durability,
moisture resistance, flame resistance, and pressure resistance of the cables.
2. For the materials that need to be processed by other factories, the materials and the processing drawings should be provided
in advance for processing.
3. The auxiliary materials for power supply installation include expansion bolts, cable lugs, cable ties, and insulating tape.
1.2 Unpacking Inspection
The equipment should be unpacked and inspected after it arrives at the installation site. The inspection shall be done by
representatives of both the user and Vertiv Tech Co., Ltd.
To inspect the equipment, you should open the packing case, take out the packing list and check against the packing list that the
equipment is correct and complete. Make sure that the equipment is delivered intact.
Steps:
1. Open the packing case in which the packing list is put.
2. Take out the packing list.
3. Check the goods one by one according to the packing label.
4. Check the number and serial number of the packing cases.
5. Check the correctness of the equipment packing.
6. Check the number and type of the accessories.
7. Check the completeness of the equipment configuration.
1.3 Mechanical Installation
1.3.1 Cabinet Layout
Placing AC distribution cabinets, rectifier cabinets and DC distribution cabinets in different ways will directly affect the
configuration and installation of the system parallel components, thus the user should firstly determine the layout of each cabinet
of the system before installation and connection of the power system.
When the power system is placed in a standard configuration, the layout of the power system is shown in Figure 1.1.
Figure 1.1 Layout of rectifier cabinets and DC distribution cabinets

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NOTE! If the user does not use the layout mode in Figure 1, then parallel copper bars and parallel cables should be
customized. When placing an order, please provide the cabinet’s layout mode of the power system.
The power system adopts centralized-distributed control method, DC distribution cabinets can be placed separately from the
system. Typical applications are in different load concentration, such as different floors, nearby for power distribution. When DC
distribution cabinets are placed separately from the rectifier cabinet of the system, use cables to parallel connect DC distribution
cabinets.
1.3.2 Installing Side Doors
After determining the cabinet layout mode, check side doors installation of the rectifier cabinets, DC distribution cabinets and AC
distribution cabinets. Meet the following requirements before being installed:
1. Confirm that both ends of the whole row of cabinets have side doors for sealing.
2. Confirm that side doors are not installed in the middle of the rectifier cabinet and DC distribution cabinet, to facilitate system
inside parallel and internal wiring.
If the side doors installation of the rectifier cabinet, AC distribution cabinet and DC distribution cabinet does not meet the above
requirements, adjust the layout at site. The side doors are for the general design, which can be adjusted between each cabinet
according to the actual situations. See Figure 1.2 for side doors installation.
Figure 1.2 Installation of side doors
1.3.3 Installing Power Cabinet
The power cabinet can be installed directly onto a bracket or cement floor.
Determine the cabinet installation position in machine room according to Figure 1.3.
Figure 1.3 Determining cabinet installation position

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Steps:
1. Mark the installation position.
2. Determine the installation position of the power cabinet in the machine room according to the installation drawing.
3. Based on the mechanical dimensions (see Figure 1.4) of the installation holes of the power cabinet, determine the exact
position of the center points of the installation holes on the floor, and mark them with a pencil or oil pen.
4. Use electric drill to drill holes at the center points of the installation holes marked on the floor, and then use the expansion bolts
(accessories) to fasten the cabinet.
Figure 1.4 Installation dimensions of the cabinet base (unit: mm)
When the cabinet bottom plate is optional, part of the bottom plate of the DC cabinet needs to be installed on site. The specific
installation steps are as follows:
1. The DC cabinet has a bottom plate that is fixed at the rear bottom of the cabinet before delivery, as shown in Figure 1.5. Remove
the four fixing screws of the bottom plate on site, and then take off the bottom plate.
Figure 1.5 Removing the bottom plate
Fixing screw of
bottom plate (2pcs
for both left and
right side)
Bottom plate to
be removed Installation position
of bottom plate
Rear view
2. Install the removed bottom plate to the position shown in Figure 1.6 and tighten the four fixing screws of the bottom plate.

