1.remotely control hand coal drill 2.protection of short circuit,over load,current leakage
Purpose
It is used to control remotely and carry the protections of short-circuit, over load and current leakage for the rated voltage 127V,rated power1.2KW electrical coal drill.
Technical Features
1)With protections of short-circuit, over load and current leakage.
2)The protection of short circuit is sensitive and reliable, the main protective components with self-checking function; The short circuit protection adopts of double protections of carrier frequency detection and fuse box; when short circuit happened with non-working, only to achieve short circuit locked; when protector responses ,the circuit has the self lock function.
3)Adopting preconducted loop ,it can control the start or stop of electrical coal drill;
When t he drill stopping wok, the cable has no wire , secure and reliable;
4)The transformer of drill, control switch, short circuit protection, current leakage protection, preconduct control loop are made of comprehensive protection device,
architecture simple, usage and maintenance convenient.
Certificates
1)Production Approval
2)Explosion-proof Certificate of Conformity
3)Safety Certificate of Approval for Mining Products
4)E-Mark: ExdI
Technical Data
Main Transformer | Control &Protection | ||||||||
Control | Current Leakage | Short Circiut | Over Load | ||||||
Rate Capacity (KVA) | Rated Voltage (V) | Rated Current (A) | Power of controlled drill(KW) | Setting Resistance of Single Phase Curent Leakage (KΩ) | Locked Resistance of Single Phase Current Leakage (KΩ) | Breaking Time of Grounding Device by Single Phase 1KΩ Resistance) | Valid Protection Distance(M) | Breaking Time of Short Circuit Device(S) | Value of Current(A) |
2.5 | 660(380)/127 | 2.19(3.79)/10.85 | 1.2 | 2 | 4 | 0.25 | 0-300 | 0.1 | 10-16 |
4 | 1140(660)/127 | 1.27(2.19)/10.85 | 2*1.2 | ||||||
Mining Explosion Proof Coal Electric Drill Protector
