HITACHI INDUSTRIAL EQUIPMENT SYSTEMS
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS
Description
Overview
Full line-up & Compact
Up to 6300A, ACB provides fully lined-up 3 frame.For each frame, there is just one size, which is smaller and more compact. It makes it possible for you to design the optimized volume panel.
* The highest breaking capacity:150kA (6300AF at 500VAC)
* 3 ampere frame sizes:2000/4000/6300AF
* N phase current conducting capacity: 100%
Trip relay
|
N type
|
A type
|
P/S type
|
Trip relays series
| N Type (Normal) | Self-power + Current protection |
|---|---|
| A Type (Ammeter) | Current Meter + Current protection + DO control + Communication |
| P Type (Power Meter) | A type + Power Meter + Voltage/Frequency/Unbalance protection |
| S Type (Supreme) | P type + Harmonics analysis (63 th) + Fault wave recording |
External configuration
ACB
Fixed type ACB
Draw-out ACB (Cradle)
Terms
| (1) | Trip relay |
|---|---|
| (2) | Counter |
| (3) | ON button |
| (4) | OFF button |
| (5) | Charge handle |
| (6) | Rated name plate |
| (7) | Charge/Discharge indicator |
| (8) | ON/OFF indicator |
| (9) | Corporation logo |
| (10) | Arc cover |
| (11) | Terminal cover |
| (12) | Cradle |
| (13) | Draw-out handle |
| (14) | Position indicator |
| (15) | Handle storage space |
| (16) | Pad lock button |
| (17) | Art chute |
| (18) | Control cover |
| (19) | Fixed type bracket |
Cradle
Internal
Rear
Terms
| (1) | Trip relay |
|---|---|
| (2) | Counter |
| (3) | ON button |
| (4) | OFF button |
| (5) | Charge handle |
| (6) | Rated name plate |
| (7) | Charge/Discharge indicator |
| (8) | ON/OFF indicator |
| (9) | Corporation logo |
Internal configuration
| Terms | |||
|---|---|---|---|
| (1) | Arc chute | (10) | Trip coil |
| (2) | Aux. switch control terminal | (11) | Closing coil |
| (3) | Control power supply terminal | (12) | Motor Ass'y |
| (4) | Trip relay control terminal | (13) | Aux. switch |
| (5) | Carrying grip | (14) | ON button |
| (6) | Trip coil or UVT coil | (15) | OFF button |
| (7) | Mechanism | (16) | MTD base |
| (8) | Main body | (17) | Trip relay |
| (9) | Counter | (18) | Front cover |
| Terms | |||
|---|---|---|---|
| (1) | Control circuit terminal block | (11) | Draw-in/out device |
| (2) | Control terminal | (12) | Arc extinguishing part |
| (3) | Auxiliary switches | (13) | Moving contact |
| (4) | Closing, Trip, UVT coil | (14) | Fixed contact |
| (5) | Trip relay | (15) | Conductor on line side |
| (6) | Front cover | (16) | Cradle nger |
| (7) | Mechanism | (17) | Cradle |
| (8) | Charge handle | (18) | Connecting conductor |
| (9) | Trip spring | (19) | Power supply CT |
| (10) | Closing spring | (20) | Conductor on load side |
Trip relays
The trip relay of ACB provides the additional protection functions for voltage, frequency, unbalance, and others in addition to main protection functions for over current, short-circuit, ground fault. It supports the advanced measurement functions for voltage, current, power, electric energy, harmonics, communication function, and others.
Analog trip function interlocked with mechanism enhanced a durability of devices as well as the breaking capacity of ACB.
Zone selective interlocking function makes the protective coordination more simple and thermal memory can be applied to various loads.