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Figure 1.6 Installing the bottom plate
Fixing screw
of bottom
plate (4 pcs)
Top view
Installation position of
bottom plate (cabinet
rear bottom)
1.3.4 Connecting Between Cabinets
Connection for side by side installation
Between rectifier cabinet and distribution cabinets, you need to use the connection straps (accessories) to fix them at the top, as
shown in Figure 1.7. The installation of the connection straps between other types of cabinets can also refer to Figure 1.7 for
connection.
Figure 1.7 Connecting between cabinets (Top view, unit: mm)
800
800
800
柜间连接片
柜间连接片
75.5

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1.4 Parallel System
1.4.1 Parallel Items of Power system
Finish the parallel assembly connection according to the configurations shown in Table 1.6.
Table 1.6 Parallel assembly
No. Item Description Related Link Remarks
1
Install parallel copper bars
for rectifier cabinet - DC
distribution cabinet
(required)
Parallel copper bars are
accessories 1.4.2 Connecting Parallel Copper Bars
When DC cabinet is separated from
the power system, use cables to
replace
2 AC parallel cables for
connecting rectifier cabinet
(required) AC cables are accessories 1.4.4 Connecting AC Input Cables
3
Connect RS485
communication cables
between AC distribution
cabinet and DC distribution
cabinet (required)
RS485 communication cables
are accessories
Connecting RS485 communication
cables in 1.4.7 Connecting DC 48V
Auxiliary Power Cables And Signal
Cables
4 Connect DC48V auxiliary
power cables (required) DC48V auxiliary power cables are accessories
Connecting DC 48V auxiliary power
cables in 1.4.7 Auxiliary Power
Cables And Signal Cables
5
Connect CAN
communication cables
between multiple rectifier
cabinets (optional)
CAN communication cables are
accessories
Connecting CAN communication
cables in 1.4.7 Connecting DC 48V
Auxiliary Power Cables And Signal
Cables
Configuration for two or more rectifier
cabinets
6 Controller DI and DO input
(optional) Make and route cables according to site situations 1.4.8 User Signal Cables
7 Temperature cables
installation (optional) Temperature cables are accessories 1.5 Installing Options
Note: Connect earth cables, AC input cables, load cables and battery cables according to 1.4.3 Connecting Power Cables
1.4.2 Connecting Parallel Copper Bars
Used to connect the adjacent rectifier cabinet and DC distribution cabinet, the single parallel copper bar has 1200A and 1600A
current carrying capacity. See Table 1.7 for description of parallel copper bar.
Table 1.7 Description of parallel copper bar
Code Description Length Spec Remark
21171484 Conductor-21171484-zp-1200A parallel
copper bar (Rectifier cabinet-DC cabinet) 333.5mm 100mm × 5mm For parallel connection between 1200A rectifier cabinet and adjacent DC cabinet
21171485 Conductor-21171485-zp-1200A parallel
copper bar (DC cabinet-DC cabinet) 180.5mm 100mm × 5mm For parallel connection between 1200A DC cabinet and adjacent DC cabinet
21171486 Conductor-21171486-zp-1200A parallel copper bar (Rectifier cabinet- Rectifier
cabinet) 486.5mm 100mm × 5mm For parallel connection between 1200A
rectifier cabinet and rectifier cabinet
21171476 Conductor-21171476-zp-1600A parallel
copper bar (Rectifier cabinet-DC cabinet) 333.5mm 100mm × 8mm For parallel connection between 1600A rectifier cabinet and adjacent DC cabinet
21171477 Conductor-21171477-zp-1600A parallel
copper bar (DC cabinet-DC cabinet) 180.5mm 100mm × 8mm For parallel connection between 1600A DC cabinet and adjacent DC cabinet
21171483 Conductor-21171483-zp-1600A parallel
copper bar (Rectifier cabinet- Rectifier
cabinet) 486.5mm 100mm × 8mm For parallel connection between 1600A
rectifier cabinet and rectifier cabinet
Configure and install the parallel copper bars according to Figure 1.8.
Procedures:

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1. If there are side doors between the rectifier cabinet and the DC power distribution cabinet, it needs to be removed.
2. Use parallel copper bars to respectively connect the DC positive busbar and DC negative busbar of the rectifier cabinet and DC
distribution cabinet, see Figure 1.8.
Figure 1.8 Parallel connection
NOTE! 1. When connecting the parallel copper bars, pay attention to the positive and negative poles of the copper bars.
2. If the recommended layout of rectifier cabinet and DC distribution cabinet shown in 1.3.1 Cabinet Layout is not
adopted, please contact Vertiv technical support personnel. 3. When expanding the old HVDC system, please contact
Vertiv technical support personnel for the connection of the parallel copper bars.
1.4.3 Connecting Power Cables
NOTE! 1. Before electrical connection, verify that the system is powered off. 2. Some terminals are hidden in the cover
below, remove the cover can see.
When connecting the power cable, it is necessary to select the appropriate cable according to the site conditions. The power
parallel cable of the rectifier cabinet and AC cabinet is selected from the power cable accessories listed in Table 1.8. Cut the cable
to proper length and crimp to cable terminals according to the actual position of the field cabinet.
Table 1.8 AC input power cable accessories of rectifier cabinet
Code Description Length Remarks
25030285 Cable-1000V-RVVZ70mm^2-black round-105°C - 45 ~ 126m
02234977 Accessory—W1PA5Z AC parallel cable accessory- 3 ~ 6 Each set contains six cable terminals and six pieces of
phase sequence color identification hear shrinkable
sleeve

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Connecting earth cables
Position of earth terminal for each cabinet is shown in Figure 1.9.
Figure 1.9 Earth terminals
AC distribution cabinet (rear view) Rectifier cabinet (front view)

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DC distribution cabinet (right view)
 Connection by optional AC distribution cabinet
The power system uses common earth mode. See Figure 1.10.
Procedures:
1. Use the earth cable to connect the earth terminal of the rectifier cabinet and the grounding busbar of the AC distribution
cabinet separately.
2. Use the earth cable to connect the earth terminal of the DC distribution cabinet and the grounding busbar of the AC
distribution cabinet separately.
3. Connect one end of the PE cable to the grounding busbar of the equipment room, and the other end to the grounding busbar
of the AC distribution cabinet.
Figure 1.10 Connection with optional AC distribution cabinet
 Connection without optional AC distribution cabinet

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If optional AC distribution cabinet is not configured, use the earth cables to connect the earth terminal of the DC distribution
cabinet to the earth terminal of the rectifier cabinet, and then connected to the grounding busbar of the equipment room.
1.4.4 Connecting AC Input Cables
Connection requirements
1. The AC input cables are wired from the user distribution switch, and connected to the output terminal when the power is to be
switched on. The AC input is fitted with protection devices for over-current, short circuit and lightning protection devices. The
capacity of the distribution switch should not be less than 1.5 ~ 2 times of the load capacity.
2. The yellow, green, red, and light blue AC cables correspond respectively to the AC phase A, B, C and neutral lines. If the cables
are of the same color, they should be numbered or identified with insulating tape of different colors at both cable ends.
3. The AC cables should be wired separately from the DC cables, with separation exceeding 150mm.
4. No splice, damage or scratch on the cables is permitted.
Connection with optional AC distribution cabinet
1. Connect the AC distribution cabinet and the user’s distribution switch outside the power system.
The AC cables can enter the system from either the top of AC distribution cabinet through cabling rack or the bottom of AC
distribution cabinet through trenching. After the AC input cables are led into the cabinet, connect them to the MCBs, as shown in
Figure 1.11.
Figure 1.11 Connection of AC input cables and AC distribution cabinet
2N
1N
2C
2B
2A 1C
1B
1A
AC input 1
AC input 2
PD380/630AFH-3-Y2 rear view (MCB)
2. Select the AC cables which connected to the AC distribution cabinet and the rectifier cabinet.
According to the position of the rectifier cabinet and the AC cabinet, the length of each cable is determined according to the
actual routing path.
3. The cable solder less terminal is not pressed. Perform pressure welding after cutting cable to the proper length。

Vertiv™ NetSure™ HVT F02 CK1 Power System User Manual
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4. Remove the AC output MCB panel from the AC distribution cabinet, and connect one end of the AC cable to the AC output
terminal of the selected MCB in the AC distribution cabinet, as shown in Figure 1.12.
Figure 1.12 Connection of AC input cables of rectifier cabinet in AC distribution cabinet (left view)
NOTE! Regardless of whether the output MCB is installed to the left or right, the phase sequence is wired in the order of
A, B and C from top to bottom.